From 100cf35f5d29e4dc8a184fb0985dbafed744dc05 Mon Sep 17 00:00:00 2001
From: anoopsamjohn <anoopsamjohn@unknown>
Date: Wed, 24 Apr 2013 15:08:56 +0000
Subject: [PATCH] HBASE-8396 balancerSwitch making two zookeeper calls
 everytime(Rajeshbabu)

git-svn-id: https://svn.apache.org/repos/asf/hbase/trunk@1471460 13f79535-47bb-0310-9956-ffa450edef68
---
 .../apache/hadoop/hbase/zookeeper/LoadBalancerTracker.java    | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/hbase-server/src/main/java/org/apache/hadoop/hbase/zookeeper/LoadBalancerTracker.java b/hbase-server/src/main/java/org/apache/hadoop/hbase/zookeeper/LoadBalancerTracker.java
index 43168a27d82..840fe2be283 100644
--- a/hbase-server/src/main/java/org/apache/hadoop/hbase/zookeeper/LoadBalancerTracker.java
+++ b/hbase-server/src/main/java/org/apache/hadoop/hbase/zookeeper/LoadBalancerTracker.java
@@ -64,9 +64,9 @@ public class LoadBalancerTracker extends ZooKeeperNodeTracker {
   public void setBalancerOn(boolean balancerOn) throws KeeperException {
   byte [] upData = toByteArray(balancerOn);
     try {
-      ZKUtil.createAndWatch(watcher, watcher.balancerZNode, upData);
-    } catch(KeeperException.NodeExistsException nee) {
       ZKUtil.setData(watcher, watcher.balancerZNode, upData);
+    } catch(KeeperException.NoNodeException nne) {
+      ZKUtil.createAndWatch(watcher, watcher.balancerZNode, upData);
     }
     super.nodeDataChanged(watcher.balancerZNode);
   }