set rate-limit sessions global
Set the process-wide session rate limit.
By setting the global setting
maxsessrate, you can limit the rate at which the load balancer creates sessions between clients and backend servers. When it reaches the limit, it stops accepting new connections. In the snippet below, 1,000 sessions per second are allowed:
global maxsessrate 1000
Note that this limit is process-wide, so it is possible for one frontend to consume the majority of the capacity. However, you can also set a per-frontend limit with either the
rate-limit sessions directive or with a stick table.
set rate-limit sessions global command to change the global
maxsessrate setting dynamically.
Below, we set the global session rate limit to 5,000 sessions per second:
$ echo "set rate-limit sessions global 5000" | sudo socat stdio /var/run/hapee-2.3/hapee-lb.sock