hadoop技术

13/05/09 10:29:09 INFO mapred.JobClient: Task Id : attempt_201305091006_0006_m_000003_0, Status : FAILED
org.apache.hadoop.security.AccessControlException: org.apache.hadoop.security.AccessControlException: Permission denied: user=yy-pc\yy_2, access=WRITE, inode="cyg_server":yy-pc\cyg_server:supergroup:rwxr-xr-x at sun.reflect.NativeConstructorAccessorImpl.newInstance0(Native Method)
at sun.reflect.NativeConstructorAccessorImpl.newInstance(NativeConstructorAccessorImpl.java:39)
at sun.reflect.DelegatingConstructorAccessorImpl.newInstance(DelegatingConstructorAccessorImpl.java:27)
at java.lang.reflect.Constructor.newInstance(Constructor.java:513)
at org.apache.hadoop.ipc.RemoteException.instantiateException(RemoteException.java:96)
at org.apache.hadoop.ipc.RemoteException.unwrapRemoteException(RemoteException.java:58)
at org.apache.hadoop.hdfs.DFSClient.mkdirs(DFSClient.java:914)
at org.apache.hadoop.hdfs.DistributedFileSystem.mkdirs(DistributedFileSystem.java:262)
at org.apache.hadoop.fs.FileSystem.mkdirs(FileSystem.java:1120)
at org.apache.hadoop.mapreduce.lib.output.FileOutputCommitter.setupJob(FileOutputCommitter.java:77)
at org.apache.hadoop.mapred.Task.runJobSetupTask(Task.java:835)
at org.apache.hadoop.mapred.MapTask.run(MapTask.java:296)
at org.apache.hadoop.mapred.Child.main(Child.java:170)
我配置了hdfs-site.xml
如下：
<configuration> 
<property>                
<name>dfs.replication</name>                
<value>1</value>               
<description>
Default block replication. The actual number of replications can be specified when the file is created. The default isused if replication is not specified in create time.
</description>        
</property>
<property>
<name>dfs.permissions</name>
<value>false</value>
<description>
If "true", enable permission checking in HDFS.
If "false", permission checking is turned off,
but all other behavior is unchanged.
Switching from one parameter value to the other does not change the mode,
owner or group of files or directories.
    </description>
</property>
</configuration>
但是运行还是出现错误！ 求各位大仙帮忙！Hadoop服务器技术