How to setup cassandra zookeeper and rabbitmq cluster

1)
Nodes:
ct1-multinode-cont : 11.120.15.59
ct2-multinode-cont : 11.120.15.60
ct3-multinode-cont : 11.120.15.61

2)
zookeeper cluster:

a)
config:

$vim /etc/zookeeper/conf/zoo.cfg

server.59=11.120.15.59:2888:3888
server.60=11.120.15.60:2888:3888
server.61=11.120.15.61:2888:3888

b)
Check cluster status

b1)
$ /usr/share/zookeeper/bin/zkServer.sh status
JMX enabled by default
Using config: /etc/zookeeper/conf/zoo.cfg
Mode: follower

b2)
$ /usr/share/zookeeper/bin/zkServer.sh status
JMX enabled by default
Using config: /etc/zookeeper/conf/zoo.cfg
Mode: leader
 
b3)
From  11.120.15.61



$ /usr/share/zookeeper/bin/zkServer.sh status
JMX enabled by default
Using config: /etc/zookeeper/conf/zoo.cfg
Mode: follower

c)
docs:
http://myjeeva.com/zookeeper-cluster-setup.html

http://hanishblogger.blogspot.in/2013/11/zookeeper-setup-in-distributed-mode.html

3)
cassandra cluster:

a)
config:

$/etc/cassandra/cassandra.yaml
cluster_name: 'contrail'

seed_provider:
    - class_name: org.apache.cassandra.locator.SimpleSeedProvider
      parameters:
          - seeds: 11.120.15.59,11.120.15.60,11.120.15.61
b)
Check cluster status  
 
# nodetool status
Datacenter: datacenter1
=======================
Status=Up/Down
|/ State=Normal/Leaving/Joining/Moving
--  Address       Load       Tokens  Owns (effective)  Host ID                               Rack
UN  11.120.15.59  75.4 KB    256     100.0%            a07836a2-8c56-4da7-803d-4389f87a4854  rack1
UN  11.120.15.61  256.7 KB   256     100.0%            00c51f6a-2d08-4b27-81f9-b9754b6b0b66  rack1
UN  11.120.15.60  90.74 KB   256     100.0%            d89d9cd8-d154-43d9-97ec-6b827c9a7ced  rack1


c)
docs:
https://docs.datastax.com/en/cassandra/2.0/cassandra/initialize/initializeSingleDS.html

4)
rabbitmq cluster config:

a)
config:
http://blog.hemantthorat.com/setup-rabbitmq-clusters-on-ubuntu/#.Vm-7a5PoEc0

b)
Check cluster status  
 
$ sudo rabbitmqctl cluster_status
Cluster status of node 'rabbit@ct1-multinode-cont' ...
[{nodes,[{disc,['rabbit@ct1-multinode-cont','rabbit@ct2-multinode-cont',
                'rabbit@ct3-multinode-cont']}]},
 {running_nodes,['rabbit@ct2-multinode-cont','rabbit@ct3-multinode-cont',
                 'rabbit@ct1-multinode-cont']},
 {cluster_name,<<"rabbit@localhost">>},
 {partitions,[]}]