Andrew Schofield created KAFKA-16261:
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Summary: MembershipManagerImpl.updateSubscription fails if already
empty subscription
Key: KAFKA-16261
URL: https://issues.apache.org/jira/browse/KAFKA-16261
Project: Kafka
Issue Type: Bug
Components: clients
Reporter: Andrew Schofield
Assignee: Lianet Magrans
The internal SubscriptionState object keeps track of whether the assignment is
user-assigned, or auto-assigned. If there are no assigned partitions, the
assignment resets to NONE. If you call SubscriptionState.assignFromSubscribed
in this state it fails.
The easiest thing is perhaps to check
SubscriptionState.hasAutoAssignedPartitions() to make sure that
assignFromSubscribed is going to be permitted.
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