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https://issues.apache.org/jira/browse/MAPREDUCE-428?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Allen Wittenauer resolved MAPREDUCE-428.
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Resolution: Duplicate
> Reducers reported completion % is generally incorrect when consuming
> compressed map outputs
> -------------------------------------------------------------------------------------------
>
> Key: MAPREDUCE-428
> URL: https://issues.apache.org/jira/browse/MAPREDUCE-428
> Project: Hadoop Map/Reduce
> Issue Type: Bug
> Reporter: Riccardo Boscolo
> Priority: Minor
>
> When processing compressed map outputs, reducers often report over 100%
> completion (up to 220%). This is regardless of the compression codec and of
> whether native compression is used or not.
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