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https://issues.apache.org/jira/browse/YARN-873?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13712994#comment-13712994
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Hitesh Shah commented on YARN-873:
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[~xgong] When you say different errors, are you implying different error
messages or different exit codes? For anyone building a script-based tool on
this api, the latter would be preferred.
> 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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