Unable to connect http://127.0.0.1:9200

I can get the update but when i pass the excel data in logstash and after running the below command and its strucking not able to pass the values.

I thought elasticsearch is not running properly could you please guide

[root@ip-10-3-1-152 logstash]# /opt/logstash/bin/logstash -f /etc/logstash/conf.d/logstash.conf
Settings: Default pipeline workers: 2
Pipeline main started

curl -XGET http://10.3.1.99:9200
{
"name" : "Topaz",
"cluster_name" : "poc",
"cluster_uuid" : "SIBEUCg1RT-1k5TSeUd9yQ",
"version" : {
"number" : "2.4.4",
"build_hash" : "fcbb46dfd45562a9cf00c604b30849a6dec6b017",
"build_timestamp" : "2017-01-03T11:33:16Z",
"build_snapshot" : false,
"lucene_version" : "5.5.2"
},
"tagline" : "You Know, for Search"
}