bin/hdfs should print a message when an invalid command is specified --------------------------------------------------------------------
Key: HDFS-2930 URL: https://issues.apache.org/jira/browse/HDFS-2930 Project: Hadoop HDFS Issue Type: Improvement Components: tools Affects Versions: 0.23.1 Reporter: Eli Collins hdfs will currently give a NoClassDefFoundError stacktrace if there's a typo specifying the command. {noformat} hadoop-0.24.0-SNAPSHOT $ ./bin/hdfs dfadmin Exception in thread "main" java.lang.NoClassDefFoundError: dfadmin Caused by: java.lang.ClassNotFoundException: dfadmin at java.net.URLClassLoader$1.run(URLClassLoader.java:202) at java.security.AccessController.doPrivileged(Native Method) at java.net.URLClassLoader.findClass(URLClassLoader.java:190) at java.lang.ClassLoader.loadClass(ClassLoader.java:307) at sun.misc.Launcher$AppClassLoader.loadClass(Launcher.java:301) at java.lang.ClassLoader.loadClass(ClassLoader.java:248) {noformat} -- This message is automatically generated by JIRA. If you think it was sent incorrectly, please contact your JIRA administrators: https://issues.apache.org/jira/secure/ContactAdministrators!default.jspa For more information on JIRA, see: http://www.atlassian.com/software/jira