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https://issues.apache.org/jira/browse/SLING-11662?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17628434#comment-17628434
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Carsten Ziegeler edited comment on SLING-11662 at 11/3/22 5:28 PM:
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[~stefanegli] I guess we need to change the implementation in Slings
QuartzThreadPool to block if there is no available thread. The thread should
wait until a thread is available again in the pool. Not sure if we have a
trigger for this where we can put a notify. otherwise we would need to
implement a sleep loop, probably with a larger sleep than 1 ms to avoid the
same situation.
Update: we can probably use runInThread to call the notify.
was (Author: cziegeler):
[~stefanegli] I guess we need to change the implementation in Slings
QuartzThreadPool to block if there is no available thread. The thread should
wait until a thread is available again in the pool. Not sure if we have a
trigger for this where we can put a notify. otherwise we would need to
implement a sleep loop, probably with a larger sleep than 1 ms to avoid the
same situation
> Endless loop in QuartzSchedulerThread.run() with maxPoolSize == queueSize
> -------------------------------------------------------------------------
>
> Key: SLING-11662
> URL: https://issues.apache.org/jira/browse/SLING-11662
> Project: Sling
> Issue Type: Bug
> Components: Commons
> Affects Versions: Commons Scheduler 2.7.12
> Reporter: Stefan Egli
> Priority: Major
> Time Spent: 20m
> Remaining Estimate: 0h
>
> When configuring the ThreadPool with maxPoolSize == queueSize and endless
> loop (can) happen(s) in QuartzSchedulerThread.run() which manifests as
> follows:
> {noformat}
> "MyPool_QuartzSchedulerThread" #123 prio=5 os_prio=0 cpu=5123456.78ms
> elapsed=5163.45s tid=0x000012345678ff00 nid=0x1234 runnable
> [0x000087654321ff00]
> java.lang.Thread.State: RUNNABLE
> at
> org.quartz.core.QuartzSchedulerThread.run(QuartzSchedulerThread.java:413)
> {noformat}
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