[ARROW-1807] [JAVA] Reduce Heap Usage (Phase 3): consolidate buffers

• Type: Improvement
• Status: Resolved
• Priority: Major
• Resolution: Fixed
• Fix Version/s: 0.13.0
• Component/s: Java
• Labels: pull-request-available
• External issue URL: https://github.com/apache/arrow/issues/17804
• Assignee: Pindikura Ravindra
• Reporter: Siddharth Teotia
• Created: 13/Nov/17 21:14
• Updated: 11/Jan/23 07:17
• Resolved: 15/Dec/18 00:18

Description

Consolidate buffers for reducing the volume of objects and heap usage

<validity + data> => single buffer for fixed width
< validity + offsets> = single buffer for var width, list vector

Issue Links

• blocks: ARROW-1621 [JAVA] Reduce Heap Usage per Vector
• is related to: ARROW-3987 [Java] Benchmark results for ARROW-1807
• links to: GitHub Pull Request #3121