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From "Jeffrey Naisbitt (JIRA)" <j...@apache.org>
Subject [jira] [Updated] (MAPREDUCE-2727) MR-279: SleepJob throws divide by zero exception when count = 0
Date Mon, 25 Jul 2011 18:34:09 GMT

     [ https://issues.apache.org/jira/browse/MAPREDUCE-2727?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

Jeffrey Naisbitt updated MAPREDUCE-2727:
----------------------------------------

    Attachment: MAPREDUCE-2727.patch

> MR-279: SleepJob throws divide by zero exception when count = 0
> ---------------------------------------------------------------
>
>                 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
>
>         Attachments: MAPREDUCE-2727.patch
>
>
> 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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