/var/log/op_server/output.log /var/log/op_server/error.log {
    rotate 5
    monthly
    missingok
    notifempty
    nocompress
    prerotate
        /etc/rc.d/init.d/op_server restart > /dev/null 2>&1
    endscript
    postrotate
        /etc/rc.d/init.d/op_server restart > /dev/null 2>&1
    endscript
}