Chia-Ping Tsai created KAFKA-13030:
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Summary: FindCoordinators batching make slow poll when requesting
older broker
Key: KAFKA-13030
URL: https://issues.apache.org/jira/browse/KAFKA-13030
Project: Kafka
Issue Type: Improvement
Reporter: Chia-Ping Tsai
Assignee: Chia-Ping Tsai
https://github.com/apache/kafka/blob/trunk/clients/src/main/java/org/apache/kafka/clients/consumer/internals/AbstractCoordinator.java#L888
{quote}
if (e instanceof NoBatchedFindCoordinatorsException) {
batchFindCoordinator = false;
clearFindCoordinatorFuture();
lookupCoordinator();
return;
}
{quote}
The current request future is NOT updated so it can't be completed until
timeout. It causes a slow poll when users first poll data from older broker.
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