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https://issues.apache.org/jira/browse/YARN-8540?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16544875#comment-16544875
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Rohith Sharma K S commented on YARN-8540:
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In attached screen shot, we can see that app name is very huge. This could be a
potential problem either for writing or reading.
> Rethink of storing app name as flowname if flow context tags are not provided
> -----------------------------------------------------------------------------
>
> Key: YARN-8540
> URL: https://issues.apache.org/jira/browse/YARN-8540
> Project: Hadoop YARN
> Issue Type: Bug
> Reporter: Rohith Sharma K S
> Priority: Critical
> Attachments: Screen Shot 2018-07-16 at 12.35.58 PM.png
>
>
> Majority of applications submitted to YARN are NOT set flow context
> information in application tags. By default, if tags are not provided then
> app name is considered as flow name.
> In many applications it is seen that app name is very huge. Like Hive Oozie
> Tez sets app name as query name. This could be a potential issue which could
> exceeds supported character length in ATSv2 backend.
> cc:[~vrushalic]
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