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From "Xuan Gong (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (YARN-275) Make NodeManagers to NOT blindly heartbeat irrespective of whether previous heartbeat is processed or not.
Date Thu, 03 Jan 2013 21:44:14 GMT

    [ https://issues.apache.org/jira/browse/YARN-275?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13543312#comment-13543312
] 

Xuan Gong commented on YARN-275:
--------------------------------

break the sub-task 275 Make NodeManagers to NOT blindly heartbeat irrespective of whether
previous heartbeat is processed or not to smaller task.
1. Make RM provide heartbeat interval to NM
2. RM changes to handle NM heartbeat during overload.
                
> Make NodeManagers to NOT blindly heartbeat irrespective of whether previous heartbeat
is processed or not.
> ----------------------------------------------------------------------------------------------------------
>
>                 Key: YARN-275
>                 URL: https://issues.apache.org/jira/browse/YARN-275
>             Project: Hadoop YARN
>          Issue Type: Sub-task
>          Components: nodemanager, resourcemanager
>            Reporter: Vinod Kumar Vavilapalli
>            Assignee: Xuan Gong
>         Attachments: YARN-270.1.patch
>
>
> We need NMs to back off. The event handler mechanism is very scalable but not infinitely
so :)

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