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https://issues.apache.org/jira/browse/KAFKA-952?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Jun Rao resolved KAFKA-952.
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Resolution: Duplicate
This is already fixed in KAFKA-1578.
> a broker should unregister certain ZK watchers afte it is no longer the
> controller
> ----------------------------------------------------------------------------------
>
> Key: KAFKA-952
> URL: https://issues.apache.org/jira/browse/KAFKA-952
> Project: Kafka
> Issue Type: Bug
> Components: controller
> Affects Versions: 0.8.1
> Reporter: Jun Rao
> Assignee: Geoffrey Anderson
> Labels: newbie
>
> It seems that we only register watchers in the controller logic, but never
> deregister any watchers. Technically, after a broker stops becoming a
> controller, the only watcher that it needs to keep registering is on the
> controller path. The rest of the watchers can be deregistered.
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