Using a copy of the Cloudera security-enabled CDH3b3, we installed vanilla hadoop in /home/www/hadoop
Now when a try to run a job as me I get permission errors - I am not even sure if the error is in writing to local files or hdfs or where staging is but I need to set permissions to allow the job to work Any bright ideas 10/11/09 12:58:04 WARN conf.Configuration: mapred.task.id is deprecated. Instead, use mapreduce.task.attempt.id Exception in thread "main" org.apache.hadoop.security.AccessControlException: Permission denied: user=slewis, access=WRITE, inode="staging":www:supergroup:rwxr-xr-x at org.apache.hadoop.hdfs.server.namenode.FSPermissionChecker.check(FSPermissionChecker.java:207) at org.apache.hadoop.hdfs.server.namenode.FSPermissionChecker.check(FSPermissionChecker.java:188) at org.apache.hadoop.hdfs.server.namenode.FSPermissionChecker.checkPermission(FSPermissionChecker.java:136) at org.apache.hadoop.hdfs.server.namenode.FSNamesystem.checkPermission(FSNamesystem.java:4019) at org.apache.hadoop.hdfs.server.namenode.FSNamesystem.checkAncestorAccess(FSNamesystem.java:3993) at org.apache.hadoop.hdfs.server.namenode.FSNamesystem.mkdirsInternal(FSNamesystem.java:1914) at org.apache.hadoop.hdfs.server.namenode.FSNamesystem.mkdirs(FSNamesystem.java:1882) at org.apache.hadoop.hdfs.server.namenode.NameNode.mkdirs(NameNode.java:847) at sun.reflect.GeneratedMethodAccessor21.invoke(Unknown Source) at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25) at java.lang.reflect.Method.invoke(Method.java:597) at org.apache.hadoop.ipc.WritableRpcEngine$Server.call(WritableRpcEngine.java:342) at org.apache.hadoop.ipc.Server$Handler$1.run(Server.java:1350) at org.apache.hadoop.ipc.Server$Handler$1.run(Server.java:1346) at java.security.AccessController.doPrivileged(Native Method) at javax.security.auth.Subject.doAs(Subject.java:396) at org.apache.hadoop.security.UserGroupInformation.doAs(UserGroupInformation.java:742) at org.apache.hadoop.ipc.Server$Handler.run(Server.java:1344) -- Steven M. Lewis PhD 4221 105th Ave Ne Kirkland, WA 98033 206-384-1340 (cell) Institute for Systems Biology Seattle WA
