Github user kayousterhout commented on a diff in the pull request:
https://github.com/apache/spark/pull/2968#discussion_r20047634
--- Diff: core/src/main/scala/org/apache/spark/deploy/SparkHadoopUtil.scala
---
@@ -151,6 +147,42 @@ class SparkHadoopUtil extends Logging {
}
}
}
+
+ /**
+ * Returns a function that can be called to find Hadoop FileSystem bytes
written. If
+ * getFSBytesWrittenOnThreadCallback is called from thread r at time t,
the returned callback will
+ * return the bytes written on r since t. Reflection is required
because thread-level FileSystem
+ * statistics are only available as of Hadoop 2.5 (see HADOOP-10688).
+ * Returns None if the required method can't be found.
+ */
+ private[spark] def getFSBytesWrittenOnThreadCallback(path: Path, conf:
Configuration)
+ : Option[() => Long] = {
+ try {
+ val threadStats = getFileSystemThreadStatistics(path, conf)
+ val getBytesReadMethod =
getFileSystemThreadStatisticsMethod("getBytesWritten")
--- End diff --
getBytesWrittenMethod? And same with the below naming?
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