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Posted to mapreduce-issues@hadoop.apache.org by "Yang Hao (JIRA)" <ji...@apache.org> on 2015/01/27 10:59:34 UTC

[jira] [Created] (MAPREDUCE-6229) finished MapReduce tasks may be re executed when AM fails on recovery process

Yang Hao created MAPREDUCE-6229:
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             Summary: finished MapReduce tasks may be re executed when AM fails on recovery process
                 Key: MAPREDUCE-6229
                 URL: https://issues.apache.org/jira/browse/MAPREDUCE-6229
             Project: Hadoop Map/Reduce
          Issue Type: Bug
    Affects Versions: 2.6.0
            Reporter: Yang Hao


MapReduce AM failovers, and suddently it is killed during recovery. Next time when the AM failovers again, the progress will lose for that it only parses previous history file. As a result, many tasks will be reexecuted.



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