Jun Rao created KAFKA-952:
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Summary: 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: core
Affects Versions: 0.8.1
Reporter: Jun Rao
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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