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Posted to issues@ignite.apache.org by "Dmitriy Setrakyan (JIRA)" <ji...@apache.org> on 2018/01/30 10:31:01 UTC

[jira] [Assigned] (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:all-tabpanel ]

Dmitriy Setrakyan reassigned IGNITE-7090:
-----------------------------------------

    Assignee: Tim Onyschak

> 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
>            Assignee: 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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