[HADOOP-2833] JobClient.submitJob(...) should not use "Dr Who" as a default username

• Type: Bug
• Status: Closed
• Priority: Major
• Resolution: Fixed
• Fix Version/s: 0.16.2
• Assignee: Tsz-wo Sze
• Reporter: Tsz-wo Sze
• Created: 14/Feb/08 19:50
• Updated: 08/Jul/09 16:52
• Resolved: 03/Mar/08 20:14

Description

In JobClient line 530, we have

String user = System.getProperty("user.name");
job.setUser(user != null ? user : "Dr Who");

Since a ugi is already obtained in the earlier codes, we should get the username from ugi, not System.getProperty("user.name"). Also, Exception should be thrown if the username is null, instead of using a default.