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https://issues.apache.org/jira/browse/YARN-5306?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Junping Du reassigned YARN-5306:
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Assignee: Junping Du
> Yarn should detect and fail fast on duplicate resources in container request
> ----------------------------------------------------------------------------
>
> Key: YARN-5306
> URL: https://issues.apache.org/jira/browse/YARN-5306
> Project: Hadoop YARN
> Issue Type: Bug
> Components: yarn
> Reporter: Yesha Vora
> Assignee: Junping Du
> Priority: Critical
>
> In some cases, Yarn gets duplicate copies of resources in resource-list.
> In this case, you end up with a resource list which contains two copies of
> resource JAR, with the timestamps of the two separate uploads —only one of
> which (the later one) is correct. At download time, the NM goes through the
> list and fails the download when it gets to the one with the older timestamp.
> We need some utility class to do a scan & check could be used by the NM at
> download time (so fail with meaningful errors), and the yarn client could
> perhaps do the check before launch.
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