coderzc commented on code in PR #21745:
URL: https://github.com/apache/pulsar/pull/21745#discussion_r1436889749


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pulsar-broker/src/main/java/org/apache/pulsar/broker/service/persistent/PersistentTopic.java:
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@@ -1220,7 +1221,7 @@ private void 
asyncDeleteCursorWithClearDelayedMessage(String subscriptionName,
                     if (ex != null) {
                         unsubscribeFuture.completeExceptionally(ex);
                     } else {

Review Comment:
   @poorbarcode @codelipenghui 
   
   > Should we delete the cursor after the in-progress compaction task is 
finished?
   
   If there is a compaction task in progress and RawRead is already connected 
to the topic, then the topic will not be deleted.
   
   > it looks like the RawReader will create the topic again if the topic 
auto-creation is enabled on the broker-side. Will it cause a topic deletion 
failure if there is a running compactor
   
   I changed the `createTopicIfDoesNotExist` of RawReader to false and added a 
check if the topic is closing or deleting before triggering compaction. So, the 
case of recreating the topic should not happen.



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