From aab9737a058c0bdeeb17c173e530b7e571315a56 Mon Sep 17 00:00:00 2001
From: Mingliang Liu <liuml07@apache.org>
Date: Wed, 16 Nov 2016 20:04:57 -0800
Subject: [PATCH] HADOOP-13822. Use GlobalStorageStatistics.INSTANCE.reset() at
 FileSystem#clearStatistics(). Contribute by Brahma Reddy Battula

---
 .../src/main/java/org/apache/hadoop/fs/FileSystem.java     | 7 +------
 1 file changed, 1 insertion(+), 6 deletions(-)

diff --git a/hadoop-common-project/hadoop-common/src/main/java/org/apache/hadoop/fs/FileSystem.java b/hadoop-common-project/hadoop-common/src/main/java/org/apache/hadoop/fs/FileSystem.java
index 529745cafc8..9e984559149 100644
--- a/hadoop-common-project/hadoop-common/src/main/java/org/apache/hadoop/fs/FileSystem.java
+++ b/hadoop-common-project/hadoop-common/src/main/java/org/apache/hadoop/fs/FileSystem.java
@@ -3719,12 +3719,7 @@ public abstract class FileSystem extends Configured implements Closeable {
    * Reset all statistics for all file systems
    */
   public static synchronized void clearStatistics() {
-    final Iterator<StorageStatistics> iterator =
-        GlobalStorageStatistics.INSTANCE.iterator();
-    while (iterator.hasNext()) {
-      final StorageStatistics statistics = iterator.next();
-      statistics.reset();
-    }
+    GlobalStorageStatistics.INSTANCE.reset();
   }
 
   /**