[GitHub] flink pull request #4639: [FLINK-7524] Remove potentially blocking behaviour...

[StefanRRichter]

GitHub user StefanRRichter opened a pull request:

    https://github.com/apache/flink/pull/4639

    [FLINK-7524] Remove potentially blocking behaviour from AbstractClose…

    …ableRegistry
    
    ## What is the purpose of the change
    
    This PR removes potential for blocking behaviour in all CloseableRegistries.
    
    ## Verifying this change
    
    Change is tested in `AbstractCloseableRegistryTest::testNonBlockingClose`.
    
    ## 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)
    
    ## Documentation
    
      - Does this pull request introduce a new feature?  (no)
    


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

    $ git pull https://github.com/StefanRRichter/flink 
improve-closeable-registry

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

    https://github.com/apache/flink/pull/4639.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 #4639
    
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commit a11bc242031134504d80c66e3349772e315fa2cf
Author: Stefan Richter <s.rich...@data-artisans.com>
Date:   2017-09-04T10:30:41Z

    [FLINK-7524] Remove potentially blocking behaviour from 
AbstractCloseableRegistry

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