private void PollCancellingJobs()
{
List<Job> temp = new List<Job>();
using (var context = ContextManager.Instance.CreateContext(ConnectionMode.AutoOpen, TransactionMode.AutoCommit))
{
var jf = new JobInstanceFactory(context);
foreach (var queue in Cluster.Queues.Values)
{
foreach (var ji in jf.FindJobInstances(Guid.Empty, queue.Guid, null, JobExecutionState.CancelRequested))
{
lock (queue)
{
if (queue.Jobs.ContainsKey(ji.Guid))
{
temp.Add(queue.Jobs[ji.Guid]);
}
}
}
}
}
// This is to be done outside the registry context
foreach (var job in temp)
{
CancelOrTimeOutJob(job, false);
}
}
/// <summary>
/// Process jobs that are found in an intermediate stage, possibly
/// due to an unexpected shutdown of the scheduler.
/// </summary>
private void ProcessInterruptedJobs()
{
using (Context context = ContextManager.Instance.CreateContext(ConnectionMode.AutoOpen, TransactionMode.AutoCommit))
{
int q;
Event e;
var jf = new JobInstanceFactory(context);
q = 1;
foreach (var qi in Cluster.Queues.Keys)
{
// Process previously interrupted jobs (that are marked as running)
// Process jobs that are marked as executing - these remained in this state
// because of a failure in the scheduler
foreach (var j in jf.FindJobInstances(Guid.Empty, qi, null,
JobExecutionState.Executing | JobExecutionState.Persisting | JobExecutionState.Cancelling))
{
// Locking must be handled
context.ContextGuid = j.WorkflowInstanceId;
j.ReleaseLock(true);
j.JobExecutionStatus = JobExecutionState.Failed;
j.ExceptionMessage = Jhu.Graywulf.Registry.ExceptionMessages.SchedulerUnexpectedShutdown;
j.Save();
j.RescheduleIfRecurring();
q++;
}
}
if (q > 0)
{
e = new Event("Jhu.Graywulf.Scheduler.QueueManager.ProcessInterruptedJobs[Executing]", Guid.Empty);
e.Message = String.Format("Marked {0} jobs as failed.", q);
LogEvent(e);
}
q = 0;
foreach (var qi in Cluster.Queues.Keys)
{
// Jobs marked as waiting probably can be restarted without a side effect
foreach (var j in jf.FindJobInstances(Guid.Empty, qi, null, JobExecutionState.Starting))
{
// Locking must be handled
context.ContextGuid = j.WorkflowInstanceId;
j.ReleaseLock(true);
j.JobExecutionStatus = JobExecutionState.Scheduled;
j.Save();
q++;
}
}
if (q > 0)
{
e = new Event("Jhu.Graywulf.Scheduler.QueueManager.ProcessInterruptedJobs[Starting]", Guid.Empty);
e.Message = String.Format("Marked {0} jobs as scheduled.", q);
LogEvent(e);
}
}
}
protected void PurgeTestJobs()
{
using (var context = ContextManager.Instance.CreateContext(ConnectionMode.AutoOpen, TransactionMode.AutoCommit))
{
var ef = new EntityFactory(context);
var jd = ef.LoadEntity<JobDefinition>(Cluster.AppSettings.ClusterName, typeof(Jhu.Graywulf.Jobs.Test.TestJob).Name);
var jf = new JobInstanceFactory(context);
foreach (var job in jf.FindJobInstances(Guid.Empty, Guid.Empty, new HashSet<Guid>() { jd.Guid }, JobExecutionState.Scheduled))
{
job.Cancel();
}
}
}