I'm facing some issues when trying the following:
- I have a three-node MongoDB 4.0 cluster, no sharding, one mongodb instance as primary, the rest as secondaries.
- When I shut down the primary, one of the secondaries becomes the master, the other remains as secondary.
- When I shut down the new primary (former secondary), the remaining secondary doesn't become master, so the cluster stays inoperative.
I've been following the steps as documentation dictates, so there shouldn't be any configuration steps I forgot.
I even changed the order of creation, but I always get the same result.
What am I doing wrong?