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https://issues.apache.org/jira/browse/KAFKA-13030?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Chia-Ping Tsai resolved KAFKA-13030.
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Resolution: Duplicate
close as duplicate
(https://github.com/apache/kafka/pull/10963#issuecomment-873593708)
> FindCoordinators batching causes 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
> Priority: Major
>
> 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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