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Posted to yarn-issues@hadoop.apache.org by "Xuan Gong (JIRA)" <ji...@apache.org> on 2014/01/09 00:24:51 UTC

[jira] [Updated] (YARN-1574) When RM transit from Active to Standby, the same eventDispatcher should not be registered more than once

     [ https://issues.apache.org/jira/browse/YARN-1574?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Xuan Gong updated YARN-1574:
----------------------------

    Attachment: YARN-1574.1.patch

> When RM transit from Active to Standby, the same eventDispatcher should not be registered more than once
> --------------------------------------------------------------------------------------------------------
>
>                 Key: YARN-1574
>                 URL: https://issues.apache.org/jira/browse/YARN-1574
>             Project: Hadoop YARN
>          Issue Type: Sub-task
>            Reporter: Xuan Gong
>            Assignee: Xuan Gong
>            Priority: Blocker
>         Attachments: YARN-1574.1.patch
>
>
> Currently, we move rmDispatcher out of ActiveService. But we still register the Event dispatcher, such as schedulerDispatcher, RMAppEventDispatcher when we initiate the ActiveService.
> Almost every time when we transit RM from Active to Standby,  we need to initiate the ActiveService. That means we will register the same event Dispatcher which will cause the same event will be handled several times.



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