[DRILL-3007] Update Drill configuration settings to avoid mmap threshold increases on Linux

• Type: Bug
• Status: Resolved
• Priority: Major
• Resolution: Fixed
• Fix Version/s: 1.0.0
• Component/s: Execution - Flow
• Assignee: Jacques Nadeau
• Reporter: Jacques Nadeau
• Created: 10/May/15 00:15
• Updated: 10/May/15 20:26
• Resolved: 10/May/15 20:26

Description

Because Drill uses extensive direct memory but often caches random segments, it is important to make sure all the memory chunks are allocated as MMAP regions so Drill correctly releases memory back to the OS. We need to update the Drill environment variables to ensure this.