Andrey created KAFKA-12390:
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Summary: error when storing group assignment during SyncGroup
Key: KAFKA-12390
URL: https://issues.apache.org/jira/browse/KAFKA-12390
Project: Kafka
Issue Type: Bug
Components: offset manager
Affects Versions: 2.4.0
Reporter: Andrey
Attachments: negative lag kafka.png
There is a cluster consisting of 3 nodes
Apache Kafka Cluster 2.4.0
messages were observed in the logs of one of the nodes:
Preparing to rebalance group corecft-adapter2 in state PreparingRebalance with
old generation 5043 (__consumer_offsets-22) (reason: error when storing group
assignment during SyncGroup (member:
consumer-5-5f3f994d-7c7c-43d6-8e0b-e011bdc2f9ba)) (kafka.
coordinator.group.GroupCoordinator)
Messages from the topic were read, but no commit occurred. then there was
balancing and the data in the topics was "doubled". There was also a "negative"
lag
there are no error messages in the zookeeper logs
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