dillitz commented on code in PR #41829:
URL: https://github.com/apache/spark/pull/41829#discussion_r1251944195
##########
connector/connect/client/jvm/src/main/scala/org/apache/spark/sql/connect/client/SparkConnectClient.scala:
##########
@@ -79,7 +107,11 @@ private[sql] class SparkConnectClient(
.setSessionId(sessionId)
.setClientType(userAgent)
.build()
- stub.executePlan(request)
+ retry {
+ val result = stub.executePlan(request)
+ result.hasNext // moves evaluation of BlockingResponseStream to
SparkConnectClient
Review Comment:
The problem was that `execute` returns a lazily evaluated
`java.util.Iterator[proto.ExecutePlanResponse]` that is then used in
`SparkResult.processResponses` where `responses.hasNext` fails with a
`StatusRuntimeException` outside of the `retry` block. As suggested by
Hyukjin, I now created a custom Iterator that solves this problem.
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