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From GJL <...@git.apache.org>
Subject [GitHub] flink pull request #5194: [FLINK-8233][flip6] Add JobExecutionResultHandler
Date Wed, 20 Dec 2017 13:51:51 GMT
GitHub user GJL opened a pull request:

    https://github.com/apache/flink/pull/5194

    [FLINK-8233][flip6] Add JobExecutionResultHandler

    ## What is the purpose of the change
    
    *Allow retrieval of the JobExecutionResult cached in Dispatcher via HTTP. This will be
needed so that accumulator results can be transmitted to the client.*
    
    This PR is based on #5184.
    
    ## Brief change log
    
      - *Add `JobExecutionResultHandler` to enable retrieval of `JobExecutionResult`.*
      - *Add serializer and deserializer for `JobExecutionResult`*
    
    ## Verifying this change
    
    This change added tests and can be verified as follows:
    
      - *Added unit tests for all new and changed classes.*
      - *Manually ran the WordCount example job and fetched the `JobExecutionResult` with
`curl`*
    
    ## 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)
    
    CC: @tillrohrmann 


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

    $ git pull https://github.com/GJL/flink FLINK-8233-2

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

    https://github.com/apache/flink/pull/5194.patch

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

    This closes #5194
    
----
commit e91f15fcbbe52d6d47cc1ba3d35ae4768fc6309d
Author: gyao <gary@...>
Date:   2017-12-19T17:58:53Z

    [FLINK-8234][flip6] Cache JobExecutionResult in Dispatcher
    
    - Introduce new JobExecutionResult used by JobMaster to forward the information in
      the already existing JobExecutionResult.
    - Always cache a JobExecutionResult. Even in case of job failures. In case of
      job failures, the serialized exception is stored additionally.
    - Introduce new methods to RestfulGateway to allow retrieval of cached
      JobExecutionResults

commit 748745ac3521a20040cbda4056dfd9c53bc24a82
Author: gyao <gary@...>
Date:   2017-12-20T13:44:03Z

    [FLINK-8233][flip6] Add JobExecutionResultHandler
    
        - Allow retrieval of the JobExecutionResult cached in Dispatcher.
        - Implement serializer and deserializer for JobExecutionResult.

commit adf091a2770f42d6f8a0c19ab88cc7a208943a32
Author: gyao <gary@...>
Date:   2017-12-20T13:44:26Z

    [hotfix] Clean up ExecutionGraph
    
    - Remove unnecessary throws clause.
    - Format whitespace.

----


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