为什么我的eclipse连不到远程hadoop server?

[dev_test]

core-site.xml:

<configuration>
    <property>
        <name>fs.default.name</name>
        <value>hdfs://localhost:9000</value>
    </property>
</configuration>

运行命令bin/start-all.sh后运行 jps 命令，我能发现:NameNode,DataNode, TaskTracker,JobTracker,SecondaryNameNode 都在运行，但当我用eclipse连接这台hadoop server(hostname master)时,我得到了下面的出错信息,还有http://master:50030,50070都能正常访问，但不能telnet 9000端口,这是为什么呀？

13/11/14 11:08:37 INFO ipc.Client: Retrying connect to server: master/9.121.120.234:9000. Already tried 9 time(s); retry policy is RetryUpToMaximumCountWithFixedSleep(maxRetries=10, sleepTime=1 SECONDS)
Exception in thread "main" java.lang.RuntimeException: java.net.ConnectException: Call to master/9.121.120.234:9000 failed on connection exception: java.net.ConnectException: Connection timed out: no further information
at org.apache.hadoop.mapred.JobConf.getWorkingDirectory(JobConf.java:567)
at org.apache.hadoop.mapred.FileInputFormat.setInputPaths(FileInputFormat.java:318)
at wordcount.WordCount.main(WordCount.java:62)

[venchr]

1,通过netstat -ano|grep "9000"确定9000端口是否监听，如果没有监听，则查看日志，日志中有提示 2,把localhost改成IP地址 ps: core-site.xml文件设置的端口没监听，eclipse当然就无法连接上

[晚起的鸟]

首先有些进程会假起，过一会在jps查看，尤其是namenode进程是否还在，如果还在，那需要贴出代码看看了。

[CJ_Company]

配置里面localhost错了！是namenode的地址