private URI startHaCommunication(
LifeSupport haCommunicationLife,
NeoStoreXaDataSource nioneoDataSource,
URI me,
URI masterUri) {
MasterClient master =
newMasterClient(masterUri, nioneoDataSource.getStoreId(), haCommunicationLife);
Slave slaveImpl =
new SlaveImpl(
nioneoDataSource.getStoreId(), resolver.resolveDependency(UpdatePuller.class));
SlaveServer server =
new SlaveServer(
slaveImpl, serverConfig(), logging, resolver.resolveDependency(Monitors.class));
masterDelegateHandler.setDelegate(master);
haCommunicationLife.add(slaveImpl);
haCommunicationLife.add(server);
haCommunicationLife.start();
URI slaveHaURI = createHaURI(me, server);
clusterMemberAvailability.memberIsAvailable(HighAvailabilityModeSwitcher.SLAVE, slaveHaURI);
return slaveHaURI;
}
private IndexingModule buildIndexing(
Config config,
JobScheduler scheduler,
SchemaIndexProvider indexProvider,
LockService lockService,
TokenNameLookup tokenNameLookup,
Logging logging,
IndexingService.Monitor indexingServiceMonitor,
NeoStore neoStore,
UpdateableSchemaState updateableSchemaState) {
final DefaultSchemaIndexProviderMap providerMap =
new DefaultSchemaIndexProviderMap(indexProvider);
final IndexingService indexingService =
IndexingService.create(
new IndexSamplingConfig(config),
scheduler,
providerMap,
new NeoStoreIndexStoreView(lockService, neoStore),
tokenNameLookup,
updateableSchemaState,
toList(new SchemaStorage(neoStore.getSchemaStore()).allIndexRules()),
logging,
indexingServiceMonitor);
final IntegrityValidator integrityValidator = new IntegrityValidator(neoStore, indexingService);
// TODO Move to constructor
final LabelScanStore labelScanStore =
dependencyResolver
.resolveDependency(
LabelScanStoreProvider.class, LabelScanStoreProvider.HIGHEST_PRIORITIZED)
.getLabelScanStore();
life.add(indexingService);
life.add(labelScanStore);
return new IndexingModule() {
@Override
public IndexingService indexingService() {
return indexingService;
}
@Override
public LabelScanStore labelScanStore() {
return labelScanStore;
}
@Override
public IntegrityValidator integrityValidator() {
return integrityValidator;
}
@Override
public SchemaIndexProviderMap schemaIndexProviderMap() {
return providerMap;
}
};
}
@Test
public void shouldSendAMessageFromAClientWhichIsReceivedByAServer() throws Exception {
// given
CountDownLatch latch = new CountDownLatch(1);
LifeSupport life = new LifeSupport();
Server server1 =
new Server(
latch,
MapUtil.stringMap(
ClusterSettings.cluster_server.name(),
"localhost:1234",
ClusterSettings.server_id.name(),
"1",
ClusterSettings.initial_hosts.name(),
"localhost:1234,localhost:1235"));
life.add(server1);
Server server2 =
new Server(
latch,
MapUtil.stringMap(
ClusterSettings.cluster_server.name(),
"localhost:1235",
ClusterSettings.server_id.name(),
"2",
ClusterSettings.initial_hosts.name(),
"localhost:1234,localhost:1235"));
life.add(server2);
life.start();
// when
server1.process(
Message.to(TestMessage.helloWorld, URI.create("cluster://127.0.0.1:1235"), "Hello World"));
// then
latch.await(5, TimeUnit.SECONDS);
assertTrue("server1 should have processed the message", server1.processedMessage());
assertTrue("server2 should have processed the message", server2.processedMessage());
life.shutdown();
}
@Override
protected IdGeneratorFactory createIdGeneratorFactory() {
idGeneratorFactory = new HaIdGeneratorFactory(master, logging);
highAvailabilityModeSwitcher =
new HighAvailabilityModeSwitcher(
clusterClient,
masterDelegateInvocationHandler,
clusterMemberAvailability,
memberStateMachine,
this,
(HaIdGeneratorFactory) idGeneratorFactory,
config,
logging,
updateableSchemaState,
kernelExtensions.listFactories(),
monitors);
/*
* We always need the mode switcher and we need it to restart on switchover.
*/
paxosLife.add(highAvailabilityModeSwitcher);
/*
* We don't really switch to master here. We just need to initialize the idGenerator so the initial store
* can be started (if required). In any case, the rest of the database is in pending state, so nothing will
* happen until events start arriving and that will set us to the proper state anyway.
*/
((HaIdGeneratorFactory) idGeneratorFactory).switchToMaster();
return idGeneratorFactory;
}
private NeoStoreModule buildNeoStore(
StoreFactory storeFactory,
final LabelTokenHolder labelTokens,
final RelationshipTypeTokenHolder relationshipTypeTokens,
final PropertyKeyTokenHolder propertyKeyTokenHolder) {
final NeoStore neoStore = storeFactory.newNeoStore(false, true);
life.add(
new LifecycleAdapter() {
@Override
public void start() {
if (startupStatistics.numberOfRecoveredTransactions() > 0) {
neoStore.rebuildIdGenerators();
}
neoStoreModule.neoStore().makeStoreOk();
propertyKeyTokenHolder.addTokens(
neoStoreModule.neoStore().getPropertyKeyTokenStore().getTokens(Integer.MAX_VALUE));
relationshipTypeTokens.addTokens(
neoStoreModule
.neoStore()
.getRelationshipTypeTokenStore()
.getTokens(Integer.MAX_VALUE));
labelTokens.addTokens(
neoStoreModule.neoStore().getLabelTokenStore().getTokens(Integer.MAX_VALUE));
}
});
return new NeoStoreModule() {
@Override
public NeoStore neoStore() {
return neoStore;
}
};
}
public BatchingNeoStore(
FileSystemAbstraction fileSystem,
String storeDir,
Configuration config,
Monitor writeMonitor,
Logging logging,
WriterFactory writerFactory,
Monitors monitors) {
this.config = config;
this.writeMonitor = writeMonitor;
this.writerFactory = writerFactory;
this.monitors = monitors;
this.fileSystem = life.add(new ChannelReusingFileSystemAbstraction(fileSystem));
this.logger = logging.getMessagesLog(getClass());
this.neo4jConfig =
configForStoreDir(
new Config(
stringMap(dense_node_threshold.name(), valueOf(config.denseNodeThreshold())),
GraphDatabaseSettings.class),
new File(storeDir));
this.neoStore = newBatchWritingNeoStore();
this.propertyKeyRepository =
new BatchingPropertyKeyTokenRepository(neoStore.getPropertyKeyTokenStore());
this.labelRepository = new BatchingLabelTokenRepository(neoStore.getLabelTokenStore());
this.relationshipTypeRepository =
new BatchingRelationshipTypeTokenRepository(neoStore.getRelationshipTypeTokenStore());
life.start();
}
@Override
protected IdGeneratorFactory createIdGeneratorFactory() {
idGeneratorFactory = new HaIdGeneratorFactory(master, memberStateMachine, logging);
highAvailabilityModeSwitcher =
new HighAvailabilityModeSwitcher(
masterDelegateInvocationHandler,
clusterMemberAvailability,
memberStateMachine,
this,
(HaIdGeneratorFactory) idGeneratorFactory,
config,
logging);
/*
* We always need the mode switcher and we need it to restart on switchover. So:
* 1) if in compatibility mode, it must be added in all 3 - to start on start and restart on switchover
* 2) if not in compatibility mode it must be added in paxosLife, which is started anyway.
*/
paxosLife.add(highAvailabilityModeSwitcher);
if (compatibilityMode) {
compatibilityLifecycle.add(1, highAvailabilityModeSwitcher);
life.add(highAvailabilityModeSwitcher);
}
return idGeneratorFactory;
}
private Server(final CountDownLatch latch, final Map<String, String> config) {
final Config conf = new Config(config, ClusterSettings.class);
networkReceiver =
life.add(
new NetworkReceiver(
new NetworkReceiver.Configuration() {
@Override
public HostnamePort clusterServer() {
return conf.get(ClusterSettings.cluster_server);
}
},
new DevNullLoggingService()));
networkSender =
life.add(
new NetworkSender(
new NetworkSender.Configuration() {
@Override
public int defaultPort() {
return 5001;
}
@Override
public int port() {
return conf.get(ClusterSettings.cluster_server).getPort();
}
},
networkReceiver,
new DevNullLoggingService()));
life.add(
new LifecycleAdapter() {
@Override
public void start() throws Throwable {
networkReceiver.addMessageProcessor(
new MessageProcessor() {
@Override
public boolean process(Message<? extends MessageType> message) {
// server receives a message
processedMessage.set(true);
latch.countDown();
return true;
}
});
}
});
}
@Override
public void init() throws Throwable {
client = new ZooClient(logger.getLogger(ZooClient.class), config);
life.add(client);
client.addZooListener(new ZooHaEventListener());
client.addCompatibilityModeListener(new ZooCompatibilityModeListener());
life.init();
}
@Override
public void init() {
luceneDataSource = life.add(new LuceneDataSource(config, indexStore, fileSystemAbstraction));
// TODO Don't do this here, do proper life cycle management
life.start();
LuceneIndexImplementation indexImplementation = new LuceneIndexImplementation(luceneDataSource);
indexProviders.registerIndexProvider(
LuceneIndexImplementation.SERVICE_NAME, indexImplementation);
}
@Override
public void start() throws Throwable {
Clusters clusters = clustersProvider.clusters();
life = new LifeSupport();
for (int i = 0; i < clusters.getClusters().size(); i++) {
Clusters.Cluster cluster = clusters.getClusters().get(i);
ManagedCluster managedCluster = new ManagedCluster(cluster);
clusterMap.put(cluster.getName(), managedCluster);
life.add(managedCluster);
}
life.start();
}
/** Public for testing purpose. Do not use. */
public synchronized void registerDataSource(final XaDataSource dataSource) {
dataSources.put(dataSource.getName(), dataSource);
branchIdMapping.put(UTF8.decode(dataSource.getBranchId()), dataSource);
sourceIdMapping.put(dataSource.getName(), dataSource.getBranchId());
life.add(dataSource);
if (life.getStatus().equals(LifecycleStatus.STARTED)) {
Listeners.notifyListeners(
dsRegistrationListeners,
new Listeners.Notification<DataSourceRegistrationListener>() {
@Override
public void notify(DataSourceRegistrationListener listener) {
listener.registeredDataSource(dataSource);
}
});
}
}
@Override
public void start() throws Throwable {
life = new LifeSupport();
for (XaDataSource ds : dataSources.values()) {
life.add(ds);
}
life.start();
for (DataSourceRegistrationListener listener : dsRegistrationListeners) {
try {
for (XaDataSource ds : dataSources.values()) {
listener.registeredDataSource(ds);
}
} catch (Throwable t) {
msgLog.logMessage("Failed when notifying registering listener", t);
}
}
}
@Override
public void start() throws Throwable {
Clusters clusters = clustersProvider.clusters();
life = new LifeSupport();
// Started so instances added here will be started immediately, and in case of exceptions they
// can be
// shutdown() or stop()ped properly
life.start();
for (int i = 0; i < clusters.getClusters().size(); i++) {
Clusters.Cluster cluster = clusters.getClusters().get(i);
ManagedCluster managedCluster = new ManagedCluster(cluster);
clusterMap.put(cluster.getName(), managedCluster);
life.add(managedCluster);
}
}
@Override
protected TxHook createTxHook() {
clusterEventsDelegateInvocationHandler = new DelegateInvocationHandler();
memberContextDelegateInvocationHandler = new DelegateInvocationHandler();
clusterMemberAvailabilityDelegateInvocationHandler = new DelegateInvocationHandler();
clusterEvents =
(ClusterMemberEvents)
Proxy.newProxyInstance(
ClusterMemberEvents.class.getClassLoader(),
new Class[] {ClusterMemberEvents.class, Lifecycle.class},
clusterEventsDelegateInvocationHandler);
memberContext =
(HighAvailabilityMemberContext)
Proxy.newProxyInstance(
HighAvailabilityMemberContext.class.getClassLoader(),
new Class[] {HighAvailabilityMemberContext.class},
memberContextDelegateInvocationHandler);
clusterMemberAvailability =
(ClusterMemberAvailability)
Proxy.newProxyInstance(
ClusterMemberAvailability.class.getClassLoader(),
new Class[] {ClusterMemberAvailability.class},
clusterMemberAvailabilityDelegateInvocationHandler);
/*
* We need to create these anyway since even in compatibility mode we'll use them for switchover. If it turns
* out we are not going to need zookeeper, just assign them to the class fields. The difference is in when
* they start().
*/
ElectionCredentialsProvider electionCredentialsProvider =
config.get(HaSettings.slave_only)
? new NotElectableElectionCredentialsProvider()
: new DefaultElectionCredentialsProvider(
config.get(ClusterSettings.server_id),
new OnDiskLastTxIdGetter(new File(getStoreDir())),
new HighAvailabilityMemberInfoProvider() {
@Override
public HighAvailabilityMemberState getHighAvailabilityMemberState() {
return memberStateMachine.getCurrentState();
}
});
clusterClient =
new ClusterClient(ClusterClient.adapt(config), logging, electionCredentialsProvider);
PaxosClusterMemberEvents localClusterEvents =
new PaxosClusterMemberEvents(
clusterClient,
clusterClient,
clusterClient,
clusterClient,
logging,
new Predicate<PaxosClusterMemberEvents.ClusterMembersSnapshot>() {
@Override
public boolean accept(PaxosClusterMemberEvents.ClusterMembersSnapshot item) {
for (MemberIsAvailable member : item.getCurrentAvailableMembers()) {
if (member.getRoleUri().getScheme().equals("ha")) {
if (HighAvailabilityModeSwitcher.getServerId(member.getRoleUri())
== config.get(ClusterSettings.server_id)) {
msgLog.error(
String.format(
"Instance %s has the same serverId as ours (%d) - will not join this cluster",
member.getRoleUri(), config.get(ClusterSettings.server_id)));
return true;
}
}
}
return true;
}
});
// Force a reelection after we enter the cluster
// and when that election is finished refresh the snapshot
clusterClient.addClusterListener(
new ClusterListener.Adapter() {
@Override
public void enteredCluster(ClusterConfiguration clusterConfiguration) {
clusterClient.performRoleElections();
}
@Override
public void elected(String role, InstanceId instanceId, URI electedMember) {
if (role.equals(ClusterConfiguration.COORDINATOR)) {
clusterClient.refreshSnapshot();
clusterClient.removeClusterListener(this);
}
}
});
HighAvailabilityMemberContext localMemberContext =
new SimpleHighAvailabilityMemberContext(clusterClient.getServerId());
PaxosClusterMemberAvailability localClusterMemberAvailability =
new PaxosClusterMemberAvailability(
clusterClient.getServerId(), clusterClient, clusterClient, logging);
// Here we decide whether to start in compatibility mode or mode or not
if (!config.get(HaSettings.coordinators).isEmpty()
&& !config.get(HaSettings.coordinators).get(0).toString().trim().equals("")) {
compatibilityMode = true;
compatibilityLifecycle = new LinkedList<Lifecycle>();
Switchover switchover =
new ZooToPaxosSwitchover(
life,
paxosLife,
compatibilityLifecycle,
clusterEventsDelegateInvocationHandler,
memberContextDelegateInvocationHandler,
clusterMemberAvailabilityDelegateInvocationHandler,
localClusterEvents,
localMemberContext,
localClusterMemberAvailability);
ZooKeeperHighAvailabilityEvents zkEvents =
new ZooKeeperHighAvailabilityEvents(logging, config, switchover);
compatibilityLifecycle.add(zkEvents);
memberContextDelegateInvocationHandler.setDelegate(
new SimpleHighAvailabilityMemberContext(zkEvents.getInstanceId()));
clusterEventsDelegateInvocationHandler.setDelegate(zkEvents);
clusterMemberAvailabilityDelegateInvocationHandler.setDelegate(zkEvents);
// Paxos Events added to life, won't be stopped because it isn't started yet
paxosLife.add(localClusterEvents);
} else {
memberContextDelegateInvocationHandler.setDelegate(localMemberContext);
clusterEventsDelegateInvocationHandler.setDelegate(localClusterEvents);
clusterMemberAvailabilityDelegateInvocationHandler.setDelegate(
localClusterMemberAvailability);
}
members =
new ClusterMembers(
clusterClient,
clusterClient,
clusterEvents,
new InstanceId(config.get(ClusterSettings.server_id)));
memberStateMachine =
new HighAvailabilityMemberStateMachine(
memberContext,
accessGuard,
members,
clusterEvents,
clusterClient,
logging.getLogger(HighAvailabilityMemberStateMachine.class));
if (compatibilityMode) {
/*
* In here goes stuff that needs to stop when switching. If added in paxosLife too they will be restarted.
* Adding to life starts them when life.start is called - adding them to compatibilityLifeCycle shuts them
* down on switchover
*/
compatibilityLifecycle.add(memberStateMachine);
// compatibilityLifecycle.add( highAvailabilityModeSwitcher );
compatibilityLifecycle.add((Lifecycle) clusterEvents);
life.add(memberStateMachine);
// life.add( highAvailabilityModeSwitcher );
life.add(clusterEvents);
}
/*
* Here goes stuff that needs to start when paxos kicks in:
* In Normal (non compatibility mode): That means they start normally
* In Compatibility Mode: That means they start when switchover happens. If added to life too they will be
* restarted
*/
paxosLife.add(memberStateMachine);
paxosLife.add(clusterEvents);
paxosLife.add(clusterClient);
paxosLife.add(localClusterMemberAvailability);
DelegateInvocationHandler<TxHook> txHookDelegate = new DelegateInvocationHandler<TxHook>();
TxHook txHook =
(TxHook)
Proxy.newProxyInstance(
TxHook.class.getClassLoader(), new Class[] {TxHook.class}, txHookDelegate);
new TxHookModeSwitcher(
memberStateMachine,
txHookDelegate,
master,
new TxHookModeSwitcher.RequestContextFactoryResolver() {
@Override
public RequestContextFactory get() {
return requestContextFactory;
}
},
dependencyResolver);
return txHook;
}
BatchInserterImpl(
String storeDir,
FileSystemAbstraction fileSystem,
Map<String, String> stringParams,
Iterable<KernelExtensionFactory<?>> kernelExtensions) {
rejectAutoUpgrade(stringParams);
Map<String, String> params = getDefaultParams();
params.putAll(stringParams);
config =
StoreFactory.configForStoreDir(
new Config(params, GraphDatabaseSettings.class), new File(storeDir));
life = new LifeSupport();
this.fileSystem = fileSystem;
this.storeDir = new File(FileUtils.fixSeparatorsInPath(storeDir));
Neo4jJobScheduler jobScheduler = life.add(new Neo4jJobScheduler());
LifecycledPageCache pageCache =
life.add(new LifecycledPageCache(fileSystem, jobScheduler, config));
msgLog = StringLogger.loggerDirectory(fileSystem, this.storeDir);
logging = new SingleLoggingService(msgLog);
storeLocker = new StoreLocker(fileSystem);
storeLocker.checkLock(this.storeDir);
boolean dump = config.get(GraphDatabaseSettings.dump_configuration);
this.idGeneratorFactory = new DefaultIdGeneratorFactory();
Monitors monitors = new Monitors();
StoreFactory sf =
new StoreFactory(config, idGeneratorFactory, pageCache, fileSystem, msgLog, monitors);
if (dump) {
dumpConfiguration(params);
}
msgLog.logMessage(Thread.currentThread() + " Starting BatchInserter(" + this + ")");
neoStore = sf.newNeoStore(true);
if (!neoStore.isStoreOk()) {
throw new IllegalStateException(storeDir + " store is not cleanly shutdown.");
}
neoStore.makeStoreOk();
Token[] indexes = getPropertyKeyTokenStore().getTokens(10000);
propertyKeyTokens = new BatchTokenHolder(indexes);
labelTokens = new BatchTokenHolder(neoStore.getLabelTokenStore().getTokens(Integer.MAX_VALUE));
Token[] types = getRelationshipTypeStore().getTokens(Integer.MAX_VALUE);
relationshipTypeTokens = new BatchTokenHolder(types);
indexStore = life.add(new IndexConfigStore(this.storeDir, fileSystem));
schemaCache = new SchemaCache(neoStore.getSchemaStore());
KernelExtensions extensions =
life.add(
new KernelExtensions(
kernelExtensions,
config,
new DependencyResolverImpl(),
UnsatisfiedDependencyStrategies.ignore()));
life.start();
SchemaIndexProvider provider =
extensions.resolveDependency(
SchemaIndexProvider.class, SchemaIndexProvider.HIGHEST_PRIORITIZED_OR_NONE);
schemaIndexProviders = new DefaultSchemaIndexProviderMap(provider);
labelScanStore =
life.add(
extensions
.resolveDependency(
LabelScanStoreProvider.class, LabelScanStoreProvider.HIGHEST_PRIORITIZED)
.getLabelScanStore());
actions = new BatchSchemaActions();
// Record access
recordAccess = new DirectRecordAccessSet(neoStore);
relationshipCreator =
new RelationshipCreator(
RelationshipLocker.NO_LOCKING,
new RelationshipGroupGetter(neoStore.getRelationshipGroupStore()),
neoStore.getDenseNodeThreshold());
propertyTraverser = new PropertyTraverser();
propertyCreator = new PropertyCreator(getPropertyStore(), propertyTraverser);
propertyDeletor = new PropertyDeleter(getPropertyStore(), propertyTraverser);
}
private void writeTransactionsToActiveLogFile(File storeDir, Response<?> response)
throws IOException {
LifeSupport life = new LifeSupport();
try {
// Start the log and appender
PhysicalLogFiles logFiles = new PhysicalLogFiles(storeDir, fs);
TransactionMetadataCache transactionMetadataCache = new TransactionMetadataCache(10, 100);
ReadOnlyLogVersionRepository logVersionRepository =
new ReadOnlyLogVersionRepository(fs, storeDir);
LogFile logFile =
life.add(
new PhysicalLogFile(
fs,
logFiles,
Long.MAX_VALUE /*don't rotate*/,
NO_PRUNING,
new ReadOnlyTransactionIdStore(fs, storeDir),
logVersionRepository,
new Monitors().newMonitor(PhysicalLogFile.Monitor.class),
LogRotationControl.NO_ROTATION_CONTROL,
transactionMetadataCache,
new NoRecoveryAssertingVisitor()));
life.start();
// Just write all transactions to the active log version. Remember that this is after a store
// copy
// where there are no logs, and the transaction stream we're about to write will probably
// contain
// transactions that goes some time back, before the last committed transaction id. So we
// cannot
// use a TransactionAppender, since it has checks for which transactions one can append.
WritableLogChannel channel = logFile.getWriter();
final TransactionLogWriter writer =
new TransactionLogWriter(new LogEntryWriterv1(channel, new CommandWriter(channel)));
final AtomicLong firstTxId = new AtomicLong(-1);
response.accept(
new Visitor<CommittedTransactionRepresentation, IOException>() {
@Override
public boolean visit(CommittedTransactionRepresentation transaction)
throws IOException {
long txId = transaction.getCommitEntry().getTxId();
writer.append(transaction.getTransactionRepresentation(), txId);
firstTxId.compareAndSet(-1, txId);
return true;
}
});
// And since we write this manually we need to set the correct transaction id in the
// header of the log that we just wrote.
writeLogHeader(
fs,
logFiles.getLogFileForVersion(logVersionRepository.getCurrentLogVersion()),
logVersionRepository.getCurrentLogVersion(),
firstTxId.get() != -1 ? firstTxId.get() - 1 : 0);
if (firstTxId.get() == -1) {
console.warn(
"Important: There are no available transaction logs on the target database, which "
+ "means the backup could not save a point-in-time reference. This means you cannot use this "
+ "backup for incremental backups, and it means you cannot use it directly to seed an HA "
+ "cluster. The next time you perform a backup, a full backup will be done. If you wish to "
+ "use this backup as a seed for a cluster, you need to start a stand-alone database on "
+ "it, and commit one write transaction, to create the transaction log needed to seed the "
+ "cluster. To avoid this happening, make sure you never manually delete transaction log "
+ "files ("
+ PhysicalLogFile.DEFAULT_NAME
+ PhysicalLogFile.DEFAULT_VERSION_SUFFIX
+ "XXX), "
+ "and that you configure the database to keep at least a few days worth of transaction logs.");
}
} finally {
life.shutdown();
}
}
@Override
public void start() throws IOException {
life = new LifeSupport();
readOnly = config.get(Configuration.read_only);
storeDir = config.get(Configuration.store_dir);
File store = config.get(Configuration.neo_store);
storeFactory.ensureStoreExists();
final TransactionFactory tf;
if (providers.shouldInterceptCommitting()) {
tf = new InterceptingTransactionFactory();
} else {
tf = new TransactionFactory();
}
neoStore = storeFactory.newNeoStore(store);
neoStoreTransactionContextSupplier = new NeoStoreTransactionContextSupplier(neoStore);
schemaCache = new SchemaCache(Collections.<SchemaRule>emptyList());
final NodeManager nodeManager = dependencyResolver.resolveDependency(NodeManager.class);
Iterator<? extends Cache<?>> caches = nodeManager.caches().iterator();
persistenceCache =
new PersistenceCache(
(AutoLoadingCache<NodeImpl>) caches.next(),
(AutoLoadingCache<RelationshipImpl>) caches.next(),
new Thunk<GraphPropertiesImpl>() {
@Override
public GraphPropertiesImpl evaluate() {
return nodeManager.getGraphProperties();
}
},
nodeManager);
cacheAccess =
new BridgingCacheAccess(nodeManager, schemaCache, updateableSchemaState, persistenceCache);
try {
indexProvider =
dependencyResolver.resolveDependency(
SchemaIndexProvider.class, SchemaIndexProvider.HIGHEST_PRIORITIZED_OR_NONE);
// TODO: Build a real provider map
DefaultSchemaIndexProviderMap providerMap = new DefaultSchemaIndexProviderMap(indexProvider);
indexingService =
life.add(
new IndexingService(
scheduler,
providerMap,
new NeoStoreIndexStoreView(locks, neoStore),
tokenNameLookup,
updateableSchemaState,
logging));
integrityValidator = new IntegrityValidator(neoStore, indexingService);
xaContainer =
xaFactory.newXaContainer(
this,
config.get(Configuration.logical_log),
new CommandFactory(neoStore, indexingService),
new NeoStoreInjectedTransactionValidator(integrityValidator),
tf,
stateFactory,
providers,
readOnly);
labelScanStore =
life.add(
dependencyResolver
.resolveDependency(
LabelScanStoreProvider.class, LabelScanStoreProvider.HIGHEST_PRIORITIZED)
.getLabelScanStore());
fileListing = new NeoStoreFileListing(xaContainer, storeDir, labelScanStore, indexingService);
kernel =
life.add(
new Kernel(
txManager,
propertyKeyTokens,
labelTokens,
relationshipTypeTokens,
persistenceManager,
lockManager,
updateableSchemaState,
schemaWriteGuard,
indexingService,
nodeManager,
neoStore,
persistenceCache,
schemaCache,
providerMap,
labelScanStore,
readOnly));
life.init();
// TODO: Why isn't this done in the init() method of the indexing service?
if (!readOnly) {
neoStore.setRecoveredStatus(true);
try {
indexingService.initIndexes(loadIndexRules());
xaContainer.openLogicalLog();
} finally {
neoStore.setRecoveredStatus(false);
}
}
if (!xaContainer.getResourceManager().hasRecoveredTransactions()) {
neoStore.makeStoreOk();
} else {
msgLog.debug("Waiting for TM to take care of recovered " + "transactions.");
}
idGenerators = new ArrayMap<>((byte) 5, false, false);
this.idGenerators.put(Node.class, neoStore.getNodeStore());
this.idGenerators.put(Relationship.class, neoStore.getRelationshipStore());
this.idGenerators.put(RelationshipType.class, neoStore.getRelationshipTypeStore());
this.idGenerators.put(Label.class, neoStore.getLabelTokenStore());
this.idGenerators.put(PropertyStore.class, neoStore.getPropertyStore());
this.idGenerators.put(
PropertyKeyTokenRecord.class, neoStore.getPropertyStore().getPropertyKeyTokenStore());
setLogicalLogAtCreationTime(xaContainer.getLogicalLog());
life.start();
} catch (Throwable e) { // Something unexpected happened during startup
try { // Close the neostore, so that locks are released properly
neoStore.close();
} catch (Exception closeException) {
msgLog.logMessage("Couldn't close neostore after startup failure");
}
throw Exceptions.launderedException(e);
}
}
@Override
public void start() throws IOException {
life = new LifeSupport();
readOnly = config.get(Configuration.read_only);
storeDir = config.get(Configuration.store_dir);
File store = config.get(Configuration.neo_store);
if (!storeFactory.storeExists()) {
storeFactory.createNeoStore().close();
}
indexProvider =
dependencyResolver.resolveDependency(
SchemaIndexProvider.class, SchemaIndexProvider.HIGHEST_PRIORITIZED_OR_NONE);
storeMigrationProcess.addParticipant(indexProvider.storeMigrationParticipant());
// TODO: Build a real provider map
final DefaultSchemaIndexProviderMap providerMap =
new DefaultSchemaIndexProviderMap(indexProvider);
storeMigrationProcess.migrateIfNeeded(store.getParentFile());
neoStore = dependencies.satisfyDependency(storeFactory.newNeoStore(false));
dependencies.satisfyDependency(TransactionIdStore.class, neoStore);
schemaCache = new SchemaCache(Collections.<SchemaRule>emptyList());
nodeCache = new AutoLoadingCache<>(cacheProvider.node(), nodeLoader(neoStore.getNodeStore()));
relationshipCache =
new AutoLoadingCache<>(
cacheProvider.relationship(), relationshipLoader(neoStore.getRelationshipStore()));
RelationshipLoader relationshipLoader =
new RelationshipLoader(relationshipCache, new RelationshipChainLoader(neoStore));
PersistenceCache persistenceCache =
new PersistenceCache(
nodeCache,
relationshipCache,
nodeManager,
relationshipLoader,
propertyKeyTokenHolder,
relationshipTypeTokens,
labelTokens);
CacheAccessBackDoor cacheAccess =
new BridgingCacheAccess(schemaCache, updateableSchemaState, persistenceCache);
try {
indexingService =
new IndexingService(
scheduler,
providerMap,
new NeoStoreIndexStoreView(lockService, neoStore),
tokenNameLookup,
updateableSchemaState,
indexRuleLoader(),
logging,
indexingServiceMonitor); // TODO 2.2-future What index rules should be
final IntegrityValidator integrityValidator =
new IntegrityValidator(neoStore, indexingService);
labelScanStore =
dependencyResolver
.resolveDependency(
LabelScanStoreProvider.class, LabelScanStoreProvider.HIGHEST_PRIORITIZED)
.getLabelScanStore();
fileListing =
new NeoStoreFileListing(
storeDir, labelScanStore, indexingService, legacyIndexProviderLookup);
Provider<NeoStore> neoStoreProvider =
new Provider<NeoStore>() {
@Override
public NeoStore instance() {
return getNeoStore();
}
};
if (config.get(GraphDatabaseSettings.cache_type).equals(CacheLayer.EXPERIMENTAL_OFF)) {
storeLayer =
new DiskLayer(
propertyKeyTokenHolder,
labelTokens,
relationshipTypeTokens,
new SchemaStorage(neoStore.getSchemaStore()),
neoStoreProvider,
indexingService);
} else {
storeLayer =
new CacheLayer(
new DiskLayer(
propertyKeyTokenHolder,
labelTokens,
relationshipTypeTokens,
new SchemaStorage(neoStore.getSchemaStore()),
neoStoreProvider,
indexingService),
persistenceCache,
indexingService,
schemaCache);
}
LegacyPropertyTrackers legacyPropertyTrackers =
new LegacyPropertyTrackers(
propertyKeyTokenHolder,
nodeManager.getNodePropertyTrackers(),
nodeManager.getRelationshipPropertyTrackers(),
nodeManager);
StatisticsService statisticsService =
new StatisticsServiceRepository(fs, config, storeLayer, scheduler).loadStatistics();
final NeoStoreTransactionContextSupplier neoStoreTransactionContextSupplier =
new NeoStoreTransactionContextSupplier(neoStore);
final TransactionHooks hooks = new TransactionHooks();
File directory = config.get(GraphDatabaseSettings.store_dir);
TransactionMetadataCache transactionMetadataCache =
new TransactionMetadataCache(1000, 100_000);
PhysicalLogFiles logFiles = new PhysicalLogFiles(directory, PhysicalLogFile.DEFAULT_NAME, fs);
LogFileInformation logFileInformation =
dependencies.satisfyDependency(
LogFileInformation.class,
new PhysicalLogFileInformation(
logFiles,
transactionMetadataCache,
neoStore,
new PhysicalLogFileInformation.SPI() {
@Override
public long getTimestampForVersion(long version) throws IOException {
LogPosition position = new LogPosition(version, LOG_HEADER_SIZE);
try (ReadableLogChannel channel = logFile.getReader(position)) {
LogEntryReader<ReadableLogChannel> reader =
new VersionAwareLogEntryReader();
LogEntry entry;
while ((entry = reader.readLogEntry(channel)) != null) {
if (entry instanceof LogEntryStart) {
return ((LogEntryStart) entry).getTimeWritten();
}
}
}
return -1;
}
}));
LogPruneStrategy logPruneStrategy =
LogPruneStrategyFactory.fromConfigValue(
fs,
logFileInformation,
logFiles,
neoStore,
config.get(GraphDatabaseSettings.keep_logical_logs));
final TransactionRepresentationStoreApplier storeApplier =
dependencies.satisfyDependency(
new TransactionRepresentationStoreApplier(
indexingService,
labelScanStore,
neoStore,
cacheAccess,
lockService,
legacyIndexProviderLookup,
indexConfigStore,
DEFAULT_HIGH_ID_TRACKING));
LoggingLogFileMonitor logMonitor =
new LoggingLogFileMonitor(logging.getMessagesLog(getClass()));
RecoveryVisitor recoveryVisitor =
new RecoveryVisitor(neoStore, storeApplier, recoveredCount, logMonitor);
Visitor<ReadableLogChannel, IOException> logFileRecoverer =
new LogFileRecoverer(new VersionAwareLogEntryReader(), recoveryVisitor);
logFile =
dependencies.satisfyDependency(
new PhysicalLogFile(
fs,
logFiles,
config.get(GraphDatabaseSettings.logical_log_rotation_threshold),
logPruneStrategy,
neoStore,
neoStore,
logMonitor,
this,
transactionMetadataCache,
logFileRecoverer));
final LogicalTransactionStore logicalTransactionStore =
dependencies.satisfyDependency(
LogicalTransactionStore.class,
new PhysicalLogicalTransactionStore(
logFile,
txIdGenerator,
transactionMetadataCache,
neoStore,
config.get(GraphDatabaseSettings.batched_writes)));
TransactionCommitProcess transactionCommitProcess =
dependencies.satisfyDependency(
TransactionCommitProcess.class,
commitProcessFactory.create(
logicalTransactionStore,
kernelHealth,
neoStore,
storeApplier,
new NeoStoreInjectedTransactionValidator(integrityValidator),
false));
/*
* This is used by legacy indexes and constraint indexes whenever a transaction is to be spawned
* from within an existing transaction. It smells, and we should look over alternatives when time permits.
*/
Provider<KernelAPI> kernelProvider =
new Provider<KernelAPI>() {
@Override
public KernelAPI instance() {
return kernel;
}
};
ConstraintIndexCreator constraintIndexCreator =
new ConstraintIndexCreator(kernelProvider, indexingService);
LegacyIndexStore legacyIndexStore =
new LegacyIndexStore(config, indexConfigStore, kernelProvider, legacyIndexProviderLookup);
StatementOperationParts statementOperations =
buildStatementOperations(
storeLayer,
legacyPropertyTrackers,
constraintIndexCreator,
updateableSchemaState,
guard,
legacyIndexStore);
kernelTransactions =
life.add(
new KernelTransactions(
neoStoreTransactionContextSupplier,
neoStore,
locks,
integrityValidator,
constraintIndexCreator,
indexingService,
labelScanStore,
statementOperations,
updateableSchemaState,
schemaWriteGuard,
providerMap,
transactionHeaderInformationFactory,
persistenceCache,
storeLayer,
transactionCommitProcess,
indexConfigStore,
legacyIndexProviderLookup,
hooks,
transactionMonitor,
life,
readOnly));
kernel =
new Kernel(
statisticsService, kernelTransactions, hooks, kernelHealth, transactionMonitor);
life.add(logFile);
life.add(logicalTransactionStore);
life.add(
new LifecycleAdapter() {
@Override
public void start() throws Throwable {
startupStatistics.setNumberOfRecoveredTransactions(recoveredCount.get());
recoveredCount.set(0);
loadSchemaCache();
}
});
life.add(statisticsService);
life.add(
new LifecycleAdapter() {
@Override
public void start() {
neoStore.makeStoreOk();
}
});
life.add(indexingService);
life.add(labelScanStore);
kernel.registerTransactionHook(transactionEventHandlers);
neoStore.setRecoveredStatus(true);
try {
life.start();
} finally {
neoStore.setRecoveredStatus(false);
}
propertyKeyTokenHolder.addTokens(
neoStore.getPropertyKeyTokenStore().getTokens(Integer.MAX_VALUE));
relationshipTypeTokens.addTokens(
neoStore.getRelationshipTypeTokenStore().getTokens(Integer.MAX_VALUE));
labelTokens.addTokens(neoStore.getLabelTokenStore().getTokens(Integer.MAX_VALUE));
} catch (Throwable e) { // Something unexpected happened during startup
try { // Close the neostore, so that locks are released properly
neoStore.close();
} catch (Exception closeException) {
msgLog.logMessage("Couldn't close neostore after startup failure");
}
throw Exceptions.launderedException(e);
}
}
private CacheModule buildCaches(
final NeoStore neoStore,
Caches cacheProvider,
NodeManager nodeManager,
LabelTokenHolder labelTokens,
RelationshipTypeTokenHolder relationshipTypeTokens,
PropertyKeyTokenHolder propertyKeyTokenHolder) {
final UpdateableSchemaState updateableSchemaState =
new KernelSchemaStateStore(logging.getMessagesLog(KernelSchemaStateStore.class));
final SchemaCache schemaCache = new SchemaCache(Collections.<SchemaRule>emptyList());
final AutoLoadingCache<NodeImpl> nodeCache =
new AutoLoadingCache<>(cacheProvider.node(), nodeLoader(neoStore.getNodeStore()));
final AutoLoadingCache<RelationshipImpl> relationshipCache =
new AutoLoadingCache<>(
cacheProvider.relationship(), relationshipLoader(neoStore.getRelationshipStore()));
RelationshipLoader relationshipLoader =
new RelationshipLoader(
lockService, relationshipCache, new RelationshipChainLoader(neoStore));
final PersistenceCache persistenceCache =
new PersistenceCache(
nodeCache,
relationshipCache,
nodeManager,
relationshipLoader,
propertyKeyTokenHolder,
relationshipTypeTokens,
labelTokens);
final CacheAccessBackDoor cacheAccess =
new BridgingCacheAccess(schemaCache, updateableSchemaState, persistenceCache);
life.add(
new LifecycleAdapter() {
@Override
public void start() throws Throwable {
loadSchemaCache();
}
@Override
public void stop() throws Throwable {}
});
return new CacheModule() {
@Override
public SchemaCache schemaCache() {
return schemaCache;
}
@Override
public UpdateableSchemaState updateableSchemaState() {
return updateableSchemaState;
}
@Override
public PersistenceCache persistenceCache() {
return persistenceCache;
}
@Override
public CacheAccessBackDoor cacheAccess() {
return cacheAccess;
}
@Override
public Cache<NodeImpl> nodeCache() {
return nodeCache;
}
@Override
public Cache<RelationshipImpl> relationshipCache() {
return relationshipCache;
}
};
}
private StandaloneClusterClient(Logging logging, ClusterClient clusterClient) {
life.add(logging);
life.add(clusterClient);
addShutdownHook();
life.start();
}
@Override
protected RemoteTxHook createTxHook() {
clusterEventsDelegateInvocationHandler = new DelegateInvocationHandler();
memberContextDelegateInvocationHandler = new DelegateInvocationHandler();
clusterMemberAvailabilityDelegateInvocationHandler = new DelegateInvocationHandler();
clusterEvents =
(ClusterMemberEvents)
Proxy.newProxyInstance(
ClusterMemberEvents.class.getClassLoader(),
new Class[] {ClusterMemberEvents.class, Lifecycle.class},
clusterEventsDelegateInvocationHandler);
memberContext =
(HighAvailabilityMemberContext)
Proxy.newProxyInstance(
HighAvailabilityMemberContext.class.getClassLoader(),
new Class[] {HighAvailabilityMemberContext.class},
memberContextDelegateInvocationHandler);
clusterMemberAvailability =
(ClusterMemberAvailability)
Proxy.newProxyInstance(
ClusterMemberAvailability.class.getClassLoader(),
new Class[] {ClusterMemberAvailability.class},
clusterMemberAvailabilityDelegateInvocationHandler);
ElectionCredentialsProvider electionCredentialsProvider =
config.get(HaSettings.slave_only)
? new NotElectableElectionCredentialsProvider()
: new DefaultElectionCredentialsProvider(
config.get(ClusterSettings.server_id),
new OnDiskLastTxIdGetter(new File(getStoreDir())),
new HighAvailabilityMemberInfoProvider() {
@Override
public HighAvailabilityMemberState getHighAvailabilityMemberState() {
return memberStateMachine.getCurrentState();
}
});
ObjectStreamFactory objectStreamFactory = new ObjectStreamFactory();
clusterClient =
new ClusterClient(
ClusterClient.adapt(config),
logging,
electionCredentialsProvider,
objectStreamFactory,
objectStreamFactory);
PaxosClusterMemberEvents localClusterEvents =
new PaxosClusterMemberEvents(
clusterClient,
clusterClient,
clusterClient,
clusterClient,
logging,
new Predicate<PaxosClusterMemberEvents.ClusterMembersSnapshot>() {
@Override
public boolean accept(PaxosClusterMemberEvents.ClusterMembersSnapshot item) {
for (MemberIsAvailable member : item.getCurrentAvailableMembers()) {
if (member.getRoleUri().getScheme().equals("ha")) {
if (HighAvailabilityModeSwitcher.getServerId(member.getRoleUri())
== config.get(ClusterSettings.server_id)) {
msgLog.error(
String.format(
"Instance %s has the same serverId as ours (%d) - will not "
+ "join this cluster",
member.getRoleUri(), config.get(ClusterSettings.server_id)));
return true;
}
}
}
return true;
}
},
new HANewSnapshotFunction(),
objectStreamFactory,
objectStreamFactory);
// Force a reelection after we enter the cluster
// and when that election is finished refresh the snapshot
clusterClient.addClusterListener(
new ClusterListener.Adapter() {
boolean hasRequestedElection =
true; // This ensures that the election result is (at least) from our
// request or thereafter
@Override
public void enteredCluster(ClusterConfiguration clusterConfiguration) {
clusterClient.performRoleElections();
}
@Override
public void elected(String role, InstanceId instanceId, URI electedMember) {
if (hasRequestedElection && role.equals(ClusterConfiguration.COORDINATOR)) {
clusterClient.removeClusterListener(this);
}
}
});
HighAvailabilityMemberContext localMemberContext =
new SimpleHighAvailabilityMemberContext(clusterClient.getServerId());
PaxosClusterMemberAvailability localClusterMemberAvailability =
new PaxosClusterMemberAvailability(
clusterClient.getServerId(),
clusterClient,
clusterClient,
logging,
objectStreamFactory,
objectStreamFactory);
memberContextDelegateInvocationHandler.setDelegate(localMemberContext);
clusterEventsDelegateInvocationHandler.setDelegate(localClusterEvents);
clusterMemberAvailabilityDelegateInvocationHandler.setDelegate(localClusterMemberAvailability);
members =
new ClusterMembers(
clusterClient,
clusterClient,
clusterEvents,
new InstanceId(config.get(ClusterSettings.server_id)));
memberStateMachine =
new HighAvailabilityMemberStateMachine(
memberContext,
availabilityGuard,
members,
clusterEvents,
clusterClient,
logging.getMessagesLog(HighAvailabilityMemberStateMachine.class));
HighAvailabilityConsoleLogger highAvailabilityConsoleLogger =
new HighAvailabilityConsoleLogger(
logging.getConsoleLog(HighAvailabilityConsoleLogger.class),
new InstanceId(config.get(ClusterSettings.server_id)));
availabilityGuard.addListener(highAvailabilityConsoleLogger);
clusterEvents.addClusterMemberListener(highAvailabilityConsoleLogger);
clusterClient.addClusterListener(highAvailabilityConsoleLogger);
paxosLife.add(clusterClient);
paxosLife.add(memberStateMachine);
paxosLife.add(clusterEvents);
paxosLife.add(localClusterMemberAvailability);
DelegateInvocationHandler<RemoteTxHook> txHookDelegate = new DelegateInvocationHandler<>();
RemoteTxHook txHook =
(RemoteTxHook)
Proxy.newProxyInstance(
RemoteTxHook.class.getClassLoader(),
new Class[] {RemoteTxHook.class},
txHookDelegate);
new TxHookModeSwitcher(
memberStateMachine,
txHookDelegate,
master,
new TxHookModeSwitcher.RequestContextFactoryResolver() {
@Override
public RequestContextFactory get() {
return requestContextFactory;
}
},
logging.getMessagesLog(TxHookModeSwitcher.class),
dependencyResolver);
return txHook;
}
BatchInserterImpl(
String storeDir,
FileSystemAbstraction fileSystem,
Map<String, String> stringParams,
Iterable<KernelExtensionFactory<?>> kernelExtensions) {
life = new LifeSupport();
this.fileSystem = fileSystem;
this.storeDir = new File(FileUtils.fixSeparatorsInPath(storeDir));
rejectAutoUpgrade(stringParams);
msgLog = StringLogger.loggerDirectory(fileSystem, this.storeDir);
logging = new SingleLoggingService(msgLog);
Map<String, String> params = getDefaultParams();
params.put(GraphDatabaseSettings.use_memory_mapped_buffers.name(), Settings.FALSE);
params.put(InternalAbstractGraphDatabase.Configuration.store_dir.name(), storeDir);
params.putAll(stringParams);
storeLocker = new StoreLocker(fileSystem);
storeLocker.checkLock(this.storeDir);
config = new Config(params, GraphDatabaseSettings.class);
boolean dump = config.get(GraphDatabaseSettings.dump_configuration);
this.idGeneratorFactory = new DefaultIdGeneratorFactory();
StoreFactory sf =
new StoreFactory(
config, idGeneratorFactory, new DefaultWindowPoolFactory(), fileSystem, msgLog, null);
File store = fixPath(this.storeDir, sf);
if (dump) {
dumpConfiguration(params);
}
msgLog.logMessage(Thread.currentThread() + " Starting BatchInserter(" + this + ")");
neoStore = sf.newNeoStore(store);
if (!neoStore.isStoreOk()) {
throw new IllegalStateException(storeDir + " store is not cleanly shutdown.");
}
neoStore.makeStoreOk();
Token[] indexes = getPropertyKeyTokenStore().getTokens(10000);
propertyKeyTokens = new BatchTokenHolder(indexes);
labelTokens = new BatchTokenHolder(neoStore.getLabelTokenStore().getTokens(Integer.MAX_VALUE));
Token[] types = getRelationshipTypeStore().getTokens(Integer.MAX_VALUE);
relationshipTypeTokens = new BatchTokenHolder(types);
indexStore = life.add(new IndexStore(this.storeDir, fileSystem));
schemaCache = new SchemaCache(neoStore.getSchemaStore());
KernelExtensions extensions =
life.add(
new KernelExtensions(
kernelExtensions,
config,
new DependencyResolverImpl(),
UnsatisfiedDependencyStrategies.ignore()));
life.start();
SchemaIndexProvider provider =
extensions.resolveDependency(
SchemaIndexProvider.class, SchemaIndexProvider.HIGHEST_PRIORITIZED_OR_NONE);
schemaIndexProviders = new DefaultSchemaIndexProviderMap(provider);
labelScanStore =
life.add(
extensions
.resolveDependency(
LabelScanStoreProvider.class, LabelScanStoreProvider.HIGHEST_PRIORITIZED)
.getLabelScanStore());
actions = new BatchSchemaActions();
}
private TransactionLogModule buildTransactionLogs(
Config config,
Logging logging,
LabelScanStore labelScanStore,
FileSystemAbstraction fileSystemAbstraction,
NeoStore neoStore,
CacheAccessBackDoor cacheAccess,
IndexingService indexingService,
Iterable<IndexImplementation> indexProviders) {
File directory = config.get(GraphDatabaseSettings.store_dir);
TransactionMetadataCache transactionMetadataCache = new TransactionMetadataCache(1000, 100_000);
final PhysicalLogFiles logFiles =
new PhysicalLogFiles(directory, PhysicalLogFile.DEFAULT_NAME, fileSystemAbstraction);
IdOrderingQueue legacyIndexTransactionOrdering = new SynchronizedArrayIdOrderingQueue(20);
final TransactionRepresentationStoreApplier storeApplier =
dependencies.satisfyDependency(
new TransactionRepresentationStoreApplier(
indexingService,
labelScanStore,
neoStore,
cacheAccess,
lockService,
legacyIndexProviderLookup,
indexConfigStore,
legacyIndexTransactionOrdering));
final PhysicalLogFile logFile =
new PhysicalLogFile(
fileSystemAbstraction,
logFiles,
config.get(GraphDatabaseSettings.logical_log_rotation_threshold),
neoStore,
neoStore,
physicalLogMonitor,
transactionMetadataCache);
final PhysicalLogFileInformation.SPI logInformation =
new PhysicalLogFileInformation.SPI() {
@Override
public long getTimestampForVersion(long version) throws IOException {
LogPosition position = new LogPosition(version, LOG_HEADER_SIZE);
try (ReadableVersionableLogChannel channel = logFile.getReader(position)) {
final LogEntryReader<ReadableVersionableLogChannel> reader =
new LogEntryReaderFactory().versionable();
LogEntry entry;
while ((entry = reader.readLogEntry(channel)) != null) {
if (entry instanceof LogEntryStart) {
return entry.<LogEntryStart>as().getTimeWritten();
}
}
}
return -1;
}
};
final LogFileInformation logFileInformation =
new PhysicalLogFileInformation(
logFiles, transactionMetadataCache, neoStore, logInformation);
LogPruneStrategy logPruneStrategy =
LogPruneStrategyFactory.fromConfigValue(
fs,
logFileInformation,
logFiles,
neoStore,
config.get(GraphDatabaseSettings.keep_logical_logs));
monitors.addMonitorListener(new LogPruning(logPruneStrategy));
final LogRotationControl logRotationControl =
new LogRotationControl(neoStore, indexingService, labelScanStore, indexProviders);
final LogRotation logRotation =
new LogRotationImpl(
monitors.newMonitor(LogRotation.Monitor.class), logFile, logRotationControl);
final LogicalTransactionStore logicalTransactionStore =
new PhysicalLogicalTransactionStore(
logFile,
logRotation,
transactionMetadataCache,
neoStore,
legacyIndexTransactionOrdering,
config.get(GraphDatabaseSettings.batched_writes));
life.add(logFile);
life.add(logicalTransactionStore);
return new TransactionLogModule() {
@Override
public TransactionRepresentationStoreApplier storeApplier() {
return storeApplier;
}
@Override
public LogicalTransactionStore logicalTransactionStore() {
return logicalTransactionStore;
}
@Override
public LogFileInformation logFileInformation() {
return logFileInformation;
}
@Override
public PhysicalLogFiles logFiles() {
return logFiles;
}
@Override
public LogFile logFile() {
return logFile;
}
@Override
public LogRotationControl logRotationControl() {
return logRotationControl;
}
@Override
public LogRotation logRotation() {
return logRotation;
}
};
}
private KernelModule buildKernel(
IntegrityValidator integrityValidator,
LogicalTransactionStore logicalTransactionStore,
NeoStore neoStore,
TransactionRepresentationStoreApplier storeApplier,
IndexingService indexingService,
StoreReadLayer storeLayer,
UpdateableSchemaState updateableSchemaState,
LabelScanStore labelScanStore,
PersistenceCache persistenceCache,
SchemaIndexProviderMap schemaIndexProviderMap) {
final TransactionCommitProcess transactionCommitProcess =
commitProcessFactory.create(
logicalTransactionStore,
kernelHealth,
neoStore,
storeApplier,
new NeoStoreInjectedTransactionValidator(integrityValidator),
TransactionApplicationMode.INTERNAL,
config);
/*
* This is used by legacy indexes and constraint indexes whenever a transaction is to be spawned
* from within an existing transaction. It smells, and we should look over alternatives when time permits.
*/
Provider<KernelAPI> kernelProvider =
new Provider<KernelAPI>() {
@Override
public KernelAPI instance() {
return kernelModule.kernelAPI();
}
};
ConstraintIndexCreator constraintIndexCreator =
new ConstraintIndexCreator(kernelProvider, indexingService);
LegacyIndexStore legacyIndexStore =
new LegacyIndexStore(config, indexConfigStore, kernelProvider, legacyIndexProviderLookup);
LegacyPropertyTrackers legacyPropertyTrackers =
new LegacyPropertyTrackers(
propertyKeyTokenHolder,
nodeManager.getNodePropertyTrackers(),
nodeManager.getRelationshipPropertyTrackers(),
nodeManager);
final NeoStoreTransactionContextSupplier neoStoreTransactionContextSupplier =
new NeoStoreTransactionContextSupplier(neoStore);
StatementOperationParts statementOperations =
buildStatementOperations(
storeLayer,
legacyPropertyTrackers,
constraintIndexCreator,
updateableSchemaState,
guard,
legacyIndexStore);
final TransactionHooks hooks = new TransactionHooks();
final KernelTransactions kernelTransactions =
life.add(
new KernelTransactions(
neoStoreTransactionContextSupplier,
neoStore,
locks,
integrityValidator,
constraintIndexCreator,
indexingService,
labelScanStore,
statementOperations,
updateableSchemaState,
schemaWriteGuard,
schemaIndexProviderMap,
transactionHeaderInformationFactory,
persistenceCache,
storeLayer,
transactionCommitProcess,
indexConfigStore,
legacyIndexProviderLookup,
hooks,
transactionMonitor,
life));
final Kernel kernel = new Kernel(kernelTransactions, hooks, kernelHealth, transactionMonitor);
kernel.registerTransactionHook(transactionEventHandlers);
final NeoStoreFileListing fileListing =
new NeoStoreFileListing(
storeDir, labelScanStore, indexingService, legacyIndexProviderLookup);
return new KernelModule() {
@Override
public TransactionCommitProcess transactionCommitProcess() {
return transactionCommitProcess;
}
@Override
public KernelAPI kernelAPI() {
return kernel;
}
@Override
public KernelTransactions kernelTransactions() {
return kernelTransactions;
}
@Override
public NeoStoreFileListing fileListing() {
return fileListing;
}
};
}
private void buildRecovery(
final FileSystemAbstraction fileSystemAbstraction,
CacheAccessBackDoor cacheAccess,
IndexingService indexingService,
LabelScanStore labelScanStore,
final NeoStore neoStore,
RecoveryVisitor.Monitor recoveryVisitorMonitor,
Recovery.Monitor recoveryMonitor,
final PhysicalLogFiles logFiles,
final LogRotationControl logRotationControl,
final StartupStatisticsProvider startupStatistics) {
final TransactionRepresentationStoreApplier storeRecoverer =
new TransactionRepresentationStoreApplier(
indexingService,
labelScanStore,
neoStore,
cacheAccess,
lockService,
legacyIndexProviderLookup,
indexConfigStore,
IdOrderingQueue.BYPASS);
RecoveryVisitor recoveryVisitor =
new RecoveryVisitor(neoStore, storeRecoverer, recoveryVisitorMonitor);
LogEntryReader<ReadableVersionableLogChannel> logEntryReader =
new LogEntryReaderFactory().versionable();
final Visitor<LogVersionedStoreChannel, IOException> logFileRecoverer =
new LogFileRecoverer(logEntryReader, recoveryVisitor);
Recovery recovery =
new Recovery(
new Recovery.SPI() {
@Override
public void forceEverything() {
logRotationControl.forceEverything();
}
@Override
public long getCurrentLogVersion() {
return neoStore.getCurrentLogVersion();
}
@Override
public Visitor<LogVersionedStoreChannel, IOException> getRecoverer() {
return logFileRecoverer;
}
@Override
public PhysicalLogVersionedStoreChannel getLogFile(long recoveryVersion)
throws IOException {
return PhysicalLogFile.openForVersion(
logFiles, fileSystemAbstraction, recoveryVersion);
}
},
recoveryMonitor);
life.add(recovery);
life.add(
new LifecycleAdapter() {
@Override
public void start() throws Throwable {
startupStatistics.setNumberOfRecoveredTransactions(recoveredCount.get());
recoveredCount.set(0);
}
});
}
