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https://issues.apache.org/jira/browse/FLINK-10527?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16645890#comment-16645890
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ASF GitHub Bot commented on FLINK-10527:
----------------------------------------

yanghua opened a new pull request #6816: [FLINK-10527] Cleanup constant 
isNewMode in YarnTestBase
URL: https://github.com/apache/flink/pull/6816
 
 
   ## What is the purpose of the change
   
   *This pull request cleanups constant isNewMode in YarnTestBase*
   
   ## Brief change log
   
     - *Cleanup constant isNewMode in YarnTestBase*
   
   ## Verifying this change
   
   This change is a trivial rework / code cleanup without any test coverage.
   
   ## Does this pull request potentially affect one of the following parts:
   
     - Dependencies (does it add or upgrade a dependency): (yes / **no**)
     - The public API, i.e., is any changed class annotated with 
`@Public(Evolving)`: (yes / **no**)
     - The serializers: (yes / **no** / don't know)
     - The runtime per-record code paths (performance sensitive): (yes / **no** 
/ don't know)
     - Anything that affects deployment or recovery: JobManager (and its 
components), Checkpointing, Yarn/Mesos, ZooKeeper: (yes / **no** / don't know)
     - The S3 file system connector: (yes / **no** / don't know)
   
   ## Documentation
   
     - Does this pull request introduce a new feature? (yes / **no**)
     - If yes, how is the feature documented? (not applicable / docs / JavaDocs 
/ **not documented**)
   

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> Cleanup constant isNewMode in YarnTestBase
> ------------------------------------------
>
>                 Key: FLINK-10527
>                 URL: https://issues.apache.org/jira/browse/FLINK-10527
>             Project: Flink
>          Issue Type: Bug
>          Components: YARN
>            Reporter: vinoyang
>            Assignee: vinoyang
>            Priority: Major
>              Labels: pull-request-available
>
> This seems to be a residual problem with FLINK-10396. It is set to true in 
> that PR. Currently it has three usage scenarios:
> 1. assert, caused an error
> {code:java}
> assumeTrue("The new mode does not start TMs upfront.", !isNewMode);
> {code}
> 2. if (!isNewMode) the logic in the block would not have invoked, the if 
> block can be removed
> 3. if (isNewMode) always been invoked, the if statement can be removed.



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