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Posted to yarn-issues@hadoop.apache.org by "Zhijie Shen (JIRA)" <ji...@apache.org> on 2013/02/19 20:15:14 UTC

[jira] [Resolved] (YARN-407) The requested AM memory is not checked against the maximum resource capacity in ResourceMgrDelegate and MRAppMaster

     [ https://issues.apache.org/jira/browse/YARN-407?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Zhijie Shen resolved YARN-407.
------------------------------

    Resolution: Duplicate
    
> The requested AM memory is not checked against the maximum resource capacity in ResourceMgrDelegate and MRAppMaster
> -------------------------------------------------------------------------------------------------------------------
>
>                 Key: YARN-407
>                 URL: https://issues.apache.org/jira/browse/YARN-407
>             Project: Hadoop YARN
>          Issue Type: Bug
>            Reporter: Zhijie Shen
>            Assignee: Zhijie Shen
>
> For the MR jobs, the requested AM memory is at the risk of being larger than the maximum resource capacity. It is because the logic to check the requested AM memory against the maximum resource capacity is missing in ResourceMgrDelegate and MRAppMaster. In contrast, this logic exists in Client and ApplicationMaster of the distributed shell.
> Another potential risk is that the requested AM memory is likely to be rounded up when being normalized, therefore the after-normalization AM memory can be larger than the maximum resource capacity as well.

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