HeartSaVioR commented on a change in pull request #22138: [SPARK-25151][SS]
Apply Apache Commons Pool to KafkaDataConsumer
URL: https://github.com/apache/spark/pull/22138#discussion_r319500695
##########
File path:
external/kafka-0-10-sql/src/main/scala/org/apache/spark/sql/kafka010/KafkaDataConsumer.scala
##########
@@ -269,9 +300,12 @@ private[kafka010] case class InternalKafkaConsumer(
// When there is some error thrown, it's better to use a new
consumer to drop all cached
// states in the old consumer. We don't need to worry about the
performance because this
// is not a common path.
- resetConsumer()
- reportDataLoss(failOnDataLoss, s"Cannot fetch offset
$toFetchOffset", e)
- toFetchOffset = getEarliestAvailableOffsetBetween(toFetchOffset,
untilOffset)
+ releaseConsumer()
+ fetchedData.reset()
Review comment:
Yes, as FetchedData is designed to be modified per task. Once you get the
one for that task, you can just modify it, and also reset if necessary.
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