Github user JoshRosen commented on a diff in the pull request:
https://github.com/apache/spark/pull/5139#discussion_r27435543
--- Diff:
core/src/main/scala/org/apache/spark/mapred/SparkHadoopMapRedUtil.scala ---
@@ -65,3 +71,86 @@ trait SparkHadoopMapRedUtil {
}
}
}
+
+object SparkHadoopMapRedUtil extends Logging {
+ /**
+ * Commits a task output. Before committing the task output, we need to
know whether some other
+ * task attempt might be racing to commit the same output partition.
Therefore, coordinate with
+ * the driver in order to determine whether this attempt can commit
(please see SPARK-4879 for
+ * details).
+ *
+ * Commit output coordinator is only contacted when the following two
configurations are both set
--- End diff --
"Commit output coordinator" -> "Output commit coordinator"
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