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Posted to jira@kafka.apache.org by "Bill Bejeck (Jira)" <ji...@apache.org> on 2020/10/20 16:18:00 UTC

[jira] [Updated] (KAFKA-9145) AbstractCoordinator should respect retry backoff between rebalances

     [ https://issues.apache.org/jira/browse/KAFKA-9145?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Bill Bejeck updated KAFKA-9145:
-------------------------------
    Fix Version/s:     (was: 2.7.0)

> AbstractCoordinator should respect retry backoff between rebalances
> -------------------------------------------------------------------
>
>                 Key: KAFKA-9145
>                 URL: https://issues.apache.org/jira/browse/KAFKA-9145
>             Project: Kafka
>          Issue Type: Improvement
>          Components: consumer, KafkaConnect
>            Reporter: Jason Gustafson
>            Priority: Major
>
> We hit a situation where the connect worker seems to have been requesting group rejoins repeatedly for some reason. In theory the same thing could happen to the consumer if a user repeatedly changes the subscribed topics in a tight loop. Currently AbstractCoordinator would not backoff in these cases because the rebalances may all be completing successfully. It probably makes sense to enforce a minimum time between locally triggered rebalances in order to avoid overloading the broker with repeated group rebalances.



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