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https://issues.apache.org/jira/browse/HBASE-5401?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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stack updated HBASE-5401:
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Hadoop Flags: Incompatible change,Reviewed (was: Reviewed)
Marked it incompatible change.
> PerformanceEvaluation generates 10x the number of expected mappers
> ------------------------------------------------------------------
>
> Key: HBASE-5401
> URL: https://issues.apache.org/jira/browse/HBASE-5401
> Project: HBase
> Issue Type: Bug
> Components: test
> Affects Versions: 2.0.0
> Reporter: Oliver Meyn
> Assignee: Yi Liang
> Fix For: 2.0.0
>
> Attachments: HBASE-5401-V1.patch
>
>
> With a command line like 'hbase org.apache.hadoop.hbase.PerformanceEvaluation
> randomWrite 10' there are 100 mappers spawned, rather than the expected 10.
> The culprit appears to be the outer loop in writeInputFile which sets up 10
> splits for every "asked-for client". I think the fix is just to remove that
> outer loop.
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