hadoop-yarn-issues mailing list archives

Site index · List index
Message view « Date » · « Thread »
Top « Date » · « Thread »
From "Luke Lu (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (YARN-914) Support graceful decommission of nodemanager
Date Mon, 15 Jul 2013 23:12:49 GMT

    [ https://issues.apache.org/jira/browse/YARN-914?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13709144#comment-13709144
] 

Luke Lu commented on YARN-914:
------------------------------

[~atm]: Nice catch! Of course :)
                
> Support graceful decommission of nodemanager
> --------------------------------------------
>
>                 Key: YARN-914
>                 URL: https://issues.apache.org/jira/browse/YARN-914
>             Project: Hadoop YARN
>          Issue Type: Improvement
>    Affects Versions: 2.0.4-alpha
>            Reporter: Luke Lu
>            Assignee: Junping Du
>
> When NMs are decommissioned for non-fault reasons (capacity change etc.), it's desirable
to minimize the impact to running applications.
> Currently if a NM is decommissioned, all running containers on the NM need to be rescheduled
on other NMs. Further more, for finished map tasks, if their map output are not fetched by
the reducers of the job, these map tasks will need to be rerun as well.
> We propose to introduce a mechanism to optionally gracefully decommission a node manager.

--
This message is automatically generated by JIRA.
If you think it was sent incorrectly, please contact your JIRA administrators
For more information on JIRA, see: http://www.atlassian.com/software/jira

Mime
View raw message