[SERVER-23805] Use boost::optional to specify optional metrics in OpDebug Created: 19/Apr/16  Updated: 06/Dec/22

Status: Backlog
Project: Core Server
Component/s: Diagnostics, Querying
Affects Version/s: None
Fix Version/s: None

Type: Improvement Priority: Major - P3
Reporter: James Wahlin Assignee: Backlog - Query Execution
Resolution: Unresolved Votes: 0
Labels: None
Remaining Estimate: Not Specified
Time Spent: Not Specified
Original Estimate: Not Specified

Assigned Teams:
Query Execution
Participants:

 Description   

At present we use both '0' and '-1' to initialize OpDebug metrics. '-1' signifies unset but often introduces extra non-intuitive initialization work for users. '0' removes this work but makes understanding which metrics are unused harder.

Use of boost:optional would make non-use explicit and make initialization / use clearer.


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