[cdh-user] issues with hadoop disk balancer

I am trying to run hadoop disk balancer on CDH5 cluster, and getting the below message: What it means that? any suggestion 

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15/01/05 08:14:53 INFO balancer.Balancer: parameters = Balancer.Parameters[BalancingPolicy.Node, threshold=10.0, number of nodes to be excluded = 0, number of nodes to be included = 12]

Time Stamp               Iteration#  Bytes Already Moved  Bytes Left To Move  Bytes Being Moved

org.apache.hadoop.ipc.RemoteException(org.apache.hadoop.ipc.RpcNoSuchMethodException): Unknown method getDatanodeStorageReport called on org.apache.hadoop.hdfs.protocol.ClientProtocol protocol.

        at org.apache.hadoop.ipc.ProtobufRpcEngine$Server$ProtoBufRpcInvoker.call(ProtobufRpcEngine.java:575)

        at org.apache.hadoop.ipc.RPC$Server.call(RPC.java:1026)

        at org.apache.hadoop.ipc.Server$Handler$1.run(Server.java:1986)

        at org.apache.hadoop.ipc.Server$Handler$1.run(Server.java:1982)

        at java.security.AccessController.doPrivileged(Native Method)

        at javax.security.auth.Subject.doAs(Subject.java:415)

        at org.apache.hadoop.security.UserGroupInformation.doAs(UserGroupInformation.java:1554)

        at org.apache.hadoop.ipc.Server$Handler.run(Server.java:1980)

.  Exiting ...

Jan 5, 2015 8:14:54 AM   Balancing took 1.139 seconds