HBASE-8030 znode path of online region servers is hard coded in rolling_restart.sh (Rajeshbabu)

git-svn-id: https://svn.apache.org/repos/asf/hbase/trunk@1454170 13f79535-47bb-0310-9956-ffa450edef68

bin/rolling-restart.sh

@@ -149,7 +149,10 @@ else
 
   if [ $RR_GRACEFUL -eq 1 ]; then
     # gracefully restart all online regionservers
-    online_regionservers=`$bin/hbase zkcli ls $zparent/rs 2>&1 | tail -1 | sed "s/\[//" | sed "s/\]//"`
+    zkrs=`$bin/hbase org.apache.hadoop.hbase.util.HBaseConfTool zookeeper.znode.rs`
+    if [ "$zkrs" == "null" ]; then zkrs="rs"; fi
+    zkrs="$zparent/$zkrs"
+    online_regionservers=`$bin/hbase zkcli ls $zkrs 2>&1 | tail -1 | sed "s/\[//" | sed "s/\]//"`
     for rs in $online_regionservers
     do
         rs_parts=(${rs//,/ })