Scheduler tasks not running automatically: EPiServer CMS6

nz.piquet@gmail.com

Vote:

EPiServer CMS6

It's been reported elsewhere (http://world.episerver.com/FAQ/Items/Scheduler-does-not-run-scheduled-jobs-automatically/) that scheduler does not run automatically, but will run okay when started manually.

I am experiencing this problem and have worked through the remedy suggested in the above link - but no joy.

After restarting IIS the new EPiServer.SchedulerService.Sites.xml file is created (although it was identical to the renamed one), and still the scheduler will not run automatically.

When the scheduler is kicked off manually to run our subscription job, the logs get a couple of errors that may be related to this problem: regardless, advice on how to address these errors would be appreciated. Please let me know if they should be separated out to new topics to help others when searching the forum:

One:

2011-05-10 16:13:02,976 ERROR [1] EPiServer.Core.OptimisticCache`1.Read - cacheKey=EPPageData:5909, last exception was:
EPiServer.Core.PageNotFoundException: Page 5909 was not found
   at EPiServer.DataAccess.PageLoadDB.LoadPageInternal(PageReference pageLink, Int32 languageBranchId, IDataReader reader)

   ... [snip] ...

   at EPiServer.Core.OptimisticCache`1.Read(String cacheKey, ReadAndCacheObject`1 readAndCacheObject)

Two:

2011-05-10 16:13:26,398 ERROR [6] EPiServer.Global.Global_Error - 1.2.5 Unhandled exception in ASP.NET
System.Web.HttpException: Server cannot append header after HTTP headers have been sent.
   at System.Web.HttpResponse.AppendHeader(String name, String value)

   ... [snip] ...

   at System.Web.HttpApplication.ExecuteStep(IExecutionStep step, Boolean& completedSynchronously)

For ONE - I would like to know how to remove the deleted page reference from the cache

For both ONE and TWO - could they be related to the scheduler not working automatically, or where else can I investigate.

#50682

May 10, 2011 6:33

nz.piquet@gmail.com

Vote:

Resolved

Should anyone else encounter a similar problem where the documented steps (http://world.episerver.com/FAQ/Items/Scheduler-does-not-run-scheduled-jobs-automatically/) don't help, this is what occured.

In mid-April we changed the domain our site was running on - making all the appropriate changes under our site config files (and in the EPiServer admin system area). The scheduler stopped working from this date and it was always anticipated that this was a potential cause for the problem ... but still not definite.

After enabling scheduler service logging (http://www.epinova.no/blog/Tore-Gjerdrum/dates/2010/11/enable-debugging-in-episerver-scheduler/) the logs showed that [at least] one task was scheduled next to run in mid-April ... a past date. Checking through all next run dates and setting them to a future time resolved the problem.

#50851

May 16, 2011 2:17

Torbjörn Andersson

Vote:

Had the same problem but I also needed to edit an old NextExec item directly in the database with:

select * from tblScheduledItem where pkID ='b740749e-61aa-48ce-b38a-5119ce6b453a'

update tblScheduledItem set NextExec = '2011-08-10 11:53:03.430' where pkID = 'b740749e-61aa-48ce-b38a-5119ce6b453a'

#52696

Aug 10, 2011 10:22

nz.piquet@gmail.com

Vote:

One additional thing on this: the problem recurred, and was able to be fixed in the same way each time. Further investigation proved to be that one of the scheduled tasks was not completing (have not remedied that one yet - but want to: te execellent tool LinkDetective is running awry for us). Stopping the errant scheduled task has resolved the problem completely in the interim.

#52755

Aug 11, 2011 22:44

Vote:

Did this also resolve the errors you got regarding EPiServer.Core.OptimisticCache ?

#52968

Aug 23, 2011 14:23

Torbjörn Andersson

Vote:

Finally I thought I got the solution, I tried this http://world.episerver.com/Blogs/Tobias-Nilsson/Dates/2010/12/Troubleshooting-the-Scheduler/ but after 5 days it stopped again...

#52969

Aug 23, 2011 14:50

Kalle A

Vote:

I think this is the same problem I had. You should contact EPiServer support, see this thread: http://world.episerver.com/Modules/Forum/Pages/thread.aspx?id=52210

#52971

Aug 23, 2011 16:00

nz.piquet@gmail.com

Vote:

@Kjetil - sorry for delayed replied: No, the OptimisticCache errors still occur. I have seen an article for supressing these from logs. I can try and hunt that out if it's of interest.

@Torbjorn - We've had another site behave such as yours but htis time unable to find a errant scheduled task associated with it. It came right (magically - which is always disappointing). I will have a read of Kalle's linked thread.

#55713

Dec 14, 2011 5:21

Tobias Nilsson

Vote:

The optimistic cache error is when the we can't find the page in the cache so we try to get it from the database, but we can't find it there either. So there must be some link in the code that points to a deleted page.

#55714

Dec 14, 2011 8:44

Vote:

Do you mean that the link is referenced in the code somewhere, and not as a part of the content?

Any suggestions as to how we can trace these links' origin?

@piquet: I have also seen an article about supressing this form the logs, but rather than treating the symptoms, I would like to treat the cause. :)

#55716

Edited, Dec 14, 2011 9:01

Tobias Nilsson

Vote:

Part of the content or part of the code. You can have hardcoded links in your code. If you enable the log on debug level you should be able to follow what happened before the error.

#55717

Dec 14, 2011 9:04

nz.piquet@gmail.com

Vote:

@Kjetil: Agreed - wouldn't it be nice to have empty error logs! :-) In this case, and agreeing with Toni, I feel this is much less of an ERROR and would better sent to logs as a WARN. Anyway, I'm straying from topic.

#55737

Dec 14, 2011 20:42

nz.piquet@gmail.com

Vote:

Just to close off reducing the OptimisticCache logging: The line in EPiServerLog.config is:

<logger name="EPiServer.Core.OptimisticCache" additivity="false">
<level value="Error" />
</logger>

#55738

Dec 14, 2011 20:46

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Scheduler tasks not running automatically: EPiServer CMS6