[jira] [Commented] (YARN-5137) Make DiskChecker pluggable

["Yufei Gu (JIRA)" <ji...@apache.org>]

    [ https://issues.apache.org/jira/browse/YARN-5137?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15311497#comment-15311497 ] 

Yufei Gu commented on YARN-5137:
--------------------------------

Patch 001 includes: 
- Add an interface: DiskValidator 
- Add two classes to implement the interface: BasicDiskValidator and
ReadWriteValidator, BasicDiskValidator invoke the existing
DiskChecker. And ReadWriteValidator doesn't do anything right now. 
- Add one configuration in YarnConfiguration.
- Modify two callers of DiskChecker from YARN NodeManager side.

> Make DiskChecker pluggable
> --------------------------
>
>                 Key: YARN-5137
>                 URL: https://issues.apache.org/jira/browse/YARN-5137
>             Project: Hadoop YARN
>          Issue Type: Sub-task
>          Components: nodemanager
>            Reporter: Ray Chiang
>            Assignee: Yufei Gu
>              Labels: supportability
>
> It would be nice to have the option for a DiskChecker that has more sophisticated checking capabilities.  In order to do this, we would first need DiskChecker to be pluggable.



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