ASF GitHub Bot commented on FLINK-8459:

GitHub user yanghua opened a pull request:


    [FLINK-8459][flip6] Implement cancelWithSavepoint in RestClusterClient

    ## What is the purpose of the change
    This pull request implements cancelWithSavepoint in RestClusterClient for 
    ## Brief change log
      - split the function into two steps: send REST call `triggerSavepoint` 
and send REST call `cancel`
    ## Verifying this change
    This change added tests and can be verified as follows:
      - Added a test to check savepoint path and job's termination state is 
    ## Does this pull request potentially affect one of the following parts:
      - Dependencies (does it add or upgrade a dependency): (no)
      - The public API, i.e., is any changed class annotated with 
`@Public(Evolving)`: (no)
      - The serializers: (no)
      - The runtime per-record code paths (performance sensitive): (no)
      - Anything that affects deployment or recovery: JobManager (and its 
components), Checkpointing, Yarn/Mesos, ZooKeeper: (no)
      - The S3 file system connector: (no)
    ## Documentation
      - Does this pull request introduce a new feature? (no)
      - If yes, how is the feature documented? (not documented)

You can merge this pull request into a Git repository by running:

    $ git pull https://github.com/yanghua/flink FLINK-8459

Alternatively you can review and apply these changes as the patch at:


To close this pull request, make a commit to your master/trunk branch
with (at least) the following in the commit message:

    This closes #5565
commit a4b97d8f305bed09c154fb88ba8e06879532e1ed
Author: vinoyang <vinoyang@...>
Date:   2018-02-23T06:52:11Z

    [FLINK-8459][flip6] Implement cancelWithSavepoint in RestClusterClient


> Implement cancelWithSavepoint in RestClusterClient
> --------------------------------------------------
>                 Key: FLINK-8459
>                 URL: https://issues.apache.org/jira/browse/FLINK-8459
>             Project: Flink
>          Issue Type: Sub-task
>          Components: Client
>    Affects Versions: 1.5.0
>            Reporter: Gary Yao
>            Assignee: vinoyang
>            Priority: Blocker
>              Labels: flip-6
>             Fix For: 1.5.0
> Implement the method
>         {{RestClusterClient#cancelWithSavepoint(JobID jobId, @Nullable String 
> savepointDirectory)}}.
> by either taking a savepoint and cancel the job separately, or by migrating 
> the logic in {{JobCancellationWithSavepointHandlers}}. The former will have 
> different semantics because the checkpoint scheduler is not stopped. Thus it 
> is not guaranteed that there won't be additional checkpoints between the 
> savepoint and the job cancelation.

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