Github user sarutak commented on a diff in the pull request: https://github.com/apache/spark/pull/1632#discussion_r16323528 --- Diff: core/src/main/scala/org/apache/spark/network/ConnectionManager.scala --- @@ -652,19 +654,21 @@ private[spark] class ConnectionManager( } } if (bufferMessage.hasAckId()) { - val sentMessageStatus = messageStatuses.synchronized { + messageStatuses.synchronized { messageStatuses.get(bufferMessage.ackId) match { case Some(status) => { messageStatuses -= bufferMessage.ackId - status + status.markDone(Some(message)) } case None => { + if (isAckTimeout) { + logWarning(s"Ack message ${message.id} maybe received after timeout") + } --- End diff -- O.K. I'll remove it.
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