Github user cloud-fan commented on a diff in the pull request:
https://github.com/apache/spark/pull/22547#discussion_r226355931
--- Diff:
sql/core/src/main/scala/org/apache/spark/sql/execution/streaming/continuous/ContinuousExecution.scala
---
@@ -90,6 +140,8 @@ class ContinuousExecution(
do {
runContinuous(sparkSessionForStream)
} while (state.updateAndGet(stateUpdate) == ACTIVE)
+
+ stopSources()
--- End diff --
with the new abstraction, we should only stop sources when the stream query
ends, instead of each reconfiguration.
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