The eclipse-plugin cannot work in my environment

I compile the hadoop plugin for eclipse 4.2.2 and 4.3.0,but both of them cannot work well,the error is like this:

Cannot connect to the Map/Reduce location: hx
Call to localhost/127.0.0.1:9001 failed on connection exception: java.net.ConnectException: 拒绝连接

信息: Retrying connect to server: localhost/127.0.0.1:9001. Already tried 5 time(s); retry policy is RetryUpToMaximumCountWithFixedSleep(maxRetries=10, sleepTime=1 SECONDS)
二月 26, 2014 10:53:42 下午 org.apache.hadoop.ipc.Client$Connection handleConnectionFailure
信息: Retrying connect to server: localhost/127.0.0.1:9001. Already tried 6 time(s); retry policy is RetryUpToMaximumCountWithFixedSleep(maxRetries=10, sleepTime=1 SECONDS)
二月 26, 2014 10:53:43 下午 org.apache.hadoop.ipc.Client$Connection handleConnectionFailure
信息: Retrying connect to server: localhost/127.0.0.1:9001. Already tried 7 time(s); retry policy is RetryUpToMaximumCountWithFixedSleep(maxRetries=10, sleepTime=1 SECONDS)
二月 26, 2014 10:53:44 下午 org.apache.hadoop.ipc.Client$Connection handleConnectionFailure
信息: Retrying connect to server: localhost/127.0.0.1:9001. Already tried 8 time(s); retry policy is RetryUpToMaximumCountWithFixedSleep(maxRetries=10, sleepTime=1 SECONDS)
二月 26, 2014 10:53:45 下午 org.apache.hadoop.ipc.Client$Connection handleConnectionFailure
信息: Retrying connect to server: localhost/127.0.0.1:9001. Already tried 9 time(s); retry policy is RetryUpToMaximumCountWithFixedSleep(maxRetries=10, sleepTime=1 SECONDS)

I don't know what happens,the version of eclipse is not right?