foundationdb/fdbserver/workloads/BackupToDBCorrectness.actor...

585 lines
24 KiB
C++

/*
* BackupToDBCorrectness.actor.cpp
*
* This source file is part of the FoundationDB open source project
*
* Copyright 2013-2018 Apple Inc. and the FoundationDB project authors
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
#include "fdbrpc/simulator.h"
#include "fdbclient/BackupAgent.actor.h"
#include "fdbserver/workloads/workloads.actor.h"
#include "fdbserver/workloads/BulkSetup.actor.h"
#include "flow/actorcompiler.h" // This must be the last #include.
//A workload which test the correctness of backup and restore process
struct BackupToDBCorrectnessWorkload : TestWorkload {
double backupAfter, abortAndRestartAfter, restoreAfter;
double backupStartAt, restoreStartAfterBackupFinished, stopDifferentialAfter;
Key backupTag, restoreTag;
Key backupPrefix, extraPrefix;
bool beforePrefix;
int backupRangesCount, backupRangeLengthMax;
bool differentialBackup, performRestore, agentRequest;
Standalone<VectorRef<KeyRangeRef>> backupRanges;
static int drAgentRequests;
Database extraDB;
bool locked;
bool shareLogRange;
UID destUid;
BackupToDBCorrectnessWorkload(WorkloadContext const& wcx)
: TestWorkload(wcx) {
locked = sharedRandomNumber % 2;
backupAfter = getOption(options, LiteralStringRef("backupAfter"), 10.0);
restoreAfter = getOption(options, LiteralStringRef("restoreAfter"), 35.0);
performRestore = getOption(options, LiteralStringRef("performRestore"), true);
backupTag = getOption(options, LiteralStringRef("backupTag"), BackupAgentBase::getDefaultTag());
restoreTag = getOption(options, LiteralStringRef("restoreTag"), LiteralStringRef("restore"));
backupPrefix = getOption(options, LiteralStringRef("backupPrefix"), StringRef());
backupRangesCount = getOption(options, LiteralStringRef("backupRangesCount"), 5); //tests can hangs if set higher than 1 + BACKUP_MAP_KEY_LOWER_LIMIT
backupRangeLengthMax = getOption(options, LiteralStringRef("backupRangeLengthMax"), 1);
abortAndRestartAfter = getOption(options, LiteralStringRef("abortAndRestartAfter"), (!locked && deterministicRandom()->random01() < 0.5) ? deterministicRandom()->random01() * (restoreAfter - backupAfter) + backupAfter : 0.0);
differentialBackup = getOption(options, LiteralStringRef("differentialBackup"), deterministicRandom()->random01() < 0.5 ? true : false);
stopDifferentialAfter = getOption(options, LiteralStringRef("stopDifferentialAfter"),
differentialBackup ? deterministicRandom()->random01() * (restoreAfter - std::max(abortAndRestartAfter,backupAfter)) + std::max(abortAndRestartAfter,backupAfter) : 0.0);
agentRequest = getOption(options, LiteralStringRef("simDrAgents"), true);
shareLogRange = getOption(options, LiteralStringRef("shareLogRange"), false);
// Use sharedRandomNumber if shareLogRange is true so that we can ensure backup and DR both backup the same range
beforePrefix = shareLogRange ? (sharedRandomNumber & 1) : (deterministicRandom()->random01() < 0.5);
if (beforePrefix) {
extraPrefix = backupPrefix.withPrefix(LiteralStringRef("\xfe\xff\xfe"));
backupPrefix = backupPrefix.withPrefix(LiteralStringRef("\xfe\xff\xff"));
}
else {
extraPrefix = backupPrefix.withPrefix(LiteralStringRef("\x00\x00\x01"));
backupPrefix = backupPrefix.withPrefix(LiteralStringRef("\x00\x00\00"));
}
ASSERT(backupPrefix != StringRef());
KeyRef beginRange;
KeyRef endRange;
UID randomID = nondeterministicRandom()->randomUniqueID();
if (shareLogRange) {
if (beforePrefix)
backupRanges.push_back_deep(backupRanges.arena(), KeyRangeRef(normalKeys.begin, LiteralStringRef("\xfe\xff\xfe")));
else
backupRanges.push_back_deep(backupRanges.arena(), KeyRangeRef(strinc(LiteralStringRef("\x00\x00\x01")), normalKeys.end));
} else if(backupRangesCount <= 0) {
if (beforePrefix)
backupRanges.push_back_deep(backupRanges.arena(), KeyRangeRef(normalKeys.begin, std::min(backupPrefix, extraPrefix)));
else
backupRanges.push_back_deep(backupRanges.arena(), KeyRangeRef(strinc(std::max(backupPrefix, extraPrefix)), normalKeys.end));
} else {
// Add backup ranges
for (int rangeLoop = 0; rangeLoop < backupRangesCount; rangeLoop++)
{
// Get a random range of a random sizes
beginRange = KeyRef(backupRanges.arena(), deterministicRandom()->randomAlphaNumeric(deterministicRandom()->randomInt(1, backupRangeLengthMax + 1)));
endRange = KeyRef(backupRanges.arena(), deterministicRandom()->randomAlphaNumeric(deterministicRandom()->randomInt(1, backupRangeLengthMax + 1)));
// Add the range to the array
backupRanges.push_back_deep(backupRanges.arena(), (beginRange < endRange) ? KeyRangeRef(beginRange, endRange) : KeyRangeRef(endRange, beginRange));
// Track the added range
TraceEvent("BackupCorrectness_Range", randomID).detail("RangeBegin", (beginRange < endRange) ? printable(beginRange) : printable(endRange))
.detail("RangeEnd", (beginRange < endRange) ? printable(endRange) : printable(beginRange));
}
}
Reference<ClusterConnectionFile> extraFile(new ClusterConnectionFile(*g_simulator.extraDB));
extraDB = Database::createDatabase(extraFile, -1);
TraceEvent("BARW_Start").detail("Locked", locked);
}
virtual std::string description() {
return "BackupToDBCorrectness";
}
virtual Future<Void> setup(Database const& cx) {
return Void();
}
virtual Future<Void> start(Database const& cx) {
if (clientId != 0)
return Void();
return _start(cx, this);
}
virtual Future<bool> check(Database const& cx) {
return true;
}
virtual void getMetrics(vector<PerfMetric>& m) {
}
ACTOR static Future<Void> diffRanges(Standalone<VectorRef<KeyRangeRef>> ranges, StringRef backupPrefix, Database src, Database dest) {
state int rangeIndex;
for (rangeIndex = 0; rangeIndex < ranges.size(); ++rangeIndex) {
state KeyRangeRef range = ranges[rangeIndex];
state Key begin = range.begin;
loop {
state Transaction tr(src);
state Transaction tr2(dest);
try {
loop {
state Future<Standalone<RangeResultRef>> srcFuture = tr.getRange(KeyRangeRef(begin, range.end), 1000);
state Future<Standalone<RangeResultRef>> bkpFuture = tr2.getRange(KeyRangeRef(begin, range.end).withPrefix(backupPrefix), 1000);
wait(success(srcFuture) && success(bkpFuture));
auto src = srcFuture.get().begin();
auto bkp = bkpFuture.get().begin();
while (src != srcFuture.get().end() && bkp != bkpFuture.get().end()) {
KeyRef bkpKey = bkp->key.substr(backupPrefix.size());
if (src->key != bkpKey && src->value != bkp->value) {
TraceEvent(SevError, "MismatchKeyAndValue").detail("SrcKey", printable(src->key)).detail("SrcVal", printable(src->value)).detail("BkpKey", printable(bkpKey)).detail("BkpVal", printable(bkp->value));
}
else if (src->key != bkpKey) {
TraceEvent(SevError, "MismatchKey").detail("SrcKey", printable(src->key)).detail("SrcVal", printable(src->value)).detail("BkpKey", printable(bkpKey)).detail("BkpVal", printable(bkp->value));
}
else if (src->value != bkp->value) {
TraceEvent(SevError, "MismatchValue").detail("SrcKey", printable(src->key)).detail("SrcVal", printable(src->value)).detail("BkpKey", printable(bkpKey)).detail("BkpVal", printable(bkp->value));
}
begin = std::min(src->key, bkpKey);
if (src->key == bkpKey) {
++src;
++bkp;
}
else if (src->key < bkpKey) {
++src;
}
else {
++bkp;
}
}
while (src != srcFuture.get().end() && !bkpFuture.get().more) {
TraceEvent(SevError, "MissingBkpKey").detail("SrcKey", printable(src->key)).detail("SrcVal", printable(src->value));
begin = src->key;
++src;
}
while (bkp != bkpFuture.get().end() && !srcFuture.get().more) {
TraceEvent(SevError, "MissingSrcKey").detail("BkpKey", printable(bkp->key.substr(backupPrefix.size()))).detail("BkpVal", printable(bkp->value));
begin = bkp->key;
++bkp;
}
if (!srcFuture.get().more && !bkpFuture.get().more) {
break;
}
begin = keyAfter(begin);
}
break;
}
catch (Error &e) {
wait(tr.onError(e));
}
}
}
return Void();
}
ACTOR static Future<Void> doBackup(BackupToDBCorrectnessWorkload* self, double startDelay, DatabaseBackupAgent* backupAgent, Database cx,
Key tag, Standalone<VectorRef<KeyRangeRef>> backupRanges, double stopDifferentialDelay, Promise<Void> submitted) {
state UID randomID = nondeterministicRandom()->randomUniqueID();
state Future<Void> stopDifferentialFuture = delay(stopDifferentialDelay);
wait( delay( startDelay ));
if (startDelay || BUGGIFY) {
TraceEvent("BARW_DoBackupAbortBackup1", randomID).detail("Tag", printable(tag)).detail("StartDelay", startDelay);
try {
wait(backupAgent->abortBackup(cx, tag));
}
catch (Error& e) {
TraceEvent("BARW_DoBackupAbortBackupException", randomID).error(e).detail("Tag", printable(tag));
if (e.code() != error_code_backup_unneeded)
throw;
}
wait(backupAgent->unlockBackup(cx, tag));
}
// The range clear and submitBackup is being done here in the SAME transaction (which does make SubmitBackup's range emptiness check
// pointless in this test) because separating them causes rare errors where the SubmitBackup commit result is indeterminite but the
// submission was in fact successful and the backup actually completes before the retry of SubmitBackup so this second call to submit
// fails because the destination range is no longer empty.
TraceEvent("BARW_DoBackupClearAndSubmitBackup", randomID).detail("Tag", printable(tag)).detail("StopWhenDone", stopDifferentialDelay ? "False" : "True");
try {
state Reference<ReadYourWritesTransaction> tr2(new ReadYourWritesTransaction(self->extraDB));
loop{
try {
for (auto r : self->backupRanges) {
if (!r.empty()) {
auto targetRange = r.withPrefix(self->backupPrefix);
printf("Clearing %s in destination\n", printable(targetRange).c_str());
tr2->addReadConflictRange(targetRange);
tr2->clear(targetRange);
}
}
wait(backupAgent->submitBackup(tr2, tag, backupRanges, stopDifferentialDelay ? false : true, self->backupPrefix, StringRef(), self->locked));
wait(tr2->commit());
break;
}
catch (Error &e) {
wait(tr2->onError(e));
}
}
}
catch (Error &e) {
TraceEvent("BARW_DoBackupSubmitBackupException", randomID).error(e).detail("Tag", printable(tag));
if (e.code() != error_code_backup_unneeded && e.code() != error_code_backup_duplicate) {
throw e;
}
}
submitted.send(Void());
state UID logUid = wait(backupAgent->getLogUid(cx, tag));
// Stop the differential backup, if enabled
if (stopDifferentialDelay) {
TEST(!stopDifferentialFuture.isReady()); //Restore starts at specified time
wait(stopDifferentialFuture);
TraceEvent("BARW_DoBackupWaitToDiscontinue", randomID).detail("Tag", printable(tag)).detail("DifferentialAfter", stopDifferentialDelay);
state bool aborted = false;
try {
if (BUGGIFY) {
TraceEvent("BARW_DoBackupWaitForRestorable", randomID).detail("Tag", printable(tag));
// Wait until the backup is in a restorable state
state int resultWait = wait(backupAgent->waitBackup(cx, tag, false));
TraceEvent("BARW_LastBackupFolder", randomID).detail("BackupTag", printable(tag))
.detail("LogUid", logUid).detail("WaitStatus", resultWait);
// Abort the backup, if not the first backup because the second backup may have aborted the backup by now
if (startDelay) {
TraceEvent("BARW_DoBackupAbortBackup2", randomID).detail("Tag", printable(tag)).detail("WaitStatus", resultWait);
aborted = true;
wait(backupAgent->abortBackup(cx, tag));
}
else {
TraceEvent("BARW_DoBackupDiscontinueBackup", randomID).detail("Tag", printable(tag)).detail("DifferentialAfter", stopDifferentialDelay);
wait(backupAgent->discontinueBackup(cx, tag));
}
}
else {
TraceEvent("BARW_DoBackupDiscontinueBackup", randomID).detail("Tag", printable(tag)).detail("DifferentialAfter", stopDifferentialDelay);
wait(backupAgent->discontinueBackup(cx, tag));
}
}
catch (Error& e) {
TraceEvent("BARW_DoBackupDiscontinueBackupException", randomID).error(e).detail("Tag", printable(tag));
if (e.code() != error_code_backup_unneeded && e.code() != error_code_backup_duplicate)
throw;
}
if(aborted) {
wait(backupAgent->unlockBackup(cx, tag));
}
}
// Wait for the backup to complete
TraceEvent("BARW_DoBackupWaitBackup", randomID).detail("Tag", printable(tag));
UID _destUid = wait(backupAgent->getDestUid(cx, logUid));
self->destUid = _destUid;
state int statusValue = wait(backupAgent->waitBackup(cx, tag, true));
wait(backupAgent->unlockBackup(cx, tag));
state std::string statusText;
std::string _statusText = wait( backupAgent->getStatus(cx, 5, tag) );
statusText = _statusText;
// Can we validate anything about status?
TraceEvent("BARW_DoBackupComplete", randomID).detail("Tag", printable(tag))
.detail("Status", statusText).detail("StatusValue", statusValue);
return Void();
}
ACTOR static Future<Void> checkData(Database cx, UID logUid, UID destUid, UID randomID, Key tag, DatabaseBackupAgent* backupAgent, bool shareLogRange) {
state Key backupAgentKey = uidPrefixKey(logRangesRange.begin, logUid);
state Key backupLogValuesKey = uidPrefixKey(backupLogKeys.begin, destUid);
state Key backupLatestVersionsPath = uidPrefixKey(backupLatestVersionsPrefix, destUid);
state Key backupLatestVersionsKey = uidPrefixKey(backupLatestVersionsPath, logUid);
state int displaySystemKeys = 0;
// Ensure that there is no left over key within the backup subspace
loop {
state Reference<ReadYourWritesTransaction> tr(new ReadYourWritesTransaction(cx));
TraceEvent("BARW_CheckLeftoverKeys", randomID).detail("BackupTag", printable(tag));
try {
tr->setOption(FDBTransactionOptions::ACCESS_SYSTEM_KEYS);
// Check the left over tasks
// We have to wait for the list to empty since an abort and get status
// can leave extra tasks in the queue
TraceEvent("BARW_CheckLeftoverTasks", randomID).detail("BackupTag", printable(tag));
state int64_t taskCount = wait( backupAgent->getTaskCount(tr) );
state int waitCycles = 0;
if ((taskCount) && false) {
TraceEvent("BARW_EndingNonzeroTaskCount", randomID).detail("BackupTag", printable(tag)).detail("TaskCount", taskCount).detail("WaitCycles", waitCycles);
printf("EndingNonZeroTasks: %ld\n", (long) taskCount);
wait(TaskBucket::debugPrintRange(cx, LiteralStringRef("\xff"), StringRef()));
}
loop {
waitCycles ++;
TraceEvent("BARW_NonzeroTaskWait", randomID).detail("BackupTag", printable(tag)).detail("TaskCount", taskCount).detail("WaitCycles", waitCycles);
printf("%.6f %-10s Wait #%4d for %lld tasks to end\n", now(), randomID.toString().c_str(), waitCycles, (long long) taskCount);
wait(delay(5.0));
tr->commit();
tr = Reference<ReadYourWritesTransaction>(new ReadYourWritesTransaction(cx));
int64_t _taskCount = wait( backupAgent->getTaskCount(tr) );
taskCount = _taskCount;
if (!taskCount) {
break;
}
}
if (taskCount) {
displaySystemKeys ++;
TraceEvent(SevError, "BARW_NonzeroTaskCount", randomID).detail("BackupTag", printable(tag)).detail("TaskCount", taskCount).detail("WaitCycles", waitCycles);
printf("BackupCorrectnessLeftoverLogTasks: %ld\n", (long) taskCount);
}
Standalone<RangeResultRef> agentValues = wait(tr->getRange(KeyRange(KeyRangeRef(backupAgentKey, strinc(backupAgentKey))), 100));
// Error if the system keyspace for the backup tag is not empty
if (agentValues.size() > 0) {
displaySystemKeys++;
printf("BackupCorrectnessLeftoverMutationKeys: (%d) %s\n", agentValues.size(), printable(backupAgentKey).c_str());
TraceEvent(SevError, "BackupCorrectnessLeftoverMutationKeys", randomID).detail("BackupTag", printable(tag))
.detail("LeftoverKeys", agentValues.size()).detail("KeySpace", printable(backupAgentKey));
for (auto & s : agentValues) {
TraceEvent("BARW_LeftoverKey", randomID).detail("Key", printable(StringRef(s.key.toString()))).detail("Value", printable(StringRef(s.value.toString())));
printf(" Key: %-50s Value: %s\n", printable(StringRef(s.key.toString())).c_str(), printable(StringRef(s.value.toString())).c_str());
}
}
else {
printf("No left over backup agent configuration keys\n");
}
Optional<Value> latestVersion = wait(tr->get(backupLatestVersionsKey));
if (latestVersion.present()) {
TraceEvent(SevError, "BackupCorrectnessLeftoverVersionKey", randomID).detail("BackupTag", printable(tag)).detail("Key", backupLatestVersionsKey.printable()).detail("Value", BinaryReader::fromStringRef<Version>(latestVersion.get(), Unversioned()));
} else {
printf("No left over backup version key\n");
}
Standalone<RangeResultRef> versions = wait(tr->getRange(KeyRange(KeyRangeRef(backupLatestVersionsPath, strinc(backupLatestVersionsPath))), 1));
if (!shareLogRange || !versions.size()) {
Standalone<RangeResultRef> logValues = wait(tr->getRange(KeyRange(KeyRangeRef(backupLogValuesKey, strinc(backupLogValuesKey))), 100));
// Error if the log/mutation keyspace for the backup tag is not empty
if (logValues.size() > 0) {
displaySystemKeys++;
printf("BackupCorrectnessLeftoverLogKeys: (%d) %s\n", logValues.size(), printable(backupLogValuesKey).c_str());
TraceEvent(SevError, "BackupCorrectnessLeftoverLogKeys", randomID).detail("BackupTag", printable(tag))
.detail("LeftoverKeys", logValues.size()).detail("KeySpace", printable(backupLogValuesKey)).detail("Version", decodeBKMutationLogKey(logValues[0].key).first);
for (auto & s : logValues) {
TraceEvent("BARW_LeftoverKey", randomID).detail("Key", printable(StringRef(s.key.toString()))).detail("Value", printable(StringRef(s.value.toString())));
printf(" Key: %-50s Value: %s\n", printable(StringRef(s.key.toString())).c_str(), printable(StringRef(s.value.toString())).c_str());
}
}
else {
printf("No left over backup log keys\n");
}
}
break;
}
catch (Error &e) {
TraceEvent("BARW_CheckException", randomID).error(e);
wait(tr->onError(e));
}
}
if (displaySystemKeys) {
wait(TaskBucket::debugPrintRange(cx, LiteralStringRef("\xff"), StringRef()));
}
return Void();
}
ACTOR static Future<Void> _start(Database cx, BackupToDBCorrectnessWorkload* self) {
state DatabaseBackupAgent backupAgent(cx);
state DatabaseBackupAgent restoreAgent(self->extraDB);
state Future<Void> extraBackup;
state bool extraTasks = false;
TraceEvent("BARW_Arguments").detail("BackupTag", printable(self->backupTag)).detail("BackupAfter", self->backupAfter)
.detail("AbortAndRestartAfter", self->abortAndRestartAfter).detail("DifferentialAfter", self->stopDifferentialAfter);
state UID randomID = nondeterministicRandom()->randomUniqueID();
// Increment the backup agent requets
if (self->agentRequest) {
BackupToDBCorrectnessWorkload::drAgentRequests++;
}
try{
state Future<Void> startRestore = delay(self->restoreAfter);
// backup
wait(delay(self->backupAfter));
TraceEvent("BARW_DoBackup1", randomID).detail("Tag", printable(self->backupTag));
state Promise<Void> submitted;
state Future<Void> b = doBackup(self, 0, &backupAgent, self->extraDB, self->backupTag, self->backupRanges, self->stopDifferentialAfter, submitted);
if (self->abortAndRestartAfter) {
TraceEvent("BARW_DoBackup2", randomID).detail("Tag", printable(self->backupTag)).detail("AbortWait", self->abortAndRestartAfter);
wait(submitted.getFuture());
b = b && doBackup(self, self->abortAndRestartAfter, &backupAgent, self->extraDB, self->backupTag, self->backupRanges, self->stopDifferentialAfter, Promise<Void>());
}
TraceEvent("BARW_DoBackupWait", randomID).detail("BackupTag", printable(self->backupTag)).detail("AbortAndRestartAfter", self->abortAndRestartAfter);
wait(b);
TraceEvent("BARW_DoBackupDone", randomID).detail("BackupTag", printable(self->backupTag)).detail("AbortAndRestartAfter", self->abortAndRestartAfter);
state UID logUid = wait(backupAgent.getLogUid(self->extraDB, self->backupTag));
// Occasionally start yet another backup that might still be running when we restore
if (!self->locked && BUGGIFY) {
TraceEvent("BARW_SubmitBackup2", randomID).detail("Tag", printable(self->backupTag));
try {
extraBackup = backupAgent.submitBackup(self->extraDB, self->backupTag, self->backupRanges, true, self->extraPrefix, StringRef(), self->locked);
}
catch (Error& e) {
TraceEvent("BARW_SubmitBackup2Exception", randomID).error(e).detail("BackupTag", printable(self->backupTag));
if (e.code() != error_code_backup_unneeded && e.code() != error_code_backup_duplicate)
throw;
}
}
TEST(!startRestore.isReady()); //Restore starts at specified time
wait(startRestore);
if (self->performRestore) {
// restore database
TraceEvent("BARW_Restore", randomID).detail("RestoreAfter", self->restoreAfter).detail("BackupTag", printable(self->restoreTag));
//wait(diffRanges(self->backupRanges, self->backupPrefix, cx, self->extraDB));
state Transaction tr3(cx);
loop {
try {
for (auto r : self->backupRanges) {
if(!r.empty()) {
tr3.addReadConflictRange(r);
tr3.clear(r);
}
}
wait( tr3.commit() );
break;
} catch( Error &e ) {
wait( tr3.onError(e) );
}
}
Standalone<VectorRef<KeyRangeRef>> restoreRange;
for (auto r : self->backupRanges) {
restoreRange.push_back_deep(restoreRange.arena(), KeyRangeRef( r.begin.withPrefix(self->backupPrefix), r.end.withPrefix(self->backupPrefix) ) );
}
try {
wait(restoreAgent.submitBackup(cx, self->restoreTag, restoreRange, true, StringRef(), self->backupPrefix, self->locked));
}
catch (Error& e) {
TraceEvent("BARW_DoBackupSubmitBackupException", randomID).error(e).detail("Tag", printable(self->restoreTag));
if (e.code() != error_code_backup_unneeded && e.code() != error_code_backup_duplicate)
throw;
}
wait(success(restoreAgent.waitBackup(cx, self->restoreTag)));
wait(restoreAgent.unlockBackup(cx, self->restoreTag));
}
if (extraBackup.isValid()) {
TraceEvent("BARW_WaitExtraBackup", randomID).detail("BackupTag", printable(self->backupTag));
extraTasks = true;
try {
wait(extraBackup);
}
catch (Error& e) {
TraceEvent("BARW_ExtraBackupException", randomID).error(e).detail("BackupTag", printable(self->backupTag));
if (e.code() != error_code_backup_unneeded && e.code() != error_code_backup_duplicate)
throw;
}
TraceEvent("BARW_AbortBackupExtra", randomID).detail("BackupTag", printable(self->backupTag));
try {
wait(backupAgent.abortBackup(self->extraDB, self->backupTag));
}
catch (Error& e) {
TraceEvent("BARW_AbortBackupExtraException", randomID).error(e);
if (e.code() != error_code_backup_unneeded)
throw;
}
}
wait( checkData(self->extraDB, logUid, self->destUid, randomID, self->backupTag, &backupAgent, self->shareLogRange) );
if (self->performRestore) {
state UID restoreUid = wait(backupAgent.getLogUid(self->extraDB, self->restoreTag));
wait( checkData(cx, restoreUid, restoreUid, randomID, self->restoreTag, &restoreAgent, self->shareLogRange) );
}
TraceEvent("BARW_Complete", randomID).detail("BackupTag", printable(self->backupTag));
// Decrement the backup agent requets
if (self->agentRequest) {
BackupToDBCorrectnessWorkload::drAgentRequests--;
}
// SOMEDAY: Remove after backup agents can exist quiescently
if ((g_simulator.drAgents == ISimulator::BackupToDB) && (!BackupToDBCorrectnessWorkload::drAgentRequests)) {
g_simulator.drAgents = ISimulator::NoBackupAgents;
}
}
catch (Error& e) {
TraceEvent(SevError, "BackupAndRestoreCorrectness").error(e);
throw;
}
return Void();
}
};
int BackupToDBCorrectnessWorkload::drAgentRequests = 0;
WorkloadFactory<BackupToDBCorrectnessWorkload> BackupToDBCorrectnessWorkloadFactory("BackupToDBCorrectness");