[HDFS-4134] hadoop namenode & datanode entry points should return negative exit code on bad arguments

• Type: Bug
• Status: Closed
• Priority: Minor
• Resolution: Fixed
• Affects Version/s: 1.0.4
• Fix Version/s: 1.1.1
• Component/s: namenode
• Target Version/s: 1.1.1
• Hadoop Flags: Reviewed
• Assignee: Unassigned
• Reporter: Steve Loughran
• Created: 01/Nov/12 15:35
• Updated: 03/Dec/12 07:33
• Resolved: 08/Nov/12 21:41

Description

When you go hadoop namenode start (or some other bad argument to the namenode), a usage message is generated -but the script returns 0.

This stops it being a robust command to invoke from other scripts -and is inconsistent with the JT & TT entry points, that do return -1 on a usage message