fokoenecke opened a new issue, #13236: URL: https://github.com/apache/iceberg/issues/13236
### Query engine _No response_ ### Question Yesterday we updated our kafka connect from using the databricks iceberg sink connector plugin to the one from the iceberg repository. This worked fine, but there was some confusion. After updating, we suddenly had multiple consumer groups, some prefixed with `cg-control` and some with `connect`. The `connect` ones were processed, but the `cg-control`s were not. Both documentations (from [the old](https://github.com/databricks/iceberg-kafka-connect?tab=readme-ov-file#apache-iceberg-sink-connector) and the [new plugin](url)) state, that the default for the groups should be `cg-control`, but after reading some source code, it seems the official iceberg one has `connect` hardcoded as a prefix and the configuration parameter `iceberg.control.group-id-prefix` is never used. I don't know if we missed something, but this caused some confusion. Our solution was waiting for the old groups to be processed and then deleting them. I think it would have been cleaner to "reuse" them. -- 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: issues-unsubscr...@iceberg.apache.org.apache.org For queries about this service, please contact Infrastructure at: us...@infra.apache.org --------------------------------------------------------------------- To unsubscribe, e-mail: issues-unsubscr...@iceberg.apache.org For additional commands, e-mail: issues-h...@iceberg.apache.org