etcd3.0 sparkPI fail

16/07/10 18:38:10 INFO Worker: Retrying connection to master (attempt # 13)
16/07/10 18:38:10 INFO Worker: Connecting to master spark-ms-0.q:7077...
16/07/10 18:38:13 WARN Worker: Failed to connect to master spark-ms-0.q:7077
java.io.IOException: Failed to connect to spark-ms-0.q/10.0.155.142:7077
	at org.apache.spark.network.client.TransportClientFactory.createClient(TransportClientFactory.java:216)
	at org.apache.spark.network.client.TransportClientFactory.createClient(TransportClientFactory.java:167)
	at org.apache.spark.rpc.netty.NettyRpcEnv.createClient(NettyRpcEnv.scala:200)
	at org.apache.spark.rpc.netty.Outbox$$anon$1.call(Outbox.scala:187)
	at org.apache.spark.rpc.netty.Outbox$$anon$1.call(Outbox.scala:183)
	at java.util.concurrent.FutureTask.run(FutureTask.java:266)
	at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142)
	at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617)
	at java.lang.Thread.run(Thread.java:745)
Caused by: java.net.NoRouteToHostException: No route to host: spark-ms-0.q/10.0.155.142:7077
	at sun.nio.ch.SocketChannelImpl.checkConnect(Native Method)
	at sun.nio.ch.SocketChannelImpl.finishConnect(SocketChannelImpl.java:717)
	at io.netty.channel.socket.nio.NioSocketChannel.doFinishConnect(NioSocketChannel.java:224)
	at io.netty.channel.nio.AbstractNioChannel$AbstractNioUnsafe.finishConnect(AbstractNioChannel.java:289)
	at io.netty.channel.nio.NioEventLoop.processSelectedKey(NioEventLoop.java:528)
	at io.netty.channel.nio.NioEventLoop.processSelectedKeysOptimized(NioEventLoop.java:468)
	at io.netty.channel.nio.NioEventLoop.processSelectedKeys(NioEventLoop.java:382)
	at io.netty.channel.nio.NioEventLoop.run(NioEventLoop.java:354)
	at io.netty.util.concurrent.SingleThreadEventExecutor$2.run(SingleThreadEventExecutor.java:111)
	... 1 more
quilt@ip-172-31-14-18:~$ ls
quilt@ip-172-31-14-18:~$ curl http://127.0.0.1:2379/version
{"etcdserver":"2.3.6","etcdcluster":"2.3.0"