[GitHub] [pulsar] suiyuzeng opened a new issue #11079: Increase the rate of topic creation

[GitBox <gi...@apache.org>]

suiyuzeng opened a new issue #11079:
URL: https://github.com/apache/pulsar/issues/11079


   **Is your enhancement request related to a problem? Please describe.**
      The count of topic created in 1 second is less than 200, when the topic count of the namespace is about 200,000.
   
   **Describe the solution you'd like**
      Increase the rate of topic creation.
   
   **Describe alternatives you've considered**
      The reason is that the time cost of topic exist checking is too long when the topic count is large.
       protected CompletableFuture<Boolean> checkTopicExistsAsync(TopicName topicName) {
           return pulsar().getNamespaceService().getListOfTopics(topicName.getNamespaceObject(),
                   CommandGetTopicsOfNamespace.Mode.ALL)
                   .thenCompose(topics -> {
                       boolean exists = false;
                       for (String topic : topics) {
                           if (topicName.getPartitionedTopicName().equals(
                                   TopicName.get(topic).getPartitionedTopicName())) {
                               exists = true;
                               break;
                           }
                       }
                       return CompletableFuture.completedFuture(exists);
                   });
       } 
   
      Can we use org.apache.pulsar.broker.namespace.NamespaceService#checkTopicExists  to check if the topic is exits?
   
   **Additional context**
   None
   


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[GitHub] [pulsar] suiyuzeng closed issue #11079: Increase the rate of topic creation

[GitBox <gi...@apache.org>]

suiyuzeng closed issue #11079:
URL: https://github.com/apache/pulsar/issues/11079


   


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