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From "Kihwal Lee (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (HADOOP-10588) Workaround for jetty6 acceptor startup issue
Date Fri, 19 Aug 2016 16:59:20 GMT

    [ https://issues.apache.org/jira/browse/HADOOP-10588?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15428452#comment-15428452
] 

Kihwal Lee commented on HADOOP-10588:
-------------------------------------

It was almost done in HADOOP-10075 at one point.

> Workaround for jetty6 acceptor startup issue
> --------------------------------------------
>
>                 Key: HADOOP-10588
>                 URL: https://issues.apache.org/jira/browse/HADOOP-10588
>             Project: Hadoop Common
>          Issue Type: Bug
>            Reporter: Kihwal Lee
>            Assignee: Kihwal Lee
>             Fix For: 0.23.11, 2.5.0
>
>         Attachments: selector.patch, selector23.patch
>
>
> When a cluster is restarted, jetty is not functioning for a small percentage of datanodes,
requiring restart of those datanodes.  This is caused by JETTY-1316.
> We've tried overriding isRunning() and retrying on super.isRunning() returning false,
as the reporter of JETTY-1316 mentioned in the description.  It looks like the code was actually
exercised (i.e. the issue was caused by this jetty bug)  and the acceptor was working fine
after retry.
> Since we will probably move to a later version of jetty after branch-3 is cut, we can
put this workaround in branch-2 only.



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