[MAPREDUCE-4123] ./mapred groups gives NoClassDefFoundError

• Type: Bug
• Status: Closed
• Priority: Critical
• Resolution: Fixed
• Affects Version/s: 2.0.0-alpha, 3.0.0-alpha1
• Fix Version/s: 2.0.3-alpha
• Component/s: mrv2
• Hadoop Flags: Incompatible change, Reviewed
• Assignee: Devaraj Kavali
• Reporter: Nishan Shetty
• Created: 09/Apr/12 09:33
• Updated: 12/May/16 18:22
• Resolved: 03/Oct/12 21:29

Description

linux-168:/home/v2/hadoop-3.0.0-SNAPSHOT/bin # ./mapred groups
Exception in thread "main" java.lang.NoClassDefFoundError: org/apache/hadoop/mapred/tools/GetGroups
Caused by: java.lang.ClassNotFoundException: org.apache.hadoop.mapred.tools.GetGroups
at java.net.URLClassLoader$1.run(URLClassLoader.java:200)
at java.security.AccessController.doPrivileged(Native Method)
at java.net.URLClassLoader.findClass(URLClassLoader.java:188)
at java.lang.ClassLoader.loadClass(ClassLoader.java:303)
at sun.misc.Launcher$AppClassLoader.loadClass(Launcher.java:301)
at java.lang.ClassLoader.loadClass(ClassLoader.java:248)
at java.lang.ClassLoader.loadClassInternal(ClassLoader.java:316)
Could not find the main class: org.apache.hadoop.mapred.tools.GetGroups. Program will exit.