public async Task <JobExecutionStatus> ExecuteAsync(ICronusJob <object> job, CancellationToken cancellationToken = default)
{
tokenSource = CancellationTokenSource.CreateLinkedTokenSource(cancellationToken);
CancellationToken ct = tokenSource.Token;
_jobName = job.Name;
try
{
CronusJobState jobState = await GetJobStateAsync(ct).ConfigureAwait(false);
if (jobState == CronusJobState.UpForGrab)
{
await job.SyncInitialStateAsync(this, ct).ConfigureAwait(false);
bool iAmKing = await BecomeKingAsync(job.Data, ct).ConfigureAwait(false);
if (iAmKing)
{
using (Timer pinger = new Timer(PingTimerMethod, tokenSource, TimeSpan.Zero, TimeSpan.FromSeconds(10)))
{
jobState = await GetJobStateAsync(ct).ConfigureAwait(false);
if (jobState == CronusJobState.UpForGrab)
{
return(await job.RunAsync(this, ct).ConfigureAwait(false));
}
}
}
else // How to reproduce this case: 1. schedule a job twice for after 30 seconds (double click rebuild for example) and then kill and start the application
{
// A thread got here a millisecond before you, snatched your job and started running it , so you are not the king.
return(JobExecutionStatus.Running);
}
}
if (jobState == CronusJobState.Running)
{
return(JobExecutionStatus.Running);
}
}
catch (Exception) { return(JobExecutionStatus.Failed); }
return(JobExecutionStatus.Completed);
}
public async Task HandleAsync(RebuildIndexInternal sagaTimeout)
{
ICronusJob <object> job = null;
// we need to redesign the job factories
var theId = sagaTimeout.EventStoreIndexRequest.Id.Id;
if (theId.Equals(typeof(EventToAggregateRootId).GetContractId(), StringComparison.OrdinalIgnoreCase))
{
job = jobFactory.CreateJob(sagaTimeout.EventStoreIndexRequest.Timebox);
}
else if (theId.Equals(typeof(MessageCounterIndex).GetContractId(), StringComparison.OrdinalIgnoreCase))
{
job = messageCounterJobFactory.CreateJob(sagaTimeout.EventStoreIndexRequest.Timebox);
}
else
{
return;
}
JobExecutionStatus result = await jobRunner.ExecuteAsync(job).ConfigureAwait(false);
if (result == JobExecutionStatus.Running)
{
RequestTimeout(new RebuildIndexInternal(sagaTimeout.EventStoreIndexRequest, DateTime.UtcNow.AddSeconds(30)));
}
else if (result == JobExecutionStatus.Failed)
{
// log error
RequestTimeout(new RebuildIndexInternal(sagaTimeout.EventStoreIndexRequest, DateTime.UtcNow.AddSeconds(30)));
}
else if (result == JobExecutionStatus.Completed)
{
var finalize = new FinalizeEventStoreIndexRequest(sagaTimeout.EventStoreIndexRequest.Id);
commandPublisher.Publish(finalize);
}
}
public Task <JobExecutionStatus> ExecuteAsync(ICronusJob <object> job, CancellationToken cancellationToken = default)
{
return(job.RunAsync(clusterOperations, cancellationToken));
}
