Ignite web代理中的连接错误

https://console.gridgain.com/ .我试着跑步 用于在上面的链接处与web服务器建立连接,但我收到以下错误消息。我还尝试用机器的IP地址替换localhost,但它仍然不起作用。在运行ignite node时,是否必须启动ignite REST服务器以进行连接?如果是,那么如何通过java代码启用此REST服务器模式?

     ignite-web-agent-1.7.2]$ . ignite-web-agent.sh
 Java HotSpot(TM) 64-Bit Server VM warning: ignoring option MaxPermSize=256m; support was removed in 8.0
 [12:58:13,881][INFO ][main][AgentLauncher] Starting Apache Ignite Web Console Agent...

 Agent configuration:
 User's security tokens        : ****************Fq3q
 URI to Ignite node REST server: http://localhost:8080
 URI to Ignite Console server  : https://console.gridgain.com:3002
 Path to agent property file   : default.properties
 Path to JDBC drivers folder   : /home/rishikesh/ignite-web-agent-1.7.2/jdbc-drivers

 [12:58:14,318][INFO ][EventThread][AgentLauncher] Connecting to: https://console.gridgain.com:3002
 [12:58:34,314][ERROR][EventThread][AgentLauncher] Connection error.
 io.socket.client.SocketIOException: timeout
     at io.socket.client.Manager$1$4$1.run(Manager.java:312)
     at io.socket.thread.EventThread$2.run(EventThread.java:75)
     at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142)
     at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617)
     at java.lang.Thread.run(Thread.java:745)
[12:58:37,304][INFO ][EventThread][AgentLauncher] Connecting to: https://console.gridgain.com:3002
[12:58:53,744][ERROR][EventThread][AgentLauncher] Connection error.
io.socket.engineio.client.EngineIOException: xhr poll error
     at io.socket.engineio.client.Transport.onError(Transport.java:64)
     at io.socket.engineio.client.transports.PollingXHR.access$100(PollingXHR.java:18)
     at io.socket.engineio.client.transports.PollingXHR$6$1.run(PollingXHR.java:126)
     at io.socket.thread.EventThread$2.run(EventThread.java:75)
     at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142)
     at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617)
     at java.lang.Thread.run(Thread.java:745)
Caused by: java.net.UnknownHostException: console.gridgain.com
     at sun.reflect.NativeConstructorAccessorImpl.newInstance0(Native Method)
     at sun.reflect.NativeConstructorAccessorImpl.newInstance(NativeConstructorAccessorImpl.java:62)
     at sun.reflect.DelegatingConstructorAccessorImpl.newInstance(DelegatingConstructorAccessorImpl.java:45)
     at java.lang.reflect.Constructor.newInstance(Constructor.java:422)
     at sun.net.www.protocol.http.HttpURLConnection$10.run(HttpURLConnection.java:1890)
     at sun.net.www.protocol.http.HttpURLConnection$10.run(HttpURLConnection.java:1885)
     at java.security.AccessController.doPrivileged(Native Method)
     at sun.net.www.protocol.http.HttpURLConnection.getChainedException(HttpURLConnection.java:1884)
     at sun.net.www.protocol.http.HttpURLConnection.getInputStream0(HttpURLConnection.java:1457)
     at sun.net.www.protocol.http.HttpURLConnection.getInputStream(HttpURLConnection.java:1441)
     at java.net.HttpURLConnection.getResponseCode(HttpURLConnection.java:480)
     at sun.net.www.protocol.https.HttpsURLConnectionImpl.getResponseCode(HttpsURLConnectionImpl.java:338)
     at io.socket.engineio.client.transports.PollingXHR$Request$1.run(PollingXHR.java:214)
    ... 1 more