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From "Junping Du (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (YARN-3212) RMNode State Transition Update with DECOMMISSIONING state
Date Mon, 16 Mar 2015 19:59:38 GMT

    [ https://issues.apache.org/jira/browse/YARN-3212?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14363793#comment-14363793
] 

Junping Du commented on YARN-3212:
----------------------------------

The findbugs warning is not related to this patch and tracked in YARN-3204. So v2 patch is
ready for review.

> RMNode State Transition Update with DECOMMISSIONING state
> ---------------------------------------------------------
>
>                 Key: YARN-3212
>                 URL: https://issues.apache.org/jira/browse/YARN-3212
>             Project: Hadoop YARN
>          Issue Type: Sub-task
>          Components: resourcemanager
>            Reporter: Junping Du
>            Assignee: Junping Du
>         Attachments: RMNodeImpl - new.png, YARN-3212-v1.patch, YARN-3212-v2.patch
>
>
> As proposed in YARN-914, a new state of “DECOMMISSIONING” will be added and can transition
from “running” state triggered by a new event - “decommissioning”. 
> This new state can be transit to state of “decommissioned” when Resource_Update if
no running apps on this NM or NM reconnect after restart. Or it received DECOMMISSIONED event
(after timeout from CLI).
> In addition, it can back to “running” if user decides to cancel previous decommission
by calling recommission on the same node. The reaction to other events is similar to RUNNING
state.



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