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Posted to mapreduce-issues@hadoop.apache.org by "Allen Wittenauer (JIRA)" <ji...@apache.org> on 2014/07/21 18:56:38 UTC

[jira] [Resolved] (MAPREDUCE-392) streaming and pipes should reuse jvm's by default

     [ https://issues.apache.org/jira/browse/MAPREDUCE-392?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Allen Wittenauer resolved MAPREDUCE-392.
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    Resolution: Won't Fix

Sorry Doug, but I'm going to close this as Won't Fix because "Sometime we default to re-usable JVMs, sometimes we don't!" makes the system slightly unpredictable.

> streaming and pipes should reuse jvm's by default
> -------------------------------------------------
>
>                 Key: MAPREDUCE-392
>                 URL: https://issues.apache.org/jira/browse/MAPREDUCE-392
>             Project: Hadoop Map/Reduce
>          Issue Type: Improvement
>          Components: contrib/streaming, pipes
>            Reporter: Doug Cutting
>
> With HADOOP-249, tasks can now reuse JVMs.  Pipes and streaming run little user code in their JVMs and should generally benefit from JVM reuse.  Thus I propose we change the default for these to be JVM reuse.



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