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https://issues.apache.org/jira/browse/HADOOP-817?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel#action_12463382
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Devaraj Das commented on HADOOP-817:
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Please tweak the mapred.child.java.opts to have a value -Xmx512m in
hadoop-site.xml (look at hadoop-default.xml for an explanation of this
property).
> Streaming reducers throw OutOfMemory for not so large inputs
> ------------------------------------------------------------
>
> Key: HADOOP-817
> URL: https://issues.apache.org/jira/browse/HADOOP-817
> Project: Hadoop
> Issue Type: Bug
> Components: contrib/streaming
> Reporter: Sanjay Dahiya
> Assigned To: Sanjay Dahiya
> Attachments: NetbeansProfie.png
>
>
> I am seeing OutOfMemoryError for moderate size inputs (~70 text files, 20k
> each ) causing job to fail in streaming. For very small inputs it still
> succeeds. Looking into details.
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