Github user zsxwing commented on a diff in the pull request:
https://github.com/apache/spark/pull/17216#discussion_r106757213
--- Diff:
sql/core/src/main/scala/org/apache/spark/sql/execution/streaming/StreamExecution.scala
---
@@ -256,6 +259,15 @@ class StreamExecution(
updateStatusMessage("Initializing sources")
// force initialization of the logical plan so that the sources can
be created
logicalPlan
+
+ // Isolated spark session to run the batches with.
+ val sparkSessionToRunBatches = sparkSession.cloneSession()
+ // Adaptive execution can change num shuffle partitions, disallow
+
sparkSessionToRunBatches.conf.set(SQLConf.ADAPTIVE_EXECUTION_ENABLED.key,
"false")
+ offsetSeqMetadata = OffsetSeqMetadata(batchWatermarkMs = 0,
batchTimestampMs = 0,
--- End diff --
nit: remove line.
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