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SPARK-18113 Authorize duplicate requests to commit #79

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Merged
pwoody merged 1 commit into from
Dec 15, 2016
Merged

SPARK-18113 Authorize duplicate requests to commit #79

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5 changes: 5 additions & 0 deletions core/src/main/scala/org/apache/spark/scheduler/OutputCommitCoordinator.scala
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Original file line number Diff line number Diff line change
Expand Up @@ -164,6 +164,11 @@ private[spark] class OutputCommitCoordinator(conf: SparkConf, isDriver: Boolean)
s"partition=$partition")
authorizedCommitters(partition) = attemptNumber
true
case existingCommitter if existingCommitter == attemptNumber =>
logWarning(s"Authorizing duplicate request to commit for " +
s"attemptNumber=$attemptNumber to commit for stage=$stage, partition=$partition; " +
s"existingCommitter = $existingCommitter. This can indicate dropped network traffic.")
true
case existingCommitter =>
logDebug(s"Denying attemptNumber=$attemptNumber to commit for stage=$stage, " +
s"partition=$partition; existingCommitter = $existingCommitter")
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