Github user jose-torres commented on a diff in the pull request:
https://github.com/apache/spark/pull/20398#discussion_r163951675
--- Diff:
external/kafka-0-10-sql/src/test/scala/org/apache/spark/sql/kafka010/KafkaSourceSuite.scala
---
@@ -1116,6 +1116,7 @@ class KafkaSourceStressForDontFailOnDataLossSuite
extends StreamTest with Shared
}
query.stop()
+ query.awaitTermination()
--- End diff --
(This most likely explains the observed deadlock situations; the query will
look very much like it's deadlocked if the epoch never advances because not all
partitions are running.)
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