HQebupt opened a new pull request, #16970: URL: https://github.com/apache/pulsar/pull/16970
### Motivation The topic creating rate is less than 200 QPS when the topic count of the namespace is about 200,000. It is due to the time cost of topic exist checking. All the topics would be checked one by one in `org.apache.pulsar.broker.admin.AdminResource#checkTopicExistsAsync`. As the count of topic grows in a namespace, this method will take a lot. ### Modifications use `org.apache.pulsar.broker.namespace.NamespaceService#checkTopicExists` to check if the topic is exist because this method is more efficient. ### Verifying this change - [x] Make sure that the change passes the CI checks. This change is a trivial rework / code cleanup without any test coverage. ### Does this pull request potentially affect one of the following parts: If `yes` was chosen, please highlight the changes - Dependencies (does it add or upgrade a dependency): (no) - The public API: (no) - The schema: (no) - The default values of configurations: (no) - The wire protocol: (no) - The rest endpoints: (no) - The admin cli options: (no) - Anything that affects deployment: (no) ### Documentation Check the box below and label this PR (if you have committer privilege). Need to update docs? - [x] `doc-not-needed` -- This is an automated message from the Apache Git Service. To respond to the message, please log on to GitHub and use the URL above to go to the specific comment. To unsubscribe, e-mail: [email protected] For queries about this service, please contact Infrastructure at: [email protected]
