128 lines
5.0 KiB
C++
128 lines
5.0 KiB
C++
/*
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* Rollback.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 "fdbclient/NativeAPI.actor.h"
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#include "fdbserver/TesterInterface.actor.h"
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#include "fdbserver/workloads/workloads.actor.h"
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#include "fdbrpc/simulator.h"
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#include "fdbserver/MasterInterface.h"
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#include "fdbclient/SystemData.h"
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#include "fdbserver/ServerDBInfo.h"
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#include "flow/actorcompiler.h" // This must be the last #include.
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// Choose a random proxy and a random tLog, represented as unclogTlog.
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// The workload first clogs network link between the chosen proxy and all tLogs but the unclogTlog;
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// While the network is still clogged, the workload kills the proxy and clogs the unclogged tlog's interface.
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// Note: The clogged network link's latency will become "clogDuration".
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struct RollbackWorkload : TestWorkload {
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bool enableFailures, multiple, enabled;
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double meanDelay, clogDuration, testDuration;
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RollbackWorkload( WorkloadContext const& wcx )
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: TestWorkload(wcx)
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{
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enabled = !clientId; // only do this on the "first" client
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meanDelay = getOption( options, LiteralStringRef("meanDelay"), 20.0 ); // Only matters if multiple==true
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clogDuration = getOption( options, LiteralStringRef("clogDuration"), 3.0 );
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testDuration = getOption( options, LiteralStringRef("testDuration"), 10.0 );
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enableFailures = getOption( options, LiteralStringRef("enableFailures"), false );
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multiple = getOption( options, LiteralStringRef("multiple"), true );
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}
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std::string description() const override { return "RollbackWorkload"; }
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Future<Void> setup(Database const& cx) override { return Void(); }
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Future<Void> start(Database const& cx) override {
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if (&g_simulator == g_network && enabled)
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return timeout(
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reportErrors( rollbackFailureWorker( cx, this, meanDelay ), "RollbackFailureWorkerError" ),
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testDuration, Void() );
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return Void();
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}
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Future<bool> check(Database const& cx) override { return true; }
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void getMetrics(vector<PerfMetric>& m) override {}
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ACTOR Future<Void> simulateFailure( Database cx, RollbackWorkload* self ) {
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state ServerDBInfo system = self->dbInfo->get();
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auto tlogs = system.logSystemConfig.allPresentLogs();
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if (tlogs.empty() || system.client.commitProxies.empty()) {
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TraceEvent(SevInfo, "UnableToTriggerRollback").detail("Reason", "No tlogs in System Map");
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return Void();
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}
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state CommitProxyInterface proxy = deterministicRandom()->randomChoice(system.client.commitProxies);
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int utIndex = deterministicRandom()->randomInt(0, tlogs.size());
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state NetworkAddress uncloggedTLog = tlogs[utIndex].address();
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for(int t=0; t<tlogs.size(); t++)
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if (t != utIndex)
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if( tlogs[ t ].address().ip == proxy.address().ip ) {
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TraceEvent(SevInfo, "UnableToTriggerRollback").detail("Reason", "proxy-clogged tLog shared IPs");
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return Void();
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}
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TraceEvent("AttemptingToTriggerRollback")
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.detail("CommitProxy", proxy.address())
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.detail("UncloggedTLog", uncloggedTLog);
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for (int t = 0; t < tlogs.size(); t++) {
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if (t != utIndex) {
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g_simulator.clogPair(
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proxy.address().ip,
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tlogs[t].address().ip,
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self->clogDuration );
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//g_simulator.clogInterface( g_simulator.getProcess( system.tlogs[t].commit.getEndpoint() ), self->clogDuration, ClogAll );
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}
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}
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// While the clogged machines are still clogged...
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wait( delay( self->clogDuration/3 ) );
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system = self->dbInfo->get();
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// Kill the proxy and clog the unclogged tlog
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if (self->enableFailures) {
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g_simulator.killProcess( g_simulator.getProcessByAddress( proxy.address() ), ISimulator::KillInstantly );
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g_simulator.clogInterface( uncloggedTLog.ip, self->clogDuration, ClogAll );
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} else {
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g_simulator.clogInterface( proxy.address().ip, self->clogDuration, ClogAll );
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g_simulator.clogInterface( uncloggedTLog.ip, self->clogDuration, ClogAll );
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}
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return Void();
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}
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ACTOR Future<Void> rollbackFailureWorker( Database cx, RollbackWorkload* self, double delay ) {
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state PromiseStream<Void> events;
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if (self->multiple) {
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state double lastTime = now();
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loop {
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wait( poisson( &lastTime, delay ) );
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wait( self->simulateFailure( cx, self ) );
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}
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} else {
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wait( ::delay( deterministicRandom()->random01()*std::max(0.0, self->testDuration - self->clogDuration*13.0) ) );
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wait( self->simulateFailure(cx, self) );
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}
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return Void();
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}
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};
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WorkloadFactory<RollbackWorkload> RollbackWorkloadFactory("Rollback");
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