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https://issues.apache.org/jira/browse/YARN-7244?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Kuhu Shukla updated YARN-7244:
------------------------------
Attachment: YARN-7244.007.patch
Updated patch that fixes checkstyles (almost all.. there is one to add getter
in a test that seems excessive to me) and test failure for testMapFileAccess.
My setup did not allow for that test to run and required overhauling. Verified
that it passes now.
> ShuffleHandler is not aware of disks that are added
> ---------------------------------------------------
>
> Key: YARN-7244
> URL: https://issues.apache.org/jira/browse/YARN-7244
> Project: Hadoop YARN
> Issue Type: Bug
> Reporter: Kuhu Shukla
> Assignee: Kuhu Shukla
> Attachments: YARN-7244.001.patch, YARN-7244.002.patch,
> YARN-7244.003.patch, YARN-7244.004.patch, YARN-7244.005.patch,
> YARN-7244.006.patch, YARN-7244.007.patch
>
>
> The ShuffleHandler permanently remembers the list of "good" disks on NM
> startup. If disks later are added to the node then map tasks will start using
> them but the ShuffleHandler will not be aware of them. The end result is that
> the data cannot be shuffled from the node leading to fetch failures and
> re-runs of the map tasks.
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