[jira] [Commented] (YARN-5748) Backport YARN-5718 to branch-2

["He Xiaoqiao (JIRA)" <ji...@apache.org>]

    [ https://issues.apache.org/jira/browse/YARN-5748?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16528660#comment-16528660 ] 

He Xiaoqiao commented on YARN-5748:
-----------------------------------

[~djp],[~iwasakims] is this issue still going work?

> Backport YARN-5718 to branch-2
> ------------------------------
>
>                 Key: YARN-5748
>                 URL: https://issues.apache.org/jira/browse/YARN-5748
>             Project: Hadoop YARN
>          Issue Type: Bug
>            Reporter: Junping Du
>            Assignee: Masatake Iwasaki
>            Priority: Major
>         Attachments: YARN-5748-branch-2.001.patch, YARN-5748-branch-2.002.patch
>
>
> In YARN-5718, we have identify several unnecessary config to over-write HDFS client behavior in several components of YARN (FSRMStore, TimelineClient, NodeLabelStore, etc.) which cause job failure in some cases (NN HA, etc.) - that's definitely belongs to bug. In YARN-5718, we proposed to remove the config as it shouldn't be supposed to work, which get committed to trunk already as alpha stage has more flexibility for incompatible changes. In branch-2, we want to play a bit more safe and get more discussion. 
> Obviously, there are several options here:
> 1. Don't fix anything, let bug exist
> 2. Fix the bug, but keep the configuration, or mark it deprecated and add some explanation to say this configuration is not supposed to work any more.
> 3. Exactly like YARN-5718, fix the bug and remove the unnecessary configuration.
> This ticket is filed for more discussion.



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