What will be the impact of choosing “majority” write concern in a P-S-A topology when the secondary is down. will this block the writes?
Looks like not a good idea as per https://docs.mongodb.com/manual/reference/write-concern/#wc-ack-behavior . I was curious about “why avoid Arbiter” and hence questions around it popped up in my mind.
Yes, not a good idea at all if you have a P-S-A configuration. If the secondary is down then the acknowledgement will never be received by the client.