[I work at Meteor and contributed to the MongoDB realtime driver]
Scaling low-latency data synchronization is a challenge for scalability for sure! We are gradually building better and better drivers with persistence to MongoDB.
The scalability can vary greatly depending on your application's data schema, usage patterns and amount of writes.
If you watch the mentioned talk carefully, the speaker describes a collaboration tool with log replay with a lot of actions and running from a single box.
Scaling low-latency data synchronization is a challenge for scalability for sure! We are gradually building better and better drivers with persistence to MongoDB.
The scalability can vary greatly depending on your application's data schema, usage patterns and amount of writes.
If you watch the mentioned talk carefully, the speaker describes a collaboration tool with log replay with a lot of actions and running from a single box.