[HADOOP-9685] hadoop-config.cmd: builds a classpath that is too long on windows

• Type: Bug
• Status: Resolved
• Priority: Major
• Resolution: Fixed
• Affects Version/s: 1-win
• Fix Version/s: 1-win
• Component/s: bin
• Target Version/s: 1-win
• Hadoop Flags: Reviewed
• Assignee: Raja Aluri
• Reporter: Raja Aluri
• Created: 02/Jul/13 18:36
• Updated: 08/Jul/13 16:44
• Resolved: 08/Jul/13 16:44

Description

hadoop-config.cmd, sets the class path by listing each jar file to the CLASAPATH. Many times the downstream components use hadoop_config.cmd to set the CLASAPATH for hadoop jars. After adding their own class path, many times the classpath length is hitting the windows command lenght limit.
We should try to use classpath wildcards to reduce the length of the classpath.
http://docs.oracle.com/javase/6/docs/technotes/tools/windows/classpath.html