编写hadoop程序后编译出现连接问题：
16/06/13 21:24:12 INFO ipc.Client: Retrying connect to server: 192.168.1.250/192.168.1.250:9000. Already tried 0 time(s); maxRetries=45
16/06/13 21:24:33 INFO ipc.Client: Retrying connect to server: 192.168.1.250/192.168.1.250:9000. Already tried 1 time(s); maxRetries=45
16/06/13 21:24:54 INFO ipc.Client: Retrying connect to server: 192.168.1.250/192.168.1.250:9000. Already tried 2 time(s); maxRetries=45
16/06/13 21:25:15 INFO ipc.Client: Retrying connect to server: 192.168.1.250/192.168.1.250:9000. Already tried 3 time(s); maxRetries=45
16/06/13 21:25:36 INFO ipc.Client: Retrying connect to server: 192.168.1.250/192.168.1.250:9000. Already tried 4 time(s); maxRetries=45
16/06/13 21:25:57 INFO ipc.Client: Retrying connect to server: 192.168.1.250/192.168.1.250:9000. Already tried 5 time(s); maxRetries=45
16/06/13 21:26:18 INFO ipc.Client: Retrying connect to server: 192.168.1.250/192.168.1.250:9000. Already tried 6 time(s); maxRetries=45
16/06/13 21:26:39 INFO ipc.Client: Retrying connect to server: 192.168.1.250/192.168.1.250:9000. Already tried 7 time(s); maxRetries=45
16/06/13 21:27:00 INFO ipc.Client: Retrying connect to server: 192.168.1.250/192.168.1.250:9000. Already tried 8 time(s); maxRetries=45
16/06/13 21:27:21 INFO ipc.Client: Retrying connect to server: 192.168.1.250/192.168.1.250:9000. Already tried 9 time(s); maxRetries=45
16/06/13 21:27:42 INFO ipc.Client: Retrying connect to server: 192.168.1.250/192.168.1.250:9000. Already tried 10 time(s); maxRetries=45
16/06/13 21:28:03 INFO ipc.Client: Retrying connect to server: 192.168.1.250/192.168.1.250:9000. Already tried 11 time(s); maxRetries=45
16/06/13 21:28:24 INFO ipc.Client: Retrying connect to server: 192.168.1.250/192.168.1.250:9000. Already tried 12 time(s); maxRetries=45
16/06/13 21:28:45 INFO ipc.Client: Retrying connect to server: 192.168.1.250/192.168.1.250:9000. Already tried 13 time(s); maxRetries=45
16/06/13 21:29:06 INFO ipc.Client: Retrying connect to server: 192.168.1.250/192.168.1.250:9000. Already tried 14 time(s); maxRetries=45
16/06/13 21:29:27 INFO ipc.Client: Retrying connect to server: 192.168.1.250/192.168.1.250:9000. Already tried 15 time(s); maxRetries=45
16/06/13 21:29:48 INFO ipc.Client: Retrying connect to server: 192.168.1.250/192.168.1.250:9000. Already tried 16 time(s); maxRetries=45
16/06/13 21:30:09 INFO ipc.Client: Retrying connect to server: 192.168.1.250/192.168.1.250:9000. Already tried 17 time(s); maxRetries=45
16/06/13 21:30:30 INFO ipc.Client: Retrying connect to server: 192.168.1.250/192.168.1.250:9000. Already tried 18 time(s); maxRetries=45
16/06/13 21:30:51 INFO ipc.Client: Retrying connect to server: 192.168.1.250/192.168.1.250:9000. Already tried 19 time(s); maxRetries=45
16/06/13 21:31:12 INFO ipc.Client: Retrying connect to server: 192.168.1.250/192.168.1.250:9000. Already tried 20 time(s); maxRetries=45
16/06/13 21:31:33 INFO ipc.Client: Retrying connect to server: 192.168.1.250/192.168.1.250:9000. Already tried 21 time(s); maxRetries=45
16/06/13 21:31:54 INFO ipc.Client: Retrying connect to server: 192.168.1.250/192.168.1.250:9000. Already tried 22 time(s); maxRetries=45
16/06/13 21:32:15 INFO ipc.Client: Retrying connect to server: 192.168.1.250/192.168.1.250:9000. Already tried 23 time(s); maxRetries=45
16/06/13 21:32:36 INFO ipc.Client: Retrying connect to server: 192.168.1.250/192.168.1.250:9000. Already tried 24 time(s); maxRetries=45
16/06/13 21:32:57 INFO ipc.Client: Retrying connect to server: 192.168.1.250/192.168.1.250:9000. Already tried 25 time(s); maxRetries=45
16/06/13 21:33:18 INFO ipc.Client: Retrying connect to server: 192.168.1.250/192.168.1.250:9000. Already tried 26 time(s); maxRetries=45
16/06/13 21:33:39 INFO ipc.Client: Retrying connect to server: 192.168.1.250/192.168.1.250:9000. Already tried 27 time(s); maxRetries=45
16/06/13 21:34:00 INFO ipc.Client: Retrying connect to server: 192.168.1.250/192.168.1.250:9000. Already tried 28 time(s); maxRetries=45
16/06/13 21:34:21 INFO ipc.Client: Retrying connect to server: 192.168.1.250/192.168.1.250:9000. Already tried 29 time(s); maxRetries=45
16/06/13 21:34:42 INFO ipc.Client: Retrying connect to server: 192.168.1.250/192.168.1.250:9000. Already tried 30 time(s); maxRetries=45
16/06/13 21:35:03 INFO ipc.Client: Retrying connect to server: 192.168.1.250/192.168.1.250:9000. Already tried 31 time(s); maxRetries=45
16/06/13 21:35:24 INFO ipc.Client: Retrying connect to server: 192.168.1.250/192.168.1.250:9000. Already tried 32 time(s); maxRetries=45
16/06/13 21:35:45 INFO ipc.Client: Retrying connect to server: 192.168.1.250/192.168.1.250:9000. Already tried 33 time(s); maxRetries=45
16/06/13 21:36:06 INFO ipc.Client: Retrying connect to server: 192.168.1.250/192.168.1.250:9000. Already tried 34 time(s); maxRetries=45
16/06/13 21:36:27 INFO ipc.Client: Retrying connect to server: 192.168.1.250/192.168.1.250:9000. Already tried 35 time(s); maxRetries=45
16/06/13 21:36:48 INFO ipc.Client: Retrying connect to server: 192.168.1.250/192.168.1.250:9000. Already tried 36 time(s); maxRetries=45
16/06/13 21:37:09 INFO ipc.Client: Retrying connect to server: 192.168.1.250/192.168.1.250:9000. Already tried 37 time(s); maxRetries=45
16/06/13 21:37:30 INFO ipc.Client: Retrying connect to server: 192.168.1.250/192.168.1.250:9000. Already tried 38 time(s); maxRetries=45
16/06/13 21:37:51 INFO ipc.Client: Retrying connect to server: 192.168.1.250/192.168.1.250:9000. Already tried 39 time(s); maxRetries=45
16/06/13 21:38:12 INFO ipc.Client: Retrying connect to server: 192.168.1.250/192.168.1.250:9000. Already tried 40 time(s); maxRetries=45
16/06/13 21:38:33 INFO ipc.Client: Retrying connect to server: 192.168.1.250/192.168.1.250:9000. Already tried 41 time(s); maxRetries=45
16/06/13 21:38:54 INFO ipc.Client: Retrying connect to server: 192.168.1.250/192.168.1.250:9000. Already tried 42 time(s); maxRetries=45
16/06/13 21:39:15 INFO ipc.Client: Retrying connect to server: 192.168.1.250/192.168.1.250:9000. Already tried 43 time(s); maxRetries=45
16/06/13 21:39:36 INFO ipc.Client: Retrying connect to server: 192.168.1.250/192.168.1.250:9000. Already tried 44 time(s); maxRetries=45
Exception in thread "main" java.net.SocketTimeoutException: Call to 192.168.1.250/192.168.1.250:9000 failed on socket timeout exception: java.net.SocketTimeoutException: 20000 millis timeout while waiting for channel to be ready for connect. ch : java.nio.channels.SocketChannel[connection-pending remote=192.168.1.250/192.168.1.250:9000]
at org.apache.hadoop.ipc.Client.wrapException(Client.java:1140)
at org.apache.hadoop.ipc.Client.call(Client.java:1112)
at org.apache.hadoop.ipc.RPC$Invoker.invoke(RPC.java:230)
at $Proxy1.getProtocolVersion(Unknown Source)
at org.apache.hadoop.ipc.RPC.getProxy(RPC.java:411)
at org.apache.hadoop.hdfs.DFSClient.createRPCNamenode(DFSClient.java:135)
at org.apache.hadoop.hdfs.DFSClient.(DFSClient.java:276)
at org.apache.hadoop.hdfs.DFSClient.(DFSClient.java:241)
at org.apache.hadoop.hdfs.DistributedFileSystem.initialize(DistributedFileSystem.java:100)
at org.apache.hadoop.fs.FileSystem.createFileSystem(FileSystem.java:1411)
at org.apache.hadoop.fs.FileSystem.access$0(FileSystem.java:1403)
at org.apache.hadoop.fs.FileSystem$Cache.get(FileSystem.java:1429)
at org.apache.hadoop.fs.FileSystem.get(FileSystem.java:254)
at hdfs0.App1.main(App1.java:17)
Caused by: java.net.SocketTimeoutException: 20000 millis timeout while waiting for channel to be ready for connect. ch : java.nio.channels.SocketChannel[connection-pending remote=192.168.1.250/192.168.1.250:9000]
at org.apache.hadoop.net.SocketIOWithTimeout.connect(SocketIOWithTimeout.java:213)
at org.apache.hadoop.net.NetUtils.connect(NetUtils.java:511)
at org.apache.hadoop.net.NetUtils.connect(NetUtils.java:481)
at org.apache.hadoop.ipc.Client$Connection.setupConnection(Client.java:453)
at org.apache.hadoop.ipc.Client$Connection.setupIOstreams(Client.java:579)
at org.apache.hadoop.ipc.Client$Connection.access$9(Client.java:566)
at org.apache.hadoop.ipc.Client.getConnection(Client.java:1243)
at org.apache.hadoop.ipc.Client.call(Client.java:1087)
... 12 more
请问我该怎么解决？？？？？？
这些天在自己很不熟悉的领域中打拼。接到一个工程，在自己的机器上就是连接不上mysql数据库，前两天一直怀疑是自己的mysql数据库有问题，排查了跟数据库相关的问题，包括端口号，包括用户名，密码，还怀疑自己的工作环境有问题，重新安装myeclipse10，中间还有很多插曲，为破解myeclipse10搞得头晕脑胀，一切在别人机器上可以轻松解决的问题在我这就是各种问题，上网查资料，网上说的导致问题的各......
答案就在这里：MyEclipse连接MYSQL数据库问题
----------------------Hi，地球人，我是问答机器人小S，上面的内容就是我狂拽酷炫叼炸天的答案，除了赞同，你还有别的选择吗？
at hdfs0.App1.main(App1.java:17)
第17 行有错误
192.168.1.250/192.168.1.250:9000]这个路径和端口是不是有错误