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From "Hitesh Shah (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (YARN-561) Nodemanager should set some key information into the environment of every container that it launches.
Date Wed, 17 Apr 2013 21:55:16 GMT

    [ https://issues.apache.org/jira/browse/YARN-561?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13634487#comment-13634487
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Hitesh Shah commented on YARN-561:
----------------------------------

@Xuan, comments:

Any reason why NM_PORT is set by NM but not NM_HTTP_PORT? 
Why does AMLauncher need to set NM* related env vars?
Should MapReduceChildJVM need to continue to set APPLICATION_ATTEMPT_ID_ENV?

                
> Nodemanager should set some key information into the environment of every container that
it launches.
> -----------------------------------------------------------------------------------------------------
>
>                 Key: YARN-561
>                 URL: https://issues.apache.org/jira/browse/YARN-561
>             Project: Hadoop YARN
>          Issue Type: Sub-task
>            Reporter: Hitesh Shah
>            Assignee: Xuan Gong
>              Labels: usability
>         Attachments: YARN-561.1.patch, YARN-561.2.patch, YARN-561.3.patch, YARN-561.4.patch
>
>
> Information such as containerId, nodemanager hostname, nodemanager port is not set in
the environment when any container is launched. 
> For an AM, the RM does all of this for it but for a container launched by an application,
all of the above need to be set by the ApplicationMaster. 
> At the minimum, container id would be a useful piece of information. If the container
wishes to talk to its local NM, the nodemanager related information would also come in handy.


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