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From "Tom White (JIRA)" <j...@apache.org>
Subject [jira] [Updated] (HADOOP-9183) Potential deadlock in ActiveStandbyElector
Date Tue, 08 Jan 2013 10:36:13 GMT

     [ https://issues.apache.org/jira/browse/HADOOP-9183?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel

Tom White updated HADOOP-9183:

    Attachment: HADOOP-9183.patch

Thanks Todd. Here's a new patch to avoid the race you mention. TestActiveStandbyElectorRealZK
no longer fails with the artificial 1s sleep.
> Potential deadlock in ActiveStandbyElector
> ------------------------------------------
>                 Key: HADOOP-9183
>                 URL: https://issues.apache.org/jira/browse/HADOOP-9183
>             Project: Hadoop Common
>          Issue Type: Bug
>          Components: ha
>    Affects Versions: 2.0.2-alpha
>            Reporter: Tom White
>            Assignee: Tom White
>         Attachments: 2_jcarder_result_1.png, 3_jcarder_result_0.png, HADOOP-9183.patch,
HADOOP-9183.patch, HADOOP-9183.patch
> A jcarder run found a potential deadlock in the locking of ActiveStandbyElector and ActiveStandbyElector.WatcherWithClientRef.
No deadlock has been seen in practice, this is just a theoretical possibility at the moment.

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