[jira] [Commented] (YARN-4087) Set YARN_FAIL_FAST to be false by default

["Vinod Kumar Vavilapalli (JIRA)" <ji...@apache.org>]

    [ https://issues.apache.org/jira/browse/YARN-4087?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14725761#comment-14725761 ] 

Vinod Kumar Vavilapalli commented on YARN-4087:
-----------------------------------------------

Yes, I just checked that YARN-2019 added the config only in 2.8 which is unreleased now. So, we can safely change the default.

bq. Also, may be we should mark this JIRA as incompatible (for behavior)?
The previous behavior was undesired, and nobody in practice should depend on it.

I think there was a bigger thing that got missed at YARN-2019. If we ignore the failure when the config is off, the higher order operations are stuck in a weird state as there are no retries or explicit app-failures, [~jianhe]?

> Set YARN_FAIL_FAST to be false by default
> -----------------------------------------
>
>                 Key: YARN-4087
>                 URL: https://issues.apache.org/jira/browse/YARN-4087
>             Project: Hadoop YARN
>          Issue Type: Bug
>            Reporter: Jian He
>            Assignee: Jian He
>         Attachments: YARN-4087.1.patch, YARN-4087.2.patch
>
>
> Increasingly, I feel setting this property to be false makes more sense especially in production environment, 



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