How to increase fd_setsize & ulimit for HAProxy ? How to increase file descriptors max limit on Linux restart error [root@paranoid ~]# ssh haproxy1 Last login: Tue Jun 13 10:13:06 2017 from data-server.cs2aa3cloud.internal [root@haproxy1 ~]# systemctl status haproxy ● haproxy.service - SYSV: HA-Proxy is a TCP/HTTP reverse proxy which is particularly suited for high availability environments. Loa..