GitHub user tzulitai opened a pull request: https://github.com/apache/flink/pull/5336
(release-1.4) [FLINK-8419] [kafka] Register metrics for dynamically discovered Kafka partitions ## What is the purpose of the change Different version of #5335, which is targeted for `release-1.4`. This version does not include the new offset metrics added in #5214 for the new partitions (those new metrics are only added in `master`). ## Brief change log - db39ec2: 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. - 1acfc15: Register offset metrics for new partitions in `addDiscoveredPartitions` ## 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-8419-1.4 Alternatively you can review and apply these changes as the patch at: https://github.com/apache/flink/pull/5336.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 #5336 ---- commit db39ec2ed6f6b9cf46bc851125b859501d9a9df0 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 1acfc1526e56abd5e5cb4f5a32641afbf2282905 Author: Tzu-Li (Gordon) Tai <tzulitai@...> Date: 2018-01-22T13:14:44Z [FLINK-8419] [kafka] Register metrics for dynamically discovered Kafka partitions ---- ---