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https://issues.apache.org/jira/browse/MAPREDUCE-782?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Brandon Li updated MAPREDUCE-782:
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Attachment: MAPREDUCE-782.branch-1.patch
> Use PureJavaCrc32 in mapreduce spills
> -------------------------------------
>
> Key: MAPREDUCE-782
> URL: https://issues.apache.org/jira/browse/MAPREDUCE-782
> Project: Hadoop Map/Reduce
> Issue Type: Improvement
> Components: performance
> Reporter: Todd Lipcon
> Assignee: Todd Lipcon
> Priority: Minor
> Fix For: 0.21.0
>
> Attachments: MAPREDUCE-782.branch-1.patch, mapreduce-782.txt
>
>
> HADOOP-6148 implemented a Pure Java implementation of CRC32 which performs
> better than the built-in one. This issue is to make use of it in the mapred
> package
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