// Startup sequence
// By doing this sequence of method calls we can ensure that no dependency cycles exist, and get a
// clearer view
// of the dependency tree, starting at the bottom
private void upgradeStore(
File store, StoreUpgrader storeMigrationProcess, SchemaIndexProvider indexProvider) {
storeMigrationProcess.addParticipant(indexProvider.storeMigrationParticipant());
storeMigrationProcess.migrateIfNeeded(store.getParentFile(), indexProvider, pageCache);
}
@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);
}
}