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From "Devaraj K (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (YARN-41) The RM should handle the graceful shutdown of the NM.
Date Tue, 19 May 2015 16:00:01 GMT

    [ https://issues.apache.org/jira/browse/YARN-41?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14550668#comment-14550668
] 

Devaraj K commented on YARN-41:
-------------------------------

{code:xml}
Inconsistent synchronization of org.apache.hadoop.yarn.server.resourcemanager.recovery.FileSystemRMStateStore.isHDFS;
locked 66% of time Unsynchronized access at FileSystemRMStateStore.java:66% of time Unsynchronized
access at FileSystemRMStateStore.java:[line 156]
{code}
It is unrelated to the patch, YARN-3677 exists to track this findbugs issue.

> The RM should handle the graceful shutdown of the NM.
> -----------------------------------------------------
>
>                 Key: YARN-41
>                 URL: https://issues.apache.org/jira/browse/YARN-41
>             Project: Hadoop YARN
>          Issue Type: New Feature
>          Components: nodemanager, resourcemanager
>            Reporter: Ravi Teja Ch N V
>            Assignee: Devaraj K
>         Attachments: MAPREDUCE-3494.1.patch, MAPREDUCE-3494.2.patch, MAPREDUCE-3494.patch,
YARN-41-1.patch, YARN-41-2.patch, YARN-41-3.patch, YARN-41-4.patch, YARN-41-5.patch, YARN-41-6.patch,
YARN-41.patch
>
>
> Instead of waiting for the NM expiry, RM should remove and handle the NM, which is shutdown
gracefully.



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