[PIG-3604] Implement replicated join in Tez

• Type: Sub-task
• Status: Closed
• Priority: Major
• Resolution: Fixed
• Affects Version/s: tez-branch
• Fix Version/s: tez-branch
• Component/s: tez
• Assignee: Cheolsoo Park
• Reporter: Cheolsoo Park
• Created: 01/Dec/13 07:07
• Updated: 21/Nov/14 05:59
• Resolved: 18/Dec/13 18:51

Description

I propose we implement replicated join as follows-

• Vertex 1: Loads replicated table and broadcasts it to vertex 2.
• Vertex 2: Loads fragmented table and join it with broadcasted input from vertex 1.
• New POPackage for vertex 2 that can consume a broadcast input and a file input needs to be implemented.