[HIVE-8597] SMB join small table side should use the same set of serialized payloads across tasks

• Type: Improvement
• Status: Closed
• Priority: Major
• Resolution: Fixed
• Affects Version/s: 0.14.0
• Fix Version/s: 0.14.0
• Component/s: Tez
• Assignee: Siddharth Seth
• Reporter: Siddharth Seth
• Created: 24/Oct/14 18:35
• Updated: 13/Nov/14 19:41
• Resolved: 29/Oct/14 00:42

Description

Each task sees all splits belonging to the bucket being processed by the task. At the moment, we end up using different instances of the same serialized split which adds unnecessary memory pressure.