[MAPREDUCE-3037] Add a consistent method for getting the job configuration's XML within the AppMaster and the JobHistory

• Type: Improvement
• Status: Resolved
• Priority: Major
• Resolution: Won't Fix
• Affects Version/s: 0.23.0
• Component/s: mrv2
• Target Version/s: 0.23.1
• Assignee: Unassigned
• Reporter: Jeffrey Naisbitt
• Created: 19/Sep/11 17:21
• Updated: 28/Sep/15 21:10
• Resolved: 17/Feb/12 22:29

Description

We should add consistent functionality for accessing/downloading the actual XML for the jobfile configuration from the Web UI (for both the AppMaster UI and the JobHistory UI). Currently, you can get an HTML table with the configuration through /yarn/conf (a "Configuration" link on the left side of the UI). It would be good to add a link there that allows the user to actually download the XML. We could either have a conf-xml servlet or even better we could do something more REST-like by allowing requests to contain the desired format (XML, HTML, JSON, etc?).

Issue Links

• relates to: MAPREDUCE-2726 MR-279: Add the jobFile to the web UI
• relates to: MAPREDUCE-2676 MR-279: JobHistory Job page needs reformatted