How to synchronize the amount of online?

Question

Node.js

I am building a node.js server using cluster. I need to synchronize the amount of online between child processes. What is the best way to do this? I tried to take data from the parent process through process.send, but I think that this is not the best option. Can you suggest something?

Answer 1

Write to the database, for example, to Mongo via inc. Synchronizing through process.send is also not bad, but it is better to make TCP sockets between processes, I compared them, they work faster. Although, if we are only talking about the number of connections, then it does not matter what to synchronize, this is not a lot of data and not a very intensive exchange.