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From "Beckham007 (JIRA)" <j...@apache.org>
Subject [jira] [Created] (YARN-2169) NMSimulator of sls should catch more Exception
Date Tue, 17 Jun 2014 11:51:01 GMT
Beckham007 created YARN-2169:

             Summary: NMSimulator of sls should catch more Exception
                 Key: YARN-2169
                 URL: https://issues.apache.org/jira/browse/YARN-2169
             Project: Hadoop YARN
          Issue Type: Bug
    Affects Versions: 2.4.0
            Reporter: Beckham007

In the method middleStep() of NMSimulator , sending heart beat may cause InterruptedException
or other Exception if the load is heavily. If not handler these exceptions, the task of NMSimulator
cloud not add to the executor queue again. So the NM will lost.
In my situation, the pool size is 4000, nm size is 2000, and am is 1500. Some NMs will lost.

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