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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:
-------------------------
      Resolution: Fixed
    Hadoop Flags: Reviewed
    Release Note: Changes how many tasks PE runs when clients are mapreduce. 
Now tasks == client count. Previous we hardcoded ten tasks per client instance.
          Status: Resolved  (was: Patch Available)

Pushed. Makes sense. This baffled you and Oliver. Thats enough. Thanks for the 
patch [~easyliangjob]

> 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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