今天没事干，看了以下Hadoop中的MultipleOutput使用，出现错误.

错误信息：

14/08/12 12:44:02 WARN util.NativeCodeLoader: Unable to load native-ha：oop library for your platform... using builtin-java classes where applicable

14/08/12 12:44:02 ERROR security.UserGroupInformation: PriviledgedActionException as:Xr cause:java.io.IOException: Failed to set permissions of path: \tmp\hadoop-Xr\mapred\staging\Xr-1514460710\.staging to 0700

Exception in thread "main" java.io.IOException: Failed to set permissions of path: \tmp\hadoop-Xr\mapred\staging\Xr-1514460710\.staging to 0700

    at org.apache.hadoop.fs.FileUtil.checkReturnValue(FileUtil.java:689)

    at org.apache.hadoop.fs.FileUtil.setPermission(FileUtil.java:662)

    at org.apache.hadoop.fs.RawLocalFileSystem.setPermission(RawLocalFileSystem.java:509)

    at org.apache.hadoop.fs.RawLocalFileSystem.mkdirs(RawLocalFileSystem.java:344)

    at org.apache.hadoop.fs.FilterFileSystem.mkdirs(FilterFileSystem.java:189)

    at org.apache.hadoop.mapreduce.JobSubmissionFiles.getStagingDir(JobSubmissionFiles.java:116)

    at org.apache.hadoop.mapred.JobClient$2.run(JobClient.java:918)

    at org.apache.hadoop.mapred.JobClient$2.run(JobClient.java:912)

    at java.security.AccessController.doPrivileged(Native Method)

    at javax.security.auth.Subject.doAs(Subject.java:396)

    at org.apache.hadoop.security.UserGroupInformation.doAs(UserGroupInformation.java:1149)

    at org.apache.hadoop.mapred.JobClient.submitJobInternal(JobClient.java:912)

    at org.apache.hadoop.mapreduce.Job.submit(Job.java:500)

    at org.apache.hadoop.mapreduce.Job.waitForCompletion(Job.java:530)

    at com.xr.text.JobTest.main(JobTest.java:37)

解决方案：

                                                                                                                            Date：2014.08.12  15:09

                                                                                                                            Name：Xr