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From "Beckham007 (JIRA)" <j...@apache.org>
Subject [jira] [Updated] (YARN-2169) NMSimulator of sls should catch more Exception
Date Tue, 17 Jun 2014 11:55:02 GMT

     [ https://issues.apache.org/jira/browse/YARN-2169?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

Beckham007 updated YARN-2169:
-----------------------------

    Attachment: YARN-2169.patch

> 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
>         Attachments: YARN-2169.patch
>
>
> 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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