private bool FlushPayload(string path, PayloadQueue queue)
{
var payload = queue.DequeuePendingPayload();
if (payload == null)
{
return(false);
}
var metricsCount = payload.MetricsCount;
var bytes = payload.Used;
Debug.WriteLine($"BosunReporter: Flushing metrics batch. {metricsCount} metrics. {bytes} bytes.");
var info = new AfterPostInfo();
var timer = new StopwatchStruct();
try
{
timer.Start();
PostToBosun(path, true, sw => sw.Write(payload.Data, 0, payload.Used));
timer.Stop();
queue.ReleasePayload(payload);
PostSuccessCount++;
TotalMetricsPosted += payload.MetricsCount;
return(true);
}
catch (Exception ex)
{
timer.Stop();
// posting to Bosun failed, so put the batch back in the queue to try again later
Debug.WriteLine("BosunReporter: Posting to the Bosun API failed. Pushing metrics back onto the queue.");
PostFailCount++;
info.Exception = ex;
queue.AddPendingPayload(payload);
throw;
}
finally
{
// don't use the payload variable in this block - it may have been released back to the pool by now
info.Count = metricsCount;
info.BytesWritten = bytes;
info.MillisecondsDuration = timer.GetElapsedMilliseconds();
LastPostInfo = info;
// Use BeginInvoke here to invoke the event listeners asynchronously.
// We're inside a lock, so calling the listeners synchronously would put us at risk of a deadlock.
AfterPost?.BeginInvoke(info, s_asyncNoopCallback, null);
}
}
private void FlushBatch()
{
var batch = DequeueMetricsBatch();
if (batch.Count == 0)
{
return;
}
Debug.WriteLine("BosunReporter: Flushing metrics batch. Size: " + batch.Count);
var info = new AfterPostInfo();
var timer = new StopwatchStruct();
try
{
timer.Start();
PostToBosun("/api/put", true, sw => WriteJsonArrayBody(sw, batch));
timer.Stop();
PostSuccessCount++;
TotalMetricsPosted += batch.Count;
}
catch (Exception ex)
{
timer.Stop();
// posting to Bosun failed, so put the batch back in the queue to try again later
Debug.WriteLine("BosunReporter: Posting to the Bosun API failed. Pushing metrics back onto the queue.");
PostFailCount++;
info.Exception = ex;
EnqueueMetrics(batch);
throw;
}
finally
{
info.Count = batch.Count;
info.MillisecondsDuration = timer.GetElapsedMilliseconds();
LastPostInfo = info;
// Use BeginInvoke here to invoke the event listeners asynchronously.
// We're inside a lock, so calling the listeners synchronously would put us at risk of a deadlock.
AfterPost?.BeginInvoke(info, s_asyncNoopCallback, null);
}
}