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From "Todd Lipcon (Created) (JIRA)" <j...@apache.org>
Subject [jira] [Created] (MAPREDUCE-3946) If a resource requirement is higher than available on any node, job should fail early
Date Thu, 01 Mar 2012 01:19:58 GMT
If a resource requirement is higher than available on any node, job should fail early
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                 Key: MAPREDUCE-3946
                 URL: https://issues.apache.org/jira/browse/MAPREDUCE-3946
             Project: Hadoop Map/Reduce
          Issue Type: Bug
          Components: resourcemanager
    Affects Versions: 0.24.0, 0.23.2
            Reporter: Todd Lipcon


If you configure the NMs to have 1GB of RAM each, and then try to submit a job which has an
AM resource requirement of 1.5GB, the job will neither run nor fail. Instead, it will slowly
sop of all of the resources in the cluster as "reservations" despite the fact that it will
never be able to schedule something. Instead, it should fail early indicating that the required
memory allocation is infeasible.

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