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From "Peter Bacsko (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (YARN-9477) Implement VE discovery using libudev
Date Thu, 02 May 2019 13:42:00 GMT

    [ https://issues.apache.org/jira/browse/YARN-9477?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16831631#comment-16831631
] 

Peter Bacsko commented on YARN-9477:
------------------------------------

[~snemeth] could you please check patch v1?

> Implement VE discovery using libudev
> ------------------------------------
>
>                 Key: YARN-9477
>                 URL: https://issues.apache.org/jira/browse/YARN-9477
>             Project: Hadoop YARN
>          Issue Type: Sub-task
>            Reporter: Peter Bacsko
>            Assignee: Peter Bacsko
>            Priority: Major
>         Attachments: YARN-9477-001.patch, YARN-9477-POC.patch, YARN-9477-POC2.patch,
YARN-9477-POC3.patch
>
>
> Right now we have a Python script which is able to discover VE cards using pyudev: https://pyudev.readthedocs.io/en/latest/
> Java does not officially support libudev. There are some projects on Github (example:
https://github.com/Zubnix/udev-java-bindings) but they're not available as Maven artifacts.
> However it's not that difficult to create a minimal layer around libudev using JNA. We
don't have to wrap every function, we need to call 4-5 methods.



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