What is the optimal way to listen for many TCP connections?

Question

XMPP

The task is to make an autoresponder for one messenger
, I have an asynchronous TCP client implemented
, so when 30-40 accounts work, everything is fine
when I add 100+, not all messages reach me
, tell me in which direction to look
, ideally, you need to keep 1k+ connections

Answer 1

Each connection is a separate thread.
In general, I would like to know in more detail what you mean by "not all messages reach me."

Answer 2

Surely keeping 1000+ connections open at the same time is not necessary. A connection can be established when a message is sent and closed immediately upon receipt. Check the architecture of the application. Another (dead end) way is to increase the capabilities of iron.