GitHub user pnowojski opened a pull request:

    [FLINK-8674][runtime] Improve performance of flushAlways in 

    This PR reduces the number of data notifications in case of `flushAlways = 
true`. Instead of notifying all of the channels/subpartitions, notify only the 
one that has just been written to.
    ## Verifying this change
    This change is already covered by existing tests.
    ## 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 f8674

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 #5526
commit 56eb9aa6a3ee6167e4e0cf7d22cbf81ed2d11ccf
Author: Piotr Nowojski <piotr.nowojski@...>
Date:   2018-02-15T13:41:39Z

    [FLINK-8674][runtime] Improve performance of flushAlways in 



Reply via email to