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Posted to issues@hbase.apache.org by "Ted Yu (JIRA)" <ji...@apache.org> on 2011/08/29 18:02:38 UTC

[jira] [Commented] (HBASE-4278) Race condition in Slab.java that occurs due to spinlock unlocking early

    [ https://issues.apache.org/jira/browse/HBASE-4278?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13092935#comment-13092935 ] 

Ted Yu commented on HBASE-4278:
-------------------------------

Integrated to TRUNK.

Thanks for the patch Li.

> Race condition in Slab.java that occurs due to spinlock unlocking early
> -----------------------------------------------------------------------
>
>                 Key: HBASE-4278
>                 URL: https://issues.apache.org/jira/browse/HBASE-4278
>             Project: HBase
>          Issue Type: Sub-task
>            Reporter: Li Pi
>            Assignee: Li Pi
>             Fix For: 0.92.0
>
>         Attachments: 4278.diff, 4278.diff
>
>
> Just a race condition in 4027. Occurs due to a spinlock that happens if the slab allocator is empty. When the slab allocator gets gets a slice of memory returned, if multiple threads are locked, both can be freed at the same time, leading one to throw an exception.

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