4
votes
2answers
202 views

How to change the master in a MongoDB cluster without restarting the process?

Reading the documentation of MongoDB about how to configure a master-slave configuration of a cluster (our cluster will have more than 12 nodes, so unfortunately we can't have a replica-set ...
3
votes
1answer
414 views

MongoDB -what's the safest and most efficient way to change from Master-Slave to ReplicaSet?

I now have two mongo servers with a Master-Slave configuration (all read-writes are done with the Master, the Slave is just a cold backup) serving a pretty demanding web app. I want to switch to ...
1
vote
1answer
174 views

MongoDB ReplicaSet Elections when some nodes are down

I'm trying to get into ReplicaSet concept, and found something weird in mongoDB Documentation: For a node to be elected primary, it must receive a majority of votes. This is a majority of all ...