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From "Allen Wittenauer (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (YARN-3581) Drop -directlyAccessNodeLabelStore in RMAdminCLI
Date Tue, 05 May 2015 23:36:00 GMT

    [ https://issues.apache.org/jira/browse/YARN-3581?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14529552#comment-14529552
] 

Allen Wittenauer commented on YARN-3581:
----------------------------------------

Removing a command line option is an incompatible change.

> Drop -directlyAccessNodeLabelStore in RMAdminCLI
> ------------------------------------------------
>
>                 Key: YARN-3581
>                 URL: https://issues.apache.org/jira/browse/YARN-3581
>             Project: Hadoop YARN
>          Issue Type: Sub-task
>          Components: api, client, resourcemanager
>            Reporter: Wangda Tan
>            Assignee: Wangda Tan
>
> In 2.6.0, we added an option called "-directlyAccessNodeLabelStore" to make RM can start
with label-configured queue settings. After YARN-2918, we don't need this option any more,
admin can configure queue setting, start RM and configure node label via RMAdminCLI without
any error.
> In addition, this option is very restrictive, first it needs to run on the same node
where RM is running if admin configured to store labels in local disk.
> Second, when admin run the option when RM is running, multiple process write to a same
file can happen, this could make node label store becomes invalid.



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