[OAK-4725] Enable mmap mode by default for migration to SegmentNodeStore

• Type: Improvement
• Status: Closed
• Priority: Minor
• Resolution: Fixed
• Fix Version/s: 1.4.12, 1.5.10, 1.6.0
• Component/s: upgrade
• Assignee: Tomek Rękawek
• Reporter: Chetan Mehrotra
• Created: 31/Aug/16 09:57
• Updated: 16/Dec/16 11:19
• Resolved: 05/Sep/16 11:28

Description

Currently in MigrationOptions in upgrade code the mmap option is only enabled if explicitly enabled.

Given it provides much better migration speed it would be better to enable it by default (at least for non windows platforms) and provide a way to disable it by option. This would ensure that migration uses most suitable options per default

Issue Links

• Is contained by: OAK-5290 Backport the performance improvements for oak-upgrade from trunk