Gopal V created YARN-2422:

             Summary: yarn.scheduler.maximum-allocation-mb should not be 
hard-coded in yarn-default.xml
                 Key: YARN-2422
             Project: Hadoop YARN
          Issue Type: Bug
          Components: scheduler
    Affects Versions: 2.6.0
            Reporter: Gopal V
            Priority: Minor
         Attachments: YARN-2422.1.patch

Cluster with 40Gb NM refuses to run containers >8Gb.

It was finally tracked down to yarn-default.xml hard-coding it to 8Gb.

In case of lack of a better override, it should default to - 
${yarn.nodemanager.resource.memory-mb} instead of a hard-coded 8Gb.

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