[GitHub] [pulsar] leizhiyuan commented on issue #15861: metadata-store thread should not execute onPoliciesUpdate synchronized when PoliciesUpdate

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

leizhiyuan commented on issue #15861:
URL: https://github.com/apache/pulsar/issues/15861#issuecomment-1143051751

   ```
   protected CompletableFuture<Void> receivedNotification(Notification notification) {
           try {
               return CompletableFuture.supplyAsync(() -> {
                   listeners.forEach(listener -> {
                       try {
                           listener.accept(notification);
                       } catch (Throwable t) {
                           log.error("Failed to process metadata store notification", t);
                       }
                   });
   
                   return null;
               }, executor);
           } catch (RejectedExecutionException e) {
               return FutureUtil.failedFuture(e);
           }
       }
   ```
   
   it seems here use a single thread ,  maybe the owner want to keep order?  can we use ordered threadpool to execute receivedNotification? 


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