229 lines
9.0 KiB
C++
229 lines
9.0 KiB
C++
/*
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* RestoreCommon.actor.h
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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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// This file includes the code copied from the old restore in FDB 5.2
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// The functions and structure declared in this file can be shared by
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// the old restore and the new performant restore systems
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#pragma once
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#if defined(NO_INTELLISENSE) && !defined(FDBSERVER_RESTORECOMMON_ACTOR_G_H)
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#define FDBSERVER_RESTORECOMMON_ACTOR_G_H
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#include "fdbserver/RestoreCommon.actor.g.h"
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#elif !defined(FDBSERVER_RESTORECOMMON_ACTOR_H)
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#define FDBSERVER_RESTORECOMMON_ACTOR_H
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#include "flow/flow.h"
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#include "flow/genericactors.actor.h"
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#include "fdbclient/Tuple.h"
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#include "fdbclient/NativeAPI.actor.h"
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#include "fdbrpc/IAsyncFile.h"
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#include "fdbclient/BackupAgent.actor.h"
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#include "flow/actorcompiler.h" // has to be last include
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// RestoreConfig copied from FileBackupAgent.actor.cpp
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// We copy RestoreConfig instead of using (and potentially changing) it in place to avoid conflict with the existing code
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// TODO: Merge this RestoreConfig with the original RestoreConfig in FileBackupAgent.actor.cpp
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typedef FileBackupAgent::ERestoreState ERestoreState;
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struct RestoreFileFR;
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// We copy RestoreConfig copied from FileBackupAgent.actor.cpp instead of using (and potentially changing) it in place to avoid conflict with the existing code
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// Split RestoreConfig defined in FileBackupAgent.actor.cpp to declaration in Restore.actor.h and implementation in RestoreCommon.actor.cpp,
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// so that we can use in both the existing restore and the new fast restore subsystems
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// We use RestoreConfig as a Reference<RestoreConfig>, which leads to some non-functional changes in RestoreConfig
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class RestoreConfig : public KeyBackedConfig, public ReferenceCounted<RestoreConfig> {
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public:
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RestoreConfig(UID uid = UID()) : KeyBackedConfig(fileRestorePrefixRange.begin, uid) {}
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RestoreConfig(Reference<Task> task) : KeyBackedConfig(fileRestorePrefixRange.begin, task) {}
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KeyBackedProperty<ERestoreState> stateEnum();
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Future<StringRef> stateText(Reference<ReadYourWritesTransaction> tr);
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KeyBackedProperty<Key> addPrefix();
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KeyBackedProperty<Key> removePrefix();
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// XXX: Remove restoreRange() once it is safe to remove. It has been changed to restoreRanges
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KeyBackedProperty<KeyRange> restoreRange();
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KeyBackedProperty<std::vector<KeyRange>> restoreRanges();
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KeyBackedProperty<Key> batchFuture();
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KeyBackedProperty<Version> restoreVersion();
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KeyBackedProperty<Reference<IBackupContainer>> sourceContainer();
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// Get the source container as a bare URL, without creating a container instance
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KeyBackedProperty<Value> sourceContainerURL();
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// Total bytes written by all log and range restore tasks.
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KeyBackedBinaryValue<int64_t> bytesWritten();
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// File blocks that have had tasks created for them by the Dispatch task
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KeyBackedBinaryValue<int64_t> filesBlocksDispatched();
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// File blocks whose tasks have finished
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KeyBackedBinaryValue<int64_t> fileBlocksFinished();
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// Total number of files in the fileMap
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KeyBackedBinaryValue<int64_t> fileCount();
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// Total number of file blocks in the fileMap
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KeyBackedBinaryValue<int64_t> fileBlockCount();
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Future<std::vector<KeyRange>> getRestoreRangesOrDefault(Reference<ReadYourWritesTransaction> tr);
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ACTOR static Future<std::vector<KeyRange>> getRestoreRangesOrDefault_impl(RestoreConfig *self, Reference<ReadYourWritesTransaction> tr);
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// Describes a file to load blocks from during restore. Ordered by version and then fileName to enable
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// incrementally advancing through the map, saving the version and path of the next starting point.
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struct RestoreFile {
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Version version;
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std::string fileName;
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bool isRange; // false for log file
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int64_t blockSize;
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int64_t fileSize;
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Version endVersion; // not meaningful for range files
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Tuple pack() const {
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//fprintf(stderr, "Filename:%s\n", fileName.c_str());
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return Tuple()
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.append(version)
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.append(StringRef(fileName))
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.append(isRange)
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.append(fileSize)
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.append(blockSize)
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.append(endVersion);
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}
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static RestoreFile unpack(Tuple const &t) {
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RestoreFile r;
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int i = 0;
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r.version = t.getInt(i++);
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r.fileName = t.getString(i++).toString();
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r.isRange = t.getInt(i++) != 0;
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r.fileSize = t.getInt(i++);
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r.blockSize = t.getInt(i++);
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r.endVersion = t.getInt(i++);
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return r;
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}
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};
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//typedef KeyBackedSet<RestoreFile> FileSetT;
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KeyBackedSet<RestoreFile> fileSet();
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Future<bool> isRunnable(Reference<ReadYourWritesTransaction> tr);
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Future<Void> logError(Database cx, Error e, std::string const &details, void *taskInstance = nullptr);
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Key mutationLogPrefix();
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Key applyMutationsMapPrefix();
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ACTOR Future<int64_t> getApplyVersionLag_impl(Reference<ReadYourWritesTransaction> tr, UID uid);
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Future<int64_t> getApplyVersionLag(Reference<ReadYourWritesTransaction> tr);
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void initApplyMutations(Reference<ReadYourWritesTransaction> tr, Key addPrefix, Key removePrefix);
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void clearApplyMutationsKeys(Reference<ReadYourWritesTransaction> tr);
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void setApplyBeginVersion(Reference<ReadYourWritesTransaction> tr, Version ver);
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void setApplyEndVersion(Reference<ReadYourWritesTransaction> tr, Version ver);
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Future<Version> getApplyEndVersion(Reference<ReadYourWritesTransaction> tr);
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ACTOR static Future<std::string> getProgress_impl(Reference<RestoreConfig> restore, Reference<ReadYourWritesTransaction> tr);
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Future<std::string> getProgress(Reference<ReadYourWritesTransaction> tr);
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ACTOR static Future<std::string> getFullStatus_impl(Reference<RestoreConfig> restore, Reference<ReadYourWritesTransaction> tr);
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Future<std::string> getFullStatus(Reference<ReadYourWritesTransaction> tr);
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std::string toString(); // Added by Meng
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};
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typedef RestoreConfig::RestoreFile RestoreFile;
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// Describes a file to load blocks from during restore. Ordered by version and then fileName to enable
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// incrementally advancing through the map, saving the version and path of the next starting point.
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// NOTE: The struct RestoreFileFR can NOT be named RestoreFile, because compiler will get confused in linking which RestoreFile should be used.
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// If we use RestoreFile, the compilation can succeed, but weird segmentation fault will happen.
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struct RestoreFileFR {
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Version version;
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std::string fileName;
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bool isRange; // false for log file
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int64_t blockSize;
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int64_t fileSize;
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Version endVersion; // not meaningful for range files
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Version beginVersion; // range file's beginVersion == endVersion; log file contains mutations in version [beginVersion, endVersion)
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int64_t cursor; //The start block location to be restored. All blocks before cursor have been scheduled to load and restore
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Tuple pack() const {
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return Tuple()
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.append(version)
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.append(StringRef(fileName))
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.append(isRange)
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.append(fileSize)
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.append(blockSize)
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.append(endVersion)
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.append(beginVersion)
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.append(cursor);
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}
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static RestoreFileFR unpack(Tuple const &t) {
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RestoreFileFR r;
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int i = 0;
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r.version = t.getInt(i++);
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r.fileName = t.getString(i++).toString();
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r.isRange = t.getInt(i++) != 0;
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r.fileSize = t.getInt(i++);
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r.blockSize = t.getInt(i++);
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r.endVersion = t.getInt(i++);
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r.beginVersion = t.getInt(i++);
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r.cursor = t.getInt(i++);
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return r;
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}
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bool operator<(const RestoreFileFR& rhs) const { return beginVersion < rhs.beginVersion; }
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RestoreFileFR() : version(invalidVersion), isRange(false), blockSize(0), fileSize(0), endVersion(invalidVersion), beginVersion(invalidVersion), cursor(0) {}
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RestoreFileFR(Version version, std::string fileName, bool isRange, int64_t blockSize, int64_t fileSize, Version endVersion, Version beginVersion) : version(version), fileName(fileName), isRange(isRange), blockSize(blockSize), fileSize(fileSize), endVersion(endVersion), beginVersion(beginVersion), cursor(0) {}
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std::string toString() const {
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std::stringstream ss;
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ss << "version:" << std::to_string(version) << " fileName:" << fileName << " isRange:" << std::to_string(isRange)
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<< " blockSize:" << std::to_string(blockSize) << " fileSize:" << std::to_string(fileSize)
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<< " endVersion:" << std::to_string(endVersion) << std::to_string(beginVersion)
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<< " cursor:" << std::to_string(cursor);
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return ss.str();
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}
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};
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namespace parallelFileRestore {
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ACTOR Future<Standalone<VectorRef<KeyValueRef>>> decodeRangeFileBlock(Reference<IAsyncFile> file, int64_t offset, int len);
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ACTOR Future<Standalone<VectorRef<KeyValueRef>>> decodeLogFileBlock(Reference<IAsyncFile> file, int64_t offset, int len);
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}
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#include "flow/unactorcompiler.h"
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#endif //FDBCLIENT_Restore_H
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