Elastic Search cluster missing

[gurpreet14]

I managed to start all the servers mentioned in the README. When a request is made over the network, the following error shows up in the browser:

Execution exception 
[IllegalArgumentException: Address must be resolved but wasn't - InetSocketAddress#getAddress() returned null]

In /home/semanticilp/src/main/scala/org/allenai/ari/solvers/textilp/utils/SolverUtils.scala:159
155      .put("client.transport.sniff", false)
156      .put("sniffOnConnectionFault", false)
157      .build()
158    val host = Constants.elasticBeingUsed.hostIp
159    val address = new InetSocketTransportAddress(new InetSocketAddress(host, Constants.elasticBeingUsed.hostPort))
160    println(s"Created Elastic Search Client in cluster ${Constants.elasticBeingUsed.clusterName}")
161    val clientBuilder = TransportClient.builder().settings(settings)
162    clientBuilder.build().addTransportAddress(address)
163  }

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This is the request http://localhost:9000/solveQuestion?question="A decomposer is an organism that"&options="hunts and eats animals//migrates for the winter//breaks down dead plants and animals//uses water and sunlight to make food//"&snippet=""

I believe, this issue is due to the fact that the elastic search cluster on hostIp aristo-es.dev.ai2 is not accessible.

What are the steps to setup this cluster locally? I have installed elastic search locally and would like to know what steps would I need to do next to make this work.

Thanks.