HAProxy : 統計情報を参照する (コマンド)2024/05/16

	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 reload 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: 2.9.4-4e071ad
Release_date: 2024/01/31
Nbthread: 2
Nbproc: 1
Process_num: 1
Pid: 1457
Uptime: 0d 0h03m57s
Uptime_sec: 237
Memmax_MB: 0
PoolAlloc_MB: 0

.....
.....

Start_time_sec: 1715824155
Tainted: 0
TotalWarnings: 0
MaxconnReached: 0
BootTime_ms: 10
Niced_tasks: 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,agg_server_status,agg_server_check_status,agg_check_status,srid,sess_other,h1sess,h2sess,h3sess,req_other,h1req,h2req,h3req,proto,-,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,h1_open_connections,h1_open_streams,h1_total_connections,h1_total_streams,h1_bytes_in,h1_bytes_out,h1_spliced_bytes_in,h1_spliced_bytes_out,
http-in,FRONTEND,,,0,2,3000,3,3201,19973,0,0,1,,,,,OPEN,,,,,,,,,1,2,0,,,,0,0,0,2,,,,0,2,0,2,0,0,,0,1,4,,,0,0,0,0,,,,,,,,,,,,,,,,,,,,,http,,0,2,3,0,0,0,0,,,0,0,,,,,,,0,,,,,,,,,,0,1,2,0,0,1,3,0,,-,1,1,0,3,0,6,0,0,0,0,0,0,0,0,2,3,0,0,1,0,0,233,0,0,
backend_servers,node01,0,0,0,1,,1,1116,373,,0,,0,0,0,0,UP,1,1,0,0,0,280,0,,1,3,1,,1,,2,0,,1,L4OK,,0,0,1,0,0,0,0,,,,1,0,0,,,,,261,,,0,0,1,6,,,,Layer4 check passed,,2,3,4,,,,10.0.0.51:80,,http,,,,,,,,0,1,0,,,0,,0,0,1,6,0,0,0,0,1,1,,,,0,,,,,,,,,,-,0,0,0,,,,,,,,,,,,,,,,,,,,,,
backend_servers,node02,0,0,0,0,,0,0,0,,0,,0,0,0,0,UP,1,1,0,0,0,280,0,,1,3,2,,0,,2,0,,0,L4OK,,0,0,0,0,0,0,0,,,,0,0,0,,,,,-1,,,0,0,0,0,,,,Layer4 check passed,,2,3,4,,,,10.0.0.52:80,,http,,,,,,,,0,0,0,,,0,,0,0,0,0,0,0,0,0,1,1,,,,0,,,,,,,,,,-,0,0,0,,,,,,,,,,,,,,,,,,,,,,
backend_servers,BACKEND,0,0,0,1,300,3,3201,19973,0,0,,0,0,0,0,UP,2,2,0,,0,280,0,,1,3,0,,1,,1,0,,1,,,,0,2,0,1,0,0,,,,3,1,0,0,0,0,0,232,,,0,0,1,3,,,,,,,,,,,,,,http,roundrobin,,,,,,,0,1,0,0,0,,,0,0,1,6,0,,,,,2,0,0,0,,,,,,,,,,,-,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,1,1,405,1202,0,0,

# 現在のセッションを表示

[root@dlp ~]#

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

0x557788101d90: proto=unix_stream src=unix:1 fe=GLOBAL be=<NONE> srv=<none> ts=00 epoch=0 age=0s calls=1 rate=0 cpu=0 lat=0 rq[f=808000h,i=0,an=00h,ax=] rp[f=80008000h,i=0,an=00h,ax=] scf=[8,600h,fd=14,rex=,wex=] scb=[8,1h,fd=-1,rex=,wex=] exp=10s rc=0 c_exp=