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Posted to mapreduce-issues@hadoop.apache.org by "Sandy Ryza (JIRA)" <ji...@apache.org> on 2013/05/10 00:45:16 UTC

[jira] [Created] (MAPREDUCE-5236) JobConf should not support disabling memory limits

Sandy Ryza created MAPREDUCE-5236:
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             Summary: JobConf should not support disabling memory limits
                 Key: MAPREDUCE-5236
                 URL: https://issues.apache.org/jira/browse/MAPREDUCE-5236
             Project: Hadoop Map/Reduce
          Issue Type: Bug
    Affects Versions: 2.0.4-alpha
            Reporter: Sandy Ryza
            Assignee: Sandy Ryza


In MR1, a special value of -1 could be given for mapreduce.job.map|reduce.memory.mb to disable memory limits.  In MR2, this makes no sense, as with slots gone, this value is used for requesting resources and scheduling.

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