diff --git a/conf/hadoop-metrics.properties b/conf/hadoop-metrics.properties
index 046a369524d..b348e8b663c 100644
--- a/conf/hadoop-metrics.properties
+++ b/conf/hadoop-metrics.properties
@@ -7,6 +7,8 @@
 # for the moment.
 #
 # See also http://hadoop.apache.org/hbase/docs/current/metrics.html
+# GMETADHOST_IP is the hostname (or) IP address of the server on which the ganglia 
+# meta daemon (gmetad) service is running
 
 # Configuration of the "hbase" context for null
 hbase.class=org.apache.hadoop.metrics.spi.NullContext
@@ -56,3 +58,10 @@ rpc.class=org.apache.hadoop.metrics.spi.NullContext
 # rpc.class=org.apache.hadoop.metrics.ganglia.GangliaContext31
 # rpc.period=10
 # rpc.servers=GMETADHOST_IP:8649
+
+# Configuration of the "rest" context for ganglia
+# Pick one: Ganglia 3.0 (former) or Ganglia 3.1 (latter)
+# rest.class=org.apache.hadoop.metrics.ganglia.GangliaContext
+# rest.class=org.apache.hadoop.metrics.ganglia.GangliaContext31
+# rest.period=10
+# rest.servers=GMETADHOST_IP:8649