[GitHub] [pulsar] BewareMyPower commented on a diff in pull request #16043: [improve][broker] Avoid reconnection when a partitioned topic was created concurrently

[GitBox]

BewareMyPower commented on code in PR #16043:
URL: https://github.com/apache/pulsar/pull/16043#discussion_r896341600


##########
pulsar-broker/src/main/java/org/apache/pulsar/broker/admin/impl/PersistentTopicsBase.java:
##########
@@ -4085,9 +4085,21 @@ public static 
CompletableFuture<PartitionedTopicMetadata> unsafeGetPartitionedTo
                 }
                 metadataFuture.complete(metadata);
             }).exceptionally(ex -> {
-            metadataFuture.completeExceptionally(ex.getCause());
-            return null;
-        });
+                    if (ex.getCause() instanceof 
MetadataStoreException.AlreadyExistsException) {
+                        // The partitioned topic might be created concurrently
+                        
pulsar.getBrokerService().fetchPartitionedTopicMetadataAsync(topicName)

Review Comment:
   Good suggestions. I was concerned about the effect on other places before. 
But it should be the right behavior for it, including the admin operations.



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