Yufei Gu commented on YARN-6202:

Option 1 sounds good to me. Any thoughts? [~vinodkv]

> Configuration item Dispatcher.DISPATCHER_EXIT_ON_ERROR_KEY is disregarded
> -------------------------------------------------------------------------
>                 Key: YARN-6202
>                 URL: https://issues.apache.org/jira/browse/YARN-6202
>             Project: Hadoop YARN
>          Issue Type: Bug
>          Components: nodemanager, resourcemanager
>    Affects Versions: 2.9.0, 3.0.0-alpha2
>            Reporter: Yufei Gu
>            Assignee: Yufei Gu
> Dispatcher.DISPATCHER_EXIT_ON_ERROR_KEY (yarn.dispatcher.exit-on-error) 
> always be true no matter what value in configuration files. This misleads 
> users. Two solutions: 
> # Remove the configuration item and provide a method to allow 
> {{exitOnDispatchException}}/{{shouldExitOnError}} to be false to enable 
> related unit tests, the assumption is there is no need for false value in a 
> real daemon, this is valid according to MAPREDUCE-3634 which introduce the 
> configuration item.
> # Make it default true instead of false, so that we don't need to hard code 
> it to be true in RM and NM, it is still configurable, and also provide method 
> to enable related unit tests.
> Other than that, the code around it needs to refactor. {{public static 
> final}} for a variable of interface isn't necessary, and YARN related 
> configure item should be in class YarnConfiguration. 

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