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From tzulitai <...@git.apache.org>
Subject [GitHub] flink pull request #5335: (master) [FLINK-8419] [kafka] Register metrics for...
Date Mon, 22 Jan 2018 15:14:57 GMT
GitHub user tzulitai opened a pull request:

    https://github.com/apache/flink/pull/5335

    (master) [FLINK-8419] [kafka] Register metrics for dynamically discovered Kafka partitions

    ## What is the purpose of the change
    
    This PR fixes that offset metrics (i.e. current offset, committed offsets) were not registered
for partitions that were dynamically discovered in the `FlinkKafkaConsumerBase`.
    
    This version is targeted for merge to `master`.
    Another version targeted for `release-1.4`, which does not include the new offset metrics
added in #5214, will be separately opened.
    
    ## Brief change log
    
    - 54f3cfd: Preliminary cleanup of the registration of the `KafkaConsumer` user scope metric
group. This commit refactors that for better separation of concerns and lessen code duplication.
    - bf1e4ce: Register offset metrics for new partitions in `addDiscoveredPartitions`
    - 7e90a75: Minor hotfix to inappropriate access modifiers in the `AbstractFetcher`
    
    ## Verifying this change
    
    No new tests were added.
    By manually running a Flink job using the Kafka consumer and repartitioning the Kafka
topic, you should be able to see metrics for the newly added partitions.
    
    ## 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/tzulitai/flink FLINK-8419

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

    https://github.com/apache/flink/pull/5335.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 #5335
    
----
commit 54f3cfd3eb9f925266de37219ab56703a26795d6
Author: Tzu-Li (Gordon) Tai <tzulitai@...>
Date:   2018-01-22T12:36:20Z

    [FLINK-8419] [kafka] Move consumer metric group registration to FlinkKafkaConsumerBase
    
    This commit is a refactor to move the registration of the consumer
    metric group (user scope "KafkaConsumer") to FlinkKafkaConsumerBase.
    Previously, the registration was scattered around in Kafka
    version-specific subclasses.

commit bf1e4ce73279a90d625cda66ee84c194d5ce3e34
Author: Tzu-Li (Gordon) Tai <tzulitai@...>
Date:   2018-01-22T13:14:44Z

    [FLINK-8419] [kafka] Register metrics for dynamically discovered Kafka partitions

commit 7e90a753441b7a4af1dd400942d88fba7d0178df
Author: Tzu-Li (Gordon) Tai <tzulitai@...>
Date:   2018-01-22T13:17:54Z

    [hotfix] [kafka] Fix inapproriate access modifiers in AbstractFetcher

----


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