michaeljmarshall commented on issue #10857:
URL: https://github.com/apache/pulsar/issues/10857#issuecomment-862073310


   > can you confirm config `brokerDeleteInactiveTopicsEnabled` is set to false?
   
   I believe the behavior described is independent of that setting. Topic level 
metrics are stored in memory, so when a broker restarts, it doesn't have the 
old metrics. Additionally, the broker might not own that topic any more, and if 
the topic doesn't have any producers/consumers trying to connect to it, I don't 
think the topic will be loaded on any broker, which means that it won't be 
reported in the metrics. (This is my current understanding, but it could be 
incorrect. I'd have to look at these metrics again to double check.)


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