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Posted to mapreduce-issues@hadoop.apache.org by "Evert Lammerts (Commented) (JIRA)" <ji...@apache.org> on 2011/12/30 11:19:31 UTC
[jira] [Commented] (MAPREDUCE-2980) Fetch failures and other
related issues in Jetty 6.1.26
[ https://issues.apache.org/jira/browse/MAPREDUCE-2980?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13177608#comment-13177608 ]
Evert Lammerts commented on MAPREDUCE-2980:
-------------------------------------------
So this is not fixed in 1.0.0 either, as far as I can see...
> 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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