CentOS 8
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HAProxy : Refer to the Statistics (CUI)
2019/11/08
 
Configure HAProxy to see HAProxy Statistics Reports with commands.
[1] Install required package.
[root@dlp ~]#
dnf -y install socat
[2] Configure HAProxy.
[root@dlp ~]#
vi /etc/haproxy/haproxy.cfg
# confirm settings

# OK if following line exists in [global] section

global
.....
.....
        stats socket /var/lib/haproxy/stats

[root@dlp ~]#
systemctl restart haproxy

[3] Refer to the Statistics like follows.
# display current stats

[root@dlp ~]#
echo "show info" | socat /var/lib/haproxy/stats stdio

Name: HAProxy
Version: 1.8.15
Release_date: 2018/12/13
Nbthread: 1
Nbproc: 1
Process_num: 1
Pid: 7814
Uptime: 0d 0h59m19s
Uptime_sec: 3559
.....
.....
Tasks: 7
Run_queue: 1
Idle_pct: 100
node: dlp.srv.world
Stopping: 0
Jobs: 4
Listeners: 3

# display current stats with CSV style

[root@dlp ~]#
echo "show stat" | socat /var/lib/haproxy/stats stdio
# pxname,svname,qcur,qmax,scur,smax,slim,stot,bin,bout,dreq,dresp,ereq,econ,eresp,wretr,wredis,status,weight,act,bck,chkfail,chkdown,lastchg,downtime,qlimit,pid,iid,sid,throttle,lbtot,tracked,type,rate,rate_lim,rate_max,check_status,check_code,check_duration,hrsp_1xx,hrsp_2xx,hrsp_3xx,hrsp_4xx,hrsp_5xx,hrsp_other,hanafail,req_rate,req_rate_max,req_tot,cli_abrt,srv_abrt,comp_in,comp_out,comp_byp,comp_rsp,lastsess,last_chk,last_agt,qtime,ctime,rtime,ttime,agent_status,agent_code,agent_duration,check_desc,agent_desc,check_rise,check_fall,check_health,agent_rise,agent_fall,agent_health,addr,cookie,mode,algo,conn_rate,conn_rate_max,conn_tot,intercepted,dcon,dses,
http-in,FRONTEND,,,0,1,3000,53,27491,736580,0,0,0,,,,,OPEN,,,,,,,,,1,2,0,,,,0,0,0,1,,,,0,64,2,1,0,0,,0,2,67,,,0,0,0,0,,,,,,,,,,,,,,,,,,,,,http,,0,1,53,0,0,0,
backend_servers,node01,0,0,0,1,,9,3826,3079,,0,,0,0,0,0,UP,1,1,0,0,0,3599,0,,1,3,1,,9,,2,0,,1,L4OK,,0,0,7,2,0,0,0,,,,,0,0,,,,,270,,,0,1,1,12,,,,Layer4 check passed,,2,3,4,,,,10.0.0.51:80,,http,,,,,,,,
backend_servers,node02,0,0,0,1,,9,3722,3581,,0,,0,0,0,0,UP,1,1,0,0,0,3599,0,,1,3,2,,9,,2,0,,1,L4OK,,0,0,8,0,1,0,0,,,,,0,0,,,,,269,,,0,0,1,14,,,,Layer4 check passed,,2,3,4,,,,10.0.0.52:80,,http,,,,,,,,
backend_servers,BACKEND,0,0,0,1,300,67,27491,736580,0,0,,0,0,0,0,UP,2,2,0,,0,3599,0,,1,3,0,,18,,1,0,,2,,,,0,64,2,1,0,0,,,,67,0,0,0,0,0,0,269,,,0,0,1,26,,,,,,,,,,,,,,http,roundrobin,,,,,,,

# display current session

[root@dlp ~]#
echo "show sess" | socat /var/lib/haproxy/stats stdio
0x55b88aff7bb0: proto=unix_stream src=unix:1 fe=GLOBAL be=<NONE> srv=<none> ts=0a age=0s calls=1 rq[f=40c0c220h,i=0,an=00h,rx=,wx=,ax=] rp[f=80008000h,i=0,an=00h,rx=,wx=,ax=] s0=[7,8h,fd=14,ex=] s1=[7,4018h,fd=-1,ex=] exp=
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