Zixuan Liu

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> I think we should reconsider seek. This PR only solves some problems, but it does not solve all seek and reconnect concurrency problems. Do you have any suggestions?

> I have no idea about that. [PIP-194] https://lists.apache.org/thread/97o9t4ltkds5pfq41l9xbbd31t41qm8w discuss how to solve this problem. I think this is a different issue, I just fix the concurrency problems of seeking...

This PR considers the partition topic as a whole, and the user needs to use the base topic instead of the partition topic, I think this change is correct. If...

In our authorization provider, we already check the partition topic and base topic permissions, see https://github.com/apache/pulsar/blob/branch-3.0/pulsar-broker-common/src/main/java/org/apache/pulsar/broker/authorization/PulsarAuthorizationProvider.java#L386-L397, so I think this PR can be merged into the master branch. There may...

The unavailability of the Admin API is not caused by the HTTP server thread, the root cause is that the ZK callback thread is blocked. When an admin API calls...

> > When an admin API calls the ZK metadatastore API, it gets the ZK data by call the `CompletableFuture`, note that we did not use the executor to execute...

Reference: https://github.com/AsyncHttpClient/async-http-client/blob/async-http-client-project-2.12.3/client/src/main/resources/org/asynchttpclient/config/ahc-default.properties