HAProxy : 統計情報を参照する (コマンド)2022/05/27

	HAProxy サーバーの統計情報がコマンドで参照できるように設定します。
[1]	必要なパッケージをインストールしておきます。

[root@dlp ~]#

dnf -y install socat

[2]	HAProxy の設定です。

[root@dlp ~]#

vi /etc/haproxy/haproxy.cfg

# 設定確認
# [global] セクション内に以下の設定があれば OK

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

[root@dlp ~]#

systemctl restart haproxy

[3]	以上の設定の後、以下のようにして参照可能です。

# 現在の状態を表示

[root@dlp ~]#

echo "show info" | socat /var/lib/haproxy/stats stdio

Name: HAProxy
Version: 2.4.8-d1f8d41
Release_date: 2021/11/03
Nbthread: 2
Nbproc: 1
Process_num: 1
Pid: 1858
Uptime: 0d 0h03m59s
Uptime_sec: 239
Memmax_MB: 0

.....
.....

DebugCommandsIssued: 0
CumRecvLogs: 0
Build info: 2.4.8-d1f8d41
Memmax_bytes: 0
PoolAlloc_bytes: 108480
PoolUsed_bytes: 108480
Start_time_sec: 1653639754
Tainted: 0

# 統計情報を CSV 形式で出力

[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,wrew,connect,reuse,cache_lookups,cache_hits,srv_icur,src_ilim,qtime_max,ctime_max,rtime_max,ttime_max,eint,idle_conn_cur,safe_conn_cur,used_conn_cur,need_conn_est,uweight,-,ssl_sess,ssl_reused_sess,ssl_failed_handshake,h2_headers_rcvd,h2_data_rcvd,h2_settings_rcvd,h2_rst_stream_rcvd,h2_goaway_rcvd,h2_detected_conn_protocol_errors,h2_detected_strm_protocol_errors,h2_rst_stream_resp,h2_goaway_resp,h2_open_connections,h2_backend_open_streams,h2_total_connections,h2_backend_total_streams,
http-in,FRONTEND,,,0,2,3000,6,4592,26801,0,0,3,,,,,OPEN,,,,,,,,,1,2,0,,,,0,0,0,2,,,,0,2,2,6,0,0,,0,2,10,,,0,0,0,0,,,,,,,,,,,,,,,,,,,,,http,,0,2,6,0,0,0,0,,,0,0,,,,,,,0,,,,,,-,4,2,0,0,0,0,0,0,0,0,0,0,0,0,0,0,
backend_servers,node01,0,0,0,1,,3,2028,759,,0,,0,0,0,0,UP,1,1,0,0,0,286,0,,1,3,1,,3,,2,0,,1,L4OK,,0,0,1,2,0,0,0,,,,3,0,0,,,,,13,,,0,1,1,663,,,,Layer4 check passed,,2,3,4,,,,10.0.0.51:80,,http,,,,,,,,0,3,0,,,0,,0,1,1,1386,0,0,0,0,1,1,-,0,0,0,,,,,,,,,,,,,,
backend_servers,node02,0,0,0,1,,2,1249,9082,,0,,0,0,0,0,UP,1,1,0,0,0,286,0,,1,3,2,,2,,2,0,,1,L4OK,,0,0,0,0,2,0,0,,,,2,0,0,,,,,13,,,0,1,1,386,,,,Layer4 check passed,,2,3,4,,,,10.0.0.52:80,,http,,,,,,,,0,2,0,,,0,,0,1,1,745,0,0,0,0,1,1,-,0,0,0,,,,,,,,,,,,,,
backend_servers,BACKEND,0,0,0,1,300,7,4592,26801,0,0,,0,0,0,0,UP,2,2,0,,0,286,0,,1,3,0,,5,,1,0,,2,,,,0,2,2,3,0,0,,,,7,0,1,0,0,0,0,13,,,0,1,1,395,,,,,,,,,,,,,,http,roundrobin,,,,,,,0,5,0,0,0,,,0,1,1,1386,0,,,,,2,-,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,

# 現在のセッションを表示

[root@dlp ~]#

echo "show sess" | socat /var/lib/haproxy/stats stdio

0x7f932c0359f0: proto=unix_stream src=unix:1 fe=GLOBAL be=<NONE> srv=<none> ts=00 epoch=0 age=0s calls=1 rate=1 cpu=0 lat=0 rq[f=c08000h,i=0,an=00h,rx=,wx=,ax=] rp[f=80008000h,i=0,an=00h,rx=,wx=,ax=] s0=[8,240008h,fd=15,ex=] s1=[8,204018h,fd=-1,ex=] exp=