Zhenhao Li updated YARN-7926:
    Affects Version/s: 3.0.0

> Copy and paste errors in log messages
> -------------------------------------
>                 Key: YARN-7926
>                 URL: https://issues.apache.org/jira/browse/YARN-7926
>             Project: Hadoop YARN
>          Issue Type: Bug
>    Affects Versions: 3.0.0
>            Reporter: Zhenhao Li
>            Priority: Minor
>              Labels: easyfix
> We are a group of researchers from Canada and we are studying refactoring in 
> log messages. We found that there are some possible copy and paste errors in 
> the log messages, and we think it may cause some confusion when operators are 
> reading the log messages. 
> The problem is found in the following two methods:
> _org.apache.hadoop.yarn.server.router.webapp.FederationInterceptorREST._*_createNewApplication()_*
> and 
> _org.apache.hadoop.yarn.server.router.clientrm.FederationClientInterceptor._*_getNewApplication()_*
> These are two very similar methods (possibly code clones) in different 
> classes. 
> The log messages in *both methods* are:
>  _LOG.warn("Unable to_ *_create a new ApplicationId_* _in SubCluster " …);__
> _ _LOG.debug(“_*getNewApplication* try # + … );
> Since one method is getting new application and one method is creating new 
> application, we believe that the log messages are incorrectly copied and 
> should be changed. 
> Please let us know if there is anything that we can further provide you with 
> fixing the problem.

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