WweiL commented on code in PR #47895:
URL: https://github.com/apache/spark/pull/47895#discussion_r1797482491
##########
sql/core/src/main/scala/org/apache/spark/sql/execution/streaming/statefulOperators.scala:
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@@ -182,6 +191,27 @@ trait StateStoreWriter extends StatefulOperator with
PythonSQLMetrics { self: Sp
}
}
+ val checkpointInfoAccumulator:
CollectionAccumulator[StateStoreCheckpointInfo] = {
+
SparkContext.getActive.map(_.collectionAccumulator[StateStoreCheckpointInfo]).get
+ }
+
+ def getCheckpointInfo(): Array[StateStoreCheckpointInfo] = {
+ assert(conf.stateStoreCheckpointFormatVersion >= 2)
+ val ret = checkpointInfoAccumulator
+ .value
+ .asScala
+ .toSeq
+ .groupBy(_.partitionId)
+ .map {
+ case (key, values) => key -> values.head
+ }
Review Comment:
> if there was a task retry/speculative execution
Also if there is a fan-out in foreachBatch, i.e. df.write.save() executed
twice
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