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Posted to mapreduce-dev@hadoop.apache.org by "Jeffrey Naisbitt (JIRA)" <ji...@apache.org> on 2011/07/25 19:38:09 UTC

[jira] [Created] (MAPREDUCE-2727) MR-279: SleepJob throws divide by zero exception when count = 0

MR-279: SleepJob throws divide by zero exception when count = 0
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                 Key: MAPREDUCE-2727
                 URL: https://issues.apache.org/jira/browse/MAPREDUCE-2727
             Project: Hadoop Map/Reduce
          Issue Type: Bug
          Components: mrv2
    Affects Versions: 0.23.0
            Reporter: Jeffrey Naisbitt
            Assignee: Jeffrey Naisbitt
             Fix For: 0.23.0


When the count is 0 for mappers or reducers, a divide-by-zero exception is thrown.  There are existing checks to error out when count < 0, which obviously doesn't handle the 0 case.  This is causing the MRReliabilityTest to fail.

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