Jason Gustafson created KAFKA-8585:
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Summary: Controller should make LeaderAndIsr updates optimistically
Key: KAFKA-8585
URL: https://issues.apache.org/jira/browse/KAFKA-8585
Project: Kafka
Issue Type: Improvement
Reporter: Jason Gustafson
Assignee: Jason Gustafson
Before the controller updates LeaderAndIsr information for a set of partitions,
it always first looks up the current state. We can skip this since the state is
already cached on the controller. In the common case (e.g. controlled
shutdown), the update will succeed. If there was a change which had not been
propagated to the controller, we can retry (this logic exists already).
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