[PIG-793] Improving memory efficiency of Tuple implementation

• Type: Improvement
• Status: Resolved
• Priority: Major
• Resolution: Won't Fix
• Assignee: Alan Gates
• Reporter: Olga Natkovich
• Created: 30/Apr/09 20:52
• Updated: 22/Aug/12 21:55
• Resolved: 22/Aug/12 21:55

Description

Currently, our tuple is a real pig and uses a lot of extra memory.

There are several places where we can improve memory efficiency:

(1) Laying out memory for the fields rather than using java objects since since each object for a numeric field takes 16 bytes
(2) For the cases where we know the schema using Java arrays rather than ArrayList.

There might be more.