Lianet Magrans created KAFKA-18096:
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Summary: Allow new consumer to join group after subscribe to
pattern if no matching topics
Key: KAFKA-18096
URL: https://issues.apache.org/jira/browse/KAFKA-18096
Project: Kafka
Issue Type: Improvement
Components: clients, consumer
Reporter: Lianet Magrans
Assignee: Lianet Magrans
Fix For: 4.0.0
Currently the new consumer won't transition to joining after a call to
subscribe with Pattern if there are no matching topics. This was because the
coordinator does not allow to join without topics (or regex). If that
validation is removed from the broker with KAFKA-18095, we should update the
consumer so that it attempts to join in that case.
This should allow to enable this test for the new consumer
https://github.com/apache/kafka/blob/866d66229da658a5eb1fcb9da28624dd8d2f3e2a/core/src/test/scala/integration/kafka/api/AuthorizerIntegrationTest.scala#L1053
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