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Merge commit '2a34115e65639b7aad368a148de3c4189bc34bfc' 

# Conflicts:
#	fdbserver/storageserver.actor.cpp
#	fdbserver/worker.actor.cpp
This commit is contained in:
Evan Tschannen 2018-10-23 17:05:42 -07:00
parent 0a296fc471 2a34115e65
commit 6bb2ba5d92
2 changed files with 33 additions and 19 deletions
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25
fdbserver/storageserver.actor.cpp
View File

@ -367,6 +367,7 @@ public:
CoalescedKeyRangeMap<bool, int64_t, KeyBytesMetric<int64_t>> byteSampleClears;
AsyncVar<bool> byteSampleClearsTooLarge;
Future<Void> byteSampleRecovery;
Future<Void> durableInProgress;
AsyncMap<Key,bool> watches;
int64_t watchBytes;
@ -466,6 +467,7 @@ public:
: instanceID(g_random->randomUniqueID().first()),
storage(this, storage), db(db),
lastTLogVersion(0), lastVersionWithData(0), restoredVersion(0),
durableInProgress(Void()),
versionLag(0),
updateEagerReads(0),
shardChangeCounter(0),
@ -2617,10 +2619,14 @@ ACTOR Future<Void> update( StorageServer* data, bool* pReceivedUpdate )
}
return Void(); // update will get called again ASAP
} catch (Error& e) {
if (e.code() != error_code_worker_removed && e.code() != error_code_please_reboot)
} catch (Error& err) {
state Error e = err;
if (e.code() != error_code_worker_removed && e.code() != error_code_please_reboot) {
TraceEvent(SevError, "SSUpdateError", data->thisServerID).error(e).backtrace();
throw;
} else if (e.code() == error_code_please_reboot) {
wait( data->durableInProgress );
}
throw e;
}
}
@ -2630,6 +2636,9 @@ ACTOR Future<Void> updateStorage(StorageServer* data) {
wait( data->desiredOldestVersion.whenAtLeast( data->storageVersion()+1 ) );
wait( delay(0, TaskUpdateStorage) );
state Promise<Void> durableInProgress;
data->durableInProgress = durableInProgress.getFuture();
state Version startOldestVersion = data->storageVersion();
state Version newOldestVersion = data->storageVersion();
state Version desiredVersion = data->desiredOldestVersion.get();
@ -2658,6 +2667,9 @@ ACTOR Future<Void> updateStorage(StorageServer* data) {
wait( durable );
debug_advanceMinCommittedVersion( data->thisServerID, newOldestVersion );
durableInProgress.send(Void());
wait( delay(0, TaskUpdateStorage) ); //Setting durableInProgess could cause the storage server to shut down, so delay to check for cancellation
// Taking and releasing the durableVersionLock ensures that no eager reads both begin before the commit was effective and
// are applied after we change the durable version. Also ensure that we have to lock while calling changeDurableVersion,
@ -3301,10 +3313,13 @@ bool storageServerTerminated(StorageServer& self, IKeyValueStore* persistentData
self.shards.insert( allKeys, Reference<ShardInfo>() );
// Dispose the IKVS (destroying its data permanently) only if this shutdown is definitely permanent. Otherwise just close it.
if (e.code() == error_code_worker_removed || e.code() == error_code_recruitment_failed)
if (e.code() == error_code_please_reboot) {
// do nothing.
} else if (e.code() == error_code_worker_removed || e.code() == error_code_recruitment_failed) {
persistentData->dispose();
else
} else {
persistentData->close();
}
if ( e.code() == error_code_worker_removed ||
e.code() == error_code_recruitment_failed ||

27
fdbserver/worker.actor.cpp
View File

@ -113,8 +113,12 @@ ACTOR Future<Void> handleIOErrors( Future<Void> actor, IClosable* store, UID id,
state Future<ErrorOr<Void>> storeError = actor.isReady() ? Never() : errorOr( store->getError() );
choose {
when (state ErrorOr<Void> e = wait( errorOr(actor) )) {
wait(onClosed);
if(storeError.isReady()) throw storeError.getError();
if (e.isError() && e.getError().code() == error_code_please_reboot) {
// no need to wait.
} else {
wait(onClosed);
}
if(storeError.isReady()) throw storeError.get().getError();
if (e.isError()) throw e.getError(); else return e.get();
}
when (ErrorOr<Void> e = wait( storeError )) {
@ -354,7 +358,7 @@ ACTOR Future<Void> runProfiler(ProfilerRequest req) {
}
}
ACTOR Future<Void> storageServerRollbackRebooter( Future<Void> prevStorageServer, KeyValueStoreType storeType, std::string filename, UID id, LocalityData locality, Reference<AsyncVar<ServerDBInfo>> db, std::string folder, ActorCollection* filesClosed, int64_t memoryLimit ) {
ACTOR Future<Void> storageServerRollbackRebooter( Future<Void> prevStorageServer, KeyValueStoreType storeType, std::string filename, UID id, LocalityData locality, Reference<AsyncVar<ServerDBInfo>> db, std::string folder, ActorCollection* filesClosed, int64_t memoryLimit, IKeyValueStore* store ) {
loop {
ErrorOr<Void> e = wait( errorOr( prevStorageServer) );
if (!e.isError()) return Void();
@ -362,18 +366,13 @@ ACTOR Future<Void> storageServerRollbackRebooter( Future<Void> prevStorageServer
TraceEvent("StorageServerRequestedReboot", id);
//if (BUGGIFY) wait(delay(1.0)); // This does the same thing as zombie()
// We need a new interface, since the new storageServer will do replaceInterface(). And we need to destroy
// the old one so the failure detector will know it is gone.
StorageServerInterface ssi;
ssi.uniqueID = id;
ssi.locality = locality;
ssi.initEndpoints();
auto* kv = openKVStore( storeType, filename, ssi.uniqueID, memoryLimit );
Future<Void> kvClosed = kv->onClosed();
filesClosed->add( kvClosed );
prevStorageServer = storageServer( kv, ssi, db, folder, Promise<Void>() );
prevStorageServer = handleIOErrors( prevStorageServer, kv, id, kvClosed );
prevStorageServer = storageServer( store, ssi, db, folder, Promise<Void>() );
prevStorageServer = handleIOErrors(prevStorageServer, store, id, store->onClosed());
}
}
@ -590,8 +589,8 @@ ACTOR Future<Void> workerServer( Reference<ClusterConnectionFile> connFile, Refe
Promise<Void> recovery;
Future<Void> f = storageServer( kv, recruited, dbInfo, folder, recovery );
recoveries.push_back(recovery.getFuture());
f = handleIOErrors( f, kv, s.storeID, kvClosed );
f = storageServerRollbackRebooter( f, s.storeType, s.filename, recruited.id(), recruited.locality, dbInfo, folder, &filesClosed, memoryLimit );
f = handleIOErrors( f, kv, s.storeID, kvClosed );
f = storageServerRollbackRebooter( f, s.storeType, s.filename, recruited.id(), recruited.locality, dbInfo, folder, &filesClosed, memoryLimit, kv);
errorForwarders.add( forwardError( errors, Role::STORAGE_SERVER, recruited.id(), f ) );
} else if( s.storedComponent == DiskStore::TLogData ) {
IKeyValueStore* kv = openKVStore( s.storeType, s.filename, s.storeID, memoryLimit, validateDataFiles );
@ -748,7 +747,7 @@ ACTOR Future<Void> workerServer( Reference<ClusterConnectionFile> connFile, Refe
Future<Void> s = storageServer( data, recruited, req.seedTag, storageReady, dbInfo, folder );
s = handleIOErrors(s, data, recruited.id(), kvClosed);
s = storageCache.removeOnReady( req.reqId, s );
s = storageServerRollbackRebooter( s, req.storeType, filename, recruited.id(), recruited.locality, dbInfo, folder, &filesClosed, memoryLimit );
s = storageServerRollbackRebooter( s, req.storeType, filename, recruited.id(), recruited.locality, dbInfo, folder, &filesClosed, memoryLimit, data );
errorForwarders.add( forwardError( errors, Role::STORAGE_SERVER, recruited.id(), s ) );
} else
forwardPromise( req.reply, storageCache.get( req.reqId ) );