Julian Sedding created SLING-4981:
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Summary: Deadlock involving Scheduler Whiteboard
Key: SLING-4981
URL: https://issues.apache.org/jira/browse/SLING-4981
Project: Sling
Issue Type: Bug
Components: Commons
Affects Versions: Commons Scheduler 2.4.6
Reporter: Julian Sedding
Attachments: scheduler-scr-deadlock.log
I repeatedly observed a deadlock situation in an AEM 6.1 installation
(involving custom code).
The result, amongst others, is a blocked SCR Actor thread.
Hypothesis: I suspect that this can occur in situations where a scheduled Job
(A) has a reference to another SCR component (B) that is lazily initialized
(immediate=false) and itself registered via the whiteboard. If A is disabled
while B is being added by the Scheduler, this triggers deregistration of B as
well.
[~cziegeler] could you please take a look at the attached thread-dump? I would
appreciate your opinion on this.
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