HBASE-6437 Avoid admin.balance during master initialize

Submitted by:rajesh
Reviewed by:	Ted


git-svn-id: https://svn.apache.org/repos/asf/hbase/trunk@1377025 13f79535-47bb-0310-9956-ffa450edef68

hbase-server/src/main/java/org/apache/hadoop/hbase/master/HMaster.java

@@ -1229,6 +1229,11 @@ Server {
   }
 
   public boolean balance() {
+    // if master not initialized, don't run balancer.
+    if (!this.initialized) {
+      LOG.debug("Master has not been initialized, don't run balancer.");
+      return false;
+    }
     // If balance not true, don't run balancer.
     if (!this.balanceSwitch) return false;
     // Do this call outside of synchronized block.