srfrnk opened a new issue, #25978: URL: https://github.com/apache/beam/issues/25978
### What happened? I'm using KafkaIO to consume events from a Kafka topic. I've added "group.id" to the consumer properties. When running the pipeline I can see this value sent to Kafka in the consumer properties. The consumers created by KafkaIO fail to join the consumer group. Looking into the code I can see that no where is the consumer "subscribing" to the topic which is how KafkaConsumer should join a consumer group. It seems the code attempts to circumvent the partition assignment mechanism provided by Kafka to use it's own. By doing that it prevents the user from using consumer groups. Is that by intention? Is there any reason why the decision to avoid using consumer groups has been taken? I would love to see any documentation about that if possible please. ### Issue Priority Priority: 2 (default / most bugs should be filed as P2) ### Issue Components - [ ] Component: Python SDK - [X] Component: Java SDK - [ ] Component: Go SDK - [ ] Component: Typescript SDK - [X] Component: IO connector - [ ] Component: Beam examples - [ ] Component: Beam playground - [ ] Component: Beam katas - [ ] Component: Website - [ ] Component: Spark Runner - [ ] Component: Flink Runner - [ ] Component: Samza Runner - [ ] Component: Twister2 Runner - [ ] Component: Hazelcast Jet Runner - [ ] Component: Google Cloud Dataflow Runner -- This is an automated message from the Apache Git Service. To respond to the message, please log on to GitHub and use the URL above to go to the specific comment. To unsubscribe, e-mail: [email protected] For queries about this service, please contact Infrastructure at: [email protected]
