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From indrc <...@git.apache.org>
Subject [GitHub] flink pull request #6302: [FLINK-9061][checkpointing] add entropy to s3 path...
Date Wed, 11 Jul 2018 03:51:49 GMT
GitHub user indrc opened a pull request:

    https://github.com/apache/flink/pull/6302

     [FLINK-9061][checkpointing] add entropy to s3 path for better scalability

    ## What is the purpose of the change
    
    *This pull request adds entropy to the checkpoint path based upon a user defined pattern
in the configuration for better s3 scalability*
    
    
    ## Brief change log
      - *Read the entropy pattern from the config*
      - *In the checkpoint path for FSbackend, substitute the entropy key with a 4 character
random alpha numeric string*
    
    
    ## Verifying this change
    
    This change added tests and can be verified as follows:
    
      - *Added unit tests under FileStateBackendTest to cover different scenarios for the
entropy substitution*
    
    ## Does this pull request potentially affect one of the following parts:
    
      - Dependencies (does it add or upgrade a dependency): (yes )
      - 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? (no)

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

    $ git pull https://github.com/indrc/flink entropy

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

    https://github.com/apache/flink/pull/6302.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 #6302
    
----
commit 96def47c57ae58f9717ab35d41e1a4bf6d152851
Author: Indrajit Roychoudhury <iroychoudhury@...>
Date:   2018-06-26T06:36:49Z

    [FLINK-9061][checkpointing] add entropy to s3 path for better scalability

commit 15c06fa70777e763bac4bde67a48d1d40b5d15ba
Author: Indrajit Roychoudhury <iroychoudhury@...>
Date:   2018-07-11T03:16:45Z

    Add tests, address review comments

----


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