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Date: Tue, 31 May 2011 17:40:47 +0000 (UTC)
From: "Thomas Graves (JIRA)" <jira@apache.org>
To: mapreduce-issues@hadoop.apache.org
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Subject: [jira] [Updated] (MAPREDUCE-2529) Recognize Jetty bug 1342 and
 handle it
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     [ https://issues.apache.org/jira/browse/MAPREDUCE-2529?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Thomas Graves updated MAPREDUCE-2529:
-------------------------------------

    Attachment: mapred2529-trunk.patch

patch for trunk.

> Recognize Jetty bug 1342 and handle it
> --------------------------------------
>
>                 Key: MAPREDUCE-2529
>                 URL: https://issues.apache.org/jira/browse/MAPREDUCE-2529
>             Project: Hadoop Map/Reduce
>          Issue Type: Bug
>          Components: tasktracker
>    Affects Versions: 0.20.204.0, 0.23.0
>            Reporter: Thomas Graves
>            Assignee: Thomas Graves
>         Attachments: jetty1342-20security.patch, mapred2529-trunk.patch
>
>
> We are seeing many instances of the Jetty-1342 (http://jira.codehaus.org/browse/JETTY-1342). The bug doesn't cause Jetty to stop responding altogether, some fetches go through but a lot of them throw exceptions and eventually fail. The only way we have found to get the TT out of this state is to restart the TT.  This jira is to catch this particular exception (or perhaps a configurable regex) and handle it in an automated way to either blacklist or shutdown the TT after seeing it a configurable number of them.

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