[OAK-2938] Estimation of required memory for compaction is off

• Type: Bug
• Status: Closed
• Priority: Major
• Resolution: Fixed
• Fix Version/s: 1.0.15, 1.2.3, 1.3.0, 1.4
• Component/s: segmentmk
• Labels: compaction gc
• Epic Link: SegmentMK revision GC
• Assignee: Michael Dürig
• Reporter: Michael Dürig
• Created: 01/Jun/15 09:27
• Updated: 02/Mar/16 11:28
• Resolved: 01/Jun/15 10:11

Description

Currently compaction will be skipped if some rough estimation determines that there is not enough memory to run. That estimation however assumes that each compaction cycle requires as much space as the compaction map already takes up. This is too conservative. Instead the amount of memory taken up by the last compaction cycle should be a better estimate.