[OOZIE-919] Notify user correctly of NN and JT hostname validity

• Type: Improvement
• Status: Open
• Priority: Minor
• Resolution: Unresolved
• Affects Version/s: 3.3.0
• Component/s: core
• Labels: validation
• Assignee: Unassigned
• Reporter: Ashish Vaidya
• Created: 20/Jul/12 23:36
• Updated: 03/Aug/16 18:40

Description

When value provided for JT and/or NN is malformed (incorrect scheme://hostname:port syntax), we throw the following error: 'Jobtracker/namenode not in whitelist.'

This is misleading to the user. We should let the user know that the input for those is malformed and the hostname:port syntax needs to be corrected.

Above doesn't (and shouldn't) affect the tallying of those values against the respective white lists.