[OAK-7788] Measure read rate for the Segment Store

• Type: Improvement
• Status: Closed
• Priority: Major
• Resolution: Fixed
• Fix Version/s: 1.10.0, 1.9.9
• Component/s: segment-tar
• Assignee: Francesco Mari
• Reporter: Francesco Mari
• Created: 28/Sep/18 11:38
• Updated: 04/Oct/19 17:52
• Resolved: 02/Oct/18 09:39

Description

In order to better understand the behaviour of the Segment Store, we should measure its read rate, defined as the amount of API calls performed by the user that might trigger a read to the underlying persistence layer.

The outermost API we can instrument is the NodeState. Calls to this API represent a clear intention of the user to read the repository data. A lower level API would not carry the same semantics and would be ineffective for deducing the intentions of the user.