ISSUE-6542: Create Producer and Consumer failed

[sijie]

Original Issue: apache#6542

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Describe the bug
The consumer subscribes multi topics, and at the same time create the correspond producers
to produce messages, but I got error , and the errors repeated if I restart the server.

The client received error like this:
"server error: UnknownError: org.apache.pulsar.broker.service.BrokerServiceException$ServiceUnitNotReadyException: Namespace bundle for topic (persistent://mytenants/payCenter/consumeSuccess) not served by this instance. Please redo the lookup. Request is denied: namespace=mytenants/payCenter"

The server side error log:
Namespace bundle for topic (persistent://mytenants/payCenter/consumeSuccess) not served by this instance. Please redo the lookup. Request is denied: namespace=mytenants/payCenter
java.util.concurrent.CompletionException: java.lang.RuntimeException: org.apache.pulsar.broker.service.BrokerServiceException$ServiceUnitNotReadyException: Namespace bundle for topic (persistent://mytenants/payCenter/consumeSuccess) not served by this instance. Please redo the lookup. Request is denied: namespace=mytenants/payCenter

I surppose the error was caused by the concurrent ???

[Meet0861]

I am also facing the same issue. using pulsar v2.10.3-5. is there any update on this??