Jason Gustafson created KAFKA-7831:
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Summary: Consumer SubscriptionState missing synchronization
Key: KAFKA-7831
URL: https://issues.apache.org/jira/browse/KAFKA-7831
Project: Kafka
Issue Type: Bug
Reporter: Jason Gustafson
Assignee: Jason Gustafson
ConsumerCoordinator installs a Metadata.Listener in order to update pattern
subscriptions after metadata changes. The listener is invoked from
NetworkClient.poll, which could happen in the heartbeat thread. Currently,
however, there is no synchronization in SubscriptionState to make this safe.
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