Hi all,
Just finished running a job using Hadoop 0.20.203.0 and Pig 0.9.1, pulling data
out of a single Cassandra 1.0.7 column family. It completed successfully , but
I'm seeing this exception on a lot of the completed tasks in the task list:
java.lang.RuntimeException: Error while running command to get file permissions
: org.apache.hadoop.util.Shell$ExitCodeException:
at org.apache.hadoop.util.Shell.runCommand(Shell.java:255)
at org.apache.hadoop.util.Shell.run(Shell.java:182)
at
org.apache.hadoop.util.Shell$ShellCommandExecutor.execute(Shell.java:375)
at org.apache.hadoop.util.Shell.execCommand(Shell.java:461)
at org.apache.hadoop.util.Shell.execCommand(Shell.java:444)
at
org.apache.hadoop.fs.RawLocalFileSystem.execCommand(RawLocalFileSystem.java:540)
at
org.apache.hadoop.fs.RawLocalFileSystem.access$100(RawLocalFileSystem.java:37)
at
org.apache.hadoop.fs.RawLocalFileSystem$RawLocalFileStatus.loadPermissionInfo(RawLocalFileSystem.java:417)
at
org.apache.hadoop.fs.RawLocalFileSystem$RawLocalFileStatus.getOwner(RawLocalFileSystem.java:400)
at org.apache.hadoop.mapred.TaskLog.obtainLogDirOwner(TaskLog.java:176)
at
org.apache.hadoop.mapred.TaskLogsTruncater.truncateLogs(TaskLogsTruncater.java:124)
at org.apache.hadoop.mapred.Child$4.run(Child.java:264)
at java.security.AccessController.doPrivileged(Native Method)
at javax.security.auth.Subject.doAs(Subject.java:396)
at
org.apache.hadoop.security.UserGroupInformation.doAs(UserGroupInformation.java:1059)
at org.apache.hadoop.mapred.Child.main(Child.java:253)
at
org.apache.hadoop.fs.RawLocalFileSystem$RawLocalFileStatus.loadPermissionInfo(RawLocalFileSystem.java:442)
at
org.apache.hadoop.fs.RawLocalFileSystem$RawLocalFileStatus.getOwner(RawLocalFileSystem.java:400)
at org.apache.hadoop.mapred.TaskLog.obtainLogDirOwner(TaskLog.java:176)
at
org.apache.hadoop.mapred.TaskLogsTruncater.truncateLogs(TaskLogsTruncater.java:124)
at org.apache.hadoop.mapred.Child$4.run(Child.java:264)
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:1059)
at org.apache.hadoop.mapred.Child.main(Child.java:253)
I'm sure it's something simple, but I haven't been able to extract any
understanding from the Google machine. Does anybody have any insight into why
this may be happening?
Thanks,
Gabriel Rosendorf
IT Operations Engineer
E3 Greentech Enterprises
