Solution : /etc/hosts file add record 127.0.0.1 el-search Error Log : [2015-09-07 14:37:41,372][ERROR][marvel.agent.exporter ] [Archangel] could not connect to any configured elasticsearch instances: [[0:0:0:0:0:0:0:0]:9200] OR [2015-09-07 14:30:24,693][WARN ][common.network ] failed to resolve local host, fallback to loopback java.net.UnknownHostException: el-search: el-search: unknown error at java.net.InetAddress.getLocalHost(InetAddress.java:1505) at org.elasticsearch.common.network.NetworkUtils.<clinit>(NetworkUtils.java:55) at org.elasticsearch.http.netty.NettyHttpServerTransport.<init>(NettyHttpServerTransport.java:165) at sun.reflect.NativeConstructorAccessorImpl.newInstance0(Native Method) at sun.reflect.NativeConstructorAccessorImpl.newInst...