Dear community,
We are using round-robin in HAProxy as a load-balancing algorithm. In our
backend config, we use prefer-last-server as an option. But according to the
documentation
(https://www.haproxy.com/documentation/haproxy-configuration-manual/latest/#4.2-option%20prefer-last-server),
the option is only applied when the load balancing algorithm in use is not
deterministic. We could not find any examples in the documentation of what load
balancing algorithms HAProxy considers as deterministic. According to our
understanding, the round robin algorithm is a deterministic one. Can you
confirm whether our understanding is correct that this option
prefer-last-server is fully ignored in our case?
Our config looks like:
backend http-routers-http1
mode http
balance roundrobin
option srvtcpka
no option http-server-close
option prefer-last-server
Thanks a lot and best regards,
Tamara
