We’ve got an older EMQX v3.1.1 server that has been chugging along merrily for years but recently bumped into an issue whenever we pass exactly 981 connections.
Looking at the dashboard, I notice that the “MaxFds” is sitting at 1024, which is within the same order of magnitude.
I looked through the various settings suggested by an older tuning guide, but none of those items current values seem to be setting/limiting that MaxFds. How can I increase that limit?