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https://issues.apache.org/jira/browse/YARN-873?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13714212#comment-13714212
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Xuan Gong commented on YARN-873:
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Currently, exist code = 0: everything is correct.
exist code = -1, user gives the wrong input, such as more parameters or less
parameters
So, we set exist code = -2 for app does not exist in RM ?
And add instructions for future use , exist code will be -3 for invalid
application id (currently, if user gives wrong format of application id, an
exception will be throw) ?
> YARNClient.getApplicationReport(unknownAppId) returns a null report
> -------------------------------------------------------------------
>
> Key: YARN-873
> URL: https://issues.apache.org/jira/browse/YARN-873
> Project: Hadoop YARN
> Issue Type: Sub-task
> Affects Versions: 2.1.0-beta
> Reporter: Bikas Saha
> Assignee: Xuan Gong
> Attachments: YARN-873.1.patch, YARN-873.2.patch, YARN-873.3.patch
>
>
> How can the client find out that app does not exist?
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