771 lines
32 KiB
C++
771 lines
32 KiB
C++
/*
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* QuietDatabase.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 <cinttypes>
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#include "flow/ActorCollection.h"
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#include "fdbrpc/simulator.h"
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#include "flow/Trace.h"
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#include "fdbclient/DatabaseContext.h"
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#include "fdbclient/NativeAPI.actor.h"
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#include "fdbclient/ReadYourWrites.h"
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#include "fdbclient/RunTransaction.actor.h"
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#include "fdbserver/Knobs.h"
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#include "fdbserver/TesterInterface.actor.h"
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#include "fdbserver/WorkerInterface.actor.h"
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#include "fdbserver/ServerDBInfo.h"
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#include "fdbserver/Status.h"
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#include "fdbclient/ManagementAPI.actor.h"
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#include <boost/lexical_cast.hpp>
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#include "flow/actorcompiler.h" // This must be the last #include.
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ACTOR Future<std::vector<WorkerDetails>> getWorkers(Reference<AsyncVar<ServerDBInfo> const> dbInfo, int flags = 0) {
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loop {
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choose {
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when(std::vector<WorkerDetails> w = wait(brokenPromiseToNever(
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dbInfo->get().clusterInterface.getWorkers.getReply(GetWorkersRequest(flags))))) {
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return w;
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}
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when(wait(dbInfo->onChange())) {}
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}
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}
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}
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// Gets the WorkerInterface representing the Master server.
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ACTOR Future<WorkerInterface> getMasterWorker(Database cx, Reference<AsyncVar<ServerDBInfo> const> dbInfo) {
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TraceEvent("GetMasterWorker").detail("Stage", "GettingWorkers");
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loop {
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state std::vector<WorkerDetails> workers = wait(getWorkers(dbInfo));
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for (int i = 0; i < workers.size(); i++) {
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if (workers[i].interf.address() == dbInfo->get().master.address()) {
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TraceEvent("GetMasterWorker")
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.detail("Stage", "GotWorkers")
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.detail("MasterId", dbInfo->get().master.id())
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.detail("WorkerId", workers[i].interf.id());
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return workers[i].interf;
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}
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}
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TraceEvent(SevWarn, "GetMasterWorkerError")
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.detail("Error", "MasterWorkerNotFound")
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.detail("Master", dbInfo->get().master.id())
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.detail("MasterAddress", dbInfo->get().master.address())
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.detail("WorkerCount", workers.size());
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wait(delay(1.0));
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}
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}
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// Gets the WorkerInterface representing the data distributor.
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ACTOR Future<WorkerInterface> getDataDistributorWorker(Database cx, Reference<AsyncVar<ServerDBInfo> const> dbInfo) {
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TraceEvent("GetDataDistributorWorker").detail("Stage", "GettingWorkers");
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loop {
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state std::vector<WorkerDetails> workers = wait(getWorkers(dbInfo));
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if (!dbInfo->get().distributor.present())
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continue;
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for (int i = 0; i < workers.size(); i++) {
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if (workers[i].interf.address() == dbInfo->get().distributor.get().address()) {
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TraceEvent("GetDataDistributorWorker")
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.detail("Stage", "GotWorkers")
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.detail("DataDistributorId", dbInfo->get().distributor.get().id())
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.detail("WorkerId", workers[i].interf.id());
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return workers[i].interf;
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}
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}
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TraceEvent(SevWarn, "GetDataDistributorWorker")
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.detail("Error", "DataDistributorWorkerNotFound")
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.detail("DataDistributorId", dbInfo->get().distributor.get().id())
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.detail("DataDistributorAddress", dbInfo->get().distributor.get().address())
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.detail("WorkerCount", workers.size());
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}
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}
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// Gets the number of bytes in flight from the data distributor.
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ACTOR Future<int64_t> getDataInFlight(Database cx, WorkerInterface distributorWorker) {
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try {
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TraceEvent("DataInFlight").detail("Stage", "ContactingDataDistributor");
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TraceEventFields md = wait(timeoutError(
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distributorWorker.eventLogRequest.getReply(EventLogRequest(LiteralStringRef("TotalDataInFlight"))), 1.0));
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int64_t dataInFlight = boost::lexical_cast<int64_t>(md.getValue("TotalBytes"));
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return dataInFlight;
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} catch (Error& e) {
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TraceEvent("QuietDatabaseFailure", distributorWorker.id())
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.error(e)
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.detail("Reason", "Failed to extract DataInFlight");
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throw;
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}
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}
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// Gets the number of bytes in flight from the data distributor.
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ACTOR Future<int64_t> getDataInFlight(Database cx, Reference<AsyncVar<ServerDBInfo> const> dbInfo) {
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WorkerInterface distributorInterf = wait(getDataDistributorWorker(cx, dbInfo));
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int64_t dataInFlight = wait(getDataInFlight(cx, distributorInterf));
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return dataInFlight;
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}
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// Computes the queue size for storage servers and tlogs using the bytesInput and bytesDurable attributes
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int64_t getQueueSize(const TraceEventFields& md) {
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double inputRate, durableRate;
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double inputRoughness, durableRoughness;
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int64_t inputBytes, durableBytes;
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sscanf(md.getValue("BytesInput").c_str(), "%lf %lf %" SCNd64, &inputRate, &inputRoughness, &inputBytes);
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sscanf(md.getValue("BytesDurable").c_str(), "%lf %lf %" SCNd64, &durableRate, &durableRoughness, &durableBytes);
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return inputBytes - durableBytes;
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}
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// Computes the popped version lag for tlogs
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int64_t getPoppedVersionLag(const TraceEventFields& md) {
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int64_t persistentDataDurableVersion = boost::lexical_cast<int64_t>(md.getValue("PersistentDataDurableVersion"));
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int64_t queuePoppedVersion = boost::lexical_cast<int64_t>(md.getValue("QueuePoppedVersion"));
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return persistentDataDurableVersion - queuePoppedVersion;
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}
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ACTOR Future<std::vector<WorkerInterface>> getCoordWorkers(Database cx,
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Reference<AsyncVar<ServerDBInfo> const> dbInfo) {
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state std::vector<WorkerDetails> workers = wait(getWorkers(dbInfo));
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Optional<Value> coordinators =
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wait(runRYWTransaction(cx, [=](Reference<ReadYourWritesTransaction> tr) -> Future<Optional<Value>> {
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tr->setOption(FDBTransactionOptions::ACCESS_SYSTEM_KEYS);
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tr->setOption(FDBTransactionOptions::LOCK_AWARE);
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return tr->get(coordinatorsKey);
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}));
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if (!coordinators.present()) {
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throw operation_failed();
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}
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std::vector<NetworkAddress> coordinatorsAddr =
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ClusterConnectionString(coordinators.get().toString()).coordinators();
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std::set<NetworkAddress> coordinatorsAddrSet;
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for (const auto& addr : coordinatorsAddr) {
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TraceEvent(SevDebug, "CoordinatorAddress").detail("Addr", addr);
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coordinatorsAddrSet.insert(addr);
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}
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std::vector<WorkerInterface> result;
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for (const auto& worker : workers) {
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NetworkAddress primary = worker.interf.address();
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Optional<NetworkAddress> secondary = worker.interf.tLog.getEndpoint().addresses.secondaryAddress;
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if (coordinatorsAddrSet.find(primary) != coordinatorsAddrSet.end() ||
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(secondary.present() && (coordinatorsAddrSet.find(secondary.get()) != coordinatorsAddrSet.end()))) {
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result.push_back(worker.interf);
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}
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}
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return result;
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}
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// This is not robust in the face of a TLog failure
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ACTOR Future<std::pair<int64_t, int64_t>> getTLogQueueInfo(Database cx,
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Reference<AsyncVar<ServerDBInfo> const> dbInfo) {
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TraceEvent("MaxTLogQueueSize").detail("Stage", "ContactingLogs");
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state std::vector<WorkerDetails> workers = wait(getWorkers(dbInfo));
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std::map<NetworkAddress, WorkerInterface> workersMap;
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for (auto worker : workers) {
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workersMap[worker.interf.address()] = worker.interf;
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}
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state std::vector<Future<TraceEventFields>> messages;
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state std::vector<TLogInterface> tlogs = dbInfo->get().logSystemConfig.allPresentLogs();
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for (int i = 0; i < tlogs.size(); i++) {
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auto itr = workersMap.find(tlogs[i].address());
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if (itr == workersMap.end()) {
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TraceEvent("QuietDatabaseFailure")
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.detail("Reason", "Could not find worker for log server")
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.detail("Tlog", tlogs[i].id());
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throw attribute_not_found();
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}
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messages.push_back(timeoutError(
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itr->second.eventLogRequest.getReply(EventLogRequest(StringRef(tlogs[i].id().toString() + "/TLogMetrics"))),
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1.0));
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}
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wait(waitForAll(messages));
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TraceEvent("MaxTLogQueueSize").detail("Stage", "ComputingMax").detail("MessageCount", messages.size());
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state int64_t maxQueueSize = 0;
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state int64_t maxPoppedVersionLag = 0;
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state int i = 0;
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for (; i < messages.size(); i++) {
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try {
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maxQueueSize = std::max(maxQueueSize, getQueueSize(messages[i].get()));
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maxPoppedVersionLag = std::max(maxPoppedVersionLag, getPoppedVersionLag(messages[i].get()));
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} catch (Error& e) {
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TraceEvent("QuietDatabaseFailure")
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.detail("Reason", "Failed to extract MaxTLogQueue")
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.detail("Tlog", tlogs[i].id());
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throw;
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}
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}
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return std::make_pair(maxQueueSize, maxPoppedVersionLag);
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}
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ACTOR Future<std::vector<StorageServerInterface>> getStorageServers(Database cx, bool use_system_priority = false) {
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state Transaction tr(cx);
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loop {
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if (use_system_priority) {
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tr.setOption(FDBTransactionOptions::PRIORITY_SYSTEM_IMMEDIATE);
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}
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tr.setOption(FDBTransactionOptions::LOCK_AWARE);
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try {
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RangeResult serverList = wait(tr.getRange(serverListKeys, CLIENT_KNOBS->TOO_MANY));
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ASSERT(!serverList.more && serverList.size() < CLIENT_KNOBS->TOO_MANY);
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std::vector<StorageServerInterface> servers;
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servers.reserve(serverList.size());
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for (int i = 0; i < serverList.size(); i++)
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servers.push_back(decodeServerListValue(serverList[i].value));
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return servers;
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} catch (Error& e) {
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wait(tr.onError(e));
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}
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}
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}
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ACTOR Future<std::vector<WorkerInterface>> getStorageWorkers(Database cx,
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Reference<AsyncVar<ServerDBInfo> const> dbInfo,
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bool localOnly) {
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state std::vector<StorageServerInterface> servers = wait(getStorageServers(cx));
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state std::map<NetworkAddress, WorkerInterface> workersMap;
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std::vector<WorkerDetails> workers = wait(getWorkers(dbInfo));
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for (const auto& worker : workers) {
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workersMap[worker.interf.address()] = worker.interf;
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}
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Optional<Value> regionsValue =
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wait(runRYWTransaction(cx, [=](Reference<ReadYourWritesTransaction> tr) -> Future<Optional<Value>> {
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tr->setOption(FDBTransactionOptions::ACCESS_SYSTEM_KEYS);
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tr->setOption(FDBTransactionOptions::LOCK_AWARE);
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return tr->get(LiteralStringRef("usable_regions").withPrefix(configKeysPrefix));
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}));
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int usableRegions = 1;
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if (regionsValue.present()) {
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usableRegions = atoi(regionsValue.get().toString().c_str());
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}
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auto masterDcId = dbInfo->get().master.locality.dcId();
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std::vector<WorkerInterface> result;
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for (const auto& server : servers) {
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TraceEvent(SevDebug, "DcIdInfo")
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.detail("ServerLocalityID", server.locality.dcId())
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.detail("MasterDcID", masterDcId);
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if (!localOnly || (usableRegions == 1 || server.locality.dcId() == masterDcId)) {
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auto itr = workersMap.find(server.address());
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if (itr == workersMap.end()) {
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TraceEvent(SevWarn, "GetStorageWorkers")
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.detail("Reason", "Could not find worker for storage server")
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.detail("SS", server.id());
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throw operation_failed();
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}
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result.push_back(itr->second);
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}
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}
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return result;
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}
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// Helper function to extract he maximum SQ size of all provided messages. All futures in the
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// messages vector have to be ready.
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int64_t extractMaxQueueSize(const std::vector<Future<TraceEventFields>>& messages,
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const std::vector<StorageServerInterface>& servers) {
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int64_t maxQueueSize = 0;
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UID maxQueueServer;
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for (int i = 0; i < messages.size(); i++) {
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try {
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auto queueSize = getQueueSize(messages[i].get());
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if (queueSize > maxQueueSize) {
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maxQueueSize = queueSize;
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maxQueueServer = servers[i].id();
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}
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} catch (Error& e) {
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TraceEvent("QuietDatabaseFailure")
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.detail("Reason", "Failed to extract MaxStorageServerQueue")
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.detail("SS", servers[i].id());
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for (auto& m : messages) {
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TraceEvent("Messages").detail("Info", m.get().toString());
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}
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throw;
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}
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}
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TraceEvent("QuietDatabaseGotMaxStorageServerQueueSize")
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.detail("Stage", "MaxComputed")
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.detail("Max", maxQueueSize)
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.detail("MaxQueueServer", format("%016" PRIx64, maxQueueServer.first()));
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return maxQueueSize;
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}
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// Timeout wrapper when getting the storage metrics. This will do some additional tracing
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ACTOR Future<TraceEventFields> getStorageMetricsTimeout(UID storage, WorkerInterface wi) {
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state Future<TraceEventFields> result =
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wi.eventLogRequest.getReply(EventLogRequest(StringRef(storage.toString() + "/StorageMetrics")));
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state Future<Void> timeout = delay(1.0);
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choose {
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when(TraceEventFields res = wait(result)) { return res; }
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when(wait(timeout)) {
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TraceEvent("QuietDatabaseFailure")
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.detail("Reason", "Could not fetch StorageMetrics")
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.detail("Storage", format("%016" PRIx64, storage.first()));
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throw timed_out();
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}
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}
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};
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// Gets the maximum size of all the storage server queues
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ACTOR Future<int64_t> getMaxStorageServerQueueSize(Database cx, Reference<AsyncVar<ServerDBInfo> const> dbInfo) {
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TraceEvent("MaxStorageServerQueueSize").detail("Stage", "ContactingStorageServers");
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Future<std::vector<StorageServerInterface>> serversFuture = getStorageServers(cx);
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state Future<std::vector<WorkerDetails>> workersFuture = getWorkers(dbInfo);
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state std::vector<StorageServerInterface> servers = wait(serversFuture);
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state std::vector<WorkerDetails> workers = wait(workersFuture);
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std::map<NetworkAddress, WorkerInterface> workersMap;
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for (auto worker : workers) {
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workersMap[worker.interf.address()] = worker.interf;
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}
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state std::vector<Future<TraceEventFields>> messages;
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for (int i = 0; i < servers.size(); i++) {
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auto itr = workersMap.find(servers[i].address());
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if (itr == workersMap.end()) {
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TraceEvent("QuietDatabaseFailure")
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.detail("Reason", "Could not find worker for storage server")
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.detail("SS", servers[i].id());
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throw attribute_not_found();
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}
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messages.push_back(getStorageMetricsTimeout(servers[i].id(), itr->second));
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}
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wait(waitForAll(messages));
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TraceEvent("MaxStorageServerQueueSize").detail("Stage", "ComputingMax").detail("MessageCount", messages.size());
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return extractMaxQueueSize(messages, servers);
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}
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// Gets the size of the data distribution queue. If reportInFlight is true, then data in flight is considered part of
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// the queue
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ACTOR Future<int64_t> getDataDistributionQueueSize(Database cx,
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WorkerInterface distributorWorker,
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bool reportInFlight) {
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try {
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TraceEvent("DataDistributionQueueSize").detail("Stage", "ContactingDataDistributor");
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TraceEventFields movingDataMessage = wait(timeoutError(
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distributorWorker.eventLogRequest.getReply(EventLogRequest(LiteralStringRef("MovingData"))), 1.0));
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TraceEvent("DataDistributionQueueSize").detail("Stage", "GotString");
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int64_t inQueue = boost::lexical_cast<int64_t>(movingDataMessage.getValue("InQueue"));
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if (reportInFlight) {
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int64_t inFlight = boost::lexical_cast<int64_t>(movingDataMessage.getValue("InFlight"));
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inQueue += inFlight;
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}
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return inQueue;
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} catch (Error& e) {
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TraceEvent("QuietDatabaseFailure", distributorWorker.id())
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.detail("Reason", "Failed to extract DataDistributionQueueSize");
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throw;
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}
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}
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// Gets the size of the data distribution queue. If reportInFlight is true, then data in flight is considered part of
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// the queue Convenience method that first finds the master worker from a zookeeper interface
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ACTOR Future<int64_t> getDataDistributionQueueSize(Database cx,
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Reference<AsyncVar<ServerDBInfo> const> dbInfo,
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bool reportInFlight) {
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WorkerInterface distributorInterf = wait(getDataDistributorWorker(cx, dbInfo));
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int64_t inQueue = wait(getDataDistributionQueueSize(cx, distributorInterf, reportInFlight));
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return inQueue;
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}
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// Gets if the number of process and machine teams does not exceed the maximum allowed number of teams
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ACTOR Future<bool> getTeamCollectionValid(Database cx, WorkerInterface dataDistributorWorker) {
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state int attempts = 0;
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state bool ret = false;
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loop {
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try {
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if (!g_network->isSimulated()) {
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return true;
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}
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TraceEvent("GetTeamCollectionValid").detail("Stage", "ContactingMaster");
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TraceEventFields teamCollectionInfoMessage = wait(timeoutError(
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dataDistributorWorker.eventLogRequest.getReply(EventLogRequest(LiteralStringRef("TeamCollectionInfo"))),
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1.0));
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TraceEvent("GetTeamCollectionValid").detail("Stage", "GotString");
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state int64_t currentTeams =
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boost::lexical_cast<int64_t>(teamCollectionInfoMessage.getValue("CurrentServerTeams"));
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state int64_t desiredTeams =
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boost::lexical_cast<int64_t>(teamCollectionInfoMessage.getValue("DesiredTeams"));
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state int64_t maxTeams = boost::lexical_cast<int64_t>(teamCollectionInfoMessage.getValue("MaxTeams"));
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state int64_t currentMachineTeams =
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boost::lexical_cast<int64_t>(teamCollectionInfoMessage.getValue("CurrentMachineTeams"));
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state int64_t healthyMachineTeams =
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boost::lexical_cast<int64_t>(teamCollectionInfoMessage.getValue("CurrentHealthyMachineTeams"));
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state int64_t desiredMachineTeams =
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boost::lexical_cast<int64_t>(teamCollectionInfoMessage.getValue("DesiredMachineTeams"));
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state int64_t maxMachineTeams =
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boost::lexical_cast<int64_t>(teamCollectionInfoMessage.getValue("MaxMachineTeams"));
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state int64_t minServerTeamsOnServer =
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boost::lexical_cast<int64_t>(teamCollectionInfoMessage.getValue("MinTeamsOnServer"));
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state int64_t maxServerTeamsOnServer =
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boost::lexical_cast<int64_t>(teamCollectionInfoMessage.getValue("MaxTeamsOnServer"));
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state int64_t minMachineTeamsOnMachine =
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boost::lexical_cast<int64_t>(teamCollectionInfoMessage.getValue("MinMachineTeamsOnMachine"));
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state int64_t maxMachineTeamsOnMachine =
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|
boost::lexical_cast<int64_t>(teamCollectionInfoMessage.getValue("MaxMachineTeamsOnMachine"));
|
|
|
|
// The if condition should be consistent with the condition in serverTeamRemover() and
|
|
// machineTeamRemover() that decides if redundant teams exist.
|
|
// Team number is always valid when we disable teamRemover, which avoids false positive in simulation test.
|
|
// The minimun team number per server (and per machine) should be no less than 0 so that newly added machine
|
|
// can host data on it.
|
|
//
|
|
// If the machineTeamRemover does not remove the machine team with the most machine teams,
|
|
// we may oscillate between building more server teams by teamBuilder() and removing those teams by
|
|
// teamRemover To avoid false positive in simulation, we skip the consistency check in this case.
|
|
// This is a corner case. This is a work-around if case the team number requirements cannot be satisfied.
|
|
//
|
|
// The checking for too many teams is disabled because teamRemover may not remove a team if it leads to 0
|
|
// team on a server
|
|
//(!SERVER_KNOBS->TR_FLAG_DISABLE_MACHINE_TEAM_REMOVER &&
|
|
// healthyMachineTeams > desiredMachineTeams) ||
|
|
// (!SERVER_KNOBS->TR_FLAG_DISABLE_SERVER_TEAM_REMOVER && currentTeams > desiredTeams) ||
|
|
if ((minMachineTeamsOnMachine <= 0 || minServerTeamsOnServer <= 0) &&
|
|
SERVER_KNOBS->TR_FLAG_REMOVE_MT_WITH_MOST_TEAMS) {
|
|
ret = false;
|
|
|
|
if (attempts++ < 10) {
|
|
wait(delay(60));
|
|
continue; // We may not receive the most recent TeamCollectionInfo
|
|
}
|
|
|
|
// When DESIRED_TEAMS_PER_SERVER == 1, we see minMachineTeamOnMachine can be 0 in one out of 30k test
|
|
// cases. Only check DESIRED_TEAMS_PER_SERVER == 3 for now since it is mostly used configuration.
|
|
// TODO: Remove the constraint SERVER_KNOBS->DESIRED_TEAMS_PER_SERVER == 3 to ensure that
|
|
// the minimun team number per server (and per machine) is always > 0 for any number of replicas
|
|
TraceEvent("GetTeamCollectionValid")
|
|
.detail("CurrentServerTeams", currentTeams)
|
|
.detail("DesiredTeams", desiredTeams)
|
|
.detail("MaxTeams", maxTeams)
|
|
.detail("CurrentHealthyMachineTeams", healthyMachineTeams)
|
|
.detail("DesiredMachineTeams", desiredMachineTeams)
|
|
.detail("CurrentMachineTeams", currentMachineTeams)
|
|
.detail("MaxMachineTeams", maxMachineTeams)
|
|
.detail("MinTeamsOnServer", minServerTeamsOnServer)
|
|
.detail("MaxTeamsOnServer", maxServerTeamsOnServer)
|
|
.detail("MinMachineTeamsOnMachine", minMachineTeamsOnMachine)
|
|
.detail("MaxMachineTeamsOnMachine", maxMachineTeamsOnMachine)
|
|
.detail("DesiredTeamsPerServer", SERVER_KNOBS->DESIRED_TEAMS_PER_SERVER)
|
|
.detail("MaxTeamsPerServer", SERVER_KNOBS->MAX_TEAMS_PER_SERVER)
|
|
.detail("RemoveMTWithMostTeams", SERVER_KNOBS->TR_FLAG_REMOVE_MT_WITH_MOST_TEAMS);
|
|
return ret;
|
|
} else {
|
|
return true;
|
|
}
|
|
|
|
} catch (Error& e) {
|
|
if (e.code() == error_code_actor_cancelled) {
|
|
throw;
|
|
}
|
|
TraceEvent("QuietDatabaseFailure", dataDistributorWorker.id())
|
|
.detail("Reason", "Failed to extract GetTeamCollectionValid information");
|
|
attempts++;
|
|
if (attempts > 10) {
|
|
TraceEvent("QuietDatabaseNoTeamCollectionInfo", dataDistributorWorker.id())
|
|
.detail("Reason", "Had never called build team to build any team");
|
|
return true;
|
|
}
|
|
// throw;
|
|
wait(delay(10.0));
|
|
}
|
|
};
|
|
}
|
|
|
|
// Gets if the number of process and machine teams does not exceed the maximum allowed number of teams
|
|
// Convenience method that first finds the master worker from a zookeeper interface
|
|
ACTOR Future<bool> getTeamCollectionValid(Database cx, Reference<AsyncVar<ServerDBInfo> const> dbInfo) {
|
|
WorkerInterface dataDistributorWorker = wait(getDataDistributorWorker(cx, dbInfo));
|
|
bool valid = wait(getTeamCollectionValid(cx, dataDistributorWorker));
|
|
return valid;
|
|
}
|
|
|
|
// Checks that data distribution is active
|
|
ACTOR Future<bool> getDataDistributionActive(Database cx, WorkerInterface distributorWorker) {
|
|
try {
|
|
TraceEvent("DataDistributionActive").detail("Stage", "ContactingDataDistributor");
|
|
|
|
TraceEventFields activeMessage = wait(timeoutError(
|
|
distributorWorker.eventLogRequest.getReply(EventLogRequest(LiteralStringRef("DDTrackerStarting"))), 1.0));
|
|
|
|
return activeMessage.getValue("State") == "Active";
|
|
} catch (Error& e) {
|
|
TraceEvent("QuietDatabaseFailure", distributorWorker.id())
|
|
.detail("Reason", "Failed to extract DataDistributionActive");
|
|
throw;
|
|
}
|
|
}
|
|
|
|
// Checks to see if any storage servers are being recruited
|
|
ACTOR Future<bool> getStorageServersRecruiting(Database cx, WorkerInterface distributorWorker, UID distributorUID) {
|
|
try {
|
|
TraceEvent("StorageServersRecruiting").detail("Stage", "ContactingDataDistributor");
|
|
TraceEventFields recruitingMessage =
|
|
wait(timeoutError(distributorWorker.eventLogRequest.getReply(
|
|
EventLogRequest(StringRef("StorageServerRecruitment_" + distributorUID.toString()))),
|
|
1.0));
|
|
|
|
TraceEvent("StorageServersRecruiting").detail("Message", recruitingMessage.toString());
|
|
|
|
if (recruitingMessage.getValue("State") == "Recruiting") {
|
|
std::string tssValue;
|
|
// if we're tss recruiting, that's fine because that can block indefinitely if only 1 free storage process
|
|
if (!recruitingMessage.tryGetValue("IsTSS", tssValue) || tssValue == "False") {
|
|
return true;
|
|
}
|
|
}
|
|
return false;
|
|
} catch (Error& e) {
|
|
TraceEvent("QuietDatabaseFailure", distributorWorker.id())
|
|
.detail("Reason", "Failed to extract StorageServersRecruiting")
|
|
.detail("DataDistributorID", distributorUID);
|
|
throw;
|
|
}
|
|
}
|
|
|
|
ACTOR Future<Void> repairDeadDatacenter(Database cx,
|
|
Reference<AsyncVar<ServerDBInfo> const> dbInfo,
|
|
std::string context) {
|
|
if (g_network->isSimulated() && g_simulator.usableRegions > 1) {
|
|
bool primaryDead = g_simulator.datacenterDead(g_simulator.primaryDcId);
|
|
bool remoteDead = g_simulator.datacenterDead(g_simulator.remoteDcId);
|
|
|
|
// FIXME: the primary and remote can both be considered dead because excludes are not handled properly by the
|
|
// datacenterDead function
|
|
if (primaryDead && remoteDead) {
|
|
TraceEvent(SevWarnAlways, "CannotDisableFearlessConfiguration").log();
|
|
return Void();
|
|
}
|
|
if (primaryDead || remoteDead) {
|
|
TraceEvent(SevWarnAlways, "DisablingFearlessConfiguration")
|
|
.detail("Location", context)
|
|
.detail("Stage", "Repopulate")
|
|
.detail("RemoteDead", remoteDead)
|
|
.detail("PrimaryDead", primaryDead);
|
|
g_simulator.usableRegions = 1;
|
|
wait(success(ManagementAPI::changeConfig(
|
|
cx.getReference(),
|
|
(primaryDead ? g_simulator.disablePrimary : g_simulator.disableRemote) + " repopulate_anti_quorum=1",
|
|
true)));
|
|
while (dbInfo->get().recoveryState < RecoveryState::STORAGE_RECOVERED) {
|
|
wait(dbInfo->onChange());
|
|
}
|
|
TraceEvent(SevWarnAlways, "DisablingFearlessConfiguration")
|
|
.detail("Location", context)
|
|
.detail("Stage", "Usable_Regions");
|
|
wait(success(ManagementAPI::changeConfig(cx.getReference(), "usable_regions=1", true)));
|
|
}
|
|
}
|
|
return Void();
|
|
}
|
|
|
|
ACTOR Future<Void> reconfigureAfter(Database cx,
|
|
double time,
|
|
Reference<AsyncVar<ServerDBInfo> const> dbInfo,
|
|
std::string context) {
|
|
wait(delay(time));
|
|
wait(repairDeadDatacenter(cx, dbInfo, context));
|
|
return Void();
|
|
}
|
|
|
|
// Waits until a database quiets down (no data in flight, small tlog queue, low SQ, no active data distribution). This
|
|
// requires the database to be available and healthy in order to succeed.
|
|
ACTOR Future<Void> waitForQuietDatabase(Database cx,
|
|
Reference<AsyncVar<ServerDBInfo> const> dbInfo,
|
|
std::string phase,
|
|
int64_t dataInFlightGate = 2e6,
|
|
int64_t maxTLogQueueGate = 5e6,
|
|
int64_t maxStorageServerQueueGate = 5e6,
|
|
int64_t maxDataDistributionQueueSize = 0,
|
|
int64_t maxPoppedVersionLag = 30e6) {
|
|
state Future<Void> reconfig =
|
|
reconfigureAfter(cx, 100 + (deterministicRandom()->random01() * 100), dbInfo, "QuietDatabase");
|
|
state Future<int64_t> dataInFlight;
|
|
state Future<std::pair<int64_t, int64_t>> tLogQueueInfo;
|
|
state Future<int64_t> dataDistributionQueueSize;
|
|
state Future<bool> teamCollectionValid;
|
|
state Future<int64_t> storageQueueSize;
|
|
state Future<bool> dataDistributionActive;
|
|
state Future<bool> storageServersRecruiting;
|
|
auto traceMessage = "QuietDatabase" + phase + "Begin";
|
|
TraceEvent(traceMessage.c_str()).log();
|
|
|
|
// In a simulated environment, wait 5 seconds so that workers can move to their optimal locations
|
|
if (g_network->isSimulated())
|
|
wait(delay(5.0));
|
|
|
|
// The quiet database check (which runs at the end of every test) will always time out due to active data movement.
|
|
// To get around this, quiet Database will disable the perpetual wiggle in the setup phase.
|
|
|
|
printf("Set perpetual_storage_wiggle=0 ...\n");
|
|
wait(setPerpetualStorageWiggle(cx, false, LockAware::True));
|
|
printf("Set perpetual_storage_wiggle=0 Done.\n");
|
|
|
|
// Require 3 consecutive successful quiet database checks spaced 2 second apart
|
|
state int numSuccesses = 0;
|
|
loop {
|
|
try {
|
|
TraceEvent("QuietDatabaseWaitingOnDataDistributor").log();
|
|
WorkerInterface distributorWorker = wait(getDataDistributorWorker(cx, dbInfo));
|
|
UID distributorUID = dbInfo->get().distributor.get().id();
|
|
TraceEvent("QuietDatabaseGotDataDistributor", distributorUID)
|
|
.detail("Locality", distributorWorker.locality.toString());
|
|
|
|
dataInFlight = getDataInFlight(cx, distributorWorker);
|
|
tLogQueueInfo = getTLogQueueInfo(cx, dbInfo);
|
|
dataDistributionQueueSize = getDataDistributionQueueSize(cx, distributorWorker, dataInFlightGate == 0);
|
|
teamCollectionValid = getTeamCollectionValid(cx, distributorWorker);
|
|
storageQueueSize = getMaxStorageServerQueueSize(cx, dbInfo);
|
|
dataDistributionActive = getDataDistributionActive(cx, distributorWorker);
|
|
storageServersRecruiting = getStorageServersRecruiting(cx, distributorWorker, distributorUID);
|
|
|
|
wait(success(dataInFlight) && success(tLogQueueInfo) && success(dataDistributionQueueSize) &&
|
|
success(teamCollectionValid) && success(storageQueueSize) && success(dataDistributionActive) &&
|
|
success(storageServersRecruiting));
|
|
|
|
TraceEvent(("QuietDatabase" + phase).c_str())
|
|
.detail("DataInFlight", dataInFlight.get())
|
|
.detail("DataInFlightGate", dataInFlightGate)
|
|
.detail("MaxTLogQueueSize", tLogQueueInfo.get().first)
|
|
.detail("MaxTLogQueueGate", maxTLogQueueGate)
|
|
.detail("MaxTLogPoppedVersionLag", tLogQueueInfo.get().second)
|
|
.detail("MaxTLogPoppedVersionLagGate", maxPoppedVersionLag)
|
|
.detail("DataDistributionQueueSize", dataDistributionQueueSize.get())
|
|
.detail("DataDistributionQueueSizeGate", maxDataDistributionQueueSize)
|
|
.detail("TeamCollectionValid", teamCollectionValid.get())
|
|
.detail("MaxStorageQueueSize", storageQueueSize.get())
|
|
.detail("MaxStorageServerQueueGate", maxStorageServerQueueGate)
|
|
.detail("DataDistributionActive", dataDistributionActive.get())
|
|
.detail("StorageServersRecruiting", storageServersRecruiting.get())
|
|
.detail("NumSuccesses", numSuccesses);
|
|
|
|
if (dataInFlight.get() > dataInFlightGate || tLogQueueInfo.get().first > maxTLogQueueGate ||
|
|
tLogQueueInfo.get().second > maxPoppedVersionLag ||
|
|
dataDistributionQueueSize.get() > maxDataDistributionQueueSize ||
|
|
storageQueueSize.get() > maxStorageServerQueueGate || !dataDistributionActive.get() ||
|
|
storageServersRecruiting.get() || !teamCollectionValid.get()) {
|
|
|
|
wait(delay(1.0));
|
|
numSuccesses = 0;
|
|
} else {
|
|
if (++numSuccesses == 3) {
|
|
auto msg = "QuietDatabase" + phase + "Done";
|
|
TraceEvent(msg.c_str()).log();
|
|
break;
|
|
} else {
|
|
wait(delay(g_network->isSimulated() ? 2.0 : 30.0));
|
|
}
|
|
}
|
|
} catch (Error& e) {
|
|
TraceEvent(("QuietDatabase" + phase + "Error").c_str()).error(e, true);
|
|
if (e.code() != error_code_actor_cancelled && e.code() != error_code_attribute_not_found &&
|
|
e.code() != error_code_timed_out)
|
|
TraceEvent(("QuietDatabase" + phase + "Error").c_str()).error(e);
|
|
|
|
// Client invalid operation occurs if we don't get back a message from one of the servers, often corrected
|
|
// by retrying
|
|
if (e.code() != error_code_attribute_not_found && e.code() != error_code_timed_out)
|
|
throw;
|
|
|
|
auto evtType = "QuietDatabase" + phase + "Retry";
|
|
TraceEvent evt(evtType.c_str());
|
|
evt.error(e);
|
|
int notReadyCount = 0;
|
|
if (dataInFlight.isReady() && dataInFlight.isError()) {
|
|
auto key = "NotReady" + std::to_string(notReadyCount++);
|
|
evt.detail(key.c_str(), "dataInFlight");
|
|
}
|
|
if (tLogQueueInfo.isReady() && tLogQueueInfo.isError()) {
|
|
auto key = "NotReady" + std::to_string(notReadyCount++);
|
|
evt.detail(key.c_str(), "tLogQueueInfo");
|
|
}
|
|
if (dataDistributionQueueSize.isReady() && dataDistributionQueueSize.isError()) {
|
|
auto key = "NotReady" + std::to_string(notReadyCount++);
|
|
evt.detail(key.c_str(), "dataDistributionQueueSize");
|
|
}
|
|
if (teamCollectionValid.isReady() && teamCollectionValid.isError()) {
|
|
auto key = "NotReady" + std::to_string(notReadyCount++);
|
|
evt.detail(key.c_str(), "teamCollectionValid");
|
|
}
|
|
if (storageQueueSize.isReady() && storageQueueSize.isError()) {
|
|
auto key = "NotReady" + std::to_string(notReadyCount++);
|
|
evt.detail(key.c_str(), "storageQueueSize");
|
|
}
|
|
if (dataDistributionActive.isReady() && dataDistributionActive.isError()) {
|
|
auto key = "NotReady" + std::to_string(notReadyCount++);
|
|
evt.detail(key.c_str(), "dataDistributionActive");
|
|
}
|
|
if (storageServersRecruiting.isReady() && storageServersRecruiting.isError()) {
|
|
auto key = "NotReady" + std::to_string(notReadyCount++);
|
|
evt.detail(key.c_str(), "storageServersRecruiting");
|
|
}
|
|
wait(delay(1.0));
|
|
numSuccesses = 0;
|
|
}
|
|
}
|
|
|
|
return Void();
|
|
}
|
|
|
|
Future<Void> quietDatabase(Database const& cx,
|
|
Reference<AsyncVar<ServerDBInfo> const> const& dbInfo,
|
|
std::string phase,
|
|
int64_t dataInFlightGate,
|
|
int64_t maxTLogQueueGate,
|
|
int64_t maxStorageServerQueueGate,
|
|
int64_t maxDataDistributionQueueSize,
|
|
int64_t maxPoppedVersionLag) {
|
|
return waitForQuietDatabase(cx,
|
|
dbInfo,
|
|
phase,
|
|
dataInFlightGate,
|
|
maxTLogQueueGate,
|
|
maxStorageServerQueueGate,
|
|
maxDataDistributionQueueSize,
|
|
maxPoppedVersionLag);
|
|
}
|