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https://issues.apache.org/jira/browse/JCS-171?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Wiktor N updated JCS-171:
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Attachment: CacheEventQueue.patch
> Multiple CacheEventQueue.QProcessor spawned for the same cache region
> ---------------------------------------------------------------------
>
> Key: JCS-171
> URL: https://issues.apache.org/jira/browse/JCS-171
> Project: Commons JCS
> Issue Type: Bug
> Components: Composite Cache
> Affects Versions: jcs-2.0
> Reporter: Wiktor N
> Attachments: CacheEventQueue.patch
>
>
> I noticed that running on new version of JCS I get multiple
> CacheEventQueue.QProcessor thread. They spawn from time to time.
> I've checked recent changes and changes few things in r1774925 look
> suspicious:
> 1. In previous code we spawned a new thread in synchronized section. This got
> us a guarantee, that there will be no two threads trying to spawn a new
> thread in the same time. Maybe some locking is needed around thread creation?
> 2. QProcessor uses isAlive() method. But this is defined by Thread.isAlive()
> while it should probably check for CacheEventQueue.this.isAlive()
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