[ https://issues.apache.org/jira/browse/MAPREDUCE-4717?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
Aaron T. Myers resolved MAPREDUCE-4717. --------------------------------------- Resolution: Not A Problem Hi Sagar, this looks to me to be most likely a configuration error, in which case you should try emailing a user mailing list. I'm guessing from the facts that you say you configured federation and you're using MR1 that you're using CDH, in which case you should email cdh-u...@cloudera.org. If I'm wrong about that and you're somehow using a straight Apache release, then you should email u...@hadoop.apache.org. > Mapreduce job fails to run after configuring multiple namespaces [HDFS > Federation] > ---------------------------------------------------------------------------------- > > Key: MAPREDUCE-4717 > URL: https://issues.apache.org/jira/browse/MAPREDUCE-4717 > Project: Hadoop Map/Reduce > Issue Type: Bug > Components: mrv1 > Affects Versions: 0.20.2 > Environment: 2 Standalone Desktop with 360Gb HDD and 4GB RAM - Acting > as two Namenodes > 2 Virtual Machine with 60GB HDD and 1GB RAM - Acting as Job tracker and > zookeeper > Reporter: Sagar Shimpi > > I am having setup of 4 nodes with following details - > Standalone Desktop-1 -> > NameNode1,Tasktracker,Zookeeper,Jobtracker,datanode,HMaster > Standalone Desktop-2 -> NameNode2,Tasktracker,datanode.RegionServer > Virtual Machine-1 -> Namenode3,Datanode,Tasktracker > Virtual Machine-2 -> Namenode4,Datanode,Tasktracker > I have configured HDFS Federation with following name service - > a) nameservice1 > b) oss-hadoop-nameservice > While executing Mapreduce job I am getting following error - > ================================================================ > -bash-4.1$ id > uid=496(hdfs) gid=496(hdfs) groups=496(hdfs),497(hadoop) > -bash-4.1$ hadoop jar /usr/lib/hadoop-mapreduce/hadoop-mapreduce-examples.jar > wordcount /hbase/install.log.syslog /hbase/testing > 12/10/10 12:30:21 ERROR security.UserGroupInformation: > PriviledgedActionException as:hdfs (auth:SIMPLE) cause:java.io.IOException: > viewfs://cluster6/ > java.io.IOException: viewfs://cluster6/ > at org.apache.hadoop.fs.viewfs.InodeTree.<init>(InodeTree.java:338) > at > org.apache.hadoop.fs.viewfs.ViewFileSystem$1.<init>(ViewFileSystem.java:178) > at > org.apache.hadoop.fs.viewfs.ViewFileSystem.initialize(ViewFileSystem.java:178) > at > org.apache.hadoop.fs.FileSystem.createFileSystem(FileSystem.java:2150) > at org.apache.hadoop.fs.FileSystem.access$200(FileSystem.java:80) > at > org.apache.hadoop.fs.FileSystem$Cache.getInternal(FileSystem.java:2184) > at org.apache.hadoop.fs.FileSystem$Cache.get(FileSystem.java:2166) > at org.apache.hadoop.fs.FileSystem.get(FileSystem.java:302) > at org.apache.hadoop.fs.Path.getFileSystem(Path.java:194) > at > org.apache.hadoop.mapreduce.JobSubmissionFiles.getStagingDir(JobSubmissionFiles.java:103) > at org.apache.hadoop.mapred.JobClient$2.run(JobClient.java:850) > at org.apache.hadoop.mapred.JobClient$2.run(JobClient.java:844) > at java.security.AccessController.doPrivileged(Native Method) > at javax.security.auth.Subject.doAs(Subject.java:396) > at > org.apache.hadoop.security.UserGroupInformation.doAs(UserGroupInformation.java:1232) > at > org.apache.hadoop.mapred.JobClient.submitJobInternal(JobClient.java:844) > at org.apache.hadoop.mapreduce.Job.submit(Job.java:481) > at org.apache.hadoop.mapreduce.Job.waitForCompletion(Job.java:511) > at org.apache.hadoop.examples.WordCount.main(WordCount.java:67) > at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) > at > sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39) > at > sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25) > at java.lang.reflect.Method.invoke(Method.java:597) > at > org.apache.hadoop.util.ProgramDriver$ProgramDescription.invoke(ProgramDriver.java:72) > at org.apache.hadoop.util.ProgramDriver.driver(ProgramDriver.java:144) > at > org.apache.hadoop.examples.ExampleDriver.main(ExampleDriver.java:64) > 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:208) > -bash-4.1$ > ================================================================ -- This message is automatically generated by JIRA. If you think it was sent incorrectly, please contact your JIRA administrators For more information on JIRA, see: http://www.atlassian.com/software/jira