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Posted to mapreduce-issues@hadoop.apache.org by "Jason Lowe (JIRA)" <ji...@apache.org> on 2015/09/08 21:19:45 UTC

[jira] [Created] (MAPREDUCE-6472) MapReduce AM should have java.io.tmpdir=./tmp to be consistent with tasks

Jason Lowe created MAPREDUCE-6472:
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             Summary: MapReduce AM should have java.io.tmpdir=./tmp to be consistent with tasks
                 Key: MAPREDUCE-6472
                 URL: https://issues.apache.org/jira/browse/MAPREDUCE-6472
             Project: Hadoop Map/Reduce
          Issue Type: Bug
          Components: mr-am
    Affects Versions: 2.6.0
            Reporter: Jason Lowe


MapReduceChildJVM.getVMCommand ensures that all tasks have -Djava.io.tmpdir=./tmp set as part of the task command-line, but this is only used for tasks.  The AM itself does not have a corresponding java.io.tmpdir setting.  It should also use the same tmpdir setting to avoid cases where the AM JVM wants to place files in /tmp by default.



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