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From "Thomas Graves (Commented) (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (MAPREDUCE-3851) Allow more aggressive action on detection of the jetty issue
Date Sat, 17 Mar 2012 11:45:39 GMT

    [ https://issues.apache.org/jira/browse/MAPREDUCE-3851?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13231925#comment-13231925
] 

Thomas Graves commented on MAPREDUCE-3851:
------------------------------------------

in the original jetty detection jira -  MAPREDUCE-2529 - Chris had asked to keep it undocumented
see https://issues.apache.org/jira/browse/MAPREDUCE-2529?focusedCommentId=13044180&page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel#comment-13044180

It appears that none of the configuration similar to this are documented so kept with that
theme.
                
> Allow more aggressive action on detection of the jetty issue
> ------------------------------------------------------------
>
>                 Key: MAPREDUCE-3851
>                 URL: https://issues.apache.org/jira/browse/MAPREDUCE-3851
>             Project: Hadoop Map/Reduce
>          Issue Type: Bug
>          Components: tasktracker
>    Affects Versions: 1.0.0
>            Reporter: Kihwal Lee
>            Assignee: Thomas Graves
>             Fix For: 1.1.0, 1.0.1
>
>         Attachments: MAPREDUCE-3851.patch, MAPREDUCE-3851.patch, MAPREDUCE-3851.patch,
MAPREDUCE-3851.patch
>
>
> MAPREDUCE-2529 added the useful failure detection mechanism. In this jira, I propose
we add a periodic check inside TT and configurable action to self-destruct. Blacklisting helps
but is not enough. Hung jetty still accepts connection and it takes very long time for clients
to fail out. Short jobs are delayed for hours because of this. This feature will be a nice
companion to MAPREDUCE-3184.

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