Code

How to restart a job in “Error” or “Frozen Completed” status


Sometimes can happen that some recursively scheduled jobs can go wrong or get stuck, you can re-enable them automatically and after consult the log to see errors; it is not a perfect solution but sometimes the error can be a simple error ex: “another user has modified..” etc. This function could be useful for NAV versions up to 2016, NAV 2017 has an improved management and a robust task scheduling system.

Samples of Jobs in “Error” or “Frozen Completed State”

Before Execution

After Execution

The Simple Solution

The solution is based on a codeunit that takes care of reactivating the jobs in the state “error” or “completed”, it can be changed according to the needs.

It can be scheduled:

  • Directly into the NAS (in the same or other NAS instances)
  • On Windows Task Scheduler with codeunit invoked by Powershell

 

Fields Added on Table “Job Queue Entry”

 

Codeunit 50000 “ChangeJobsStatus”

CODE

OnRun()

ChangeJobStatus;

ChangeJobStatus()

Documentation()

“Restart Job” IF in errorin processfinished state

OnRun()

IF ChangeJobStatus() = TRUE THEN

MESSAGE(‘Jobs Status Changed!’)

ELSE

MESSAGE(‘Nothing Changed!’)

LOCAL ChangeJobStatus() JobStatusChanged : Boolean

//”Restart Job” IF in errorin processfinished state

JobStatusChanged := FALSE;

recJobQEntry.RESET;

IF recJobQEntry.FINDSET THEN

REPEAT

CASE recJobQEntry.Status OF

//*** STATE: IN PROCESS

recJobQEntry.Status::”In Process”:

BEGIN

recJobQLogEntry.RESET;

recJobQLogEntry.SETRANGE(“Object Type to Run”,recJobQEntry.”Object Type to Run”); //Check Run.Time

recJobQLogEntry.SETRANGE(“Object ID to Run”,recJobQEntry.”Object ID to Run”);

//Check Duration Process Max

IF recJobQEntry.”Duration Process Max” > 0 THEN

IF recJobQLogEntry.FINDLAST THEN

IF CURRENTDATETIME – recJobQLogEntry.”Start Date/Time” > recJobQEntry.”Duration Process Max” THEN BEGIN //CHECK MAX DURATION TIME

recJobQEntry.Status := recJobQEntry.Status::Ready; // –> SET STATUS TO READY

recJobQEntry.MODIFY(FALSE);

JobStatusChanged := TRUE;

END

END;

//*** STATE: ERROR OR FINISHED

recJobQEntry.Status::Error, recJobQEntry.Status::Finished: //IF “ERROR” OR “FINISHED”

BEGIN

recJobQEntry.Status := recJobQEntry.Status::Ready; // –> SET STATUS TO READY

recJobQEntry.MODIFY(FALSE);

JobStatusChanged := TRUE;

END;

END; //END CASE

COMMIT;

UNTIL recJobQEntry.NEXT = 0;

EXIT(JobStatusChanged);

Download from MSDN https://gallery.technet.microsoft.com/How-to-restart-a-job-in-8aca5516

 

About Scheduling

1) With NAV Codeunit scheduled by NAS

After Execution

2) With NAV Codeunit invoked by Powershell and scheduled by Windows Task Scheduler

Import-Module ‘C:Program FilesMicrosoft Dynamics NAV100ServiceMicrosoft.Dynamics.Nav.Management.dll’

Invoke-NAVCodeunit dynamicsnav100 -CodeunitId 50000 -CompanyName ‘CRONUS Italia S.p.A.’

To Schedule Powershell Script by Windows Task Scheduler

An easy way to schedule a PowerShell script is, to use Windows Task Scheduler, look at this post:

Coffee Break: Proactive Monitoring with Task Scheduler

https://blogs.msdn.microsoft.com/nav/2016/01/19/coffee-break-proactive-monitoring-with-task-scheduler/

My Old Post about NAV 2017 Task Scheduler

https://robertostefanettinavblog.com/2016/11/04/nav-2017-task-scheduler/

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