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From "Daryn Sharp (Commented) (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (HADOOP-7964) Deadlock in class init.
Date Wed, 11 Jan 2012 17:02:43 GMT

    [ https://issues.apache.org/jira/browse/HADOOP-7964?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13184196#comment-13184196
] 

Daryn Sharp commented on HADOOP-7964:
-------------------------------------

New javadoc warnings are not introduced by this code.  Some sun api warnings shifted from
{{NetUtils}} to {{SecurityUtil}}, but there is no net increase.
                
> Deadlock in class init.
> -----------------------
>
>                 Key: HADOOP-7964
>                 URL: https://issues.apache.org/jira/browse/HADOOP-7964
>             Project: Hadoop Common
>          Issue Type: Bug
>          Components: security, util
>    Affects Versions: 0.20.205.0, 0.24.0, 0.23.1, 1.0.0, 1.1.0
>            Reporter: Kihwal Lee
>            Assignee: Daryn Sharp
>            Priority: Blocker
>         Attachments: HADOOP-7964-2.patch, HADOOP-7964-3.patch, HADOOP-7964.patch
>
>
> After HADOOP-7808, client-side commands hang occasionally. There are cyclic dependencies
in NetUtils and SecurityUtil class initialization. Upon initial look at the stack trace, two
threads deadlock when they hit the either of class init the same time.

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