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From "Rohith Sharma K S (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (YARN-4862) Handle duplicate completed containers in RMNodeImpl
Date Tue, 21 Jun 2016 11:01:58 GMT

    [ https://issues.apache.org/jira/browse/YARN-4862?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15341561#comment-15341561
] 

Rohith Sharma K S commented on YARN-4862:
-----------------------------------------

I have created YARN-5279 for tracking separately.

> Handle duplicate completed containers in RMNodeImpl
> ---------------------------------------------------
>
>                 Key: YARN-4862
>                 URL: https://issues.apache.org/jira/browse/YARN-4862
>             Project: Hadoop YARN
>          Issue Type: Bug
>          Components: resourcemanager
>            Reporter: Rohith Sharma K S
>            Assignee: Rohith Sharma K S
>         Attachments: 0001-YARN-4862.patch, 0002-YARN-4862.patch
>
>
> As per [comment|https://issues.apache.org/jira/browse/YARN-4852?focusedCommentId=15209689&page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel#comment-15209689]
from [~sharadag], there should be safe guard for duplicated container status in RMNodeImpl
before creating UpdatedContainerInfo. 
> Or else in heavily loaded cluster where event processing is gradually slow, if any duplicated
container are sent to RM(may be bug in NM also), there is significant impact that RMNodImpl
always create UpdatedContainerInfo for duplicated containers. This result in increase in the
heap memory and causes problem like YARN-4852.
> This is an optimization for issue kind YARN-4852



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