heyihong commented on code in PR #53801:
URL: https://github.com/apache/spark/pull/53801#discussion_r2718867558


##########
sql/core/src/main/scala/org/apache/spark/sql/execution/SQLExecution.scala:
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@@ -239,6 +239,8 @@ object SQLExecution extends Logging {
               event.qe = queryExecution
               event.executionFailure = ex
               sc.listenerBus.post(event)
+
+              sparkSession.observationManager.tryComplete(queryExecution)

Review Comment:
   Thanks for explaining. I think waiting for the results in a different thread 
won’t happen in connect mode. Besides, there are trade-offs since it may also 
block other async listeners. It may make sense to introduce a way to do all 
these things in parallel instead of sequentially if latency is important.



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