private async Task <RecoverMisfiredJobsResult> Manage()
{
try
{
log.Debug("Scanning for misfires...");
RecoverMisfiredJobsResult res = await jobStoreSupport.DoRecoverMisfires(requestorId, cancellationTokenSource.Token).ConfigureAwait(false);
numFails = 0;
return(res);
}
catch (Exception e)
{
if (numFails % jobStoreSupport.RetryableActionErrorLogThreshold == 0)
{
log.ErrorException("Error handling misfires: " + e.Message, e);
}
numFails++;
}
return(RecoverMisfiredJobsResult.NoOp);
}
private async Task Run()
{
var token = cancellationTokenSource.Token;
while (!token.IsCancellationRequested)
{
token.ThrowIfCancellationRequested();
DateTimeOffset sTime = SystemTime.UtcNow();
RecoverMisfiredJobsResult recoverMisfiredJobsResult = await Manage().ConfigureAwait(false);
if (recoverMisfiredJobsResult.ProcessedMisfiredTriggerCount > 0)
{
jobStoreSupport.SignalSchedulingChangeImmediately(recoverMisfiredJobsResult.EarliestNewTime);
}
token.ThrowIfCancellationRequested();
TimeSpan timeToSleep = TimeSpan.FromMilliseconds(50); // At least a short pause to help balance threads
if (!recoverMisfiredJobsResult.HasMoreMisfiredTriggers)
{
timeToSleep = jobStoreSupport.MisfireThreshold - (SystemTime.UtcNow() - sTime);
if (timeToSleep <= TimeSpan.Zero)
{
timeToSleep = TimeSpan.FromMilliseconds(50);
}
if (numFails > 0)
{
timeToSleep = jobStoreSupport.DbRetryInterval > timeToSleep ? jobStoreSupport.DbRetryInterval : timeToSleep;
}
}
await Task.Delay(timeToSleep, token).ConfigureAwait(false);
}
}