Bug 1234912 - Do not authenticate against new storage node when

replication_factor of system_auth keyspace is wrong

Fix "healthy" replication factor definition

(cherry picked from commit e1fa9ed)
Signed-off-by: Libor Zoubek <lzoubek@redhat.com>

modules/enterprise/server/jar/src/main/java/org/rhq/enterprise/server/scheduler/jobs/ReplicationFactorCheckJob.java

@@ -215,12 +215,13 @@ static int getHealthyReplicationFactor(String keyspace, int clusterSize) {
         if ("system_auth".equals(keyspace)) {
             return clusterSize;
         }
-        if (clusterSize == 2) {
-            return 2;
-        }
-        if (clusterSize > 2) {
+        if (clusterSize > 3) {
             return 3;
         }
+        if (clusterSize >= 2) {
+            return 2;
+        }
+
         return 1;
     }