Rohit Bobade created KAFKA-17445:
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Summary: Kafka streams keeps rebalancing with the following reasons
Key: KAFKA-17445
URL: https://issues.apache.org/jira/browse/KAFKA-17445
Project: Kafka
Issue Type: Bug
Components: streams
Affects Versions: 3.8.0
Reporter: Rohit Bobade
We recently upgraded Kafka streams version to 3.8.0 and are seeing that the
consumer keeps rebalancing and does not process any events
We have explicitly set the config
GROUP_INSTANCE_ID_CONFIG
This is what we see on the broker logs:
[GroupCoordinator 2]: Preparing to rebalance group \{consumer-group-name} in
state PreparingRebalance with old generation 24781 (__consumer_offsets-29)
(reason: Updating metadata for static member {} with instance id {}; client
reason: rebalance failed due to UnjoinedGroupException)
We also tried to remove the GROUP_INSTANCE_ID_CONFIG but then see these logs
and rebalancing and no processing still
sessionTimeoutMs=45000, rebalanceTimeoutMs=1800000,
supportedProtocols=List(stream)) has left group \{groupId} through explicit
`LeaveGroup`; client reason: the consumer unsubscribed from all topics
(kafka.coordinator.group.GroupCoordinator)
other logs show:
during Stable; client reason: need to revoke partitions and re-join)
client reason: triggered followup rebalance scheduled for 0
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