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Posted to mapreduce-issues@hadoop.apache.org by "zhihai xu (JIRA)" <ji...@apache.org> on 2014/11/25 09:26:12 UTC

[jira] [Updated] (MAPREDUCE-6144) DefaultSpeculator always add both MAP and REDUCE Speculative task even MAP_SPECULATIVE or REDUCE_SPECULATIVE is disabled.

     [ https://issues.apache.org/jira/browse/MAPREDUCE-6144?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

zhihai xu updated MAPREDUCE-6144:
---------------------------------
    Resolution: Not a Problem
        Status: Resolved  (was: Patch Available)

> DefaultSpeculator always add both MAP and REDUCE Speculative task even MAP_SPECULATIVE or REDUCE_SPECULATIVE is disabled.
> -------------------------------------------------------------------------------------------------------------------------
>
>                 Key: MAPREDUCE-6144
>                 URL: https://issues.apache.org/jira/browse/MAPREDUCE-6144
>             Project: Hadoop Map/Reduce
>          Issue Type: Bug
>          Components: mrv2
>    Affects Versions: 2.5.1
>            Reporter: zhihai xu
>            Assignee: zhihai xu
>         Attachments: MAPREDUCE-6144.000.patch, MAPREDUCE-6144.001.patch
>
>
> DefaultSpeculator always add both MAP and REDUCE Speculative task even MAP_SPECULATIVE or REDUCE_SPECULATIVE is disabled.
> If both MAP_SPECULATIVE and REDUCE_SPECULATIVE are disabled, 
> DefaultSpeculator won't start.
> The issue will happen if only one of MAP_SPECULATIVE and REDUCE_SPECULATIVE is enabled, both MAP and REDUCE Speculative task  are generate.



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