[GitHub] [spark] HeartSaVioR commented on a change in pull request #19096: [SPARK-21869][SS] A cached Kafka producer should not be closed if any task is using it - adds inuse tracking.

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HeartSaVioR commented on a change in pull request #19096: [SPARK-21869][SS] A cached Kafka producer should not be closed if any task is using it - adds inuse tracking.
URL: https://github.com/apache/spark/pull/19096#discussion_r269421228
 
 

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 File path: external/kafka-0-10-sql/src/main/scala/org/apache/spark/sql/kafka010/KafkaStreamingWrite.scala
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 @@ -103,20 +103,21 @@ class KafkaStreamDataWriter(
     // Send is asynchronous, but we can't commit until all rows are actually in Kafka.
     // This requires flushing and then checking that no callbacks produced errors.
     // We also check for errors before to fail as soon as possible - the check is cheap.
-    checkForErrors()
-    producer.flush()
-    checkForErrors()
+    close()
 
 Review comment:
   If my understanding is correct, this is to prevent data loss where Spark marks the offset as committed but writing to Kafka finally failed asynchronously: I think performance doesn't matter here.

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