2915 lines
125 KiB
C++
2915 lines
125 KiB
C++
/*
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* TLogServer.actor.cpp
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*
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* This source file is part of the FoundationDB open source project
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*
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* Copyright 2013-2018 Apple Inc. and the FoundationDB project authors
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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#include "flow/Hash3.h"
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#include "flow/Stats.h"
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#include "flow/UnitTest.h"
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#include "fdbclient/NativeAPI.actor.h"
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#include "fdbclient/Notified.h"
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#include "fdbclient/KeyRangeMap.h"
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#include "fdbclient/RunTransaction.actor.h"
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#include "fdbclient/SystemData.h"
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#include "fdbclient/FDBTypes.h"
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#include "fdbserver/WorkerInterface.actor.h"
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#include "fdbserver/TLogInterface.h"
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#include "fdbserver/Knobs.h"
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#include "fdbserver/IKeyValueStore.h"
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#include "flow/ActorCollection.h"
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#include "fdbrpc/FailureMonitor.h"
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#include "fdbserver/IDiskQueue.h"
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#include "fdbrpc/sim_validation.h"
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#include "fdbrpc/simulator.h"
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#include "fdbserver/ServerDBInfo.h"
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#include "fdbserver/LogSystem.h"
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#include "fdbserver/WaitFailure.h"
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#include "fdbserver/RecoveryState.h"
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#include "fdbserver/FDBExecHelper.actor.h"
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#include "flow/actorcompiler.h" // This must be the last #include.
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using std::pair;
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using std::make_pair;
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using std::min;
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using std::max;
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struct TLogQueueEntryRef {
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UID id;
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Version version;
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Version knownCommittedVersion;
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StringRef messages;
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TLogQueueEntryRef() : version(0), knownCommittedVersion(0) {}
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TLogQueueEntryRef(Arena &a, TLogQueueEntryRef const &from)
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: version(from.version), knownCommittedVersion(from.knownCommittedVersion), id(from.id), messages(a, from.messages) {
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}
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template <class Ar>
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void serialize(Ar& ar) {
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serializer(ar, version, messages, knownCommittedVersion, id);
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}
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size_t expectedSize() const {
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return messages.expectedSize();
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}
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};
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struct AlternativeTLogQueueEntryRef {
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UID id;
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Version version;
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Version knownCommittedVersion;
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std::vector<TagsAndMessage>* alternativeMessages;
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AlternativeTLogQueueEntryRef() : version(0), knownCommittedVersion(0), alternativeMessages(NULL) {}
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template <class Ar>
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void serialize(Ar& ar) {
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ASSERT(!ar.isDeserializing && alternativeMessages);
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uint32_t msgSize = expectedSize();
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serializer(ar, version, msgSize);
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for(auto& msg : *alternativeMessages) {
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ar.serializeBytes( msg.message );
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}
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serializer(ar, knownCommittedVersion, id);
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}
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uint32_t expectedSize() const {
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uint32_t msgSize = 0;
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for(auto& msg : *alternativeMessages) {
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msgSize += msg.message.size();
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}
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return msgSize;
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}
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};
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typedef Standalone<TLogQueueEntryRef> TLogQueueEntry;
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struct LogData;
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struct TLogData;
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struct TLogQueue : public IClosable {
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public:
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TLogQueue( IDiskQueue* queue, UID dbgid ) : queue(queue), dbgid(dbgid) {}
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// Each packet in the queue is
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// uint32_t payloadSize
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// uint8_t payload[payloadSize] (begins with uint64_t protocolVersion via IncludeVersion)
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// uint8_t validFlag
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// TLogQueue is a durable queue of TLogQueueEntry objects with an interface similar to IDiskQueue
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// TLogQueue pushes (but not commits) are atomic - after commit fails to return, a prefix of entire calls to push are durable. This is
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// implemented on top of the weaker guarantee of IDiskQueue::commit (that a prefix of bytes is durable) using validFlag and by
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// padding any incomplete packet with zeros after recovery.
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// Before calling push, pop, or commit, the user must call readNext() until it throws
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// end_of_stream(). It may not be called again thereafter.
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Future<TLogQueueEntry> readNext( TLogData* tLog ) {
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return readNext( this, tLog );
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}
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Future<bool> initializeRecovery( IDiskQueue::location recoverAt ) {
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return queue->initializeRecovery( recoverAt );
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}
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template <class T>
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void push( T const& qe, Reference<LogData> logData );
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void forgetBefore( Version upToVersion, Reference<LogData> logData );
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void pop( IDiskQueue::location upToLocation );
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Future<Void> commit() { return queue->commit(); }
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// Implements IClosable
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virtual Future<Void> getError() { return queue->getError(); }
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virtual Future<Void> onClosed() { return queue->onClosed(); }
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virtual void dispose() { queue->dispose(); delete this; }
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virtual void close() { queue->close(); delete this; }
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private:
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IDiskQueue* queue;
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UID dbgid;
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void updateVersionSizes( const TLogQueueEntry& result, TLogData* tLog, IDiskQueue::location start, IDiskQueue::location end );
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ACTOR static Future<TLogQueueEntry> readNext( TLogQueue* self, TLogData* tLog ) {
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state TLogQueueEntry result;
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state int zeroFillSize = 0;
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loop {
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state IDiskQueue::location startloc = self->queue->getNextReadLocation();
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Standalone<StringRef> h = wait( self->queue->readNext( sizeof(uint32_t) ) );
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if (h.size() != sizeof(uint32_t)) {
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if (h.size()) {
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TEST( true ); // Zero fill within size field
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int payloadSize = 0;
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memcpy(&payloadSize, h.begin(), h.size());
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zeroFillSize = sizeof(uint32_t)-h.size(); // zero fill the size itself
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zeroFillSize += payloadSize+1; // and then the contents and valid flag
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}
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break;
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}
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state uint32_t payloadSize = *(uint32_t*)h.begin();
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ASSERT( payloadSize < (100<<20) );
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Standalone<StringRef> e = wait( self->queue->readNext( payloadSize+1 ) );
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if (e.size() != payloadSize+1) {
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TEST( true ); // Zero fill within payload
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zeroFillSize = payloadSize+1 - e.size();
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break;
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}
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if (e[payloadSize]) {
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ASSERT( e[payloadSize] == 1 );
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Arena a = e.arena();
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ArenaReader ar( a, e.substr(0, payloadSize), IncludeVersion() );
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ar >> result;
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const IDiskQueue::location endloc = self->queue->getNextReadLocation();
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self->updateVersionSizes(result, tLog, startloc, endloc);
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return result;
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}
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}
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if (zeroFillSize) {
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TEST( true ); // Fixing a partial commit at the end of the tlog queue
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for(int i=0; i<zeroFillSize; i++)
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self->queue->push( StringRef((const uint8_t*)"",1) );
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}
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throw end_of_stream();
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}
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};
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////// Persistence format (for self->persistentData)
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// Immutable keys
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// persistFormat has been mostly invalidated by TLogVersion, and can probably be removed when
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// 4.6's TLog code is removed.
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static const KeyValueRef persistFormat( LiteralStringRef( "Format" ), LiteralStringRef("FoundationDB/LogServer/3/0") );
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static const KeyRangeRef persistFormatReadableRange( LiteralStringRef("FoundationDB/LogServer/3/0"), LiteralStringRef("FoundationDB/LogServer/4/0") );
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static const KeyRangeRef persistProtocolVersionKeys( LiteralStringRef( "ProtocolVersion/" ), LiteralStringRef( "ProtocolVersion0" ) );
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static const KeyRangeRef persistTLogSpillTypeKeys( LiteralStringRef( "TLogSpillType/" ), LiteralStringRef( "TLogSpillType0" ) );
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static const KeyRangeRef persistRecoveryCountKeys = KeyRangeRef( LiteralStringRef( "DbRecoveryCount/" ), LiteralStringRef( "DbRecoveryCount0" ) );
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// Updated on updatePersistentData()
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static const KeyRangeRef persistCurrentVersionKeys = KeyRangeRef( LiteralStringRef( "version/" ), LiteralStringRef( "version0" ) );
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static const KeyRangeRef persistKnownCommittedVersionKeys = KeyRangeRef( LiteralStringRef( "knownCommitted/" ), LiteralStringRef( "knownCommitted0" ) );
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static const KeyRef persistRecoveryLocationKey = KeyRef( LiteralStringRef( "recoveryLocation" ) );
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static const KeyRangeRef persistLocalityKeys = KeyRangeRef( LiteralStringRef( "Locality/" ), LiteralStringRef( "Locality0" ) );
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static const KeyRangeRef persistLogRouterTagsKeys = KeyRangeRef( LiteralStringRef( "LogRouterTags/" ), LiteralStringRef( "LogRouterTags0" ) );
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static const KeyRangeRef persistTxsTagsKeys = KeyRangeRef( LiteralStringRef( "TxsTags/" ), LiteralStringRef( "TxsTags0" ) );
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static const KeyRange persistTagMessagesKeys = prefixRange(LiteralStringRef("TagMsg/"));
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static const KeyRange persistTagMessageRefsKeys = prefixRange(LiteralStringRef("TagMsgRef/"));
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static const KeyRange persistTagPoppedKeys = prefixRange(LiteralStringRef("TagPop/"));
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static Key persistTagMessagesKey( UID id, Tag tag, Version version ) {
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BinaryWriter wr( Unversioned() );
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wr.serializeBytes(persistTagMessagesKeys.begin);
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wr << id;
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wr << tag;
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wr << bigEndian64( version );
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return wr.toValue();
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}
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static Key persistTagMessageRefsKey( UID id, Tag tag, Version version ) {
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BinaryWriter wr( Unversioned() );
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wr.serializeBytes(persistTagMessageRefsKeys.begin);
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wr << id;
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wr << tag;
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wr << bigEndian64( version );
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return wr.toValue();
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}
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static Key persistTagPoppedKey( UID id, Tag tag ) {
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BinaryWriter wr(Unversioned());
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wr.serializeBytes( persistTagPoppedKeys.begin );
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wr << id;
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wr << tag;
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return wr.toValue();
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}
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static Value persistTagPoppedValue( Version popped ) {
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return BinaryWriter::toValue( popped, Unversioned() );
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}
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static Tag decodeTagPoppedKey( KeyRef id, KeyRef key ) {
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Tag s;
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BinaryReader rd( key.removePrefix(persistTagPoppedKeys.begin).removePrefix(id), Unversioned() );
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rd >> s;
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return s;
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}
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static Version decodeTagPoppedValue( ValueRef value ) {
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return BinaryReader::fromStringRef<Version>( value, Unversioned() );
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}
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static StringRef stripTagMessagesKey( StringRef key ) {
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return key.substr( sizeof(UID) + sizeof(Tag) + persistTagMessagesKeys.begin.size() );
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}
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static Version decodeTagMessagesKey( StringRef key ) {
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return bigEndian64( BinaryReader::fromStringRef<Version>( stripTagMessagesKey(key), Unversioned() ) );
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}
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struct SpilledData {
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SpilledData() = default;
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SpilledData(Version version, IDiskQueue::location start, uint32_t length, uint32_t mutationBytes)
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: version(version), start(start), length(length), mutationBytes(mutationBytes) {
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}
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template <class Ar>
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void serialize(Ar& ar) {
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serializer(ar, version, start, length, mutationBytes);
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}
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Version version = 0;
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IDiskQueue::location start = 0;
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uint32_t length = 0;
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uint32_t mutationBytes = 0;
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};
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struct TLogData : NonCopyable {
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AsyncTrigger newLogData;
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// A process has only 1 SharedTLog, which holds data for multiple logs, so that it obeys its assigned memory limit.
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// A process has only 1 active log and multiple non-active log from old generations.
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// In the figure below, TLog [1-4] are logs from old generations.
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// Because SS may need to pull data from old generation log, we keep Tlog [1-4].
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//
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// We always pop the disk queue from the oldest TLog, spill from the oldest TLog that still has
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// data in memory, and commits to the disk queue come from the most recent TLog.
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//
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// SharedTLog
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// +--------+--------+--------+--------+--------+
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// | TLog 1 | TLog 2 | TLog 3 | TLog 4 | TLog 5 |
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// +--------+--------+--------+--------+--------+
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// ^ popOrder ^spillOrder ^committing
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//
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// ^popOrder is the location where SS reads the to-be-read data from tlog.
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// ^committing is the location where the active TLog accepts the pushed data.
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Deque<UID> popOrder;
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Deque<UID> spillOrder;
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std::map<UID, Reference<struct LogData>> id_data;
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UID dbgid;
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UID workerID;
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IKeyValueStore* persistentData; // Durable data on disk that were spilled.
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IDiskQueue* rawPersistentQueue; // The physical queue the persistentQueue below stores its data. Ideally, log interface should work without directly accessing rawPersistentQueue
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TLogQueue *persistentQueue; // Logical queue the log operates on and persist its data.
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int64_t diskQueueCommitBytes;
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AsyncVar<bool> largeDiskQueueCommitBytes; //becomes true when diskQueueCommitBytes is greater than MAX_QUEUE_COMMIT_BYTES
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Reference<AsyncVar<ServerDBInfo>> dbInfo;
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Database cx;
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NotifiedVersion queueCommitEnd;
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Version queueCommitBegin;
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int64_t instanceID;
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int64_t bytesInput;
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int64_t bytesDurable;
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int64_t targetVolatileBytes; // The number of bytes of mutations this TLog should hold in memory before spilling.
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int64_t overheadBytesInput;
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int64_t overheadBytesDurable;
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WorkerCache<TLogInterface> tlogCache;
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FlowLock peekMemoryLimiter;
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PromiseStream<Future<Void>> sharedActors;
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Promise<Void> terminated;
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FlowLock concurrentLogRouterReads;
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FlowLock persistentDataCommitLock;
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bool ignorePopRequest; // ignore pop request from storage servers
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double ignorePopDeadline; // time until which the ignorePopRequest will be
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// honored
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std::string ignorePopUid; // callers that set ignorePopRequest will set this
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// extra state, used to validate the ownership of
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// the set and for callers that unset will
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// be able to match it up
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std::string dataFolder; // folder where data is stored
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std::map<Tag, Version> toBePopped; // map of Tag->Version for all the pops
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// that came when ignorePopRequest was set
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Reference<AsyncVar<bool>> degraded;
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std::vector<TagsAndMessage> tempTagMessages;
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TLogData(UID dbgid, UID workerID, IKeyValueStore* persistentData, IDiskQueue * persistentQueue, Reference<AsyncVar<ServerDBInfo>> dbInfo, Reference<AsyncVar<bool>> degraded, std::string folder)
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: dbgid(dbgid), workerID(workerID), instanceID(deterministicRandom()->randomUniqueID().first()),
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persistentData(persistentData), rawPersistentQueue(persistentQueue), persistentQueue(new TLogQueue(persistentQueue, dbgid)),
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dbInfo(dbInfo), degraded(degraded), queueCommitBegin(0), queueCommitEnd(0),
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diskQueueCommitBytes(0), largeDiskQueueCommitBytes(false), bytesInput(0), bytesDurable(0), targetVolatileBytes(SERVER_KNOBS->TLOG_SPILL_THRESHOLD), overheadBytesInput(0), overheadBytesDurable(0),
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peekMemoryLimiter(SERVER_KNOBS->TLOG_SPILL_REFERENCE_MAX_PEEK_MEMORY_BYTES),
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concurrentLogRouterReads(SERVER_KNOBS->CONCURRENT_LOG_ROUTER_READS),
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ignorePopRequest(false), ignorePopDeadline(), ignorePopUid(), dataFolder(folder), toBePopped()
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{
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cx = openDBOnServer(dbInfo, TaskPriority::DefaultEndpoint, true, true);
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}
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};
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struct LogData : NonCopyable, public ReferenceCounted<LogData> {
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struct TagData : NonCopyable, public ReferenceCounted<TagData> {
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std::deque<std::pair<Version, LengthPrefixedStringRef>> versionMessages;
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bool nothingPersistent; // true means tag is *known* to have no messages in persistentData. false means nothing.
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bool poppedRecently; // `popped` has changed since last updatePersistentData
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Version popped; // see popped version tracking contract below
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Version persistentPopped; // The popped version recorded in the btree.
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Version versionForPoppedLocation; // `poppedLocation` was calculated at this popped version
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IDiskQueue::location poppedLocation; // The location of the earliest commit with data for this tag.
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bool unpoppedRecovered;
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Tag tag;
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TagData( Tag tag, Version popped, IDiskQueue::location poppedLocation, bool nothingPersistent, bool poppedRecently, bool unpoppedRecovered ) : tag(tag), nothingPersistent(nothingPersistent), poppedRecently(poppedRecently), popped(popped), persistentPopped(0), versionForPoppedLocation(0), poppedLocation(poppedLocation), unpoppedRecovered(unpoppedRecovered) {}
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TagData(TagData&& r) BOOST_NOEXCEPT : versionMessages(std::move(r.versionMessages)), nothingPersistent(r.nothingPersistent), poppedRecently(r.poppedRecently), popped(r.popped), persistentPopped(r.persistentPopped), versionForPoppedLocation(r.versionForPoppedLocation), poppedLocation(r.poppedLocation), tag(r.tag), unpoppedRecovered(r.unpoppedRecovered) {}
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void operator= (TagData&& r) BOOST_NOEXCEPT {
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versionMessages = std::move(r.versionMessages);
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nothingPersistent = r.nothingPersistent;
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poppedRecently = r.poppedRecently;
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popped = r.popped;
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persistentPopped = r.persistentPopped;
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versionForPoppedLocation = r.versionForPoppedLocation;
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poppedLocation = r.poppedLocation;
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tag = r.tag;
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unpoppedRecovered = r.unpoppedRecovered;
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}
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// Erase messages not needed to update *from* versions >= before (thus, messages with toversion <= before)
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ACTOR Future<Void> eraseMessagesBefore( TagData *self, Version before, TLogData *tlogData, Reference<LogData> logData, TaskPriority taskID ) {
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while(!self->versionMessages.empty() && self->versionMessages.front().first < before) {
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Version version = self->versionMessages.front().first;
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std::pair<int,int> &sizes = logData->version_sizes[version];
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int64_t messagesErased = 0;
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while(!self->versionMessages.empty() && self->versionMessages.front().first == version) {
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auto const& m = self->versionMessages.front();
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++messagesErased;
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if(self->tag.locality != tagLocalityTxs && self->tag != txsTag) {
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sizes.first -= m.second.expectedSize();
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} else {
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sizes.second -= m.second.expectedSize();
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}
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self->versionMessages.pop_front();
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}
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int64_t bytesErased = messagesErased * SERVER_KNOBS->VERSION_MESSAGES_ENTRY_BYTES_WITH_OVERHEAD;
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logData->bytesDurable += bytesErased;
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tlogData->bytesDurable += bytesErased;
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tlogData->overheadBytesDurable += bytesErased;
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wait(yield(taskID));
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}
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return Void();
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}
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Future<Void> eraseMessagesBefore(Version before, TLogData *tlogData, Reference<LogData> logData, TaskPriority taskID) {
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return eraseMessagesBefore(this, before, tlogData, logData, taskID);
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}
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};
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Map<Version, std::pair<IDiskQueue::location, IDiskQueue::location>> versionLocation; // For the version of each entry that was push()ed, the [start, end) location of the serialized bytes
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/*
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Popped version tracking contract needed by log system to implement ILogCursor::popped():
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- Log server tracks for each (possible) tag a popped_version
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Impl: TagData::popped (in memory) and persistTagPoppedKeys (in persistentData)
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- popped_version(tag) is <= the maximum version for which log server (or a predecessor) is ever asked to pop the tag
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Impl: Only increased by tLogPop() in response to either a pop request or recovery from a predecessor
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- popped_version(tag) is > the maximum version for which log server is unable to peek messages due to previous pops (on this server or a predecessor)
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Impl: Increased by tLogPop() atomically with erasing messages from memory; persisted by updatePersistentData() atomically with erasing messages from store; messages are not erased from queue where popped_version is not persisted
|
|
- LockTLogReply returns all tags which either have messages, or which have nonzero popped_versions
|
|
Impl: tag_data is present for all such tags
|
|
- peek(tag, v) returns the popped_version for tag if that is greater than v
|
|
Impl: Check tag_data->popped (after all waits)
|
|
*/
|
|
|
|
AsyncTrigger stopCommit;
|
|
bool stopped, initialized;
|
|
DBRecoveryCount recoveryCount;
|
|
|
|
VersionMetricHandle persistentDataVersion, persistentDataDurableVersion; // The last version number in the portion of the log (written|durable) to persistentData
|
|
NotifiedVersion version, queueCommittedVersion;
|
|
Version queueCommittingVersion;
|
|
Version knownCommittedVersion, durableKnownCommittedVersion, minKnownCommittedVersion;
|
|
Version queuePoppedVersion;
|
|
Version minPoppedTagVersion;
|
|
Tag minPoppedTag;
|
|
|
|
Deque<std::pair<Version, Standalone<VectorRef<uint8_t>>>> messageBlocks;
|
|
std::vector<std::vector<Reference<TagData>>> tag_data; //tag.locality | tag.id
|
|
int unpoppedRecoveredTags;
|
|
|
|
Reference<TagData> getTagData(Tag tag) {
|
|
int idx = tag.toTagDataIndex();
|
|
if(idx >= tag_data.size()) {
|
|
tag_data.resize(idx+1);
|
|
}
|
|
if(tag.id >= tag_data[idx].size()) {
|
|
tag_data[idx].resize(tag.id+1);
|
|
}
|
|
return tag_data[idx][tag.id];
|
|
}
|
|
|
|
//only callable after getTagData returns a null reference
|
|
Reference<TagData> createTagData(Tag tag, Version popped, bool nothingPersistent, bool poppedRecently, bool unpoppedRecovered) {
|
|
if(tag.locality != tagLocalityLogRouter && tag.locality != tagLocalityTxs && tag != txsTag && allTags.size() && !allTags.count(tag) && popped <= recoveredAt) {
|
|
popped = recoveredAt + 1;
|
|
}
|
|
Reference<TagData> newTagData = Reference<TagData>( new TagData(tag, popped, 0, nothingPersistent, poppedRecently, unpoppedRecovered) );
|
|
tag_data[tag.toTagDataIndex()][tag.id] = newTagData;
|
|
return newTagData;
|
|
}
|
|
|
|
Map<Version, std::pair<int,int>> version_sizes;
|
|
|
|
CounterCollection cc;
|
|
Counter bytesInput;
|
|
Counter bytesDurable;
|
|
|
|
UID logId;
|
|
ProtocolVersion protocolVersion;
|
|
Version newPersistentDataVersion;
|
|
Future<Void> removed;
|
|
PromiseStream<Future<Void>> addActor;
|
|
TLogData* tLogData;
|
|
Promise<Void> recoveryComplete, committingQueue;
|
|
Version unrecoveredBefore, recoveredAt;
|
|
|
|
struct PeekTrackerData {
|
|
std::map<int, Promise<std::pair<Version, bool>>> sequence_version;
|
|
double lastUpdate;
|
|
};
|
|
|
|
std::map<UID, PeekTrackerData> peekTracker;
|
|
|
|
Reference<AsyncVar<Reference<ILogSystem>>> logSystem;
|
|
Tag remoteTag;
|
|
bool isPrimary;
|
|
int logRouterTags;
|
|
Version logRouterPoppedVersion, logRouterPopToVersion;
|
|
int8_t locality;
|
|
UID recruitmentID;
|
|
TLogSpillType logSpillType;
|
|
std::set<Tag> allTags;
|
|
Future<Void> terminated;
|
|
FlowLock execOpLock;
|
|
bool execOpCommitInProgress;
|
|
int txsTags;
|
|
|
|
explicit LogData(TLogData* tLogData, TLogInterface interf, Tag remoteTag, bool isPrimary, int logRouterTags, int txsTags, UID recruitmentID, ProtocolVersion protocolVersion, TLogSpillType logSpillType, std::vector<Tag> tags, std::string context)
|
|
: tLogData(tLogData), knownCommittedVersion(0), logId(interf.id()),
|
|
cc("TLog", interf.id().toString()), bytesInput("BytesInput", cc), bytesDurable("BytesDurable", cc), remoteTag(remoteTag), isPrimary(isPrimary), logRouterTags(logRouterTags), txsTags(txsTags), recruitmentID(recruitmentID), protocolVersion(protocolVersion), logSpillType(logSpillType),
|
|
logSystem(new AsyncVar<Reference<ILogSystem>>()), logRouterPoppedVersion(0), durableKnownCommittedVersion(0), minKnownCommittedVersion(0), queuePoppedVersion(0), allTags(tags.begin(), tags.end()), terminated(tLogData->terminated.getFuture()),
|
|
minPoppedTagVersion(0), minPoppedTag(invalidTag),
|
|
// These are initialized differently on init() or recovery
|
|
recoveryCount(), stopped(false), initialized(false), queueCommittingVersion(0), newPersistentDataVersion(invalidVersion), unrecoveredBefore(1), recoveredAt(1), unpoppedRecoveredTags(0),
|
|
logRouterPopToVersion(0), locality(tagLocalityInvalid), execOpCommitInProgress(false)
|
|
{
|
|
startRole(Role::TRANSACTION_LOG, interf.id(), tLogData->workerID, {{"SharedTLog", tLogData->dbgid.shortString()}}, context);
|
|
|
|
persistentDataVersion.init(LiteralStringRef("TLog.PersistentDataVersion"), cc.id);
|
|
persistentDataDurableVersion.init(LiteralStringRef("TLog.PersistentDataDurableVersion"), cc.id);
|
|
version.initMetric(LiteralStringRef("TLog.Version"), cc.id);
|
|
queueCommittedVersion.initMetric(LiteralStringRef("TLog.QueueCommittedVersion"), cc.id);
|
|
|
|
specialCounter(cc, "Version", [this](){ return this->version.get(); });
|
|
specialCounter(cc, "QueueCommittedVersion", [this](){ return this->queueCommittedVersion.get(); });
|
|
specialCounter(cc, "PersistentDataVersion", [this](){ return this->persistentDataVersion; });
|
|
specialCounter(cc, "PersistentDataDurableVersion", [this](){ return this->persistentDataDurableVersion; });
|
|
specialCounter(cc, "KnownCommittedVersion", [this](){ return this->knownCommittedVersion; });
|
|
specialCounter(cc, "QueuePoppedVersion", [this](){ return this->queuePoppedVersion; });
|
|
specialCounter(cc, "MinPoppedTagVersion", [this](){ return this->minPoppedTagVersion; });
|
|
specialCounter(cc, "MinPoppedTagLocality", [this](){ return this->minPoppedTag.locality; });
|
|
specialCounter(cc, "MinPoppedTagId", [this](){ return this->minPoppedTag.id; });
|
|
specialCounter(cc, "SharedBytesInput", [tLogData](){ return tLogData->bytesInput; });
|
|
specialCounter(cc, "SharedBytesDurable", [tLogData](){ return tLogData->bytesDurable; });
|
|
specialCounter(cc, "SharedOverheadBytesInput", [tLogData](){ return tLogData->overheadBytesInput; });
|
|
specialCounter(cc, "SharedOverheadBytesDurable", [tLogData](){ return tLogData->overheadBytesDurable; });
|
|
specialCounter(cc, "KvstoreBytesUsed", [tLogData](){ return tLogData->persistentData->getStorageBytes().used; });
|
|
specialCounter(cc, "KvstoreBytesFree", [tLogData](){ return tLogData->persistentData->getStorageBytes().free; });
|
|
specialCounter(cc, "KvstoreBytesAvailable", [tLogData](){ return tLogData->persistentData->getStorageBytes().available; });
|
|
specialCounter(cc, "KvstoreBytesTotal", [tLogData](){ return tLogData->persistentData->getStorageBytes().total; });
|
|
specialCounter(cc, "QueueDiskBytesUsed", [tLogData](){ return tLogData->rawPersistentQueue->getStorageBytes().used; });
|
|
specialCounter(cc, "QueueDiskBytesFree", [tLogData](){ return tLogData->rawPersistentQueue->getStorageBytes().free; });
|
|
specialCounter(cc, "QueueDiskBytesAvailable", [tLogData](){ return tLogData->rawPersistentQueue->getStorageBytes().available; });
|
|
specialCounter(cc, "QueueDiskBytesTotal", [tLogData](){ return tLogData->rawPersistentQueue->getStorageBytes().total; });
|
|
specialCounter(cc, "PeekMemoryReserved", [tLogData]() { return tLogData->peekMemoryLimiter.activePermits(); });
|
|
specialCounter(cc, "PeekMemoryRequestsStalled", [tLogData]() { return tLogData->peekMemoryLimiter.waiters(); });
|
|
}
|
|
|
|
~LogData() {
|
|
endRole(Role::TRANSACTION_LOG, logId, "Error", true);
|
|
|
|
if(!terminated.isReady()) {
|
|
tLogData->bytesDurable += bytesInput.getValue() - bytesDurable.getValue();
|
|
TraceEvent("TLogBytesWhenRemoved", logId).detail("SharedBytesInput", tLogData->bytesInput).detail("SharedBytesDurable", tLogData->bytesDurable).detail("LocalBytesInput", bytesInput.getValue()).detail("LocalBytesDurable", bytesDurable.getValue());
|
|
|
|
ASSERT_ABORT(tLogData->bytesDurable <= tLogData->bytesInput);
|
|
|
|
Key logIdKey = BinaryWriter::toValue(logId,Unversioned());
|
|
tLogData->persistentData->clear( singleKeyRange(logIdKey.withPrefix(persistCurrentVersionKeys.begin)) );
|
|
tLogData->persistentData->clear( singleKeyRange(logIdKey.withPrefix(persistKnownCommittedVersionKeys.begin)) );
|
|
tLogData->persistentData->clear( singleKeyRange(logIdKey.withPrefix(persistLocalityKeys.begin)) );
|
|
tLogData->persistentData->clear( singleKeyRange(logIdKey.withPrefix(persistLogRouterTagsKeys.begin)) );
|
|
tLogData->persistentData->clear( singleKeyRange(logIdKey.withPrefix(persistTxsTagsKeys.begin)) );
|
|
tLogData->persistentData->clear( singleKeyRange(logIdKey.withPrefix(persistRecoveryCountKeys.begin)) );
|
|
tLogData->persistentData->clear( singleKeyRange(logIdKey.withPrefix(persistProtocolVersionKeys.begin)) );
|
|
tLogData->persistentData->clear( singleKeyRange(logIdKey.withPrefix(persistTLogSpillTypeKeys.begin)) );
|
|
tLogData->persistentData->clear( singleKeyRange(logIdKey.withPrefix(persistRecoveryLocationKey)) );
|
|
Key msgKey = logIdKey.withPrefix(persistTagMessagesKeys.begin);
|
|
tLogData->persistentData->clear( KeyRangeRef( msgKey, strinc(msgKey) ) );
|
|
Key msgRefKey = logIdKey.withPrefix(persistTagMessageRefsKeys.begin);
|
|
tLogData->persistentData->clear( KeyRangeRef( msgRefKey, strinc(msgRefKey) ) );
|
|
Key poppedKey = logIdKey.withPrefix(persistTagPoppedKeys.begin);
|
|
tLogData->persistentData->clear( KeyRangeRef( poppedKey, strinc(poppedKey) ) );
|
|
}
|
|
|
|
for ( auto it = peekTracker.begin(); it != peekTracker.end(); ++it ) {
|
|
for(auto seq : it->second.sequence_version) {
|
|
if(!seq.second.isSet()) {
|
|
seq.second.sendError(timed_out());
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
LogEpoch epoch() const { return recoveryCount; }
|
|
|
|
bool shouldSpillByValue( Tag t ) const {
|
|
switch (logSpillType) {
|
|
case TLogSpillType::VALUE:
|
|
return true;
|
|
case TLogSpillType::REFERENCE:
|
|
return t.locality == tagLocalityTxs || t == txsTag;
|
|
default:
|
|
ASSERT(false);
|
|
return false;
|
|
}
|
|
}
|
|
|
|
bool shouldSpillByReference( Tag t ) const {
|
|
return !shouldSpillByValue( t );
|
|
}
|
|
};
|
|
|
|
template <class T>
|
|
void TLogQueue::push( T const& qe, Reference<LogData> logData ) {
|
|
BinaryWriter wr( Unversioned() ); // outer framing is not versioned
|
|
wr << uint32_t(0);
|
|
IncludeVersion().write(wr); // payload is versioned
|
|
wr << qe;
|
|
wr << uint8_t(1);
|
|
*(uint32_t*)wr.getData() = wr.getLength() - sizeof(uint32_t) - sizeof(uint8_t);
|
|
const IDiskQueue::location startloc = queue->getNextPushLocation();
|
|
// FIXME: push shouldn't return anything. We should call getNextPushLocation() again.
|
|
const IDiskQueue::location endloc = queue->push( wr.toValue() );
|
|
//TraceEvent("TLogQueueVersionWritten", dbgid).detail("Size", wr.getLength() - sizeof(uint32_t) - sizeof(uint8_t)).detail("Loc", loc);
|
|
logData->versionLocation[qe.version] = std::make_pair(startloc, endloc);
|
|
}
|
|
|
|
void TLogQueue::forgetBefore( Version upToVersion, Reference<LogData> logData ) {
|
|
// Keep only the given and all subsequent version numbers
|
|
// Find the first version >= upTo
|
|
auto v = logData->versionLocation.lower_bound(upToVersion);
|
|
if (v == logData->versionLocation.begin()) return;
|
|
|
|
if(v == logData->versionLocation.end()) {
|
|
v = logData->versionLocation.lastItem();
|
|
}
|
|
else {
|
|
v.decrementNonEnd();
|
|
}
|
|
|
|
logData->versionLocation.erase( logData->versionLocation.begin(), v ); // ... and then we erase that previous version and all prior versions
|
|
}
|
|
|
|
void TLogQueue::pop( IDiskQueue::location upToLocation ) {
|
|
queue->pop( upToLocation );
|
|
}
|
|
|
|
void TLogQueue::updateVersionSizes( const TLogQueueEntry& result, TLogData* tLog,
|
|
IDiskQueue::location start, IDiskQueue::location end) {
|
|
auto it = tLog->id_data.find(result.id);
|
|
if(it != tLog->id_data.end()) {
|
|
it->second->versionLocation[result.version] = std::make_pair(start, end);
|
|
}
|
|
}
|
|
|
|
ACTOR Future<Void> tLogLock( TLogData* self, ReplyPromise< TLogLockResult > reply, Reference<LogData> logData ) {
|
|
state Version stopVersion = logData->version.get();
|
|
|
|
TEST(true); // TLog stopped by recovering master
|
|
TEST( logData->stopped );
|
|
TEST( !logData->stopped );
|
|
|
|
TraceEvent("TLogStop", logData->logId).detail("Ver", stopVersion).detail("IsStopped", logData->stopped).detail("QueueCommitted", logData->queueCommittedVersion.get());
|
|
|
|
logData->stopped = true;
|
|
if(!logData->recoveryComplete.isSet()) {
|
|
logData->recoveryComplete.sendError(end_of_stream());
|
|
}
|
|
|
|
// Lock once the current version has been committed
|
|
wait( logData->queueCommittedVersion.whenAtLeast( stopVersion ) );
|
|
|
|
ASSERT(stopVersion == logData->version.get());
|
|
|
|
TLogLockResult result;
|
|
result.end = stopVersion;
|
|
result.knownCommittedVersion = logData->knownCommittedVersion;
|
|
|
|
TraceEvent("TLogStop2", self->dbgid).detail("LogId", logData->logId).detail("Ver", stopVersion).detail("IsStopped", logData->stopped).detail("QueueCommitted", logData->queueCommittedVersion.get()).detail("KnownCommitted", result.knownCommittedVersion);
|
|
|
|
reply.send( result );
|
|
return Void();
|
|
}
|
|
|
|
void updatePersistentPopped( TLogData* self, Reference<LogData> logData, Reference<LogData::TagData> data ) {
|
|
if (!data->poppedRecently) return;
|
|
self->persistentData->set(KeyValueRef( persistTagPoppedKey(logData->logId, data->tag), persistTagPoppedValue(data->popped) ));
|
|
data->poppedRecently = false;
|
|
data->persistentPopped = data->popped;
|
|
|
|
if (data->nothingPersistent) return;
|
|
|
|
if (logData->shouldSpillByValue(data->tag)) {
|
|
self->persistentData->clear( KeyRangeRef(
|
|
persistTagMessagesKey( logData->logId, data->tag, Version(0) ),
|
|
persistTagMessagesKey( logData->logId, data->tag, data->popped ) ) );
|
|
} else {
|
|
self->persistentData->clear( KeyRangeRef(
|
|
persistTagMessageRefsKey( logData->logId, data->tag, Version(0) ),
|
|
persistTagMessageRefsKey( logData->logId, data->tag, data->popped ) ) );
|
|
}
|
|
|
|
if (data->popped > logData->persistentDataVersion) {
|
|
data->nothingPersistent = true;
|
|
}
|
|
}
|
|
|
|
ACTOR Future<Void> updatePoppedLocation( TLogData* self, Reference<LogData> logData, Reference<LogData::TagData> data ) {
|
|
// For anything spilled by value, we do not need to track its popped location.
|
|
if (logData->shouldSpillByValue(data->tag)) {
|
|
return Void();
|
|
}
|
|
|
|
if (data->versionForPoppedLocation >= data->persistentPopped) return Void();
|
|
data->versionForPoppedLocation = data->persistentPopped;
|
|
|
|
// Use persistentPopped and not popped, so that a pop update received after spilling doesn't cause
|
|
// us to remove data that still is pointed to by SpilledData in the btree.
|
|
if (data->persistentPopped <= logData->persistentDataVersion) {
|
|
// Recover the next needed location in the Disk Queue from the index.
|
|
Standalone<RangeResultRef> kvrefs = wait(
|
|
self->persistentData->readRange(KeyRangeRef(
|
|
persistTagMessageRefsKey(logData->logId, data->tag, data->persistentPopped),
|
|
persistTagMessageRefsKey(logData->logId, data->tag, logData->persistentDataVersion + 1)), 1));
|
|
|
|
if (kvrefs.empty()) {
|
|
// Nothing was persistent after all.
|
|
data->nothingPersistent = true;
|
|
} else {
|
|
VectorRef<SpilledData> spilledData;
|
|
BinaryReader r(kvrefs[0].value, AssumeVersion(logData->protocolVersion));
|
|
r >> spilledData;
|
|
|
|
for (const SpilledData& sd : spilledData) {
|
|
if (sd.version >= data->persistentPopped) {
|
|
data->poppedLocation = sd.start;
|
|
data->versionForPoppedLocation = sd.version;
|
|
break;
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
if (data->persistentPopped >= logData->persistentDataVersion || data->nothingPersistent) {
|
|
// Then the location must be in memory.
|
|
auto locationIter = logData->versionLocation.lower_bound(data->persistentPopped);
|
|
if (locationIter != logData->versionLocation.end()) {
|
|
data->poppedLocation = locationIter->value.first;
|
|
data->versionForPoppedLocation = locationIter->key;
|
|
} else {
|
|
// No data on disk and no data in RAM.
|
|
// This TLog instance will be removed soon anyway, so we temporarily freeze our poppedLocation
|
|
// to avoid trying to track what the ending location of this TLog instance was.
|
|
}
|
|
}
|
|
|
|
return Void();
|
|
}
|
|
|
|
ACTOR Future<Void> popDiskQueue( TLogData* self, Reference<LogData> logData ) {
|
|
if (!logData->initialized) return Void();
|
|
|
|
std::vector<Future<Void>> updates;
|
|
for(int tagLocality = 0; tagLocality < logData->tag_data.size(); tagLocality++) {
|
|
for(int tagId = 0; tagId < logData->tag_data[tagLocality].size(); tagId++) {
|
|
Reference<LogData::TagData> tagData = logData->tag_data[tagLocality][tagId];
|
|
if (tagData) {
|
|
updates.push_back( updatePoppedLocation( self, logData, tagData ) );
|
|
}
|
|
}
|
|
}
|
|
wait(waitForAll(updates));
|
|
|
|
IDiskQueue::location minLocation = 0;
|
|
Version minVersion = 0;
|
|
auto locationIter = logData->versionLocation.lower_bound(logData->persistentDataVersion);
|
|
if (locationIter != logData->versionLocation.end()) {
|
|
minLocation = locationIter->value.first;
|
|
minVersion = locationIter->key;
|
|
}
|
|
logData->minPoppedTagVersion = std::numeric_limits<Version>::max();
|
|
|
|
for(int tagLocality = 0; tagLocality < logData->tag_data.size(); tagLocality++) {
|
|
for(int tagId = 0; tagId < logData->tag_data[tagLocality].size(); tagId++) {
|
|
Reference<LogData::TagData> tagData = logData->tag_data[tagLocality][tagId];
|
|
if (tagData && logData->shouldSpillByReference(tagData->tag)) {
|
|
if(!tagData->nothingPersistent) {
|
|
minLocation = std::min(minLocation, tagData->poppedLocation);
|
|
minVersion = std::min(minVersion, tagData->popped);
|
|
}
|
|
if((!tagData->nothingPersistent || tagData->versionMessages.size()) && tagData->popped < logData->minPoppedTagVersion) {
|
|
logData->minPoppedTagVersion = tagData->popped;
|
|
logData->minPoppedTag = tagData->tag;
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
if( self->queueCommitEnd.get() > 0 ) {
|
|
Version lastCommittedVersion = logData->queueCommittedVersion.get();
|
|
IDiskQueue::location lastCommittedLocation = minLocation;
|
|
auto locationIter = logData->versionLocation.lower_bound(lastCommittedVersion);
|
|
if (locationIter != logData->versionLocation.end()) {
|
|
lastCommittedLocation = locationIter->value.first;
|
|
}
|
|
self->persistentQueue->pop( std::min(minLocation, lastCommittedLocation) );
|
|
logData->queuePoppedVersion = std::max(logData->queuePoppedVersion, minVersion);
|
|
}
|
|
|
|
return Void();
|
|
}
|
|
|
|
ACTOR Future<Void> updatePersistentData( TLogData* self, Reference<LogData> logData, Version newPersistentDataVersion ) {
|
|
state BinaryWriter wr( Unversioned() );
|
|
// PERSIST: Changes self->persistentDataVersion and writes and commits the relevant changes
|
|
ASSERT( newPersistentDataVersion <= logData->version.get() );
|
|
ASSERT( newPersistentDataVersion <= logData->queueCommittedVersion.get() );
|
|
ASSERT( newPersistentDataVersion > logData->persistentDataVersion );
|
|
ASSERT( logData->persistentDataVersion == logData->persistentDataDurableVersion );
|
|
logData->newPersistentDataVersion = newPersistentDataVersion;
|
|
|
|
//TraceEvent("UpdatePersistentData", self->dbgid).detail("Seq", newPersistentDataSeq);
|
|
|
|
state bool anyData = false;
|
|
|
|
// For all existing tags
|
|
state int tagLocality = 0;
|
|
state int tagId = 0;
|
|
|
|
for(tagLocality = 0; tagLocality < logData->tag_data.size(); tagLocality++) {
|
|
for(tagId = 0; tagId < logData->tag_data[tagLocality].size(); tagId++) {
|
|
state Reference<LogData::TagData> tagData = logData->tag_data[tagLocality][tagId];
|
|
if(tagData) {
|
|
wait(tagData->eraseMessagesBefore( tagData->popped, self, logData, TaskPriority::UpdateStorage ));
|
|
state Version currentVersion = 0;
|
|
// Clear recently popped versions from persistentData if necessary
|
|
updatePersistentPopped( self, logData, tagData );
|
|
state Version lastVersion = std::numeric_limits<Version>::min();
|
|
state IDiskQueue::location firstLocation = std::numeric_limits<IDiskQueue::location>::max();
|
|
// Transfer unpopped messages with version numbers less than newPersistentDataVersion to persistentData
|
|
state std::deque<std::pair<Version, LengthPrefixedStringRef>>::iterator msg = tagData->versionMessages.begin();
|
|
state int refSpilledTagCount = 0;
|
|
wr = BinaryWriter( AssumeVersion(logData->protocolVersion) );
|
|
// We prefix our spilled locations with a count, so that we can read this back out as a VectorRef.
|
|
wr << uint32_t(0);
|
|
while(msg != tagData->versionMessages.end() && msg->first <= newPersistentDataVersion) {
|
|
currentVersion = msg->first;
|
|
anyData = true;
|
|
tagData->nothingPersistent = false;
|
|
|
|
if (logData->shouldSpillByValue(tagData->tag)) {
|
|
wr = BinaryWriter( Unversioned() );
|
|
for(; msg != tagData->versionMessages.end() && msg->first == currentVersion; ++msg) {
|
|
wr << msg->second.toStringRef();
|
|
}
|
|
self->persistentData->set( KeyValueRef( persistTagMessagesKey( logData->logId, tagData->tag, currentVersion ), wr.toValue() ) );
|
|
} else {
|
|
// spill everything else by reference
|
|
const IDiskQueue::location begin = logData->versionLocation[currentVersion].first;
|
|
const IDiskQueue::location end = logData->versionLocation[currentVersion].second;
|
|
ASSERT(end > begin && end.lo - begin.lo < std::numeric_limits<uint32_t>::max());
|
|
uint32_t length = static_cast<uint32_t>(end.lo - begin.lo);
|
|
refSpilledTagCount++;
|
|
|
|
uint32_t size = 0;
|
|
for(; msg != tagData->versionMessages.end() && msg->first == currentVersion; ++msg) {
|
|
// Fast forward until we find a new version.
|
|
size += msg->second.expectedSize();
|
|
}
|
|
|
|
SpilledData spilledData( currentVersion, begin, length, size );
|
|
wr << spilledData;
|
|
|
|
lastVersion = std::max(currentVersion, lastVersion);
|
|
firstLocation = std::min(begin, firstLocation);
|
|
|
|
if ((wr.getLength() + sizeof(SpilledData) > SERVER_KNOBS->TLOG_SPILL_REFERENCE_MAX_BYTES_PER_BATCH) ) {
|
|
*(uint32_t*)wr.getData() = refSpilledTagCount;
|
|
self->persistentData->set( KeyValueRef( persistTagMessageRefsKey( logData->logId, tagData->tag, lastVersion ), wr.toValue() ) );
|
|
tagData->poppedLocation = std::min(tagData->poppedLocation, firstLocation);
|
|
refSpilledTagCount = 0;
|
|
wr = BinaryWriter( AssumeVersion(logData->protocolVersion) );
|
|
wr << uint32_t(0);
|
|
}
|
|
|
|
Future<Void> f = yield(TaskPriority::UpdateStorage);
|
|
if(!f.isReady()) {
|
|
wait(f);
|
|
msg = std::upper_bound(tagData->versionMessages.begin(), tagData->versionMessages.end(), std::make_pair(currentVersion, LengthPrefixedStringRef()), CompareFirst<std::pair<Version, LengthPrefixedStringRef>>());
|
|
}
|
|
}
|
|
}
|
|
if (refSpilledTagCount > 0) {
|
|
*(uint32_t*)wr.getData() = refSpilledTagCount;
|
|
self->persistentData->set( KeyValueRef( persistTagMessageRefsKey( logData->logId, tagData->tag, lastVersion ), wr.toValue() ) );
|
|
tagData->poppedLocation = std::min(tagData->poppedLocation, firstLocation);
|
|
}
|
|
|
|
wait(yield(TaskPriority::UpdateStorage));
|
|
}
|
|
}
|
|
}
|
|
|
|
auto locationIter = logData->versionLocation.lower_bound(newPersistentDataVersion);
|
|
if (locationIter != logData->versionLocation.end()) {
|
|
self->persistentData->set( KeyValueRef( persistRecoveryLocationKey, BinaryWriter::toValue(locationIter->value.first,Unversioned()) ) );
|
|
}
|
|
|
|
self->persistentData->set( KeyValueRef( BinaryWriter::toValue(logData->logId,Unversioned()).withPrefix(persistCurrentVersionKeys.begin), BinaryWriter::toValue(newPersistentDataVersion, Unversioned()) ) );
|
|
self->persistentData->set( KeyValueRef( BinaryWriter::toValue(logData->logId,Unversioned()).withPrefix(persistKnownCommittedVersionKeys.begin), BinaryWriter::toValue(logData->knownCommittedVersion, Unversioned()) ) );
|
|
logData->persistentDataVersion = newPersistentDataVersion;
|
|
|
|
wait( self->persistentData->commit() ); // SOMEDAY: This seems to be running pretty often, should we slow it down???
|
|
wait( delay(0, TaskPriority::UpdateStorage) );
|
|
|
|
// Now that the changes we made to persistentData are durable, erase the data we moved from memory and the queue, increase bytesDurable accordingly, and update persistentDataDurableVersion.
|
|
|
|
TEST(anyData); // TLog moved data to persistentData
|
|
logData->persistentDataDurableVersion = newPersistentDataVersion;
|
|
|
|
for(tagLocality = 0; tagLocality < logData->tag_data.size(); tagLocality++) {
|
|
for(tagId = 0; tagId < logData->tag_data[tagLocality].size(); tagId++) {
|
|
if(logData->tag_data[tagLocality][tagId]) {
|
|
wait(logData->tag_data[tagLocality][tagId]->eraseMessagesBefore( newPersistentDataVersion+1, self, logData, TaskPriority::UpdateStorage ));
|
|
wait(yield(TaskPriority::UpdateStorage));
|
|
}
|
|
}
|
|
}
|
|
|
|
logData->version_sizes.erase(logData->version_sizes.begin(), logData->version_sizes.lower_bound(logData->persistentDataDurableVersion));
|
|
|
|
wait(yield(TaskPriority::UpdateStorage));
|
|
|
|
while(!logData->messageBlocks.empty() && logData->messageBlocks.front().first <= newPersistentDataVersion) {
|
|
int64_t bytesErased = int64_t(logData->messageBlocks.front().second.size()) * SERVER_KNOBS->TLOG_MESSAGE_BLOCK_OVERHEAD_FACTOR;
|
|
logData->bytesDurable += bytesErased;
|
|
self->bytesDurable += bytesErased;
|
|
logData->messageBlocks.pop_front();
|
|
wait(yield(TaskPriority::UpdateStorage));
|
|
}
|
|
|
|
if(logData->bytesDurable.getValue() > logData->bytesInput.getValue() || self->bytesDurable > self->bytesInput) {
|
|
TraceEvent(SevError, "BytesDurableTooLarge", logData->logId).detail("SharedBytesInput", self->bytesInput).detail("SharedBytesDurable", self->bytesDurable).detail("LocalBytesInput", logData->bytesInput.getValue()).detail("LocalBytesDurable", logData->bytesDurable.getValue());
|
|
}
|
|
|
|
ASSERT(logData->bytesDurable.getValue() <= logData->bytesInput.getValue());
|
|
ASSERT(self->bytesDurable <= self->bytesInput);
|
|
|
|
if( self->queueCommitEnd.get() > 0 ) {
|
|
// FIXME: Maintain a heap of tags ordered by version to make this O(1) instead of O(n).
|
|
Version minVersion = std::numeric_limits<Version>::max();
|
|
for(tagLocality = 0; tagLocality < logData->tag_data.size(); tagLocality++) {
|
|
for(tagId = 0; tagId < logData->tag_data[tagLocality].size(); tagId++) {
|
|
Reference<LogData::TagData> tagData = logData->tag_data[tagLocality][tagId];
|
|
if (tagData) {
|
|
if (logData->shouldSpillByValue(tagData->tag)) {
|
|
minVersion = std::min(minVersion, newPersistentDataVersion);
|
|
} else {
|
|
minVersion = std::min(minVersion, tagData->popped);
|
|
}
|
|
}
|
|
}
|
|
}
|
|
if (minVersion != std::numeric_limits<Version>::max()) {
|
|
self->persistentQueue->forgetBefore( newPersistentDataVersion, logData ); // SOMEDAY: this can cause a slow task (~0.5ms), presumably from erasing too many versions. Should we limit the number of versions cleared at a time?
|
|
}
|
|
}
|
|
logData->newPersistentDataVersion = invalidVersion;
|
|
|
|
return Void();
|
|
}
|
|
|
|
ACTOR Future<Void> tLogPopCore( TLogData* self, Tag inputTag, Version to, Reference<LogData> logData ) {
|
|
if (self->ignorePopRequest) {
|
|
TraceEvent(SevDebug, "IgnoringPopRequest").detail("IgnorePopDeadline", self->ignorePopDeadline);
|
|
|
|
if (self->toBePopped.find(inputTag) == self->toBePopped.end()
|
|
|| to > self->toBePopped[inputTag]) {
|
|
self->toBePopped[inputTag] = to;
|
|
}
|
|
// add the pop to the toBePopped map
|
|
TraceEvent(SevDebug, "IgnoringPopRequest")
|
|
.detail("IgnorePopDeadline", self->ignorePopDeadline)
|
|
.detail("Tag", inputTag.toString())
|
|
.detail("Version", to);
|
|
return Void();
|
|
}
|
|
state Version upTo = to;
|
|
int8_t tagLocality = inputTag.locality;
|
|
if (isPseudoLocality(tagLocality)) {
|
|
if (logData->logSystem->get().isValid()) {
|
|
upTo = logData->logSystem->get()->popPseudoLocalityTag(inputTag, to);
|
|
tagLocality = tagLocalityLogRouter;
|
|
} else {
|
|
TraceEvent(SevWarn, "TLogPopNoLogSystem", self->dbgid).detail("Locality", tagLocality).detail("Version", upTo);
|
|
return Void();
|
|
}
|
|
}
|
|
state Tag tag(tagLocality, inputTag.id);
|
|
auto tagData = logData->getTagData(tag);
|
|
if (!tagData) {
|
|
tagData = logData->createTagData(tag, upTo, true, true, false);
|
|
} else if (upTo > tagData->popped) {
|
|
tagData->popped = upTo;
|
|
tagData->poppedRecently = true;
|
|
|
|
if(tagData->unpoppedRecovered && upTo > logData->recoveredAt) {
|
|
tagData->unpoppedRecovered = false;
|
|
logData->unpoppedRecoveredTags--;
|
|
TraceEvent("TLogPoppedTag", logData->logId).detail("Tags", logData->unpoppedRecoveredTags).detail("Tag", tag.toString()).detail("DurableKCVer", logData->durableKnownCommittedVersion).detail("RecoveredAt", logData->recoveredAt);
|
|
if(logData->unpoppedRecoveredTags == 0 && logData->durableKnownCommittedVersion >= logData->recoveredAt && logData->recoveryComplete.canBeSet()) {
|
|
logData->recoveryComplete.send(Void());
|
|
}
|
|
}
|
|
|
|
if (upTo > logData->persistentDataDurableVersion)
|
|
wait(tagData->eraseMessagesBefore(upTo, self, logData, TaskPriority::TLogPop));
|
|
//TraceEvent("TLogPop", logData->logId).detail("Tag", tag.toString()).detail("To", upTo);
|
|
}
|
|
return Void();
|
|
}
|
|
|
|
ACTOR Future<Void> tLogPop( TLogData* self, TLogPopRequest req, Reference<LogData> logData ) {
|
|
// timeout check for ignorePopRequest
|
|
if (self->ignorePopRequest && (g_network->now() > self->ignorePopDeadline)) {
|
|
|
|
TraceEvent("EnableTLogPlayAllIgnoredPops");
|
|
// use toBePopped and issue all the pops
|
|
std::map<Tag, Version>::iterator it;
|
|
vector<Future<Void>> ignoredPops;
|
|
self->ignorePopRequest = false;
|
|
self->ignorePopUid = "";
|
|
self->ignorePopDeadline = 0.0;
|
|
for (it = self->toBePopped.begin(); it != self->toBePopped.end(); it++) {
|
|
TraceEvent("PlayIgnoredPop")
|
|
.detail("Tag", it->first.toString())
|
|
.detail("Version", it->second);
|
|
ignoredPops.push_back(tLogPopCore(self, it->first, it->second, logData));
|
|
}
|
|
self->toBePopped.clear();
|
|
wait(waitForAll(ignoredPops));
|
|
TraceEvent("ResetIgnorePopRequest")
|
|
.detail("Now", g_network->now())
|
|
.detail("IgnorePopRequest", self->ignorePopRequest)
|
|
.detail("IgnorePopDeadline", self->ignorePopDeadline);
|
|
}
|
|
wait(tLogPopCore(self, req.tag, req.to, logData));
|
|
req.reply.send(Void());
|
|
return Void();
|
|
}
|
|
|
|
// This function (and updatePersistentData, which is called by this function) run at a low priority and can soak up all CPU resources.
|
|
// For this reason, they employ aggressive use of yields to avoid causing slow tasks that could introduce latencies for more important
|
|
// work (e.g. commits).
|
|
ACTOR Future<Void> updateStorage( TLogData* self ) {
|
|
while(self->spillOrder.size() && !self->id_data.count(self->spillOrder.front())) {
|
|
self->spillOrder.pop_front();
|
|
}
|
|
|
|
if(!self->spillOrder.size()) {
|
|
wait( delay(BUGGIFY ? SERVER_KNOBS->BUGGIFY_TLOG_STORAGE_MIN_UPDATE_INTERVAL : SERVER_KNOBS->TLOG_STORAGE_MIN_UPDATE_INTERVAL, TaskPriority::UpdateStorage) );
|
|
return Void();
|
|
}
|
|
|
|
state Reference<LogData> logData = self->id_data[self->spillOrder.front()];
|
|
state Version nextVersion = 0;
|
|
state int totalSize = 0;
|
|
|
|
state FlowLock::Releaser commitLockReleaser;
|
|
|
|
//FIXME: This policy for calculating the cache pop version could end up popping recent data in the remote DC after two consecutive recoveries.
|
|
// It also does not protect against spilling the cache tag directly, so it is theoretically possible to spill this tag; which is not intended to ever happen.
|
|
Optional<Version> cachePopVersion;
|
|
for(auto& it : self->id_data) {
|
|
if(!it.second->stopped) {
|
|
if(it.second->version.get() - it.second->unrecoveredBefore > SERVER_KNOBS->MAX_VERSIONS_IN_FLIGHT + SERVER_KNOBS->MAX_CACHE_VERSIONS) {
|
|
cachePopVersion = it.second->version.get() - SERVER_KNOBS->MAX_CACHE_VERSIONS;
|
|
}
|
|
break;
|
|
}
|
|
}
|
|
|
|
if(cachePopVersion.present()) {
|
|
state std::vector<Future<Void>> cachePopFutures;
|
|
for(auto& it : self->id_data) {
|
|
cachePopFutures.push_back(tLogPop(self, TLogPopRequest(cachePopVersion.get(),0,cacheTag), it.second));
|
|
}
|
|
wait( waitForAll(cachePopFutures) );
|
|
}
|
|
|
|
if(logData->stopped) {
|
|
if (self->bytesInput - self->bytesDurable >= self->targetVolatileBytes) {
|
|
while(logData->persistentDataDurableVersion != logData->version.get()) {
|
|
totalSize = 0;
|
|
Map<Version, std::pair<int,int>>::iterator sizeItr = logData->version_sizes.begin();
|
|
nextVersion = logData->version.get();
|
|
while( totalSize < SERVER_KNOBS->REFERENCE_SPILL_UPDATE_STORAGE_BYTE_LIMIT &&
|
|
sizeItr != logData->version_sizes.end() )
|
|
{
|
|
totalSize += sizeItr->value.first + sizeItr->value.second;
|
|
++sizeItr;
|
|
nextVersion = sizeItr == logData->version_sizes.end() ? logData->version.get() : sizeItr->key;
|
|
}
|
|
|
|
wait( logData->queueCommittedVersion.whenAtLeast( nextVersion ) );
|
|
wait( delay(0, TaskPriority::UpdateStorage) );
|
|
|
|
//TraceEvent("TlogUpdatePersist", self->dbgid).detail("LogId", logData->logId).detail("NextVersion", nextVersion).detail("Version", logData->version.get()).detail("PersistentDataDurableVer", logData->persistentDataDurableVersion).detail("QueueCommitVer", logData->queueCommittedVersion.get()).detail("PersistDataVer", logData->persistentDataVersion);
|
|
if (nextVersion > logData->persistentDataVersion) {
|
|
wait( self->persistentDataCommitLock.take() );
|
|
commitLockReleaser = FlowLock::Releaser(self->persistentDataCommitLock);
|
|
wait( updatePersistentData(self, logData, nextVersion) );
|
|
// Concurrently with this loop, the last stopped TLog could have been removed.
|
|
if (self->popOrder.size()) {
|
|
wait( popDiskQueue(self, self->id_data[self->popOrder.front()]) );
|
|
}
|
|
commitLockReleaser.release();
|
|
} else {
|
|
wait( delay(BUGGIFY ? SERVER_KNOBS->BUGGIFY_TLOG_STORAGE_MIN_UPDATE_INTERVAL : SERVER_KNOBS->TLOG_STORAGE_MIN_UPDATE_INTERVAL, TaskPriority::UpdateStorage) );
|
|
}
|
|
|
|
if( logData->removed.isReady() ) {
|
|
break;
|
|
}
|
|
}
|
|
|
|
if(logData->persistentDataDurableVersion == logData->version.get()) {
|
|
self->spillOrder.pop_front();
|
|
}
|
|
wait( delay(0.0, TaskPriority::UpdateStorage) );
|
|
} else {
|
|
wait( delay(BUGGIFY ? SERVER_KNOBS->BUGGIFY_TLOG_STORAGE_MIN_UPDATE_INTERVAL : SERVER_KNOBS->TLOG_STORAGE_MIN_UPDATE_INTERVAL, TaskPriority::UpdateStorage) );
|
|
}
|
|
}
|
|
else if(logData->initialized) {
|
|
ASSERT(self->spillOrder.size() == 1);
|
|
if(logData->version_sizes.empty()) {
|
|
nextVersion = logData->version.get();
|
|
} else {
|
|
// Double check that a running TLog wasn't wrongly affected by spilling locked SharedTLogs.
|
|
ASSERT_WE_THINK(self->targetVolatileBytes == SERVER_KNOBS->TLOG_SPILL_THRESHOLD);
|
|
Map<Version, std::pair<int,int>>::iterator sizeItr = logData->version_sizes.begin();
|
|
while( totalSize < SERVER_KNOBS->REFERENCE_SPILL_UPDATE_STORAGE_BYTE_LIMIT &&
|
|
sizeItr != logData->version_sizes.end()
|
|
&& (logData->bytesInput.getValue() - logData->bytesDurable.getValue() - totalSize >= self->targetVolatileBytes || sizeItr->value.first == 0) )
|
|
{
|
|
totalSize += sizeItr->value.first + sizeItr->value.second;
|
|
++sizeItr;
|
|
nextVersion = sizeItr == logData->version_sizes.end() ? logData->version.get() : sizeItr->key;
|
|
}
|
|
}
|
|
|
|
//TraceEvent("UpdateStorageVer", logData->logId).detail("NextVersion", nextVersion).detail("PersistentDataVersion", logData->persistentDataVersion).detail("TotalSize", totalSize);
|
|
|
|
wait( logData->queueCommittedVersion.whenAtLeast( nextVersion ) );
|
|
wait( delay(0, TaskPriority::UpdateStorage) );
|
|
|
|
if (nextVersion > logData->persistentDataVersion) {
|
|
wait( self->persistentDataCommitLock.take() );
|
|
commitLockReleaser = FlowLock::Releaser(self->persistentDataCommitLock);
|
|
wait( updatePersistentData(self, logData, nextVersion) );
|
|
if (self->popOrder.size()) {
|
|
wait( popDiskQueue(self, self->id_data[self->popOrder.front()]) );
|
|
}
|
|
commitLockReleaser.release();
|
|
}
|
|
|
|
if( totalSize < SERVER_KNOBS->UPDATE_STORAGE_BYTE_LIMIT ) {
|
|
wait( delay(BUGGIFY ? SERVER_KNOBS->BUGGIFY_TLOG_STORAGE_MIN_UPDATE_INTERVAL : SERVER_KNOBS->TLOG_STORAGE_MIN_UPDATE_INTERVAL, TaskPriority::UpdateStorage) );
|
|
}
|
|
else {
|
|
//recovery wants to commit to persistant data when updatePersistentData is not active, this delay ensures that immediately after
|
|
//updatePersist returns another one has not been started yet.
|
|
wait( delay(0.0, TaskPriority::UpdateStorage) );
|
|
}
|
|
} else {
|
|
wait( delay(BUGGIFY ? SERVER_KNOBS->BUGGIFY_TLOG_STORAGE_MIN_UPDATE_INTERVAL : SERVER_KNOBS->TLOG_STORAGE_MIN_UPDATE_INTERVAL, TaskPriority::UpdateStorage) );
|
|
}
|
|
return Void();
|
|
}
|
|
|
|
ACTOR Future<Void> updateStorageLoop( TLogData* self ) {
|
|
wait(delay(0, TaskPriority::UpdateStorage));
|
|
|
|
loop {
|
|
wait( updateStorage(self) );
|
|
}
|
|
}
|
|
|
|
void commitMessages( TLogData* self, Reference<LogData> logData, Version version, const std::vector<TagsAndMessage>& taggedMessages ) {
|
|
// SOMEDAY: This method of copying messages is reasonably memory efficient, but it's still a lot of bytes copied. Find a
|
|
// way to do the memory allocation right as we receive the messages in the network layer.
|
|
|
|
int64_t addedBytes = 0;
|
|
int64_t overheadBytes = 0;
|
|
int expectedBytes = 0;
|
|
int txsBytes = 0;
|
|
|
|
if(!taggedMessages.size()) {
|
|
return;
|
|
}
|
|
|
|
int msgSize = 0;
|
|
for(auto& i : taggedMessages) {
|
|
msgSize += i.message.size();
|
|
}
|
|
|
|
// Grab the last block in the blocks list so we can share its arena
|
|
// We pop all of the elements of it to create a "fresh" vector that starts at the end of the previous vector
|
|
Standalone<VectorRef<uint8_t>> block;
|
|
if(logData->messageBlocks.empty()) {
|
|
block = Standalone<VectorRef<uint8_t>>();
|
|
block.reserve(block.arena(), std::max<int64_t>(SERVER_KNOBS->TLOG_MESSAGE_BLOCK_BYTES, msgSize));
|
|
}
|
|
else {
|
|
block = logData->messageBlocks.back().second;
|
|
}
|
|
|
|
block.pop_front(block.size());
|
|
|
|
for(auto& msg : taggedMessages) {
|
|
if(msg.message.size() > block.capacity() - block.size()) {
|
|
logData->messageBlocks.emplace_back(version, block);
|
|
addedBytes += int64_t(block.size()) * SERVER_KNOBS->TLOG_MESSAGE_BLOCK_OVERHEAD_FACTOR;
|
|
block = Standalone<VectorRef<uint8_t>>();
|
|
block.reserve(block.arena(), std::max<int64_t>(SERVER_KNOBS->TLOG_MESSAGE_BLOCK_BYTES, msgSize));
|
|
}
|
|
|
|
block.append(block.arena(), msg.message.begin(), msg.message.size());
|
|
for(auto tag : msg.tags) {
|
|
if(logData->locality == tagLocalitySatellite) {
|
|
if(!(tag.locality == tagLocalityTxs || tag.locality == tagLocalityLogRouter || tag == txsTag)) {
|
|
continue;
|
|
}
|
|
} else if(!(logData->locality == tagLocalitySpecial || logData->locality == tag.locality || tag.locality < 0)) {
|
|
continue;
|
|
}
|
|
|
|
if(tag.locality == tagLocalityLogRouter) {
|
|
if(!logData->logRouterTags) {
|
|
continue;
|
|
}
|
|
tag.id = tag.id % logData->logRouterTags;
|
|
}
|
|
if(tag.locality == tagLocalityTxs) {
|
|
if (logData->txsTags > 0) {
|
|
tag.id = tag.id % logData->txsTags;
|
|
} else {
|
|
tag = txsTag;
|
|
}
|
|
}
|
|
Reference<LogData::TagData> tagData = logData->getTagData(tag);
|
|
if(!tagData) {
|
|
tagData = logData->createTagData(tag, 0, true, true, false);
|
|
}
|
|
|
|
if (version >= tagData->popped) {
|
|
tagData->versionMessages.emplace_back(version, LengthPrefixedStringRef((uint32_t*)(block.end() - msg.message.size())));
|
|
if(tagData->versionMessages.back().second.expectedSize() > SERVER_KNOBS->MAX_MESSAGE_SIZE) {
|
|
TraceEvent(SevWarnAlways, "LargeMessage").detail("Size", tagData->versionMessages.back().second.expectedSize());
|
|
}
|
|
if (tag.locality != tagLocalityTxs && tag != txsTag) {
|
|
expectedBytes += tagData->versionMessages.back().second.expectedSize();
|
|
} else {
|
|
txsBytes += tagData->versionMessages.back().second.expectedSize();
|
|
}
|
|
|
|
// The factor of VERSION_MESSAGES_OVERHEAD is intended to be an overestimate of the actual memory used to store this data in a std::deque.
|
|
// In practice, this number is probably something like 528/512 ~= 1.03, but this could vary based on the implementation.
|
|
// There will also be a fixed overhead per std::deque, but its size should be trivial relative to the size of the TLog
|
|
// queue and can be thought of as increasing the capacity of the queue slightly.
|
|
overheadBytes += SERVER_KNOBS->VERSION_MESSAGES_ENTRY_BYTES_WITH_OVERHEAD;
|
|
}
|
|
}
|
|
|
|
msgSize -= msg.message.size();
|
|
}
|
|
logData->messageBlocks.emplace_back(version, block);
|
|
addedBytes += int64_t(block.size()) * SERVER_KNOBS->TLOG_MESSAGE_BLOCK_OVERHEAD_FACTOR;
|
|
addedBytes += overheadBytes;
|
|
|
|
logData->version_sizes[version] = std::make_pair(expectedBytes, txsBytes);
|
|
logData->bytesInput += addedBytes;
|
|
self->bytesInput += addedBytes;
|
|
self->overheadBytesInput += overheadBytes;
|
|
|
|
//TraceEvent("TLogPushed", self->dbgid).detail("Bytes", addedBytes).detail("MessageBytes", messages.size()).detail("Tags", tags.size()).detail("ExpectedBytes", expectedBytes).detail("MCount", mCount).detail("TCount", tCount);
|
|
}
|
|
|
|
void commitMessages( TLogData *self, Reference<LogData> logData, Version version, Arena arena, StringRef messages ) {
|
|
ArenaReader rd( arena, messages, Unversioned() );
|
|
self->tempTagMessages.clear();
|
|
while(!rd.empty()) {
|
|
TagsAndMessage tagsAndMsg;
|
|
tagsAndMsg.loadFromArena(&rd, nullptr);
|
|
self->tempTagMessages.push_back(std::move(tagsAndMsg));
|
|
}
|
|
commitMessages(self, logData, version, self->tempTagMessages);
|
|
}
|
|
|
|
Version poppedVersion( Reference<LogData> self, Tag tag) {
|
|
auto tagData = self->getTagData(tag);
|
|
if (!tagData) {
|
|
if (tag == txsTag || tag.locality == tagLocalityTxs) {
|
|
return 0;
|
|
}
|
|
return self->recoveredAt;
|
|
}
|
|
return tagData->popped;
|
|
}
|
|
|
|
std::deque<std::pair<Version, LengthPrefixedStringRef>> & getVersionMessages( Reference<LogData> self, Tag tag ) {
|
|
auto tagData = self->getTagData(tag);
|
|
if (!tagData) {
|
|
static std::deque<std::pair<Version, LengthPrefixedStringRef>> empty;
|
|
return empty;
|
|
}
|
|
return tagData->versionMessages;
|
|
};
|
|
|
|
void peekMessagesFromMemory( Reference<LogData> self, TLogPeekRequest const& req, BinaryWriter& messages, Version& endVersion ) {
|
|
ASSERT( !messages.getLength() );
|
|
|
|
auto& deque = getVersionMessages(self, req.tag);
|
|
//TraceEvent("TLogPeekMem", self->dbgid).detail("Tag", req.tag1).detail("PDS", self->persistentDataSequence).detail("PDDS", self->persistentDataDurableSequence).detail("Oldest", map1.empty() ? 0 : map1.begin()->key ).detail("OldestMsgCount", map1.empty() ? 0 : map1.begin()->value.size());
|
|
|
|
Version begin = std::max( req.begin, self->persistentDataDurableVersion+1 );
|
|
auto it = std::lower_bound(deque.begin(), deque.end(), std::make_pair(begin, LengthPrefixedStringRef()), CompareFirst<std::pair<Version, LengthPrefixedStringRef>>());
|
|
|
|
Version currentVersion = -1;
|
|
for(; it != deque.end(); ++it) {
|
|
if(it->first != currentVersion) {
|
|
if (messages.getLength() >= SERVER_KNOBS->DESIRED_TOTAL_BYTES) {
|
|
endVersion = currentVersion + 1;
|
|
//TraceEvent("TLogPeekMessagesReached2", self->dbgid);
|
|
break;
|
|
}
|
|
|
|
currentVersion = it->first;
|
|
messages << VERSION_HEADER << currentVersion;
|
|
}
|
|
|
|
messages << it->second.toStringRef();
|
|
}
|
|
}
|
|
|
|
ACTOR Future<std::vector<StringRef>> parseMessagesForTag( StringRef commitBlob, Tag tag, int logRouters ) {
|
|
// See the comment in LogSystem.cpp for the binary format of commitBlob.
|
|
state std::vector<StringRef> relevantMessages;
|
|
state BinaryReader rd(commitBlob, AssumeVersion(currentProtocolVersion));
|
|
while (!rd.empty()) {
|
|
TagsAndMessage tagsAndMessage;
|
|
tagsAndMessage.loadFromArena(&rd, nullptr);
|
|
for (Tag t : tagsAndMessage.tags) {
|
|
if (t == tag || (tag.locality == tagLocalityLogRouter && t.locality == tagLocalityLogRouter &&
|
|
t.id % logRouters == tag.id)) {
|
|
// Mutations that are in the partially durable span between known comitted version and
|
|
// recovery version get copied to the new log generation. These commits might have had more
|
|
// log router tags than what now exist, so we mod them down to what we have.
|
|
relevantMessages.push_back(tagsAndMessage.getRawMessage());
|
|
break;
|
|
}
|
|
}
|
|
wait(yield());
|
|
}
|
|
return relevantMessages;
|
|
}
|
|
|
|
ACTOR Future<Void> tLogPeekMessages( TLogData* self, TLogPeekRequest req, Reference<LogData> logData ) {
|
|
state BinaryWriter messages(Unversioned());
|
|
state BinaryWriter messages2(Unversioned());
|
|
state int sequence = -1;
|
|
state UID peekId;
|
|
|
|
if(req.sequence.present()) {
|
|
try {
|
|
peekId = req.sequence.get().first;
|
|
sequence = req.sequence.get().second;
|
|
if (sequence >= SERVER_KNOBS->PARALLEL_GET_MORE_REQUESTS && logData->peekTracker.find(peekId) == logData->peekTracker.end()) {
|
|
throw operation_obsolete();
|
|
}
|
|
auto& trackerData = logData->peekTracker[peekId];
|
|
if (sequence == 0 && trackerData.sequence_version.find(0) == trackerData.sequence_version.end()) {
|
|
trackerData.sequence_version[0].send(std::make_pair(req.begin, req.onlySpilled));
|
|
}
|
|
auto seqBegin = trackerData.sequence_version.begin();
|
|
// The peek cursor and this comparison need to agree about the maximum number of in-flight requests.
|
|
while(trackerData.sequence_version.size() && seqBegin->first <= sequence - SERVER_KNOBS->PARALLEL_GET_MORE_REQUESTS) {
|
|
if(seqBegin->second.canBeSet()) {
|
|
seqBegin->second.sendError(operation_obsolete());
|
|
}
|
|
trackerData.sequence_version.erase(seqBegin);
|
|
seqBegin = trackerData.sequence_version.begin();
|
|
}
|
|
|
|
if(trackerData.sequence_version.size() && sequence < seqBegin->first) {
|
|
throw operation_obsolete();
|
|
}
|
|
|
|
trackerData.lastUpdate = now();
|
|
std::pair<Version, bool> prevPeekData = wait(trackerData.sequence_version[sequence].getFuture());
|
|
req.begin = std::max(prevPeekData.first, req.begin);
|
|
req.onlySpilled = prevPeekData.second;
|
|
wait(yield());
|
|
} catch( Error &e ) {
|
|
if(e.code() == error_code_timed_out || e.code() == error_code_operation_obsolete) {
|
|
req.reply.sendError(e);
|
|
return Void();
|
|
} else {
|
|
throw;
|
|
}
|
|
}
|
|
}
|
|
|
|
if( req.returnIfBlocked && logData->version.get() < req.begin ) {
|
|
req.reply.sendError(end_of_stream());
|
|
if(req.sequence.present()) {
|
|
auto& trackerData = logData->peekTracker[peekId];
|
|
auto& sequenceData = trackerData.sequence_version[sequence+1];
|
|
trackerData.lastUpdate = now();
|
|
if (!sequenceData.isSet()) {
|
|
sequenceData.send(std::make_pair(req.begin, req.onlySpilled));
|
|
}
|
|
}
|
|
return Void();
|
|
}
|
|
|
|
//TraceEvent("TLogPeekMessages0", self->dbgid).detail("ReqBeginEpoch", req.begin.epoch).detail("ReqBeginSeq", req.begin.sequence).detail("Epoch", self->epoch()).detail("PersistentDataSeq", self->persistentDataSequence).detail("Tag1", req.tag1).detail("Tag2", req.tag2);
|
|
// Wait until we have something to return that the caller doesn't already have
|
|
if( logData->version.get() < req.begin ) {
|
|
wait( logData->version.whenAtLeast( req.begin ) );
|
|
wait( delay(SERVER_KNOBS->TLOG_PEEK_DELAY, g_network->getCurrentTask()) );
|
|
}
|
|
|
|
if( logData->locality != tagLocalitySatellite && req.tag.locality == tagLocalityLogRouter ) {
|
|
wait( self->concurrentLogRouterReads.take() );
|
|
state FlowLock::Releaser globalReleaser(self->concurrentLogRouterReads);
|
|
wait( delay(0.0, TaskPriority::Low) );
|
|
}
|
|
|
|
if( req.begin <= logData->persistentDataDurableVersion && req.tag.locality != tagLocalityTxs && req.tag != txsTag) {
|
|
// Reading spilled data will almost always imply that the storage server is >5s behind the rest
|
|
// of the cluster. We shouldn't prioritize spending CPU on helping this server catch up
|
|
// slightly faster over keeping the rest of the cluster operating normally.
|
|
// txsTag is only ever peeked on recovery, and we would still wish to prioritize requests
|
|
// that impact recovery duration.
|
|
wait(delay(0, TaskPriority::TLogSpilledPeekReply));
|
|
}
|
|
|
|
Version poppedVer = poppedVersion(logData, req.tag);
|
|
if(poppedVer > req.begin) {
|
|
TLogPeekReply rep;
|
|
rep.maxKnownVersion = logData->version.get();
|
|
rep.minKnownCommittedVersion = logData->minKnownCommittedVersion;
|
|
rep.popped = poppedVer;
|
|
rep.end = poppedVer;
|
|
rep.onlySpilled = false;
|
|
|
|
if(req.sequence.present()) {
|
|
auto& trackerData = logData->peekTracker[peekId];
|
|
auto& sequenceData = trackerData.sequence_version[sequence+1];
|
|
trackerData.lastUpdate = now();
|
|
if(trackerData.sequence_version.size() && sequence+1 < trackerData.sequence_version.begin()->first) {
|
|
req.reply.sendError(operation_obsolete());
|
|
if (!sequenceData.isSet())
|
|
sequenceData.sendError(operation_obsolete());
|
|
return Void();
|
|
}
|
|
if(sequenceData.isSet()) {
|
|
if(sequenceData.getFuture().get().first != rep.end) {
|
|
TEST(true); //tlog peek second attempt ended at a different version
|
|
req.reply.sendError(operation_obsolete());
|
|
return Void();
|
|
}
|
|
} else {
|
|
sequenceData.send(std::make_pair(rep.end, rep.onlySpilled));
|
|
}
|
|
rep.begin = req.begin;
|
|
}
|
|
|
|
req.reply.send( rep );
|
|
return Void();
|
|
}
|
|
|
|
state Version endVersion = logData->version.get() + 1;
|
|
state bool onlySpilled = false;
|
|
|
|
//grab messages from disk
|
|
//TraceEvent("TLogPeekMessages", self->dbgid).detail("ReqBeginEpoch", req.begin.epoch).detail("ReqBeginSeq", req.begin.sequence).detail("Epoch", self->epoch()).detail("PersistentDataSeq", self->persistentDataSequence).detail("Tag1", req.tag1).detail("Tag2", req.tag2);
|
|
if( req.begin <= logData->persistentDataDurableVersion ) {
|
|
// Just in case the durable version changes while we are waiting for the read, we grab this data from memory. We may or may not actually send it depending on
|
|
// whether we get enough data from disk.
|
|
// SOMEDAY: Only do this if an initial attempt to read from disk results in insufficient data and the required data is no longer in memory
|
|
// SOMEDAY: Should we only send part of the messages we collected, to actually limit the size of the result?
|
|
|
|
if (req.onlySpilled) {
|
|
endVersion = logData->persistentDataDurableVersion + 1;
|
|
} else {
|
|
peekMessagesFromMemory( logData, req, messages2, endVersion );
|
|
}
|
|
|
|
if ( logData->shouldSpillByValue(req.tag) ) {
|
|
Standalone<RangeResultRef> kvs = wait(
|
|
self->persistentData->readRange(KeyRangeRef(
|
|
persistTagMessagesKey(logData->logId, req.tag, req.begin),
|
|
persistTagMessagesKey(logData->logId, req.tag, logData->persistentDataDurableVersion + 1)), SERVER_KNOBS->DESIRED_TOTAL_BYTES, SERVER_KNOBS->DESIRED_TOTAL_BYTES));
|
|
|
|
for (auto &kv : kvs) {
|
|
auto ver = decodeTagMessagesKey(kv.key);
|
|
messages << VERSION_HEADER << ver;
|
|
messages.serializeBytes(kv.value);
|
|
}
|
|
|
|
if (kvs.expectedSize() >= SERVER_KNOBS->DESIRED_TOTAL_BYTES) {
|
|
endVersion = decodeTagMessagesKey(kvs.end()[-1].key) + 1;
|
|
onlySpilled = true;
|
|
} else {
|
|
messages.serializeBytes( messages2.toValue() );
|
|
}
|
|
} else {
|
|
// FIXME: Limit to approximately DESIRED_TOTATL_BYTES somehow.
|
|
Standalone<RangeResultRef> kvrefs = wait(
|
|
self->persistentData->readRange(KeyRangeRef(
|
|
persistTagMessageRefsKey(logData->logId, req.tag, req.begin),
|
|
persistTagMessageRefsKey(logData->logId, req.tag, logData->persistentDataDurableVersion + 1)),
|
|
SERVER_KNOBS->TLOG_SPILL_REFERENCE_MAX_BATCHES_PER_PEEK+1));
|
|
|
|
//TraceEvent("TLogPeekResults", self->dbgid).detail("ForAddress", req.reply.getEndpoint().getPrimaryAddress()).detail("Tag1Results", s1).detail("Tag2Results", s2).detail("Tag1ResultsLim", kv1.size()).detail("Tag2ResultsLim", kv2.size()).detail("Tag1ResultsLast", kv1.size() ? kv1[0].key : "").detail("Tag2ResultsLast", kv2.size() ? kv2[0].key : "").detail("Limited", limited).detail("NextEpoch", next_pos.epoch).detail("NextSeq", next_pos.sequence).detail("NowEpoch", self->epoch()).detail("NowSeq", self->sequence.getNextSequence());
|
|
|
|
state std::vector<std::pair<IDiskQueue::location, IDiskQueue::location>> commitLocations;
|
|
state bool earlyEnd = false;
|
|
uint32_t mutationBytes = 0;
|
|
state uint64_t commitBytes = 0;
|
|
state Version firstVersion = std::numeric_limits<Version>::max();
|
|
for (int i = 0; i < kvrefs.size() && i < SERVER_KNOBS->TLOG_SPILL_REFERENCE_MAX_BATCHES_PER_PEEK; i++) {
|
|
auto& kv = kvrefs[i];
|
|
VectorRef<SpilledData> spilledData;
|
|
BinaryReader r(kv.value, AssumeVersion(logData->protocolVersion));
|
|
r >> spilledData;
|
|
for (const SpilledData& sd : spilledData) {
|
|
if (mutationBytes >= SERVER_KNOBS->DESIRED_TOTAL_BYTES) {
|
|
earlyEnd = true;
|
|
break;
|
|
}
|
|
if (sd.version >= req.begin) {
|
|
firstVersion = std::min(firstVersion, sd.version);
|
|
const IDiskQueue::location end = sd.start.lo + sd.length;
|
|
commitLocations.emplace_back(sd.start, end);
|
|
// This isn't perfect, because we aren't accounting for page boundaries, but should be
|
|
// close enough.
|
|
commitBytes += sd.length;
|
|
mutationBytes += sd.mutationBytes;
|
|
}
|
|
}
|
|
if (earlyEnd) break;
|
|
}
|
|
earlyEnd = earlyEnd || (kvrefs.size() >= SERVER_KNOBS->TLOG_SPILL_REFERENCE_MAX_BATCHES_PER_PEEK+1);
|
|
wait( self->peekMemoryLimiter.take(TaskPriority::TLogSpilledPeekReply, commitBytes) );
|
|
state FlowLock::Releaser memoryReservation(self->peekMemoryLimiter, commitBytes);
|
|
state std::vector<Future<Standalone<StringRef>>> messageReads;
|
|
messageReads.reserve( commitLocations.size() );
|
|
for (const auto& pair : commitLocations) {
|
|
messageReads.push_back( self->rawPersistentQueue->read(pair.first, pair.second, CheckHashes::YES ) );
|
|
}
|
|
commitLocations.clear();
|
|
wait( waitForAll( messageReads ) );
|
|
|
|
state Version lastRefMessageVersion = 0;
|
|
state int index = 0;
|
|
loop {
|
|
if (index >= messageReads.size()) break;
|
|
Standalone<StringRef> queueEntryData = messageReads[index].get();
|
|
uint8_t valid;
|
|
const uint32_t length = *(uint32_t*)queueEntryData.begin();
|
|
queueEntryData = queueEntryData.substr( 4, queueEntryData.size() - 4);
|
|
BinaryReader rd( queueEntryData, IncludeVersion() );
|
|
state TLogQueueEntry entry;
|
|
rd >> entry >> valid;
|
|
ASSERT( valid == 0x01 );
|
|
ASSERT( length + sizeof(valid) == queueEntryData.size() );
|
|
|
|
messages << VERSION_HEADER << entry.version;
|
|
|
|
std::vector<StringRef> rawMessages =
|
|
wait(parseMessagesForTag(entry.messages, req.tag, logData->logRouterTags));
|
|
for (const StringRef& msg : rawMessages) {
|
|
messages.serializeBytes(msg);
|
|
}
|
|
|
|
lastRefMessageVersion = entry.version;
|
|
index++;
|
|
}
|
|
|
|
messageReads.clear();
|
|
memoryReservation.release();
|
|
|
|
if (earlyEnd) {
|
|
endVersion = lastRefMessageVersion + 1;
|
|
onlySpilled = true;
|
|
} else {
|
|
messages.serializeBytes( messages2.toValue() );
|
|
}
|
|
}
|
|
} else {
|
|
if (req.onlySpilled) {
|
|
endVersion = logData->persistentDataDurableVersion + 1;
|
|
} else {
|
|
peekMessagesFromMemory( logData, req, messages, endVersion );
|
|
}
|
|
|
|
//TraceEvent("TLogPeekResults", self->dbgid).detail("ForAddress", req.reply.getEndpoint().getPrimaryAddress()).detail("MessageBytes", messages.getLength()).detail("NextEpoch", next_pos.epoch).detail("NextSeq", next_pos.sequence).detail("NowSeq", self->sequence.getNextSequence());
|
|
}
|
|
|
|
TLogPeekReply reply;
|
|
reply.maxKnownVersion = logData->version.get();
|
|
reply.minKnownCommittedVersion = logData->minKnownCommittedVersion;
|
|
reply.messages = messages.toValue();
|
|
reply.end = endVersion;
|
|
reply.onlySpilled = onlySpilled;
|
|
|
|
//TraceEvent("TlogPeek", self->dbgid).detail("LogId", logData->logId).detail("EndVer", reply.end).detail("MsgBytes", reply.messages.expectedSize()).detail("ForAddress", req.reply.getEndpoint().getPrimaryAddress());
|
|
|
|
if(req.sequence.present()) {
|
|
auto& trackerData = logData->peekTracker[peekId];
|
|
auto& sequenceData = trackerData.sequence_version[sequence+1];
|
|
trackerData.lastUpdate = now();
|
|
if(trackerData.sequence_version.size() && sequence+1 < trackerData.sequence_version.begin()->first) {
|
|
req.reply.sendError(operation_obsolete());
|
|
if(!sequenceData.isSet()) {
|
|
// It would technically be more correct to .send({req.begin, req.onlySpilled}), as the next
|
|
// request might still be in the window of active requests, but LogSystemPeekCursor will
|
|
// throw away all future responses upon getting an operation_obsolete(), so computing a
|
|
// response will probably be a waste of CPU.
|
|
sequenceData.sendError(operation_obsolete());
|
|
}
|
|
return Void();
|
|
}
|
|
if(sequenceData.isSet()) {
|
|
if(sequenceData.getFuture().get().first != reply.end) {
|
|
TEST(true); //tlog peek second attempt ended at a different version
|
|
req.reply.sendError(operation_obsolete());
|
|
return Void();
|
|
}
|
|
} else {
|
|
sequenceData.send(std::make_pair(reply.end, reply.onlySpilled));
|
|
}
|
|
reply.begin = req.begin;
|
|
}
|
|
|
|
req.reply.send( reply );
|
|
return Void();
|
|
}
|
|
|
|
ACTOR Future<Void> watchDegraded(TLogData* self) {
|
|
if(g_network->isSimulated() && g_simulator.speedUpSimulation) {
|
|
return Void();
|
|
}
|
|
|
|
wait(lowPriorityDelay(SERVER_KNOBS->TLOG_DEGRADED_DURATION));
|
|
|
|
TraceEvent(SevWarnAlways, "TLogDegraded", self->dbgid);
|
|
TEST(true); //TLog degraded
|
|
self->degraded->set(true);
|
|
return Void();
|
|
}
|
|
|
|
ACTOR Future<Void> doQueueCommit( TLogData* self, Reference<LogData> logData, std::vector<Reference<LogData>> missingFinalCommit ) {
|
|
state Version ver = logData->version.get();
|
|
state Version commitNumber = self->queueCommitBegin+1;
|
|
state Version knownCommittedVersion = logData->knownCommittedVersion;
|
|
self->queueCommitBegin = commitNumber;
|
|
logData->queueCommittingVersion = ver;
|
|
|
|
g_network->setCurrentTask(TaskPriority::TLogCommitReply);
|
|
Future<Void> c = self->persistentQueue->commit();
|
|
self->diskQueueCommitBytes = 0;
|
|
self->largeDiskQueueCommitBytes.set(false);
|
|
|
|
state Future<Void> degraded = watchDegraded(self);
|
|
wait(c);
|
|
if(g_network->isSimulated() && !g_simulator.speedUpSimulation && BUGGIFY_WITH_PROB(0.0001)) {
|
|
wait(delay(6.0));
|
|
}
|
|
degraded.cancel();
|
|
wait(self->queueCommitEnd.whenAtLeast(commitNumber-1));
|
|
|
|
//Calling check_yield instead of yield to avoid a destruction ordering problem in simulation
|
|
if(g_network->check_yield(g_network->getCurrentTask())) {
|
|
wait(delay(0, g_network->getCurrentTask()));
|
|
}
|
|
|
|
ASSERT( ver > logData->queueCommittedVersion.get() );
|
|
|
|
logData->durableKnownCommittedVersion = knownCommittedVersion;
|
|
if(logData->unpoppedRecoveredTags == 0 && knownCommittedVersion >= logData->recoveredAt && logData->recoveryComplete.canBeSet()) {
|
|
TraceEvent("TLogRecoveryComplete", logData->logId).detail("Tags", logData->unpoppedRecoveredTags).detail("DurableKCVer", logData->durableKnownCommittedVersion).detail("RecoveredAt", logData->recoveredAt);
|
|
logData->recoveryComplete.send(Void());
|
|
}
|
|
|
|
//TraceEvent("TLogCommitDurable", self->dbgid).detail("Version", ver);
|
|
if(logData->logSystem->get() && (!logData->isPrimary || logData->logRouterPoppedVersion < logData->logRouterPopToVersion)) {
|
|
logData->logRouterPoppedVersion = ver;
|
|
logData->logSystem->get()->pop(ver, logData->remoteTag, knownCommittedVersion, logData->locality);
|
|
}
|
|
|
|
logData->queueCommittedVersion.set(ver);
|
|
self->queueCommitEnd.set(commitNumber);
|
|
|
|
for(auto& it : missingFinalCommit) {
|
|
TraceEvent("TLogCommitMissingFinalCommit", self->dbgid).detail("LogId", logData->logId).detail("Version", it->version.get()).detail("QueueVer", it->queueCommittedVersion.get());
|
|
TEST(true); //A TLog was replaced before having a chance to commit its queue
|
|
it->queueCommittedVersion.set(it->version.get());
|
|
}
|
|
return Void();
|
|
}
|
|
|
|
ACTOR Future<Void> commitQueue( TLogData* self ) {
|
|
state Reference<LogData> logData;
|
|
|
|
loop {
|
|
int foundCount = 0;
|
|
state std::vector<Reference<LogData>> missingFinalCommit;
|
|
for(auto it : self->id_data) {
|
|
if(!it.second->stopped) {
|
|
logData = it.second;
|
|
foundCount++;
|
|
} else if(it.second->version.get() > std::max(it.second->queueCommittingVersion, it.second->queueCommittedVersion.get())) {
|
|
missingFinalCommit.push_back(it.second);
|
|
}
|
|
}
|
|
|
|
ASSERT(foundCount < 2);
|
|
if(!foundCount) {
|
|
wait( self->newLogData.onTrigger() );
|
|
continue;
|
|
}
|
|
|
|
TraceEvent("CommitQueueNewLog", self->dbgid).detail("LogId", logData->logId).detail("Version", logData->version.get()).detail("Committing", logData->queueCommittingVersion).detail("Commmitted", logData->queueCommittedVersion.get());
|
|
if(logData->committingQueue.canBeSet()) {
|
|
logData->committingQueue.send(Void());
|
|
}
|
|
|
|
loop {
|
|
if(logData->stopped && logData->version.get() == std::max(logData->queueCommittingVersion, logData->queueCommittedVersion.get())) {
|
|
wait( logData->queueCommittedVersion.whenAtLeast(logData->version.get() ) );
|
|
break;
|
|
}
|
|
|
|
choose {
|
|
when(wait( logData->version.whenAtLeast( std::max(logData->queueCommittingVersion, logData->queueCommittedVersion.get()) + 1 ) ) ) {
|
|
while( self->queueCommitBegin != self->queueCommitEnd.get() && !self->largeDiskQueueCommitBytes.get() ) {
|
|
wait( self->queueCommitEnd.whenAtLeast(self->queueCommitBegin) || self->largeDiskQueueCommitBytes.onChange() );
|
|
}
|
|
self->sharedActors.send(doQueueCommit(self, logData, missingFinalCommit));
|
|
missingFinalCommit.clear();
|
|
}
|
|
when(wait(self->newLogData.onTrigger())) {}
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
ACTOR Future<Void> tLogCommit(
|
|
TLogData* self,
|
|
TLogCommitRequest req,
|
|
Reference<LogData> logData,
|
|
PromiseStream<Void> warningCollectorInput ) {
|
|
state Optional<UID> tlogDebugID;
|
|
if(req.debugID.present())
|
|
{
|
|
tlogDebugID = nondeterministicRandom()->randomUniqueID();
|
|
g_traceBatch.addAttach("CommitAttachID", req.debugID.get().first(), tlogDebugID.get().first());
|
|
g_traceBatch.addEvent("CommitDebug", tlogDebugID.get().first(), "TLog.tLogCommit.BeforeWaitForVersion");
|
|
}
|
|
|
|
logData->minKnownCommittedVersion = std::max(logData->minKnownCommittedVersion, req.minKnownCommittedVersion);
|
|
|
|
wait( logData->version.whenAtLeast( req.prevVersion ) );
|
|
|
|
//Calling check_yield instead of yield to avoid a destruction ordering problem in simulation
|
|
if(g_network->check_yield(g_network->getCurrentTask())) {
|
|
wait(delay(0, g_network->getCurrentTask()));
|
|
}
|
|
|
|
state double waitStartT = 0;
|
|
while( self->bytesInput - self->bytesDurable >= SERVER_KNOBS->TLOG_HARD_LIMIT_BYTES && !logData->stopped ) {
|
|
if (now() - waitStartT >= 1) {
|
|
TraceEvent(SevWarn, "TLogUpdateLag", logData->logId)
|
|
.detail("Version", logData->version.get())
|
|
.detail("PersistentDataVersion", logData->persistentDataVersion)
|
|
.detail("PersistentDataDurableVersion", logData->persistentDataDurableVersion);
|
|
waitStartT = now();
|
|
}
|
|
wait( delayJittered(.005, TaskPriority::TLogCommit) );
|
|
}
|
|
|
|
if(logData->stopped) {
|
|
req.reply.sendError( tlog_stopped() );
|
|
return Void();
|
|
}
|
|
|
|
if (logData->version.get() == req.prevVersion) { // Not a duplicate (check relies on critical section between here self->version.set() below!)
|
|
if(req.debugID.present())
|
|
g_traceBatch.addEvent("CommitDebug", tlogDebugID.get().first(), "TLog.tLogCommit.Before");
|
|
|
|
//TraceEvent("TLogCommit", logData->logId).detail("Version", req.version);
|
|
commitMessages(self, logData, req.version, req.arena, req.messages);
|
|
|
|
logData->knownCommittedVersion = std::max(logData->knownCommittedVersion, req.knownCommittedVersion);
|
|
|
|
TLogQueueEntryRef qe;
|
|
// Log the changes to the persistent queue, to be committed by commitQueue()
|
|
qe.version = req.version;
|
|
qe.knownCommittedVersion = logData->knownCommittedVersion;
|
|
qe.messages = req.messages;
|
|
qe.id = logData->logId;
|
|
self->persistentQueue->push( qe, logData );
|
|
|
|
self->diskQueueCommitBytes += qe.expectedSize();
|
|
if( self->diskQueueCommitBytes > SERVER_KNOBS->MAX_QUEUE_COMMIT_BYTES ) {
|
|
self->largeDiskQueueCommitBytes.set(true);
|
|
}
|
|
|
|
// Notifies the commitQueue actor to commit persistentQueue, and also unblocks tLogPeekMessages actors
|
|
logData->version.set( req.version );
|
|
|
|
if(req.debugID.present())
|
|
g_traceBatch.addEvent("CommitDebug", tlogDebugID.get().first(), "TLog.tLogCommit.AfterTLogCommit");
|
|
}
|
|
// Send replies only once all prior messages have been received and committed.
|
|
state Future<Void> stopped = logData->stopCommit.onTrigger();
|
|
wait( timeoutWarning( logData->queueCommittedVersion.whenAtLeast( req.version ) || stopped, 0.1, warningCollectorInput ) );
|
|
|
|
if(stopped.isReady()) {
|
|
ASSERT(logData->stopped);
|
|
req.reply.sendError( tlog_stopped() );
|
|
return Void();
|
|
}
|
|
|
|
if(req.debugID.present())
|
|
g_traceBatch.addEvent("CommitDebug", tlogDebugID.get().first(), "TLog.tLogCommit.After");
|
|
|
|
req.reply.send( logData->durableKnownCommittedVersion );
|
|
return Void();
|
|
}
|
|
|
|
ACTOR Future<Void> initPersistentState( TLogData* self, Reference<LogData> logData ) {
|
|
wait( self->persistentDataCommitLock.take() );
|
|
state FlowLock::Releaser commitLockReleaser(self->persistentDataCommitLock);
|
|
|
|
// PERSIST: Initial setup of persistentData for a brand new tLog for a new database
|
|
state IKeyValueStore *storage = self->persistentData;
|
|
wait(storage->init());
|
|
storage->set( persistFormat );
|
|
storage->set( KeyValueRef( BinaryWriter::toValue(logData->logId,Unversioned()).withPrefix(persistCurrentVersionKeys.begin), BinaryWriter::toValue(logData->version.get(), Unversioned()) ) );
|
|
storage->set( KeyValueRef( BinaryWriter::toValue(logData->logId,Unversioned()).withPrefix(persistKnownCommittedVersionKeys.begin), BinaryWriter::toValue(logData->knownCommittedVersion, Unversioned()) ) );
|
|
storage->set( KeyValueRef( BinaryWriter::toValue(logData->logId,Unversioned()).withPrefix(persistLocalityKeys.begin), BinaryWriter::toValue(logData->locality, Unversioned()) ) );
|
|
storage->set( KeyValueRef( BinaryWriter::toValue(logData->logId,Unversioned()).withPrefix(persistLogRouterTagsKeys.begin), BinaryWriter::toValue(logData->logRouterTags, Unversioned()) ) );
|
|
storage->set( KeyValueRef( BinaryWriter::toValue(logData->logId,Unversioned()).withPrefix(persistTxsTagsKeys.begin), BinaryWriter::toValue(logData->txsTags, Unversioned()) ) );
|
|
storage->set( KeyValueRef( BinaryWriter::toValue(logData->logId,Unversioned()).withPrefix(persistRecoveryCountKeys.begin), BinaryWriter::toValue(logData->recoveryCount, Unversioned()) ) );
|
|
storage->set( KeyValueRef( BinaryWriter::toValue(logData->logId,Unversioned()).withPrefix(persistProtocolVersionKeys.begin), BinaryWriter::toValue(logData->protocolVersion, Unversioned()) ) );
|
|
storage->set( KeyValueRef( BinaryWriter::toValue(logData->logId,Unversioned()).withPrefix(persistTLogSpillTypeKeys.begin), BinaryWriter::toValue(logData->logSpillType, AssumeVersion(logData->protocolVersion)) ) );
|
|
|
|
for(auto tag : logData->allTags) {
|
|
ASSERT(!logData->getTagData(tag));
|
|
logData->createTagData(tag, 0, true, true, true);
|
|
updatePersistentPopped( self, logData, logData->getTagData(tag) );
|
|
}
|
|
|
|
TraceEvent("TLogInitCommit", logData->logId);
|
|
wait( self->persistentData->commit() );
|
|
return Void();
|
|
}
|
|
|
|
ACTOR Future<Void> rejoinMasters( TLogData* self, TLogInterface tli, DBRecoveryCount recoveryCount, Future<Void> registerWithMaster, bool isPrimary ) {
|
|
state UID lastMasterID(0,0);
|
|
loop {
|
|
auto const& inf = self->dbInfo->get();
|
|
bool isDisplaced = !std::count( inf.priorCommittedLogServers.begin(), inf.priorCommittedLogServers.end(), tli.id() );
|
|
if(isPrimary) {
|
|
isDisplaced = isDisplaced && inf.recoveryCount >= recoveryCount && inf.recoveryState != RecoveryState::UNINITIALIZED;
|
|
} else {
|
|
isDisplaced = isDisplaced && ( ( inf.recoveryCount > recoveryCount && inf.recoveryState != RecoveryState::UNINITIALIZED ) || ( inf.recoveryCount == recoveryCount && inf.recoveryState == RecoveryState::FULLY_RECOVERED ) );
|
|
}
|
|
isDisplaced = isDisplaced && !inf.logSystemConfig.hasTLog(tli.id());
|
|
if (isDisplaced) {
|
|
TraceEvent("TLogDisplaced", tli.id())
|
|
.detail("Reason", "DBInfoDoesNotContain")
|
|
.detail("RecoveryCount", recoveryCount)
|
|
.detail("InfRecoveryCount", inf.recoveryCount)
|
|
.detail("RecoveryState", (int)inf.recoveryState)
|
|
.detail("LogSysConf", describe(inf.logSystemConfig.tLogs))
|
|
.detail("PriorLogs", describe(inf.priorCommittedLogServers))
|
|
.detail("OldLogGens", inf.logSystemConfig.oldTLogs.size());
|
|
if (BUGGIFY) wait( delay( SERVER_KNOBS->BUGGIFY_WORKER_REMOVED_MAX_LAG * deterministicRandom()->random01() ) );
|
|
throw worker_removed();
|
|
}
|
|
|
|
if( registerWithMaster.isReady() ) {
|
|
if ( self->dbInfo->get().master.id() != lastMasterID) {
|
|
// The TLogRejoinRequest is needed to establish communications with a new master, which doesn't have our TLogInterface
|
|
TLogRejoinRequest req(tli);
|
|
TraceEvent("TLogRejoining", tli.id()).detail("Master", self->dbInfo->get().master.id());
|
|
choose {
|
|
when(TLogRejoinReply rep =
|
|
wait(brokenPromiseToNever(self->dbInfo->get().master.tlogRejoin.getReply(req)))) {
|
|
if (rep.masterIsRecovered) lastMasterID = self->dbInfo->get().master.id();
|
|
}
|
|
when ( wait( self->dbInfo->onChange() ) ) { }
|
|
}
|
|
} else {
|
|
wait( self->dbInfo->onChange() );
|
|
}
|
|
} else {
|
|
wait( registerWithMaster || self->dbInfo->onChange() );
|
|
}
|
|
}
|
|
}
|
|
|
|
ACTOR Future<Void> respondToRecovered( TLogInterface tli, Promise<Void> recoveryComplete ) {
|
|
state bool finishedRecovery = true;
|
|
try {
|
|
wait( recoveryComplete.getFuture() );
|
|
} catch( Error &e ) {
|
|
if(e.code() != error_code_end_of_stream) {
|
|
throw;
|
|
}
|
|
finishedRecovery = false;
|
|
}
|
|
TraceEvent("TLogRespondToRecovered", tli.id()).detail("Finished", finishedRecovery);
|
|
loop {
|
|
TLogRecoveryFinishedRequest req = waitNext( tli.recoveryFinished.getFuture() );
|
|
if(finishedRecovery) {
|
|
req.reply.send(Void());
|
|
} else {
|
|
req.reply.send(Never());
|
|
}
|
|
}
|
|
}
|
|
|
|
ACTOR Future<Void> cleanupPeekTrackers( LogData* logData ) {
|
|
loop {
|
|
double minTimeUntilExpiration = SERVER_KNOBS->PEEK_TRACKER_EXPIRATION_TIME;
|
|
auto it = logData->peekTracker.begin();
|
|
while(it != logData->peekTracker.end()) {
|
|
double timeUntilExpiration = it->second.lastUpdate + SERVER_KNOBS->PEEK_TRACKER_EXPIRATION_TIME - now();
|
|
if(timeUntilExpiration < 1.0e-6) {
|
|
for(auto seq : it->second.sequence_version) {
|
|
if(!seq.second.isSet()) {
|
|
seq.second.sendError(timed_out());
|
|
}
|
|
}
|
|
it = logData->peekTracker.erase(it);
|
|
} else {
|
|
minTimeUntilExpiration = std::min(minTimeUntilExpiration, timeUntilExpiration);
|
|
++it;
|
|
}
|
|
}
|
|
|
|
wait( delay(minTimeUntilExpiration) );
|
|
}
|
|
}
|
|
|
|
void getQueuingMetrics( TLogData* self, Reference<LogData> logData, TLogQueuingMetricsRequest const& req ) {
|
|
TLogQueuingMetricsReply reply;
|
|
reply.localTime = now();
|
|
reply.instanceID = self->instanceID;
|
|
reply.bytesInput = self->bytesInput;
|
|
reply.bytesDurable = self->bytesDurable;
|
|
reply.storageBytes = self->persistentData->getStorageBytes();
|
|
//FIXME: Add the knownCommittedVersion to this message and change ratekeeper to use that version.
|
|
reply.v = logData->durableKnownCommittedVersion;
|
|
req.reply.send( reply );
|
|
}
|
|
|
|
|
|
ACTOR Future<Void>
|
|
tLogSnapCreate(TLogSnapRequest snapReq, TLogData* self, Reference<LogData> logData) {
|
|
if (self->ignorePopUid != snapReq.snapUID.toString()) {
|
|
snapReq.reply.sendError(operation_failed());
|
|
return Void();
|
|
}
|
|
ExecCmdValueString snapArg(snapReq.snapPayload);
|
|
try {
|
|
int err = wait(execHelper(&snapArg, snapReq.snapUID, self->dataFolder, snapReq.role.toString()));
|
|
|
|
std::string uidStr = snapReq.snapUID.toString();
|
|
TraceEvent("ExecTraceTLog")
|
|
.detail("Uid", uidStr)
|
|
.detail("Status", err)
|
|
.detail("Role", snapReq.role)
|
|
.detail("Value", self->dataFolder)
|
|
.detail("ExecPayload", snapReq.snapPayload)
|
|
.detail("PersistentDataVersion", logData->persistentDataVersion)
|
|
.detail("PersistentDatadurableVersion", logData->persistentDataDurableVersion)
|
|
.detail("QueueCommittedVersion", logData->queueCommittedVersion.get())
|
|
.detail("Version", logData->version.get());
|
|
|
|
if (err != 0) {
|
|
throw operation_failed();
|
|
}
|
|
snapReq.reply.send(Void());
|
|
} catch (Error& e) {
|
|
TraceEvent("TLogExecHelperError").error(e, true /*includeCancelled */);
|
|
if (e.code() != error_code_operation_cancelled) {
|
|
snapReq.reply.sendError(e);
|
|
} else {
|
|
throw e;
|
|
}
|
|
}
|
|
return Void();
|
|
}
|
|
|
|
|
|
ACTOR Future<Void>
|
|
tLogEnablePopReq(TLogEnablePopRequest enablePopReq, TLogData* self, Reference<LogData> logData) {
|
|
if (self->ignorePopUid != enablePopReq.snapUID.toString()) {
|
|
TraceEvent(SevWarn, "TLogPopDisableEnableUidMismatch")
|
|
.detail("IgnorePopUid", self->ignorePopUid)
|
|
.detail("UidStr", enablePopReq.snapUID.toString());
|
|
enablePopReq.reply.sendError(operation_failed());
|
|
return Void();
|
|
}
|
|
TraceEvent("EnableTLogPlayAllIgnoredPops2");
|
|
// use toBePopped and issue all the pops
|
|
std::map<Tag, Version>::iterator it;
|
|
state vector<Future<Void>> ignoredPops;
|
|
self->ignorePopRequest = false;
|
|
self->ignorePopDeadline = 0.0;
|
|
self->ignorePopUid = "";
|
|
for (it = self->toBePopped.begin(); it != self->toBePopped.end(); it++) {
|
|
TraceEvent("PlayIgnoredPop")
|
|
.detail("Tag", it->first.toString())
|
|
.detail("Version", it->second);
|
|
ignoredPops.push_back(tLogPopCore(self, it->first, it->second, logData));
|
|
}
|
|
TraceEvent("TLogExecCmdPopEnable")
|
|
.detail("UidStr", enablePopReq.snapUID.toString())
|
|
.detail("IgnorePopUid", self->ignorePopUid)
|
|
.detail("IgnporePopRequest", self->ignorePopRequest)
|
|
.detail("IgnporePopDeadline", self->ignorePopDeadline)
|
|
.detail("PersistentDataVersion", logData->persistentDataVersion)
|
|
.detail("PersistentDatadurableVersion", logData->persistentDataDurableVersion)
|
|
.detail("QueueCommittedVersion", logData->queueCommittedVersion.get())
|
|
.detail("Version", logData->version.get());
|
|
wait(waitForAll(ignoredPops));
|
|
self->toBePopped.clear();
|
|
enablePopReq.reply.send(Void());
|
|
return Void();
|
|
}
|
|
|
|
ACTOR Future<Void> serveTLogInterface( TLogData* self, TLogInterface tli, Reference<LogData> logData, PromiseStream<Void> warningCollectorInput ) {
|
|
state Future<Void> dbInfoChange = Void();
|
|
|
|
loop choose {
|
|
when( wait( dbInfoChange ) ) {
|
|
dbInfoChange = self->dbInfo->onChange();
|
|
bool found = false;
|
|
if(self->dbInfo->get().recoveryState >= RecoveryState::ACCEPTING_COMMITS) {
|
|
for(auto& logs : self->dbInfo->get().logSystemConfig.tLogs) {
|
|
if( std::count( logs.tLogs.begin(), logs.tLogs.end(), logData->logId ) ) {
|
|
found = true;
|
|
break;
|
|
}
|
|
}
|
|
}
|
|
if(found && self->dbInfo->get().logSystemConfig.recruitmentID == logData->recruitmentID) {
|
|
logData->logSystem->set(ILogSystem::fromServerDBInfo( self->dbgid, self->dbInfo->get() ));
|
|
if(!logData->isPrimary) {
|
|
logData->logSystem->get()->pop(logData->logRouterPoppedVersion, logData->remoteTag, logData->durableKnownCommittedVersion, logData->locality);
|
|
}
|
|
|
|
if(!logData->isPrimary && logData->stopped) {
|
|
TraceEvent("TLogAlreadyStopped", self->dbgid).detail("LogId", logData->logId);
|
|
logData->removed = logData->removed && logData->logSystem->get()->endEpoch();
|
|
}
|
|
} else {
|
|
logData->logSystem->set(Reference<ILogSystem>());
|
|
}
|
|
}
|
|
when( TLogPeekRequest req = waitNext( tli.peekMessages.getFuture() ) ) {
|
|
logData->addActor.send( tLogPeekMessages( self, req, logData ) );
|
|
}
|
|
when( TLogPopRequest req = waitNext( tli.popMessages.getFuture() ) ) {
|
|
logData->addActor.send(tLogPop(self, req, logData));
|
|
}
|
|
when( TLogCommitRequest req = waitNext( tli.commit.getFuture() ) ) {
|
|
//TraceEvent("TLogCommitReq", logData->logId).detail("Ver", req.version).detail("PrevVer", req.prevVersion).detail("LogVer", logData->version.get());
|
|
ASSERT(logData->isPrimary);
|
|
TEST(logData->stopped); // TLogCommitRequest while stopped
|
|
if (!logData->stopped)
|
|
logData->addActor.send( tLogCommit( self, req, logData, warningCollectorInput ) );
|
|
else
|
|
req.reply.sendError( tlog_stopped() );
|
|
}
|
|
when( ReplyPromise< TLogLockResult > reply = waitNext( tli.lock.getFuture() ) ) {
|
|
logData->addActor.send( tLogLock(self, reply, logData) );
|
|
}
|
|
when (TLogQueuingMetricsRequest req = waitNext(tli.getQueuingMetrics.getFuture())) {
|
|
getQueuingMetrics(self, logData, req);
|
|
}
|
|
when (TLogConfirmRunningRequest req = waitNext(tli.confirmRunning.getFuture())){
|
|
if (req.debugID.present() ) {
|
|
UID tlogDebugID = nondeterministicRandom()->randomUniqueID();
|
|
g_traceBatch.addAttach("TransactionAttachID", req.debugID.get().first(), tlogDebugID.first());
|
|
g_traceBatch.addEvent("TransactionDebug", tlogDebugID.first(), "TLogServer.TLogConfirmRunningRequest");
|
|
}
|
|
if (!logData->stopped)
|
|
req.reply.send(Void());
|
|
else
|
|
req.reply.sendError( tlog_stopped() );
|
|
}
|
|
when( TLogDisablePopRequest req = waitNext( tli.disablePopRequest.getFuture() ) ) {
|
|
if (self->ignorePopUid != "") {
|
|
TraceEvent(SevWarn, "TLogPopDisableonDisable")
|
|
.detail("IgnorePopUid", self->ignorePopUid)
|
|
.detail("UidStr", req.snapUID.toString())
|
|
.detail("PersistentDataVersion", logData->persistentDataVersion)
|
|
.detail("PersistentDatadurableVersion", logData->persistentDataDurableVersion)
|
|
.detail("QueueCommittedVersion", logData->queueCommittedVersion.get())
|
|
.detail("Version", logData->version.get());
|
|
req.reply.sendError(operation_failed());
|
|
} else {
|
|
//FIXME: As part of reverting snapshot V1, make ignorePopUid a UID instead of string
|
|
self->ignorePopRequest = true;
|
|
self->ignorePopUid = req.snapUID.toString();
|
|
self->ignorePopDeadline = g_network->now() + SERVER_KNOBS->TLOG_IGNORE_POP_AUTO_ENABLE_DELAY;
|
|
req.reply.send(Void());
|
|
}
|
|
}
|
|
when( TLogEnablePopRequest enablePopReq = waitNext( tli.enablePopRequest.getFuture() ) ) {
|
|
logData->addActor.send( tLogEnablePopReq( enablePopReq, self, logData) );
|
|
}
|
|
when( TLogSnapRequest snapReq = waitNext( tli.snapRequest.getFuture() ) ) {
|
|
logData->addActor.send( tLogSnapCreate( snapReq, self, logData) );
|
|
}
|
|
}
|
|
}
|
|
|
|
void removeLog( TLogData* self, Reference<LogData> logData ) {
|
|
TraceEvent("TLogRemoved", self->dbgid).detail("LogId", logData->logId).detail("Input", logData->bytesInput.getValue()).detail("Durable", logData->bytesDurable.getValue());
|
|
logData->stopped = true;
|
|
if(!logData->recoveryComplete.isSet()) {
|
|
logData->recoveryComplete.sendError(end_of_stream());
|
|
}
|
|
|
|
logData->addActor = PromiseStream<Future<Void>>(); //there could be items still in the promise stream if one of the actors threw an error immediately
|
|
self->id_data.erase(logData->logId);
|
|
|
|
while (self->popOrder.size() && !self->id_data.count(self->popOrder.front())) {
|
|
self->popOrder.pop_front();
|
|
}
|
|
|
|
if (self->id_data.size() == 0) {
|
|
throw worker_removed();
|
|
}
|
|
}
|
|
|
|
ACTOR Future<Void> pullAsyncData( TLogData* self, Reference<LogData> logData, std::vector<Tag> tags, Version beginVersion, Optional<Version> endVersion, bool poppedIsKnownCommitted ) {
|
|
state Future<Void> dbInfoChange = Void();
|
|
state Reference<ILogSystem::IPeekCursor> r;
|
|
state Version tagAt = beginVersion;
|
|
state Version lastVer = 0;
|
|
|
|
if (endVersion.present()) {
|
|
TraceEvent("TLogRestoreReplicationFactor", self->dbgid).detail("LogId", logData->logId).detail("Locality", logData->locality).detail("RecoverFrom", beginVersion).detail("RecoverTo", endVersion.get());
|
|
}
|
|
|
|
while (!endVersion.present() || logData->version.get() < endVersion.get()) {
|
|
loop {
|
|
choose {
|
|
when(wait( r ? r->getMore(TaskPriority::TLogCommit) : Never() ) ) {
|
|
break;
|
|
}
|
|
when( wait( dbInfoChange ) ) {
|
|
if( logData->logSystem->get() ) {
|
|
r = logData->logSystem->get()->peek( logData->logId, tagAt, endVersion, tags, true );
|
|
} else {
|
|
r = Reference<ILogSystem::IPeekCursor>();
|
|
}
|
|
dbInfoChange = logData->logSystem->onChange();
|
|
}
|
|
}
|
|
}
|
|
|
|
state double waitStartT = 0;
|
|
while( self->bytesInput - self->bytesDurable >= SERVER_KNOBS->TLOG_HARD_LIMIT_BYTES && !logData->stopped ) {
|
|
if (now() - waitStartT >= 1) {
|
|
TraceEvent(SevWarn, "TLogUpdateLag", logData->logId)
|
|
.detail("Version", logData->version.get())
|
|
.detail("PersistentDataVersion", logData->persistentDataVersion)
|
|
.detail("PersistentDataDurableVersion", logData->persistentDataDurableVersion);
|
|
waitStartT = now();
|
|
}
|
|
wait( delayJittered(.005, TaskPriority::TLogCommit) );
|
|
}
|
|
|
|
state Version ver = 0;
|
|
state std::vector<TagsAndMessage> messages;
|
|
loop {
|
|
state bool foundMessage = r->hasMessage();
|
|
if (!foundMessage || r->version().version != ver) {
|
|
ASSERT(r->version().version > lastVer);
|
|
if (ver) {
|
|
if(logData->stopped || (endVersion.present() && ver > endVersion.get())) {
|
|
return Void();
|
|
}
|
|
|
|
if(poppedIsKnownCommitted) {
|
|
logData->knownCommittedVersion = std::max(logData->knownCommittedVersion, r->popped());
|
|
logData->minKnownCommittedVersion = std::max(logData->minKnownCommittedVersion, r->getMinKnownCommittedVersion());
|
|
}
|
|
|
|
commitMessages(self, logData, ver, messages);
|
|
|
|
if(self->terminated.isSet()) {
|
|
return Void();
|
|
}
|
|
|
|
// Log the changes to the persistent queue, to be committed by commitQueue()
|
|
AlternativeTLogQueueEntryRef qe;
|
|
qe.version = ver;
|
|
qe.knownCommittedVersion = logData->knownCommittedVersion;
|
|
qe.alternativeMessages = &messages;
|
|
qe.id = logData->logId;
|
|
self->persistentQueue->push( qe, logData );
|
|
|
|
self->diskQueueCommitBytes += qe.expectedSize();
|
|
if( self->diskQueueCommitBytes > SERVER_KNOBS->MAX_QUEUE_COMMIT_BYTES ) {
|
|
self->largeDiskQueueCommitBytes.set(true);
|
|
}
|
|
|
|
// Notifies the commitQueue actor to commit persistentQueue, and also unblocks tLogPeekMessages actors
|
|
logData->version.set( ver );
|
|
wait( yield(TaskPriority::TLogCommit) );
|
|
}
|
|
lastVer = ver;
|
|
ver = r->version().version;
|
|
messages.clear();
|
|
|
|
if (!foundMessage) {
|
|
ver--;
|
|
if(ver > logData->version.get()) {
|
|
if(logData->stopped || (endVersion.present() && ver > endVersion.get())) {
|
|
return Void();
|
|
}
|
|
|
|
if(poppedIsKnownCommitted) {
|
|
logData->knownCommittedVersion = std::max(logData->knownCommittedVersion, r->popped());
|
|
logData->minKnownCommittedVersion = std::max(logData->minKnownCommittedVersion, r->getMinKnownCommittedVersion());
|
|
}
|
|
|
|
if(self->terminated.isSet()) {
|
|
return Void();
|
|
}
|
|
|
|
// Log the changes to the persistent queue, to be committed by commitQueue()
|
|
TLogQueueEntryRef qe;
|
|
qe.version = ver;
|
|
qe.knownCommittedVersion = logData->knownCommittedVersion;
|
|
qe.messages = StringRef();
|
|
qe.id = logData->logId;
|
|
self->persistentQueue->push( qe, logData );
|
|
|
|
self->diskQueueCommitBytes += qe.expectedSize();
|
|
if( self->diskQueueCommitBytes > SERVER_KNOBS->MAX_QUEUE_COMMIT_BYTES ) {
|
|
self->largeDiskQueueCommitBytes.set(true);
|
|
}
|
|
|
|
// Notifies the commitQueue actor to commit persistentQueue, and also unblocks tLogPeekMessages actors
|
|
logData->version.set( ver );
|
|
wait( yield(TaskPriority::TLogCommit) );
|
|
}
|
|
break;
|
|
}
|
|
}
|
|
|
|
messages.emplace_back(r->getMessageWithTags(), r->getTags());
|
|
r->nextMessage();
|
|
}
|
|
|
|
tagAt = std::max( r->version().version, logData->version.get() + 1 );
|
|
}
|
|
return Void();
|
|
}
|
|
|
|
ACTOR Future<Void> tLogCore( TLogData* self, Reference<LogData> logData, TLogInterface tli, bool pulledRecoveryVersions ) {
|
|
if(logData->removed.isReady()) {
|
|
wait(delay(0)); //to avoid iterator invalidation in restorePersistentState when removed is already ready
|
|
ASSERT(logData->removed.isError());
|
|
|
|
if(logData->removed.getError().code() != error_code_worker_removed) {
|
|
throw logData->removed.getError();
|
|
}
|
|
|
|
removeLog(self, logData);
|
|
return Void();
|
|
}
|
|
|
|
state PromiseStream<Void> warningCollectorInput;
|
|
state Future<Void> warningCollector = timeoutWarningCollector( warningCollectorInput.getFuture(), 1.0, "TLogQueueCommitSlow", self->dbgid );
|
|
state Future<Void> error = actorCollection( logData->addActor.getFuture() );
|
|
|
|
logData->addActor.send( waitFailureServer( tli.waitFailure.getFuture()) );
|
|
logData->addActor.send( logData->removed );
|
|
//FIXME: update tlogMetrics to include new information, or possibly only have one copy for the shared instance
|
|
logData->addActor.send( traceCounters("TLogMetrics", logData->logId, SERVER_KNOBS->STORAGE_LOGGING_DELAY, &logData->cc, logData->logId.toString() + "/TLogMetrics"));
|
|
logData->addActor.send( serveTLogInterface(self, tli, logData, warningCollectorInput) );
|
|
logData->addActor.send( cleanupPeekTrackers(logData.getPtr()) );
|
|
|
|
if(!logData->isPrimary) {
|
|
std::vector<Tag> tags;
|
|
tags.push_back(logData->remoteTag);
|
|
logData->addActor.send( pullAsyncData(self, logData, tags, pulledRecoveryVersions ? logData->recoveredAt + 1 : logData->unrecoveredBefore, Optional<Version>(), true) );
|
|
}
|
|
|
|
try {
|
|
wait( error );
|
|
throw internal_error();
|
|
} catch( Error &e ) {
|
|
if( e.code() != error_code_worker_removed )
|
|
throw;
|
|
|
|
removeLog(self, logData);
|
|
return Void();
|
|
}
|
|
}
|
|
|
|
ACTOR Future<Void> checkEmptyQueue(TLogData* self) {
|
|
TraceEvent("TLogCheckEmptyQueueBegin", self->dbgid);
|
|
try {
|
|
bool recoveryFinished = wait( self->persistentQueue->initializeRecovery(0) );
|
|
if (recoveryFinished)
|
|
return Void();
|
|
TLogQueueEntry r = wait( self->persistentQueue->readNext(self) );
|
|
throw internal_error();
|
|
} catch (Error& e) {
|
|
if (e.code() != error_code_end_of_stream) throw;
|
|
TraceEvent("TLogCheckEmptyQueueEnd", self->dbgid);
|
|
return Void();
|
|
}
|
|
}
|
|
|
|
ACTOR Future<Void> checkRecovered(TLogData* self) {
|
|
TraceEvent("TLogCheckRecoveredBegin", self->dbgid);
|
|
Optional<Value> v = wait( self->persistentData->readValue(StringRef()) );
|
|
TraceEvent("TLogCheckRecoveredEnd", self->dbgid);
|
|
return Void();
|
|
}
|
|
|
|
// Recovery persistent state of tLog from disk
|
|
ACTOR Future<Void> restorePersistentState( TLogData* self, LocalityData locality, Promise<Void> oldLog, Promise<Void> recovered, PromiseStream<InitializeTLogRequest> tlogRequests ) {
|
|
state double startt = now();
|
|
state Reference<LogData> logData;
|
|
state KeyRange tagKeys;
|
|
// PERSIST: Read basic state from persistentData; replay persistentQueue but don't erase it
|
|
|
|
TraceEvent("TLogRestorePersistentState", self->dbgid);
|
|
|
|
state IKeyValueStore *storage = self->persistentData;
|
|
wait(storage->init());
|
|
state Future<Optional<Value>> fFormat = storage->readValue(persistFormat.key);
|
|
state Future<Optional<Value>> fRecoveryLocation = storage->readValue(persistRecoveryLocationKey);
|
|
state Future<Standalone<RangeResultRef>> fVers = storage->readRange(persistCurrentVersionKeys);
|
|
state Future<Standalone<RangeResultRef>> fKnownCommitted = storage->readRange(persistKnownCommittedVersionKeys);
|
|
state Future<Standalone<RangeResultRef>> fLocality = storage->readRange(persistLocalityKeys);
|
|
state Future<Standalone<RangeResultRef>> fLogRouterTags = storage->readRange(persistLogRouterTagsKeys);
|
|
state Future<Standalone<RangeResultRef>> fTxsTags = storage->readRange(persistTxsTagsKeys);
|
|
state Future<Standalone<RangeResultRef>> fRecoverCounts = storage->readRange(persistRecoveryCountKeys);
|
|
state Future<Standalone<RangeResultRef>> fProtocolVersions = storage->readRange(persistProtocolVersionKeys);
|
|
state Future<Standalone<RangeResultRef>> fTLogSpillTypes = storage->readRange(persistTLogSpillTypeKeys);
|
|
|
|
// FIXME: metadata in queue?
|
|
|
|
wait( waitForAll( std::vector{fFormat, fRecoveryLocation} ) );
|
|
wait( waitForAll( std::vector{fVers, fKnownCommitted, fLocality, fLogRouterTags, fTxsTags, fRecoverCounts, fProtocolVersions, fTLogSpillTypes} ) );
|
|
|
|
if (fFormat.get().present() && !persistFormatReadableRange.contains( fFormat.get().get() )) {
|
|
//FIXME: remove when we no longer need to test upgrades from 4.X releases
|
|
if(g_network->isSimulated()) {
|
|
TraceEvent("ElapsedTime").detail("SimTime", now()).detail("RealTime", 0).detail("RandomUnseed", 0);
|
|
flushAndExit(0);
|
|
}
|
|
|
|
TraceEvent(SevError, "UnsupportedDBFormat", self->dbgid).detail("Format", fFormat.get().get()).detail("Expected", persistFormat.value.toString());
|
|
throw worker_recovery_failed();
|
|
}
|
|
|
|
if (!fFormat.get().present()) {
|
|
Standalone<RangeResultRef> v = wait( self->persistentData->readRange( KeyRangeRef(StringRef(), LiteralStringRef("\xff")), 1 ) );
|
|
if (!v.size()) {
|
|
TEST(true); // The DB is completely empty, so it was never initialized. Delete it.
|
|
throw worker_removed();
|
|
} else {
|
|
// This should never happen
|
|
TraceEvent(SevError, "NoDBFormatKey", self->dbgid).detail("FirstKey", v[0].key);
|
|
ASSERT( false );
|
|
throw worker_recovery_failed();
|
|
}
|
|
}
|
|
|
|
state std::vector<Future<ErrorOr<Void>>> removed;
|
|
|
|
ASSERT(fFormat.get().get() == LiteralStringRef("FoundationDB/LogServer/3/0"));
|
|
|
|
ASSERT(fVers.get().size() == fRecoverCounts.get().size());
|
|
|
|
state std::map<UID, int8_t> id_locality;
|
|
for(auto it : fLocality.get()) {
|
|
id_locality[ BinaryReader::fromStringRef<UID>(it.key.removePrefix(persistLocalityKeys.begin), Unversioned())] = BinaryReader::fromStringRef<int8_t>( it.value, Unversioned() );
|
|
}
|
|
|
|
state std::map<UID, int> id_logRouterTags;
|
|
for(auto it : fLogRouterTags.get()) {
|
|
id_logRouterTags[ BinaryReader::fromStringRef<UID>(it.key.removePrefix(persistLogRouterTagsKeys.begin), Unversioned())] = BinaryReader::fromStringRef<int>( it.value, Unversioned() );
|
|
}
|
|
|
|
state std::map<UID, int> id_txsTags;
|
|
for(auto it : fTxsTags.get()) {
|
|
id_txsTags[ BinaryReader::fromStringRef<UID>(it.key.removePrefix(persistTxsTagsKeys.begin), Unversioned())] = BinaryReader::fromStringRef<int>( it.value, Unversioned() );
|
|
}
|
|
|
|
state std::map<UID, Version> id_knownCommitted;
|
|
for(auto it : fKnownCommitted.get()) {
|
|
id_knownCommitted[ BinaryReader::fromStringRef<UID>(it.key.removePrefix(persistKnownCommittedVersionKeys.begin), Unversioned())] = BinaryReader::fromStringRef<Version>( it.value, Unversioned() );
|
|
}
|
|
|
|
state IDiskQueue::location minimumRecoveryLocation = 0;
|
|
if (fRecoveryLocation.get().present()) {
|
|
minimumRecoveryLocation = BinaryReader::fromStringRef<IDiskQueue::location>(fRecoveryLocation.get().get(), Unversioned());
|
|
}
|
|
|
|
state int idx = 0;
|
|
state Promise<Void> registerWithMaster;
|
|
state std::map<UID, TLogInterface> id_interf;
|
|
state std::vector<std::pair<Version, UID>> logsByVersion;
|
|
for(idx = 0; idx < fVers.get().size(); idx++) {
|
|
state KeyRef rawId = fVers.get()[idx].key.removePrefix(persistCurrentVersionKeys.begin);
|
|
UID id1 = BinaryReader::fromStringRef<UID>( rawId, Unversioned() );
|
|
UID id2 = BinaryReader::fromStringRef<UID>( fRecoverCounts.get()[idx].key.removePrefix(persistRecoveryCountKeys.begin), Unversioned() );
|
|
ASSERT(id1 == id2);
|
|
|
|
TLogInterface recruited(id1, self->dbgid, locality);
|
|
recruited.initEndpoints();
|
|
|
|
DUMPTOKEN( recruited.peekMessages );
|
|
DUMPTOKEN( recruited.popMessages );
|
|
DUMPTOKEN( recruited.commit );
|
|
DUMPTOKEN( recruited.lock );
|
|
DUMPTOKEN( recruited.getQueuingMetrics );
|
|
DUMPTOKEN( recruited.confirmRunning );
|
|
|
|
ProtocolVersion protocolVersion = BinaryReader::fromStringRef<ProtocolVersion>( fProtocolVersions.get()[idx].value, Unversioned() );
|
|
TLogSpillType logSpillType = BinaryReader::fromStringRef<TLogSpillType>( fTLogSpillTypes.get()[idx].value, AssumeVersion(protocolVersion) );
|
|
|
|
//We do not need the remoteTag, because we will not be loading any additional data
|
|
logData = Reference<LogData>( new LogData(self, recruited, Tag(), true, id_logRouterTags[id1], id_txsTags[id1], UID(), protocolVersion, logSpillType, std::vector<Tag>(), "Restored") );
|
|
logData->locality = id_locality[id1];
|
|
logData->stopped = true;
|
|
self->id_data[id1] = logData;
|
|
id_interf[id1] = recruited;
|
|
|
|
logData->knownCommittedVersion = id_knownCommitted[id1];
|
|
Version ver = BinaryReader::fromStringRef<Version>( fVers.get()[idx].value, Unversioned() );
|
|
logData->persistentDataVersion = ver;
|
|
logData->persistentDataDurableVersion = ver;
|
|
logData->version.set(ver);
|
|
logData->recoveryCount = BinaryReader::fromStringRef<DBRecoveryCount>( fRecoverCounts.get()[idx].value, Unversioned() );
|
|
logData->removed = rejoinMasters(self, recruited, logData->recoveryCount, registerWithMaster.getFuture(), false);
|
|
removed.push_back(errorOr(logData->removed));
|
|
logsByVersion.emplace_back(ver, id1);
|
|
|
|
TraceEvent("TLogPersistentStateRestore", self->dbgid).detail("LogId", logData->logId).detail("Ver", ver);
|
|
// Restore popped keys. Pop operations that took place after the last (committed) updatePersistentDataVersion might be lost, but
|
|
// that is fine because we will get the corresponding data back, too.
|
|
tagKeys = prefixRange( rawId.withPrefix(persistTagPoppedKeys.begin) );
|
|
loop {
|
|
if(logData->removed.isReady()) break;
|
|
Standalone<RangeResultRef> data = wait( self->persistentData->readRange( tagKeys, BUGGIFY ? 3 : 1<<30, 1<<20 ) );
|
|
if (!data.size()) break;
|
|
((KeyRangeRef&)tagKeys) = KeyRangeRef( keyAfter(data.back().key, tagKeys.arena()), tagKeys.end );
|
|
|
|
for(auto &kv : data) {
|
|
Tag tag = decodeTagPoppedKey(rawId, kv.key);
|
|
Version popped = decodeTagPoppedValue(kv.value);
|
|
TraceEvent("TLogRestorePopped", logData->logId).detail("Tag", tag.toString()).detail("To", popped);
|
|
auto tagData = logData->getTagData(tag);
|
|
ASSERT( !tagData );
|
|
logData->createTagData(tag, popped, false, false, false);
|
|
logData->getTagData(tag)->persistentPopped = popped;
|
|
}
|
|
}
|
|
}
|
|
|
|
std::sort(logsByVersion.begin(), logsByVersion.end());
|
|
for (const auto& pair : logsByVersion) {
|
|
// TLogs that have been fully spilled won't have queue entries read in the loop below.
|
|
self->popOrder.push_back(pair.second);
|
|
}
|
|
logsByVersion.clear();
|
|
|
|
state Future<Void> allRemoved = waitForAll(removed);
|
|
state UID lastId = UID(1,1); //initialized so it will not compare equal to a default UID
|
|
state double recoverMemoryLimit = SERVER_KNOBS->TLOG_RECOVER_MEMORY_LIMIT;
|
|
if (BUGGIFY) recoverMemoryLimit = std::max<double>(
|
|
SERVER_KNOBS->BUGGIFY_RECOVER_MEMORY_LIMIT,
|
|
(double)SERVER_KNOBS->TLOG_SPILL_THRESHOLD);
|
|
|
|
try {
|
|
bool recoveryFinished = wait( self->persistentQueue->initializeRecovery(minimumRecoveryLocation) );
|
|
if (recoveryFinished)
|
|
throw end_of_stream();
|
|
loop {
|
|
if(allRemoved.isReady()) {
|
|
TEST(true); //all tlogs removed during queue recovery
|
|
throw worker_removed();
|
|
}
|
|
choose {
|
|
when( TLogQueueEntry qe = wait( self->persistentQueue->readNext(self) ) ) {
|
|
if(qe.id != lastId) {
|
|
lastId = qe.id;
|
|
auto it = self->id_data.find(qe.id);
|
|
if(it != self->id_data.end()) {
|
|
logData = it->second;
|
|
} else {
|
|
logData = Reference<LogData>();
|
|
}
|
|
}
|
|
|
|
//TraceEvent("TLogRecoveredQE", self->dbgid).detail("LogId", qe.id).detail("Ver", qe.version).detail("MessageBytes", qe.messages.size()).detail("Tags", qe.tags.size())
|
|
// .detail("Tag0", qe.tags.size() ? qe.tags[0].tag : invalidTag).detail("Version", logData->version.get());
|
|
|
|
if(logData) {
|
|
if(!self->spillOrder.size() || self->spillOrder.back() != qe.id) {
|
|
self->spillOrder.push_back(qe.id);
|
|
}
|
|
logData->knownCommittedVersion = std::max(logData->knownCommittedVersion, qe.knownCommittedVersion);
|
|
if( qe.version > logData->version.get() ) {
|
|
commitMessages(self, logData, qe.version, qe.arena(), qe.messages);
|
|
logData->version.set( qe.version );
|
|
logData->queueCommittedVersion.set( qe.version );
|
|
|
|
while (self->bytesInput - self->bytesDurable >= recoverMemoryLimit) {
|
|
TEST(true); // Flush excess data during TLog queue recovery
|
|
TraceEvent("FlushLargeQueueDuringRecovery", self->dbgid).detail("LogId", logData->logId).detail("BytesInput", self->bytesInput).detail("BytesDurable", self->bytesDurable).detail("Version", logData->version.get()).detail("PVer", logData->persistentDataVersion);
|
|
|
|
choose {
|
|
when( wait( updateStorage(self) ) ) {}
|
|
when( wait( allRemoved ) ) { throw worker_removed(); }
|
|
}
|
|
}
|
|
} else {
|
|
// Updating persistRecoveryLocation and persistCurrentVersion at the same time,
|
|
// transactionally, should mean that we never read any TLogQueueEntry that has already
|
|
// been spilled.
|
|
ASSERT_WE_THINK(qe.version == logData->version.get());
|
|
}
|
|
}
|
|
}
|
|
when( wait( allRemoved ) ) { throw worker_removed(); }
|
|
}
|
|
}
|
|
} catch (Error& e) {
|
|
if (e.code() != error_code_end_of_stream) throw;
|
|
}
|
|
|
|
TraceEvent("TLogRestorePersistentStateDone", self->dbgid).detail("Took", now()-startt);
|
|
TEST( now()-startt >= 1.0 ); // TLog recovery took more than 1 second
|
|
|
|
for(auto it : self->id_data) {
|
|
if(it.second->queueCommittedVersion.get() == 0) {
|
|
TraceEvent("TLogZeroVersion", self->dbgid).detail("LogId", it.first);
|
|
it.second->queueCommittedVersion.set(it.second->version.get());
|
|
}
|
|
it.second->recoveryComplete.sendError(end_of_stream());
|
|
self->sharedActors.send( tLogCore( self, it.second, id_interf[it.first], false ) );
|
|
}
|
|
|
|
if(registerWithMaster.canBeSet()) registerWithMaster.send(Void());
|
|
return Void();
|
|
}
|
|
|
|
bool tlogTerminated( TLogData* self, IKeyValueStore* persistentData, TLogQueue* persistentQueue, Error const& e ) {
|
|
// Dispose the IKVS (destroying its data permanently) only if this shutdown is definitely permanent. Otherwise just close it.
|
|
if (e.code() == error_code_worker_removed || e.code() == error_code_recruitment_failed) {
|
|
persistentData->dispose();
|
|
persistentQueue->dispose();
|
|
} else {
|
|
persistentData->close();
|
|
persistentQueue->close();
|
|
}
|
|
|
|
if ( e.code() == error_code_worker_removed ||
|
|
e.code() == error_code_recruitment_failed ||
|
|
e.code() == error_code_file_not_found )
|
|
{
|
|
TraceEvent("TLogTerminated", self->dbgid).error(e, true);
|
|
return true;
|
|
} else
|
|
return false;
|
|
}
|
|
|
|
ACTOR Future<Void> updateLogSystem(TLogData* self, Reference<LogData> logData, LogSystemConfig recoverFrom, Reference<AsyncVar<Reference<ILogSystem>>> logSystem) {
|
|
loop {
|
|
bool found = self->dbInfo->get().logSystemConfig.recruitmentID == logData->recruitmentID;
|
|
if (found) {
|
|
if (self->dbInfo->get().logSystemConfig.isNextGenerationOf(recoverFrom)) {
|
|
logSystem->set(ILogSystem::fromOldLogSystemConfig( logData->logId, self->dbInfo->get().myLocality, self->dbInfo->get().logSystemConfig ));
|
|
} else if (self->dbInfo->get().logSystemConfig.isEqualIds(recoverFrom)) {
|
|
logSystem->set(ILogSystem::fromLogSystemConfig( logData->logId, self->dbInfo->get().myLocality, self->dbInfo->get().logSystemConfig, false, true ));
|
|
} else if (self->dbInfo->get().recoveryState >= RecoveryState::ACCEPTING_COMMITS) {
|
|
logSystem->set(ILogSystem::fromLogSystemConfig( logData->logId, self->dbInfo->get().myLocality, self->dbInfo->get().logSystemConfig, true ));
|
|
} else {
|
|
found = false;
|
|
}
|
|
}
|
|
if (!found) {
|
|
logSystem->set(Reference<ILogSystem>());
|
|
} else {
|
|
logData->logSystem->get()->pop(logData->logRouterPoppedVersion, logData->remoteTag, logData->durableKnownCommittedVersion, logData->locality);
|
|
}
|
|
TraceEvent("TLogUpdate", self->dbgid).detail("LogId", logData->logId).detail("RecruitmentID", logData->recruitmentID).detail("DbRecruitmentID", self->dbInfo->get().logSystemConfig.recruitmentID).detail("RecoverFrom", recoverFrom.toString()).detail("DbInfo", self->dbInfo->get().logSystemConfig.toString()).detail("Found", found).detail("LogSystem", (bool) logSystem->get() ).detail("RecoveryState", (int)self->dbInfo->get().recoveryState);
|
|
for (const auto& it : self->dbInfo->get().logSystemConfig.oldTLogs) {
|
|
TraceEvent("TLogUpdateOld", self->dbgid).detail("LogId", logData->logId).detail("DbInfo", it.toString());
|
|
}
|
|
wait( self->dbInfo->onChange() );
|
|
}
|
|
}
|
|
|
|
void stopAllTLogs( TLogData* self, UID newLogId ) {
|
|
for(auto it : self->id_data) {
|
|
if( !it.second->stopped ) {
|
|
TraceEvent("TLogStoppedByNewRecruitment", self->dbgid).detail("LogId", it.second->logId).detail("StoppedId", it.first.toString()).detail("RecruitedId", newLogId).detail("EndEpoch", it.second->logSystem->get().getPtr() != 0);
|
|
if(!it.second->isPrimary && it.second->logSystem->get()) {
|
|
it.second->removed = it.second->removed && it.second->logSystem->get()->endEpoch();
|
|
}
|
|
if(it.second->committingQueue.canBeSet()) {
|
|
it.second->committingQueue.sendError(worker_removed());
|
|
}
|
|
}
|
|
it.second->stopped = true;
|
|
if(!it.second->recoveryComplete.isSet()) {
|
|
it.second->recoveryComplete.sendError(end_of_stream());
|
|
}
|
|
it.second->stopCommit.trigger();
|
|
}
|
|
}
|
|
|
|
// Start the tLog role for a worker
|
|
ACTOR Future<Void> tLogStart( TLogData* self, InitializeTLogRequest req, LocalityData locality ) {
|
|
state TLogInterface recruited(self->dbgid, locality);
|
|
recruited.initEndpoints();
|
|
|
|
DUMPTOKEN( recruited.peekMessages );
|
|
DUMPTOKEN( recruited.popMessages );
|
|
DUMPTOKEN( recruited.commit );
|
|
DUMPTOKEN( recruited.lock );
|
|
DUMPTOKEN( recruited.getQueuingMetrics );
|
|
DUMPTOKEN( recruited.confirmRunning );
|
|
|
|
stopAllTLogs(self, recruited.id());
|
|
|
|
bool recovering = (req.recoverFrom.logSystemType == LogSystemType::tagPartitioned);
|
|
state Reference<LogData> logData = Reference<LogData>( new LogData(self, recruited, req.remoteTag, req.isPrimary, req.logRouterTags, req.txsTags, req.recruitmentID, currentProtocolVersion, req.spillType, req.allTags, recovering ? "Recovered" : "Recruited") );
|
|
self->id_data[recruited.id()] = logData;
|
|
logData->locality = req.locality;
|
|
logData->recoveryCount = req.epoch;
|
|
logData->removed = rejoinMasters(self, recruited, req.epoch, Future<Void>(Void()), req.isPrimary);
|
|
self->popOrder.push_back(recruited.id());
|
|
self->spillOrder.push_back(recruited.id());
|
|
|
|
TraceEvent("TLogStart", logData->logId);
|
|
|
|
state Future<Void> updater;
|
|
state bool pulledRecoveryVersions = false;
|
|
try {
|
|
if( logData->removed.isReady() ) {
|
|
throw logData->removed.getError();
|
|
}
|
|
|
|
if (recovering) {
|
|
logData->unrecoveredBefore = req.startVersion;
|
|
logData->recoveredAt = req.recoverAt;
|
|
logData->knownCommittedVersion = req.startVersion - 1;
|
|
logData->persistentDataVersion = logData->unrecoveredBefore - 1;
|
|
logData->persistentDataDurableVersion = logData->unrecoveredBefore - 1;
|
|
logData->queueCommittedVersion.set( logData->unrecoveredBefore - 1 );
|
|
logData->version.set( logData->unrecoveredBefore - 1 );
|
|
|
|
logData->unpoppedRecoveredTags = req.allTags.size();
|
|
wait( initPersistentState( self, logData ) || logData->removed );
|
|
|
|
TraceEvent("TLogRecover", self->dbgid).detail("LogId", logData->logId).detail("At", req.recoverAt).detail("Known", req.knownCommittedVersion).detail("Unrecovered", logData->unrecoveredBefore).detail("Tags", describe(req.recoverTags)).detail("Locality", req.locality).detail("LogRouterTags", logData->logRouterTags);
|
|
|
|
if(logData->recoveryComplete.isSet()) {
|
|
throw worker_removed();
|
|
}
|
|
|
|
updater = updateLogSystem(self, logData, req.recoverFrom, logData->logSystem);
|
|
|
|
logData->initialized = true;
|
|
self->newLogData.trigger();
|
|
|
|
if((req.isPrimary || req.recoverFrom.logRouterTags == 0) && !logData->stopped && logData->unrecoveredBefore <= req.recoverAt) {
|
|
if(req.recoverFrom.logRouterTags > 0 && req.locality != tagLocalitySatellite) {
|
|
logData->logRouterPopToVersion = req.recoverAt;
|
|
std::vector<Tag> tags;
|
|
tags.push_back(logData->remoteTag);
|
|
wait(pullAsyncData(self, logData, tags, logData->unrecoveredBefore, req.recoverAt, true) || logData->removed);
|
|
} else if(!req.recoverTags.empty()) {
|
|
ASSERT(logData->unrecoveredBefore > req.knownCommittedVersion);
|
|
wait(pullAsyncData(self, logData, req.recoverTags, req.knownCommittedVersion + 1, req.recoverAt, false) || logData->removed);
|
|
}
|
|
pulledRecoveryVersions = true;
|
|
logData->knownCommittedVersion = req.recoverAt;
|
|
}
|
|
|
|
if((req.isPrimary || req.recoverFrom.logRouterTags == 0) && logData->version.get() < req.recoverAt && !logData->stopped) {
|
|
// Log the changes to the persistent queue, to be committed by commitQueue()
|
|
TLogQueueEntryRef qe;
|
|
qe.version = req.recoverAt;
|
|
qe.knownCommittedVersion = logData->knownCommittedVersion;
|
|
qe.messages = StringRef();
|
|
qe.id = logData->logId;
|
|
self->persistentQueue->push( qe, logData );
|
|
|
|
self->diskQueueCommitBytes += qe.expectedSize();
|
|
if( self->diskQueueCommitBytes > SERVER_KNOBS->MAX_QUEUE_COMMIT_BYTES ) {
|
|
self->largeDiskQueueCommitBytes.set(true);
|
|
}
|
|
|
|
logData->version.set( req.recoverAt );
|
|
}
|
|
|
|
if(logData->recoveryComplete.isSet()) {
|
|
throw worker_removed();
|
|
}
|
|
|
|
logData->addActor.send( respondToRecovered( recruited, logData->recoveryComplete ) );
|
|
} else {
|
|
// Brand new tlog, initialization has already been done by caller
|
|
wait( initPersistentState( self, logData ) || logData->removed );
|
|
|
|
if(logData->recoveryComplete.isSet()) {
|
|
throw worker_removed();
|
|
}
|
|
|
|
logData->initialized = true;
|
|
self->newLogData.trigger();
|
|
|
|
logData->recoveryComplete.send(Void());
|
|
}
|
|
wait(logData->committingQueue.getFuture() || logData->removed );
|
|
} catch( Error &e ) {
|
|
req.reply.sendError(recruitment_failed());
|
|
|
|
if( e.code() != error_code_worker_removed ) {
|
|
throw;
|
|
}
|
|
|
|
wait( delay(0.0) ); // if multiple recruitment requests were already in the promise stream make sure they are all started before any are removed
|
|
|
|
removeLog(self, logData);
|
|
return Void();
|
|
}
|
|
|
|
req.reply.send( recruited );
|
|
|
|
TraceEvent("TLogReady", logData->logId).detail("AllTags", describe(req.allTags)).detail("Locality", logData->locality);
|
|
|
|
updater = Void();
|
|
wait( tLogCore( self, logData, recruited, pulledRecoveryVersions ) );
|
|
return Void();
|
|
}
|
|
|
|
ACTOR Future<Void> startSpillingInTenSeconds(TLogData* self, UID tlogId, Reference<AsyncVar<UID>> activeSharedTLog) {
|
|
wait(delay(10));
|
|
if (activeSharedTLog->get() != tlogId) {
|
|
// TODO: This should fully spill, but currently doing so will cause us to no longer update poppedVersion
|
|
// and QuietDatabase will hang thinking our TLog is behind.
|
|
TraceEvent("SharedTLogBeginSpilling", self->dbgid).detail("NowActive", activeSharedTLog->get());
|
|
self->targetVolatileBytes = SERVER_KNOBS->REFERENCE_SPILL_UPDATE_STORAGE_BYTE_LIMIT * 2;
|
|
} else {
|
|
TraceEvent("SharedTLogSkipSpilling", self->dbgid).detail("NowActive", activeSharedTLog->get());
|
|
}
|
|
return Void();
|
|
}
|
|
|
|
// New tLog (if !recoverFrom.size()) or restore from network
|
|
ACTOR Future<Void> tLog( IKeyValueStore* persistentData, IDiskQueue* persistentQueue, Reference<AsyncVar<ServerDBInfo>> db, LocalityData locality, PromiseStream<InitializeTLogRequest> tlogRequests, UID tlogId, UID workerID, bool restoreFromDisk, Promise<Void> oldLog, Promise<Void> recovered, std::string folder, Reference<AsyncVar<bool>> degraded, Reference<AsyncVar<UID>> activeSharedTLog ) {
|
|
state TLogData self( tlogId, workerID, persistentData, persistentQueue, db, degraded, folder );
|
|
state Future<Void> error = actorCollection( self.sharedActors.getFuture() );
|
|
|
|
TraceEvent("SharedTlog", tlogId);
|
|
try {
|
|
if(restoreFromDisk) {
|
|
wait( restorePersistentState( &self, locality, oldLog, recovered, tlogRequests ) );
|
|
} else {
|
|
wait( checkEmptyQueue(&self) && checkRecovered(&self) );
|
|
}
|
|
|
|
//Disk errors need a chance to kill this actor.
|
|
wait(delay(0.000001));
|
|
|
|
if(recovered.canBeSet()) recovered.send(Void());
|
|
|
|
self.sharedActors.send( commitQueue(&self) );
|
|
self.sharedActors.send( updateStorageLoop(&self) );
|
|
state Future<Void> activeSharedChange = Void();
|
|
|
|
loop {
|
|
choose {
|
|
when ( InitializeTLogRequest req = waitNext(tlogRequests.getFuture() ) ) {
|
|
if( !self.tlogCache.exists( req.recruitmentID ) ) {
|
|
self.tlogCache.set( req.recruitmentID, req.reply.getFuture() );
|
|
self.sharedActors.send( self.tlogCache.removeOnReady( req.recruitmentID, tLogStart( &self, req, locality ) ) );
|
|
} else {
|
|
forwardPromise( req.reply, self.tlogCache.get( req.recruitmentID ) );
|
|
}
|
|
}
|
|
when ( wait( error ) ) { throw internal_error(); }
|
|
when ( wait( activeSharedChange ) ) {
|
|
if (activeSharedTLog->get() == tlogId) {
|
|
TraceEvent("SharedTLogNowActive", self.dbgid).detail("NowActive", activeSharedTLog->get());
|
|
self.targetVolatileBytes = SERVER_KNOBS->TLOG_SPILL_THRESHOLD;
|
|
} else {
|
|
stopAllTLogs(&self, tlogId);
|
|
TraceEvent("SharedTLogQueueSpilling", self.dbgid).detail("NowActive", activeSharedTLog->get());
|
|
self.sharedActors.send( startSpillingInTenSeconds(&self, tlogId, activeSharedTLog) );
|
|
}
|
|
activeSharedChange = activeSharedTLog->onChange();
|
|
}
|
|
}
|
|
}
|
|
} catch (Error& e) {
|
|
self.terminated.send(Void());
|
|
TraceEvent("TLogError", tlogId).error(e, true);
|
|
if(recovered.canBeSet()) recovered.send(Void());
|
|
|
|
while(!tlogRequests.isEmpty()) {
|
|
tlogRequests.getFuture().pop().reply.sendError(recruitment_failed());
|
|
}
|
|
|
|
for( auto& it : self.id_data ) {
|
|
if(!it.second->recoveryComplete.isSet()) {
|
|
it.second->recoveryComplete.sendError(end_of_stream());
|
|
}
|
|
}
|
|
|
|
if (tlogTerminated( &self, persistentData, self.persistentQueue, e )) {
|
|
return Void();
|
|
} else {
|
|
throw;
|
|
}
|
|
}
|
|
}
|
|
|
|
// UNIT TESTS
|
|
struct DequeAllocatorStats {
|
|
static int64_t allocatedBytes;
|
|
};
|
|
|
|
int64_t DequeAllocatorStats::allocatedBytes = 0;
|
|
|
|
template <class T>
|
|
struct DequeAllocator : std::allocator<T> {
|
|
template<typename U>
|
|
struct rebind {
|
|
typedef DequeAllocator<U> other;
|
|
};
|
|
|
|
DequeAllocator() {}
|
|
|
|
template<typename U>
|
|
DequeAllocator(DequeAllocator<U> const& u) : std::allocator<T>(u) {}
|
|
|
|
T* allocate(std::size_t n, std::allocator<void>::const_pointer hint = 0) {
|
|
DequeAllocatorStats::allocatedBytes += n * sizeof(T);
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//fprintf(stderr, "Allocating %lld objects for %lld bytes (total allocated: %lld)\n", n, n * sizeof(T), DequeAllocatorStats::allocatedBytes);
|
|
return std::allocator<T>::allocate(n, hint);
|
|
}
|
|
void deallocate(T* p, std::size_t n) {
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|
DequeAllocatorStats::allocatedBytes -= n * sizeof(T);
|
|
//fprintf(stderr, "Deallocating %lld objects for %lld bytes (total allocated: %lld)\n", n, n * sizeof(T), DequeAllocatorStats::allocatedBytes);
|
|
return std::allocator<T>::deallocate(p, n);
|
|
}
|
|
};
|
|
|
|
TEST_CASE("/fdbserver/tlogserver/VersionMessagesOverheadFactor" ) {
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|
|
|
typedef std::pair<Version, LengthPrefixedStringRef> TestType; // type used by versionMessages
|
|
|
|
for(int i = 1; i < 9; ++i) {
|
|
for(int j = 0; j < 20; ++j) {
|
|
DequeAllocatorStats::allocatedBytes = 0;
|
|
DequeAllocator<TestType> allocator;
|
|
std::deque<TestType, DequeAllocator<TestType>> d(allocator);
|
|
|
|
int numElements = deterministicRandom()->randomInt(pow(10, i-1), pow(10, i));
|
|
for(int k = 0; k < numElements; ++k) {
|
|
d.push_back(TestType());
|
|
}
|
|
|
|
int removedElements = 0;//deterministicRandom()->randomInt(0, numElements); // FIXME: the overhead factor does not accurately account for removal!
|
|
for(int k = 0; k < removedElements; ++k) {
|
|
d.pop_front();
|
|
}
|
|
|
|
int64_t dequeBytes = DequeAllocatorStats::allocatedBytes + sizeof(std::deque<TestType>);
|
|
int64_t insertedBytes = (numElements-removedElements) * sizeof(TestType);
|
|
double overheadFactor = std::max<double>(insertedBytes, dequeBytes-10000) / insertedBytes; // We subtract 10K here as an estimated upper bound for the fixed cost of an std::deque
|
|
//fprintf(stderr, "%d elements (%d inserted, %d removed):\n", numElements-removedElements, numElements, removedElements);
|
|
//fprintf(stderr, "Allocated %lld bytes to store %lld bytes (%lf overhead factor)\n", dequeBytes, insertedBytes, overheadFactor);
|
|
ASSERT(overheadFactor * 1024 <= SERVER_KNOBS->VERSION_MESSAGES_OVERHEAD_FACTOR_1024THS);
|
|
}
|
|
}
|
|
|
|
return Void();
|
|
}
|