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From "Wangda Tan (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (YARN-2048) List all of the containers of an application from the yarn web
Date Mon, 12 May 2014 23:47:15 GMT

    [ https://issues.apache.org/jira/browse/YARN-2048?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13995824#comment-13995824
] 

Wangda Tan commented on YARN-2048:
----------------------------------

Hi [~coderplay], +1 for this idea, it should be very helpful to debug YARN applications.
I took a look at your patch, some comments,
1) When AM restarted, all containers will be copied to new attempt's container list, which
might lead user confuse why new attempt has all containers from old attempts
2) You might need consider following JIRAs to make app-containers page included all expected
containers, YARN-556,YARN-1885,YARN-1489

> List all of the containers of an application from the yarn web
> --------------------------------------------------------------
>
>                 Key: YARN-2048
>                 URL: https://issues.apache.org/jira/browse/YARN-2048
>             Project: Hadoop YARN
>          Issue Type: Improvement
>          Components: resourcemanager, webapp
>    Affects Versions: 2.3.0, 2.4.0, 2.5.0
>            Reporter: Min Zhou
>         Attachments: YARN-2048-trunk-v1.patch
>
>
> Currently, Yarn haven't provide a way to list all of the containers of an application
from its web. This kind of information is needed by the application user. They can conveniently
know how many containers their applications already acquired as well as which nodes those
containers were launched on.  They also want to view the logs of each container of an application.
> One approach is maintain a container list in RMAppImpl and expose this info to Application
page. I will submit a patch soon



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