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Posted to common-dev@hadoop.apache.org by "Chris Douglas (JIRA)" <ji...@apache.org> on 2009/04/10 05:53:12 UTC
[jira] Updated: (HADOOP-5652) Reduce does not respect in-memory
segment memory limit when number of on disk segments == io.sort.factor
[ https://issues.apache.org/jira/browse/HADOOP-5652?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
Chris Douglas updated HADOOP-5652:
----------------------------------
Attachment: 5652-0.patch
Easy fix
> Reduce does not respect in-memory segment memory limit when number of on disk segments == io.sort.factor
> --------------------------------------------------------------------------------------------------------
>
> Key: HADOOP-5652
> URL: https://issues.apache.org/jira/browse/HADOOP-5652
> Project: Hadoop Core
> Issue Type: Bug
> Components: mapred
> Affects Versions: 0.20.0
> Reporter: Chris Douglas
> Priority: Minor
> Attachments: 5652-0.patch
>
>
> If the number of on-disk segments is exactly {{io.sort.factor}}, then map output segments may be left in memory for the reduce contrary to the specification in {{mapred.job.reduce.input.buffer.percent}}.
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