ASF GitHub Bot commented on FLINK-8938:

GitHub user shuai-xu opened a pull request:


    [FLINK-8938] [runtime] not remove job graph during job master failover

    ## What is the purpose of the change
    *This pull request fix a bug that when job master failover, it may delete 
the job graph, so the next job master can not recover the job any more.*
    ## Verifying this change
    *(Please pick either of the following options)*
    This change is tested manually.
    ## 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: (yes)
      - The S3 file system connector: (no)
    ## 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/shuai-xu/flink jira-8938

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 #5693
commit 2fc5ec8795b5a53ce0f653a0e0ad5c1346e826c8
Author: shuai.xus <shuai.xus@...>
Date:   2018-03-14T04:16:55Z

    [FLINK-8938] [runtime] not remove job graph during job master failover


> Not  remove job graph during job master failover
> ------------------------------------------------
>                 Key: FLINK-8938
>                 URL: https://issues.apache.org/jira/browse/FLINK-8938
>             Project: Flink
>          Issue Type: Bug
>          Components: Cluster Management
>    Affects Versions: 1.5.0
>            Reporter: shuai.xu
>            Assignee: shuai.xu
>            Priority: Major
> When job master failover´╝î the new dispatcher should not delete the job graph 
> if failed to start the job manager runner, or else the other dispatchers can 
> not recover it.

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