What are the measures for converting existing mongo db instance, which is being used by application and contains application data in it.
Q1. Will converting instance into replica set persist application data?
Q2. Will adding new node into replica set make copy of existing data, which were stored before adding this node?
Q3. I s there any change in application connecting to mongo instance?
P.S. Is adding node for separating analytics and application db good example ?
Thanks in advance