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https://issues.apache.org/jira/browse/HADOOP-1194?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Arun C Murthy updated HADOOP-1194:
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Status: Patch Available (was: Open)
This patch should provide what Runping is looking for...
> map output should not do block level compression
> ------------------------------------------------
>
> Key: HADOOP-1194
> URL: https://issues.apache.org/jira/browse/HADOOP-1194
> Project: Hadoop
> Issue Type: Improvement
> Components: mapred
> Affects Versions: 0.12.2
> Reporter: Runping Qi
> Assigned To: Arun C Murthy
> Fix For: 0.13.0
>
> Attachments: HADOOP-1194_20070403_1.patch
>
>
> If the user sets to compress the map output, the compression style should be
> record level, not block level, since using block level compression for map
> outputs causes performance degragation significantly.
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