private void UpdateWatermark(T batch)
{
string fullLogName = batch.FullLogName;
IWatermarkFile watermarkFile = this.logManager.FindWatermarkFileObject(fullLogName);
if (watermarkFile != null)
{
watermarkFile.WriteWatermark(batch.LogRanges);
return;
}
string message = string.Format("DatabaseWriter failed to get a watermark instance for {0}", fullLogName);
ExTraceGlobals.WriterTracer.TraceError((long)this.GetHashCode(), message);
EventLogger.Logger.LogEvent(LogUploaderEventLogConstants.Tuple_MissingWatermark, fullLogName, new object[]
{
fullLogName
});
Tools.DebugAssert(false, "WatermarkFile.GetInstanceBasedOnLogName " + fullLogName);
}
internal void DequeueAndWriteOneItem()
{
string text = string.Empty;
IWatermarkFile watermarkFile = null;
try
{
T t = this.queue.Dequeue(this.cancellationContext);
if (t != null)
{
this.perfCounterInstance.BatchQueueLength.Decrement();
text = t.FullLogName;
watermarkFile = this.logManager.FindWatermarkFileObject(text);
if (ExTraceGlobals.WriterTracer.IsTraceEnabled(TraceType.DebugTrace))
{
StringBuilder stringBuilder = new StringBuilder();
foreach (LogFileRange logFileRange in t.LogRanges)
{
string value = string.Format("({0}, {1}) ", logFileRange.StartOffset, logFileRange.EndOffset);
stringBuilder.Append(value);
}
string message = string.Format("For log {0}, writer {1} get batch that has {2} ranges: {3}", new object[]
{
text,
this.id,
t.LogRanges.Count,
stringBuilder.ToString()
});
ExTraceGlobals.WriterTracer.TraceDebug((long)this.GetHashCode(), message);
}
this.WriteBatch(t);
}
else if (!this.CheckServiceStopRequest("DequeueAndWriteOneItem()"))
{
Tools.DebugAssert(this.cancellationContext.StopToken.IsCancellationRequested, "If Enqueue is not cancelled, it should always get a batch back");
}
}
catch (FaultException ex)
{
ExTraceGlobals.WriterTracer.TraceError <string, string>((long)this.GetHashCode(), "Writer failed to write data through web service DAL when processing log {0}. Check the event log on the FFO web service role. The exception is: {1}.", text, ex.Message);
EventLogger.Logger.LogEvent(LogUploaderEventLogConstants.Tuple_WebServiceWriteException, ex.Message, new object[]
{
text,
ex.ToString()
});
ServiceLogger.LogError(ServiceLogger.Component.DatabaseWriter, (LogUploaderEventLogConstants.Message) 3221489634U, ex.Message, this.instance, text);
}
catch (CommunicationException ex2)
{
ExTraceGlobals.WriterTracer.TraceError <string, string>((long)this.GetHashCode(), "Writer failed to write data through web service DAL when processing log {0}. The exception is: {1}.", text, ex2.Message);
EventLogger.Logger.LogEvent(LogUploaderEventLogConstants.Tuple_WebServiceWriteException, ex2.Message, new object[]
{
text,
ex2.ToString()
});
ServiceLogger.LogError(ServiceLogger.Component.DatabaseWriter, (LogUploaderEventLogConstants.Message) 3221489633U, ex2.Message, this.instance, text);
}
catch (ADTopologyEndpointNotFoundException ex3)
{
ExTraceGlobals.WriterTracer.TraceError <string, string>((long)this.GetHashCode(), "Writer caught an ADTopologyEndpointNotFoundException when processing log {0}. Details is: {1}", text, ex3.Message);
EventLogger.Logger.LogEvent(LogUploaderEventLogConstants.Tuple_ADTopologyEndpointNotFound, ex3.Message, new object[]
{
text,
ex3.Message
});
ServiceLogger.LogError(ServiceLogger.Component.DatabaseWriter, (LogUploaderEventLogConstants.Message) 3221489629U, ex3.Message, this.instance, text);
}
catch (Exception ex4)
{
if (!(ex4 is ThreadAbortException) || !this.cancellationContext.StopToken.IsCancellationRequested)
{
string text2 = string.Format("Writer caught an exception when processing log {0}: {1}", text, ex4);
ExTraceGlobals.WriterTracer.TraceError((long)this.GetHashCode(), text2);
EventLogger.Logger.LogEvent(LogUploaderEventLogConstants.Tuple_DatabaseWriterUnknownException, ex4.Message, new object[]
{
text,
ex4
});
EventNotificationItem.Publish(ExchangeComponent.Name, "UnexpectedWriterError", null, text2, ResultSeverityLevel.Error, false);
this.perfCounterInstance.TotalUnexpectedWriterErrors.Increment();
ServiceLogger.LogError(ServiceLogger.Component.DatabaseWriter, (LogUploaderEventLogConstants.Message) 3221489617U, text2, this.instance, text);
throw;
}
Thread.ResetAbort();
ServiceLogger.LogInfo(ServiceLogger.Component.DatabaseWriter, LogUploaderEventLogConstants.Message.LogMonitorRequestedStop, Thread.CurrentThread.Name + " received thread abort event", this.instance, "");
}
finally
{
if (watermarkFile != null)
{
watermarkFile.InMemoryCountDecrease();
}
}
}
