Jason Gustafson created KAFKA-13940:
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Summary: DescribeQuorum returns INVALID_REQUEST if not handled by
leader
Key: KAFKA-13940
URL: https://issues.apache.org/jira/browse/KAFKA-13940
Project: Kafka
Issue Type: Bug
Reporter: Jason Gustafson
In `KafkaRaftClient.handleDescribeQuorum`, we currently return INVALID_REQUEST
if the node is not the current raft leader. This is surprising and doesn't work
with our general approach for retrying forwarded APIs. In
`BrokerToControllerChannelManager`, we only retry after `NOT_CONTROLLER`
errors. It would be more consistent with the other Raft APIs if we returned
NOT_LEADER_OR_FOLLOWER, but that also means we need additional logic in
`BrokerToControllerChannelManager` to handle that error and retry correctly.
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