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https://issues.apache.org/jira/browse/MAPREDUCE-2980?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13120177#comment-13120177
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Thomas Graves commented on MAPREDUCE-2980:
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I am definitely interested in a fix for this. Todd, any update on when the
Jetty 6.1.27 release might take place?
My personal opinion would be to use the custom patch build if 6.1.27 isn't
going to be released for some time.
> Fetch failures and other related issues in Jetty 6.1.26
> -------------------------------------------------------
>
> Key: MAPREDUCE-2980
> URL: https://issues.apache.org/jira/browse/MAPREDUCE-2980
> Project: Hadoop Map/Reduce
> Issue Type: Bug
> Components: tasktracker
> Affects Versions: 0.20.205.0, 0.23.0
> Reporter: Todd Lipcon
> Priority: Critical
>
> Since upgrading Jetty from 6.1.14 to 6.1.26 we've had a ton of HTTP-related
> issues, including:
> - Much higher incidence of fetch failures
> - A few strange file-descriptor related bugs (eg MAPREDUCE-2389)
> - A few unexplained issues where long "fsck"s on the NameNode drop out
> halfway through with a ClosedChannelException
> Stress tests with 10000Map x 10000Reduce sleep jobs reliably reproduce fetch
> failures at a rate of about 1 per million on a 25 node test cluster. These
> problems are all new since the upgrade from 6.1.14.
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