[OAK-3797] SegmentTracker#collectBlobReferences should retain fewer SegmentId instances

• Type: Improvement
• Status: Closed
• Priority: Major
• Resolution: Fixed
• Fix Version/s: 1.0.32, 1.2.17, 1.4.5, 1.5.4, 1.6.0
• Component/s: segmentmk
• Labels: datastore gc
• Assignee: Alex Deparvu
• Reporter: Michael Dürig
• Created: 16/Dec/15 09:32
• Updated: 08/Jul/16 08:52
• Resolved: 16/Jun/16 13:25

Description

SegmentTracker#collectBlobReferences currently keeps a queue of yet unprocessed SegmentId instances internally. This potentially impacts the system as those instances are also tracked in the segment tracker's segment id tables. I think we should improve the implementation to not retain so many SegmentId instances and rely on arrays of msb, lsb instead.

Issue Links

• is related to: OAK-2849 Improve revision gc on SegmentMK
• is superceded by: OAK-4548 SegmentDataStoreBlobGCIT failures