Github user srowen commented on a diff in the pull request: https://github.com/apache/spark/pull/3655#discussion_r21586197 --- Diff: external/kafka/src/main/scala/org/apache/spark/streaming/kafka/ReliableKafkaReceiver.scala --- @@ -201,12 +201,31 @@ class ReliableKafkaReceiver[ topicPartitionOffsetMap.clear() } - /** Store the ready-to-be-stored block and commit the related offsets to zookeeper. */ + /** + * Store the ready-to-be-stored block and commit the related offsets to zookeeper. This method + * will try a fixed number of times to push the block. If the push fails, the receiver is stopped. + */ private def storeBlockAndCommitOffset( blockId: StreamBlockId, arrayBuffer: mutable.ArrayBuffer[_]): Unit = { - store(arrayBuffer.asInstanceOf[mutable.ArrayBuffer[(K, V)]]) - Option(blockOffsetMap.get(blockId)).foreach(commitOffset) - blockOffsetMap.remove(blockId) + var count = 0 + var pushed = false + var exception: Exception = null + while (!pushed && count <= 3) { --- End diff -- General question - is it likely that a store fails, but then immediately succeeds? Just wondering at the likelihood that this does anything.
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