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Posted to issues@ignite.apache.org by "Vladisav Jelisavcic (JIRA)" <ji...@apache.org> on 2018/01/20 14:09:00 UTC
[jira] [Commented] (IGNITE-7090) Semaphore Stuck when no acquirers
to assign permit
[ https://issues.apache.org/jira/browse/IGNITE-7090?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16333188#comment-16333188 ]
Vladisav Jelisavcic commented on IGNITE-7090:
---------------------------------------------
Hi Tim, thanks for the contribution! I have reviewed the pull request and left you a few minor comments there
> Semaphore Stuck when no acquirers to assign permit
> --------------------------------------------------
>
> Key: IGNITE-7090
> URL: https://issues.apache.org/jira/browse/IGNITE-7090
> Project: Ignite
> Issue Type: Bug
> Components: cache, data structures
> Affects Versions: 2.1, 2.4
> Reporter: Tim Onyschak
> Priority: Major
> Fix For: 2.5
>
> Attachments: SemaphoreFailoverNoWaitingAcquirerTest.java
>
>
> If no acquirers are available to take permit of semaphore, the permit never gets release and any further acquirerers will wait forever.
> On node shut down DataStructuresProcessor.dsMap gets cleared out prior to event listener being able to execute onNodeRemoved, hence owner is never cleared out if it was unable to pass to a different acquirer.
>
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