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Posted to mapreduce-issues@hadoop.apache.org by "Chris Douglas (JIRA)" <ji...@apache.org> on 2011/06/04 03:00:58 UTC

[jira] [Updated] (MAPREDUCE-2524) Backport trunk heuristics for failing maps when we get fetch failures retrieving map output during shuffle

     [ https://issues.apache.org/jira/browse/MAPREDUCE-2524?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Chris Douglas updated MAPREDUCE-2524:
-------------------------------------

      Resolution: Fixed
    Hadoop Flags: [Reviewed]
          Status: Resolved  (was: Patch Available)

+1

I committed this. Thanks, Tom!

> Backport trunk heuristics for failing maps when we get fetch failures retrieving map output during shuffle
> ----------------------------------------------------------------------------------------------------------
>
>                 Key: MAPREDUCE-2524
>                 URL: https://issues.apache.org/jira/browse/MAPREDUCE-2524
>             Project: Hadoop Map/Reduce
>          Issue Type: Improvement
>          Components: tasktracker
>    Affects Versions: 0.20.204.0
>            Reporter: Thomas Graves
>            Assignee: Thomas Graves
>            Priority: Minor
>             Fix For: 0.20.205.0
>
>         Attachments: MAPREDUCE2524-20security-v2.patch, MAPREDUCE2524-patch-20security.txt, MAPREDUCE2524-patch-20security.txt
>
>
> The heuristics for failing maps when we get map output fetch failures during the shuffle is pretty conservative in 20. Backport the heuristics from trunk which are more aggressive, simpler, and configurable.

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