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Posted to mapreduce-issues@hadoop.apache.org by "Zhijie Shen (JIRA)" <ji...@apache.org> on 2013/05/08 23:13:16 UTC

[jira] [Created] (MAPREDUCE-5225) SplitSampler in mapreduce.lib should use a SPLIT_STEP to jump around splits

Zhijie Shen created MAPREDUCE-5225:
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             Summary: SplitSampler in mapreduce.lib should use a SPLIT_STEP to jump around splits
                 Key: MAPREDUCE-5225
                 URL: https://issues.apache.org/jira/browse/MAPREDUCE-5225
             Project: Hadoop Map/Reduce
          Issue Type: Bug
            Reporter: Zhijie Shen
            Assignee: Zhijie Shen


Now, SplitSampler only samples the first maxSplitsSampled splits, caused by MAPREDUCE-1820. However, jumping around all splits is in general preferable than the first N splits.

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