public DocumentDatabase(string name, RavenConfiguration configuration, ServerStore serverStore)
{
Scripts = new ScriptRunnerCache(this);
_logger = LoggingSource.Instance.GetLogger <DocumentDatabase>(Name);
_serverStore = serverStore;
StartTime = SystemTime.UtcNow;
Name = name;
Configuration = configuration;
try
{
using (_serverStore.ContextPool.AllocateOperationContext(out TransactionOperationContext ctx))
using (ctx.OpenReadTransaction())
{
MasterKey = serverStore.GetSecretKey(ctx, Name);
var databaseRecord = _serverStore.Cluster.ReadDatabase(ctx, Name);
if (databaseRecord != null)
{
// can happen when we are in the process of restoring a database
if (databaseRecord.Encrypted && MasterKey == null)
{
throw new InvalidOperationException($"Attempt to create encrypted db {Name} without supplying the secret key");
}
if (databaseRecord.Encrypted == false && MasterKey != null)
{
throw new InvalidOperationException($"Attempt to create a non-encrypted db {Name}, but a secret key exists for this db.");
}
}
}
QueryMetadataCache = new QueryMetadataCache();
IoChanges = new IoChangesNotifications();
Changes = new DocumentsChanges();
DocumentTombstoneCleaner = new DocumentTombstoneCleaner(this);
DocumentsStorage = new DocumentsStorage(this);
IndexStore = new IndexStore(this, serverStore, _indexAndTransformerLocker);
EtlLoader = new EtlLoader(this, serverStore);
ReplicationLoader = new ReplicationLoader(this, serverStore);
SubscriptionStorage = new SubscriptionStorage(this, serverStore);
Metrics = new MetricsCountersManager();
TxMerger = new TransactionOperationsMerger(this, DatabaseShutdown);
HugeDocuments = new HugeDocuments(configuration.PerformanceHints.HugeDocumentsCollectionSize,
configuration.PerformanceHints.HugeDocumentSize.GetValue(SizeUnit.Bytes));
ConfigurationStorage = new ConfigurationStorage(this);
NotificationCenter = new NotificationCenter.NotificationCenter(ConfigurationStorage.NotificationsStorage, Name, _databaseShutdown.Token);
Operations = new Operations.Operations(Name, ConfigurationStorage.OperationsStorage, NotificationCenter, Changes);
DatabaseInfoCache = serverStore.DatabaseInfoCache;
RachisLogIndexNotifications = new RachisLogIndexNotifications(DatabaseShutdown);
CatastrophicFailureNotification = new CatastrophicFailureNotification(e =>
{
serverStore.DatabasesLandlord.UnloadResourceOnCatastrophicFailure(name, e);
});
}
catch (Exception)
{
Dispose();
throw;
}
}
private void NotifyFeaturesAboutValueChange(DatabaseRecord record)
{
lock (this)
{
SubscriptionStorage?.HandleDatabaseValueChange(record);
EtlLoader?.HandleDatabaseValueChanged(record);
}
}
public void Initialize(InitializeOptions options = InitializeOptions.None)
{
try
{
NotificationCenter.Initialize(this);
DocumentsStorage.Initialize((options & InitializeOptions.GenerateNewDatabaseId) == InitializeOptions.GenerateNewDatabaseId);
TxMerger.Start();
ConfigurationStorage.Initialize();
if ((options & InitializeOptions.SkipLoadingDatabaseRecord) == InitializeOptions.SkipLoadingDatabaseRecord)
{
return;
}
long index;
DatabaseRecord record;
using (_serverStore.ContextPool.AllocateOperationContext(out TransactionOperationContext context))
using (context.OpenReadTransaction())
record = _serverStore.Cluster.ReadDatabase(context, Name, out index);
if (record == null)
{
DatabaseDoesNotExistException.Throw(Name);
}
PeriodicBackupRunner = new PeriodicBackupRunner(this, _serverStore);
_indexStoreTask = IndexStore.InitializeAsync(record);
ReplicationLoader?.Initialize(record);
EtlLoader.Initialize(record);
DocumentTombstoneCleaner.Start();
try
{
_indexStoreTask.Wait(DatabaseShutdown);
}
finally
{
_indexStoreTask = null;
}
SubscriptionStorage.Initialize();
NotifyFeaturesAboutStateChange(record, index);
}
catch (Exception)
{
Dispose();
throw;
}
}
private void NotifyFeaturesAboutStateChange(DatabaseRecord record, long index)
{
lock (this)
{
Debug.Assert(string.Equals(Name, record.DatabaseName, StringComparison.OrdinalIgnoreCase),
$"{Name} != {record.DatabaseName}");
// index and LastDatabaseRecordIndex could have equal values when we transit from/to passive and want to update the tasks.
if (LastDatabaseRecordIndex > index)
{
if (_logger.IsInfoEnabled)
{
_logger.Info($"Skipping record {index} (current {LastDatabaseRecordIndex}) for {record.DatabaseName} because it was already precessed.");
}
return;
}
if (_logger.IsInfoEnabled)
{
_logger.Info($"Starting to process record {index} (current {LastDatabaseRecordIndex}) for {record.DatabaseName}.");
}
try
{
InitializeFromDatabaseRecord(record);
LastDatabaseRecordIndex = index;
IndexStore.HandleDatabaseRecordChange(record, index);
ReplicationLoader?.HandleDatabaseRecordChange(record);
EtlLoader?.HandleDatabaseRecordChange(record);
OnDatabaseRecordChanged(record);
SubscriptionStorage?.HandleDatabaseValueChange(record);
if (_logger.IsInfoEnabled)
{
_logger.Info($"Finish to process record {index} for {record.DatabaseName}.");
}
}
catch (Exception e)
{
if (_logger.IsInfoEnabled)
{
_logger.Info($"Encounter an error while processing record {index} for {record.DatabaseName}.", e);
}
throw;
}
}
}
public unsafe void Dispose()
{
if (_databaseShutdown.IsCancellationRequested)
{
return; // double dispose?
}
lock (this)
{
if (_databaseShutdown.IsCancellationRequested)
{
return; // double dispose?
}
//before we dispose of the database we take its latest info to be displayed in the studio
try
{
var databaseInfo = GenerateDatabaseInfo();
if (databaseInfo != null)
{
DatabaseInfoCache?.InsertDatabaseInfo(databaseInfo, Name);
}
}
catch (Exception e)
{
// if we encountered a catastrophic failure we might not be able to retrieve database info
if (_logger.IsInfoEnabled)
{
_logger.Info("Failed to generate and store database info", e);
}
}
_databaseShutdown.Cancel();
// we'll wait for 1 minute to drain all the requests
// from the database
var sp = Stopwatch.StartNew();
while (sp.ElapsedMilliseconds < 60 * 1000)
{
if (Interlocked.Read(ref _usages) == 0)
{
break;
}
if (_waitForUsagesOnDisposal.Wait(1000))
{
_waitForUsagesOnDisposal.Reset();
}
}
var exceptionAggregator = new ExceptionAggregator(_logger, $"Could not dispose {nameof(DocumentDatabase)} {Name}");
foreach (var connection in RunningTcpConnections)
{
exceptionAggregator.Execute(() =>
{
connection.Dispose();
});
}
exceptionAggregator.Execute(() =>
{
TxMerger?.Dispose();
});
if (_indexStoreTask != null)
{
exceptionAggregator.Execute(() =>
{
_indexStoreTask.Wait(DatabaseShutdown);
});
}
exceptionAggregator.Execute(() =>
{
IndexStore?.Dispose();
});
exceptionAggregator.Execute(() =>
{
ExpiredDocumentsCleaner?.Dispose();
});
exceptionAggregator.Execute(() =>
{
PeriodicBackupRunner?.Dispose();
});
exceptionAggregator.Execute(() =>
{
DocumentTombstoneCleaner?.Dispose();
});
exceptionAggregator.Execute(() =>
{
ReplicationLoader?.Dispose();
});
exceptionAggregator.Execute(() =>
{
EtlLoader?.Dispose();
});
exceptionAggregator.Execute(() =>
{
Operations?.Dispose(exceptionAggregator);
});
exceptionAggregator.Execute(() =>
{
NotificationCenter?.Dispose();
});
exceptionAggregator.Execute(() =>
{
SubscriptionStorage?.Dispose();
});
exceptionAggregator.Execute(() =>
{
ConfigurationStorage?.Dispose();
});
exceptionAggregator.Execute(() =>
{
DocumentsStorage?.Dispose();
});
exceptionAggregator.Execute(() =>
{
_databaseShutdown.Dispose();
});
exceptionAggregator.Execute(() =>
{
if (MasterKey == null)
{
return;
}
fixed(byte *pKey = MasterKey)
{
Sodium.sodium_memzero(pKey, (UIntPtr)MasterKey.Length);
}
});
exceptionAggregator.ThrowIfNeeded();
}
}
public void Initialize(InitializeOptions options = InitializeOptions.None)
{
try
{
_addToInitLog("Initializing NotificationCenter");
NotificationCenter.Initialize(this);
_addToInitLog("Initializing DocumentStorage");
DocumentsStorage.Initialize((options & InitializeOptions.GenerateNewDatabaseId) == InitializeOptions.GenerateNewDatabaseId);
_addToInitLog("Starting Transaction Merger");
TxMerger.Start();
_addToInitLog("Initializing ConfigurationStorage");
ConfigurationStorage.Initialize();
if ((options & InitializeOptions.SkipLoadingDatabaseRecord) == InitializeOptions.SkipLoadingDatabaseRecord)
{
return;
}
_addToInitLog("Loading Database");
long index;
DatabaseRecord record;
using (_serverStore.ContextPool.AllocateOperationContext(out TransactionOperationContext context))
using (context.OpenReadTransaction())
record = _serverStore.Cluster.ReadDatabase(context, Name, out index);
if (record == null)
{
DatabaseDoesNotExistException.Throw(Name);
}
PeriodicBackupRunner = new PeriodicBackupRunner(this, _serverStore);
_addToInitLog("Initializing IndexStore (async)");
_indexStoreTask = IndexStore.InitializeAsync(record);
_addToInitLog("Initializing Replication");
ReplicationLoader?.Initialize(record);
_addToInitLog("Initializing ETL");
EtlLoader.Initialize(record);
DocumentTombstoneCleaner.Start();
try
{
_indexStoreTask.Wait(DatabaseShutdown);
}
finally
{
_addToInitLog("Initializing IndexStore completed");
_indexStoreTask = null;
}
SubscriptionStorage.Initialize();
_addToInitLog("Initializing SubscriptionStorage completed");
TaskExecutor.Execute((state) =>
{
try
{
NotifyFeaturesAboutStateChange(record, index);
}
catch
{
// We ignore the exception since it was caught in the function itself
}
}, null);
}
catch (Exception)
{
Dispose();
throw;
}
}
private static DatabaseOngoingTasksInfoItem GetOngoingTasksInfoItem(DocumentDatabase database, ServerStore serverStore, TransactionOperationContext context, out long ongoingTasksCount)
{
var dbRecord = database.ReadDatabaseRecord();
var extRepCount = dbRecord.ExternalReplications.Count;
long extRepCountOnNode = GetTaskCountOnNode <ExternalReplication>(database, dbRecord, serverStore, dbRecord.ExternalReplications,
task => ReplicationLoader.GetExternalReplicationState(serverStore, database.Name, task.TaskId));
long replicationHubCountOnNode = 0;
var replicationHubCount = database.ReplicationLoader.OutgoingHandlers.Count(x => x.IsPullReplicationAsHub);
replicationHubCountOnNode += replicationHubCount;
var replicationSinkCount = dbRecord.SinkPullReplications.Count;
long replicationSinkCountOnNode = GetTaskCountOnNode <PullReplicationAsSink>(database, dbRecord, serverStore, dbRecord.SinkPullReplications, task => null);
var ravenEtlCount = database.EtlLoader.RavenDestinations.Count;
long ravenEtlCountOnNode = GetTaskCountOnNode <RavenEtlConfiguration>(database, dbRecord, serverStore, database.EtlLoader.RavenDestinations,
task => EtlLoader.GetProcessState(task.Transforms, database, task.Name));
var sqlEtlCount = database.EtlLoader.SqlDestinations.Count;
long sqlEtlCountOnNode = GetTaskCountOnNode <SqlEtlConfiguration>(database, dbRecord, serverStore, database.EtlLoader.SqlDestinations,
task => EtlLoader.GetProcessState(task.Transforms, database, task.Name));
var olapEtlCount = database.EtlLoader.OlapDestinations.Count;
long olapEtlCountOnNode = GetTaskCountOnNode <OlapEtlConfiguration>(database, dbRecord, serverStore, database.EtlLoader.OlapDestinations,
task => EtlLoader.GetProcessState(task.Transforms, database, task.Name));
var periodicBackupCount = database.PeriodicBackupRunner.PeriodicBackups.Count;
long periodicBackupCountOnNode = GetTaskCountOnNode <PeriodicBackupConfiguration>(database, dbRecord, serverStore,
database.PeriodicBackupRunner.PeriodicBackups.Select(x => x.Configuration),
task => database.PeriodicBackupRunner.GetBackupStatus(task.TaskId),
task => task.Name.StartsWith("Server Wide") == false);
var subscriptionCount = database.SubscriptionStorage.GetAllSubscriptionsCount();
long subscriptionCountOnNode = GetSubscriptionCountOnNode(database, dbRecord, serverStore, context);
ongoingTasksCount = extRepCount + replicationHubCount + replicationSinkCount +
ravenEtlCount + sqlEtlCount + olapEtlCount + periodicBackupCount + subscriptionCount;
return(new DatabaseOngoingTasksInfoItem()
{
Database = database.Name,
ExternalReplicationCount = extRepCountOnNode,
ReplicationHubCount = replicationHubCountOnNode,
ReplicationSinkCount = replicationSinkCountOnNode,
RavenEtlCount = ravenEtlCountOnNode,
SqlEtlCount = sqlEtlCountOnNode,
OlapEtlCount = olapEtlCountOnNode,
PeriodicBackupCount = periodicBackupCountOnNode,
SubscriptionCount = subscriptionCountOnNode
});
}
