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Posted to yarn-issues@hadoop.apache.org by "Szilard Nemeth (JIRA)" <ji...@apache.org> on 2018/12/13 15:05:00 UTC

[jira] [Updated] (YARN-9118) Handle issues with parsing user defined GPU devives in GpuDiscoverer

     [ https://issues.apache.org/jira/browse/YARN-9118?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Szilard Nemeth updated YARN-9118:
---------------------------------
    Attachment: YARN-9118.001.patch

> Handle issues with parsing user defined GPU devives in GpuDiscoverer
> --------------------------------------------------------------------
>
>                 Key: YARN-9118
>                 URL: https://issues.apache.org/jira/browse/YARN-9118
>             Project: Hadoop YARN
>          Issue Type: Bug
>            Reporter: Szilard Nemeth
>            Assignee: Szilard Nemeth
>            Priority: Major
>         Attachments: YARN-9118.001.patch
>
>
> getGpusUsableByYarn has the following issues: 
> - Duplicate GPU device definitions are not denied: This seems to be the biggest issue as it could increase the number of devices on the node if the device ID is defined 2 or more times.
> - An empty-string is accepted, it works like the user would not want to use auto-discovery and haven't defined any GPU devices: This will result in an empty device list, but the empty-string check is never explicitly there in the code, so this behavior just coincidental.
> - Number validation does not happen on GPU device IDs (separated by commas)
> Many testcases are added as the coverage was already very low.



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