[PIG-3430] Add xml format for explaining MapReduce Plan.

• Type: New Feature
• Status: Closed
• Priority: Major
• Resolution: Fixed
• Fix Version/s: 0.12.0
• Hadoop Flags: Reviewed

Release Note

Pig now supports printing out the MapReduce plan in an xml format. To run:

pig -e 'explain -xml -script <pigscript>'

• Assignee: Jeremy Karn
• Reporter: Jeremy Karn
• Created: 19/Aug/13 11:51
• Updated: 14/Oct/13 16:46
• Resolved: 09/Sep/13 17:37

Description

At Mortar we needed an easy way to store/parse a script's map reduce plan. We added an xml output format for the MapReduce plan to make this easier. We also added a flag to keep track of if each store or load was from the original script (and associated with an alias) or if its a temporary store/load generated by Pig.