[ARROW-4147] [JAVA] Reduce heap usage for variable width vectors

• Type: Bug
• Status: Resolved
• Priority: Major
• Resolution: Fixed
• Fix Version/s: 0.12.0
• Component/s: Java
• Labels: pull-request-available
• External issue URL: https://github.com/apache/arrow/issues/20733
• Assignee: Pindikura Ravindra
• Reporter: Pindikura Ravindra
• Created: 03/Jan/19 07:35
• Updated: 11/Jan/23 07:32
• Resolved: 09/Jan/19 03:44

Description

This is a follow up to ARROW-1807. The same changes need to be done for variable len vectors too.

Also, the default value for initial allocations (4096) causes a lot of wastage, and needs to be changed (to 3970).

Issue Links

• links to: GitHub Pull Request #3298