[jira] Commented: (SLING-1040) Too much synchronization in QuartzScheduler?

["Felix Meschberger (JIRA)" <ji...@apache.org>]

    [ https://issues.apache.org/jira/browse/SLING-1040?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12729107#action_12729107 ] 

Felix Meschberger commented on SLING-1040:
------------------------------------------

It looks like the QuartzScheduler is holding a lock on an Array Liste while calling into the framework. Probably the lock should be released before calling into the framework (caveat: not looking at the code, just the stacktrace)

> Too much synchronization in QuartzScheduler?
> --------------------------------------------
>
>                 Key: SLING-1040
>                 URL: https://issues.apache.org/jira/browse/SLING-1040
>             Project: Sling
>          Issue Type: Bug
>    Affects Versions: Commons Scheduler 2.0.4
>            Reporter: Bertrand Delacretaz
>            Priority: Minor
>         Attachments: deadlock-trace.txt
>
>
> In one of my jcrinstall tests I got a deadlock when jcrinstall tried to stop the org.apache.sling.commons.scheduler bundle while it was being started by the Felix ComponentActorThread.
> I'll attach the deadlock stack trace - wondering if some of the synchronized sections in QuartzScheduler could be removed, to avoid such issues.
> That might be a jcrinstall/Felix problem as well: stopping a bundle while it is being activated doesn't sound right, but I'm not sure how to prevent this, as the ComponentActorThread actions run asynchronously.

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