What exactly worker_connections are not enough means?

Jiří Moskovčák moskovcak at gmail.com
Wed Dec 21 15:23:33 UTC 2016

I'm trying to use nginx as a udp loadbalancer. I got to ~40k pkt/s with my
experiments, but occasionally seeing alert message in the log saying: XXXX
worker_connections are not enough. Atm I'm using 65000 worker_connections
and still seeing the message - roughly 1 message per minute. netstat
doesn't show any UDP recv or send errors so it seems like there is no
packet loss related to that log message, but I'd like someone to help me
understand what that means and if I can tune something to get rid of it.

Thank you,
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