Description

The docs around majority write concern are relatively clear that only voting nodes are counted, but docs on majority read concern do not mention anything about whether non-voting nodes (and, I suppose, non-data-bearining nodes) can . Off the top of my head, the following should be clarified:

• https://github.com/mongodb/mongo/blob/master/src/mongo/db/repl/README.md
• https://docs.mongodb.com/manual/reference/read-concern/
• https://docs.mongodb.com/manual/reference/read-concern-majority/

Compare this to wording in e.g. https://docs.mongodb.com/manual/reference/write-concern/: "Requests acknowledgment that write operations have propagated to the majority (M) of data-bearing voting members."

Scope of changes

Impact to Other Docs

MVP (Work and Date)

Resources (Scope or Design Docs, Invision, etc.)