Gakhramanzode commented on PR #16767:
URL: https://github.com/apache/kafka/pull/16767#issuecomment-2472664603
@frankvicky @Hongten @C0urante
Hello,
We've encountered an issue that seems to be related to the changes in this
pull request.
**Context:**
- **Kafka Version:** Upgraded from 3.6.0 to 3.9.0
- **Setup:** Using MirrorMaker 2 to mirror topics between clusters
- **Issue:** After upgrading, we received repeated errors from
`MirrorCheckpointConnector` stating:
```bash
Failed to reconfigure connector’s tasks (MirrorCheckpointConnector),
retrying after backoff.
org.apache.kafka.connect.errors.RetriableException: Timeout while loading
consumer groups.
```
**Attempted Solutions:**
- Increased `admin.timeout.ms` and other timeout settings
- Verified ACLs and authentication
- None of these steps resolved the issue
**Resolution:**
**Downgraded to Kafka 3.8.1:** The error disappeared after downgrading,
suggesting the issue was introduced in 3.9.0.
**Observations:**
- Our clusters are relatively small (about 20 consumer groups), so the
timeout during the initial consumer group load seems unlikely under normal
circumstances.
- It appears that the changes made in this pull request might have
inadvertently caused this behavior.
**Questions:**
1. Is there a recommended workaround or configuration adjustment to prevent
this error in Kafka 3.9.0?
2. Are there plans to address this issue in an upcoming release?
We appreciate any guidance you can provide. Thank you for your efforts in
maintaining and improving Kafka.
Best regards
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