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From: laolang113 <git@git.apache.org>
To: issues@flink.incubator.apache.org
Reply-To: issues@flink.incubator.apache.org
Message-ID: <git-pr-5187-flink@git.apache.org>
Subject: [GitHub] flink pull request #5187: Merge pull request #1 from apache/master
Content-Type: text/plain
Date: Wed, 20 Dec 2017 02:36:26 +0000 (UTC)
archived-at: Wed, 20 Dec 2017 02:36:34 -0000

GitHub user laolang113 opened a pull request:

    https://github.com/apache/flink/pull/5187

    Merge pull request #1 from apache/master

    update from apache
    
    
    *Thank you very much for contributing to Apache Flink - we are happy that you want to help us improve Flink. To help the community review your contribution in the best possible way, please go through the checklist below, which will get the contribution into a shape in which it can be best reviewed.*
    
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    ## Contribution Checklist
    
      - Make sure that the pull request corresponds to a [JIRA issue](https://issues.apache.org/jira/projects/FLINK/issues). Exceptions are made for typos in JavaDoc or documentation files, which need no JIRA issue.
      
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      Typo fixes that have no associated JIRA issue should be named following this pattern: `[hotfix] [docs] Fix typo in event time introduction` or `[hotfix] [javadocs] Expand JavaDoc for PuncuatedWatermarkGenerator`.
    
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      - Once all items of the checklist are addressed, remove the above text and this checklist, leaving only the filled out template below.
    
    
    **(The sections below can be removed for hotfixes of typos)**
    
    ## What is the purpose of the change
    
    *(For example: This pull request makes task deployment go through the blob server, rather than through RPC. That way we avoid re-transferring them on each deployment (during recovery).)*
    
    
    ## Brief change log
    
    *(for example:)*
      - *The TaskInfo is stored in the blob store on job creation time as a persistent artifact*
      - *Deployments RPC transmits only the blob storage reference*
      - *TaskManagers retrieve the TaskInfo from the blob cache*
    
    
    ## Verifying this change
    
    *(Please pick either of the following options)*
    
    This change is a trivial rework / code cleanup without any test coverage.
    
    *(or)*
    
    This change is already covered by existing tests, such as *(please describe tests)*.
    
    *(or)*
    
    This change added tests and can be verified as follows:
    
    *(example:)*
      - *Added integration tests for end-to-end deployment with large payloads (100MB)*
      - *Extended integration test for recovery after master (JobManager) failure*
      - *Added test that validates that TaskInfo is transferred only once across recoveries*
      - *Manually verified the change by running a 4 node cluser with 2 JobManagers and 4 TaskManagers, a stateful streaming program, and killing one JobManager and two TaskManagers during the execution, verifying that recovery happens correctly.*
    
    ## 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)


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

    $ git pull https://github.com/laolang113/flink master

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

    https://github.com/apache/flink/pull/5187.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 #5187
    
----
commit 04b294b50f567284375c1eeb92c586f4faf14134
Author: laolang113 <821785050@...>
Date:   2017-12-20T02:32:57Z

    Merge pull request #1 from apache/master
    
    update from apache

----


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