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https://issues.apache.org/jira/browse/YARN-4178?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14934934#comment-14934934
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Varun Saxena commented on YARN-4178:
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Ok...Will change it.

> [storage implementation] app id as string in row keys can cause incorrect 
> ordering
> ----------------------------------------------------------------------------------
>
>                 Key: YARN-4178
>                 URL: https://issues.apache.org/jira/browse/YARN-4178
>             Project: Hadoop YARN
>          Issue Type: Sub-task
>          Components: timelineserver
>    Affects Versions: YARN-2928
>            Reporter: Sangjin Lee
>            Assignee: Varun Saxena
>         Attachments: YARN-4178-YARN-2928.01.patch
>
>
> Currently the app id is used in various places as part of row keys. However, 
> currently they are treated as strings. This will cause a problem with 
> ordering when the id portion of the app id rolls over to the next digit.
> For example, "app_1234567890_10000" will be considered *earlier* than 
> "app_1234567890_9999". We should correct this.



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