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SPARK-2701: ConnectionManager throws out of "Could not find reference for received ack message xxx" exception. #1603

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SPARK-2701: ConnectionManager throws out of "Could not find reference for received ack message xxx" exception. #1603

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8 changes: 3 additions & 5 deletions core/src/main/scala/org/apache/spark/network/ConnectionManager.scala
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Original file line number Diff line number Diff line change
Expand Up @@ -652,19 +652,17 @@ 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 => {
throw new Exception("Could not find reference for received ack message " +
message.id)
logError("Could not find reference for received ack message " + message.id)
}
}
}
sentMessageStatus.markDone(Some(message))
} else {
var ackMessage : Option[Message] = None
try {
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