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https://issues.apache.org/jira/browse/YARN-561?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13634404#comment-13634404
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Xuan Gong commented on YARN-561:
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1.Remove "_ENV" postfix from the new variables
2.Instead of using putEnvIfNotNull(), set variable value directly by using
put() which These new envs can be enforced by NM
3.Modify the testcase, user provides these new envs as part of launch-context,,
and validate that envs will get their value from NM.
> 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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