From aa55fd3096442f186aebc5a767d7e271b7224b51 Mon Sep 17 00:00:00 2001
From: Akira Ajisaka <aajisaka@apache.org>
Date: Sun, 1 Mar 2015 01:16:36 -0800
Subject: [PATCH] HDFS-5853. Add
 "hadoop.user.group.metrics.percentiles.intervals" to hdfs-default.xml
 (aajisaka)

---
 hadoop-hdfs-project/hadoop-hdfs/CHANGES.txt           |  3 +++
 .../hadoop-hdfs/src/main/resources/hdfs-default.xml   | 11 +++++++++++
 2 files changed, 14 insertions(+)

diff --git a/hadoop-hdfs-project/hadoop-hdfs/CHANGES.txt b/hadoop-hdfs-project/hadoop-hdfs/CHANGES.txt
index 16fe394270..ce35ea255c 100644
--- a/hadoop-hdfs-project/hadoop-hdfs/CHANGES.txt
+++ b/hadoop-hdfs-project/hadoop-hdfs/CHANGES.txt
@@ -691,6 +691,9 @@ Release 2.7.0 - UNRELEASED
     HDFS-7685. Document dfs.namenode.heartbeat.recheck-interval in
     hdfs-default.xml. (Kai Sasaki via aajisaka)
 
+    HDFS-5853. Add "hadoop.user.group.metrics.percentiles.intervals" to
+    hdfs-default.xml. (aajisaka)
+
   OPTIMIZATIONS
 
     HDFS-7454. Reduce memory footprint for AclEntries in NameNode.
diff --git a/hadoop-hdfs-project/hadoop-hdfs/src/main/resources/hdfs-default.xml b/hadoop-hdfs-project/hadoop-hdfs/src/main/resources/hdfs-default.xml
index 66fe86c56e..7eacfc58c8 100644
--- a/hadoop-hdfs-project/hadoop-hdfs/src/main/resources/hdfs-default.xml
+++ b/hadoop-hdfs-project/hadoop-hdfs/src/main/resources/hdfs-default.xml
@@ -1517,6 +1517,17 @@
   </description>
 </property>
 
+<property>
+  <name>hadoop.user.group.metrics.percentiles.intervals</name>
+  <value></value>
+  <description>
+    A comma-separated list of the granularity in seconds for the metrics
+    which describe the 50/75/90/95/99th percentile latency for group resolution
+    in milliseconds.
+    By default, percentile latency metrics are disabled.
+  </description>
+</property>
+
 <property>
   <name>dfs.encrypt.data.transfer</name>
   <value>false</value>