Indexed data not getting shared in Elaasticsearch Cluster 5.2 - elasticsearch

Question

I installed elasticsearch as RPM service.
I have 5 cluster nodes in which one is tribe node, three are master and data node and final one is data node. I pointed logstash to that data node and it was successfully indexded. When I just checked in other boxes the indexed information is not shared among the clusters.
When I checked the url xxx.xx.xx:9200/. I am getting new field called cluster_uuid whcich I didn't see in my previous version of ELK(2.3.1).. I am suspecting due to that different cluster_uuid.
node1
{
"name" : "node2",
"cluster_name" : "cluster_sft",
"cluster_uuid" : "wwbCT_wJRryT6ko-g_lm7A",
"version" : {
"number" : "5.2.1",
"build_hash" : "db0d481",
"build_date" : "2017-02-09T22:05:32.386Z",
"build_snapshot" : false,
"lucene_version" : "6.4.1"
},
"tagline" : "You Know, for Search"
}
node 2:
{
"name" : "node3",
"cluster_name" : "cluster_sft",
"cluster_uuid" : "qq3YUgZGR9O7nBXTLe8SUg",
"version" : {
"number" : "5.2.1",
"build_hash" : "db0d481",
"build_date" : "2017-02-09T22:05:32.386Z",
"build_snapshot" : false,
"lucene_version" : "6.4.1"
},
"tagline" : "You Know, for Search"
}
Here is my elasticsearch config
cluster.name: cluster_sft
node.name: node1
node.master: true
node.data: true
bootstrap.memory_lock: true
http.host: xx.xx.xxx.xxx
network.host: 127.0.0.1
http.port: 9200
discovery.zen.ping.unicast.hosts: ["xx.xx.xxx.xxx:9200","xx.xx.xxx.xxx;9200","xx.xx.xxx.xxx:9200","xx.xx.xxx.xxx:9200"]
discovery.zen.minimum_master_nodes: 1
I am not sure whether I am missing any attributes or I am going wrong in configuration.
Thanks,
Rajeshkumar