hadoop - 错误security.UserGroupInformation:PriviledgedActionException

Question

我正在尝试在HDInsights上学习Hadoop 1.1.0版。我按照分步说明在Hadoop命令行上运行命令。我首先编译Java代码，然后创建一个jar文件，然后执行map reduce命令。但是当我运行mapreduce命令时，它给了我下面的错误。有人可以帮助我了解错误的含义以及纠正该错误所需要采取的措施吗？

c:\hadoop-training\mrdcache>hadoop jar DCache.jar DCache mrdcache/input/nyse mrdcache/output

13/08/08 23:29:01 WARN mapred.JobClient: Use GenericOptionsParser for parsing the arguments. Applications should implement Tool for the same.
13/08/08 23:29:01 INFO mapred.JobClient: Cleaning up the staging area hdfs://localhost:8020/hadoop/hdfs/tmp/mapred/staging/Ramya/.staging/job_201308082321_0001
13/08/08 23:29:01 ERROR security.UserGroupInformation: PriviledgedActionException as:myusername cause:java.io.FileNotFoundException: File does not exist: mrdcache/output Exception in thread "main" java.io.FileNotFoundException: File does not exist: mrdcache/output
    at org.apache.hadoop.hdfs.DistributedFileSystem.getFileStatus(DistributedFileSystem.java:518)
    at org.apache.hadoop.filecache.DistributedCache.getFileStatus(DistributedCache.java:185)
    at org.apache.hadoop.filecache.TrackerDistributedCacheManager.determineTimestamps(TrackerDistributedCacheManager.java:750)
    at org.apache.hadoop.mapred.JobClient.copyAndConfigureFiles(JobClient.java:763)
    at org.apache.hadoop.mapred.JobClient.copyAndConfigureFiles(JobClient.java:655)
    at org.apache.hadoop.mapred.JobClient.access$300(JobClient.java:174)
    at org.apache.hadoop.mapred.JobClient$2.run(JobClient.java:865)
    at org.apache.hadoop.mapred.JobClient$2.run(JobClient.java:850)
    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:1135)
    at org.apache.hadoop.mapred.JobClient.submitJobInternal(JobClient.java:850)
    at org.apache.hadoop.mapred.JobClient.submitJob(JobClient.java:824)
    at org.apache.hadoop.mapred.JobClient.runJob(JobClient.java:1261)
    at DCache.main(Dcache.java:199)
    at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
    at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
    at     sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
    at java.lang.reflect.Method.invoke(Method.java:597)
    at org.apache.hadoop.util.RunJar.main(RunJar.java:156)

感谢任何帮助!
谢谢，
拉米亚

Answer 1

文件在哪里？您应该这样使用ASV:
hadoop jar C:\ Tutorials \ log4jMapReduce.jar log4jMapReduce asv:///sample.log asv:/// Tutorials / output

http://www.windowsazure.com/en-us/manage/services/hdinsight/using-mapreduce-with-hdinsight/