[GitHub] [pulsar] labuladong commented on issue #18925: [Bug] Cannot auto delete partitioned topic

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labuladong commented on issue #18925:
URL: https://github.com/apache/pulsar/issues/18925#issuecomment-1363492572

   I have investigated the source code, and I reproduced that the partitioned topics cannot be auto-deleted.
   
   It seems we only store partitioned topic metadata in zk instead of broker memory when we create a partitioned topic. So broker `checkGC` method won't get any information on partitioned topics, partitioned topics will not be deleted.
   
   Only if I interact with the partitioned topic, for example `bin/pulsar-admin topics partitioned-stats mytest3`, the partitioned topic information can be loaded in broker memory. After that, the partitioned topics can be deleted.
   
   I think this is a bug, but not sure of the root cause. Is there any big change in partitioned topic creation recently?


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