[GitHub] [pulsar] nicoloboschi opened a new issue, #18802: [Bug] Broker internal error while deleting namespace

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

nicoloboschi opened a new issue, #18802:
URL: https://github.com/apache/pulsar/issues/18802

   ### Search before asking
   
   - [X] I searched in the [issues](https://github.com/apache/pulsar/issues) and found nothing similar.
   
   
   ### Version
   
   2.11.0 
   
   ### Minimal reproduce step
   
   Only with `topicLevelPoliciesEnabled=true`
   
   Test case
   
   ```
   @Test
       public void testDeleteNamespaceWithTopicPolicies() throws Exception {
           stopBroker();
           conf.setSystemTopicEnabled(true);
           conf.setTopicLevelPoliciesEnabled(true);
           conf.setForceDeleteNamespaceAllowed(true);
           setup();
   
           String namespace = tenant + "/test-ns2";
           admin.namespaces().createNamespace(namespace, Sets.newHashSet("test"));
           admin.topics().createNonPartitionedTopic(namespace + "/topictest");
           admin.namespaces().deleteNamespace(namespace, true);
   ```
   
   ```
   022-12-07T15:27:32,863+0100 [pulsar-io-95-5] WARN  org.apache.pulsar.broker.service.ServerCnx - Failed to get Partitioned Metadata [/127.0.0.1:57885] persistent://test-tenant/test-ns2/__change_events: Namespace is deleted
   org.apache.pulsar.broker.web.RestException: Namespace is deleted
   ```
   
   ### What did you expect to see?
   
   The namespace being deleted correctly.
   
   ### What did you see instead?
   
   I get an internal error from the broker.
   
   The issue is that the __change_events topic doesn't exists at the moment of the namespace deletion.
   The namespace deletion procedure is:
   - set namespace deleted=true (disallow new topics being created)
   - delete user topics
   - delete system topics
   
   Right after deleting the first topic, the notification of the topic deleted is written to the __change_events. If the topic doesn't exists it's created. But at this point the topic creation is not allowed.  
   
   I think in case of namespace deletion all the notifications shouldn't be written at all since the topic is being deleted.
   
   
   
   ### Anything else?
   
   _No response_
   
   ### Are you willing to submit a PR?
   
   - [ ] I'm willing to submit a PR!


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[GitHub] [pulsar] nicoloboschi closed issue #18802: [Bug] Broker internal error while deleting namespace

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

nicoloboschi closed issue #18802: [Bug] Broker internal error while deleting namespace
URL: https://github.com/apache/pulsar/issues/18802


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