HAProxy : Refer to the Statistics#2

HAProxy : Refer to the Statistics#2 2015/02/18

	Configure HAProxy to see HAProxy's Statistics with commands.
[1]	Install some packages.

[root@dlp ~]#  yum -y install socat

[2]	Configure HAProxy.

[root@dlp ~]#  vi /etc/haproxy/haproxy.cfg # add follows in the "global" section global       # binds UNIX sockets 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: 1.5.2 Release_date: 2014/07/12 Nbproc: 1 Process_num: 1 Pid: 1953 ... ... Idle_pct: 100 node: dlp.server.world description: # display stas with CSV [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,..... http-in,FRONTEND,,,0,1,2000,1,0,187,0,0,1,,,,,OPEN,,,,,,,,,1,2,0,,,,0,0,0,1,,,,0,0,..... backend_servers,www01,0,0,0,0,,0,0,0,,0,,0,0,0,0,UP,1,1,0,0,0,67,0,,1,3,1,,0,,2,0,,..... backend_servers,www02,0,0,0,0,,0,0,0,,0,,0,0,0,0,UP,1,1,0,0,0,67,0,,1,3,2,,0,,2,0,,..... backend_servers,BACKEND,0,0,0,0,200,0,0,0,0,0,,0,0,0,0,UP,2,2,0,,0,67,0,,1,3,0,,0,,..... # display current session [root@dlp ~]#  echo "show sess" | socat /var/lib/haproxy/stats stdio 0x7fbc09349150: proto=tcpv4 src=10.0.0.18:55987 fe=http-in be=<NONE> srv=<none> ts=08 age=4s calls=8 rq[f=400000h,i=0,an=1ch,rx=26s,wx=,ax=] rp[f=048200h,i=0,an=00h,rx=,wx=,ax=] s0=[7,8h,fd=1,ex=] s1=[0,0h,fd=2,ex=] exp=26s 0x7fbc09351d80: proto=unix_stream src=unix:1 fe=GLOBAL be=<NONE> srv=<none> ts=0b age=0s calls=1 rq[f=c08200h,i=0,an=00h,rx=10s,wx=,ax=] rp[f=008002h,i=0,an=00h,rx=,wx=,ax=] s0=[7,8h,fd=3,ex=] s1=[7,8h,fd=-1,ex=] exp= # for other operations # enter the interactive mode [root@dlp ~]#  socat readline /var/lib/haproxy/stats  prompt # show help >  help Unknown command. Please enter one of the following commands only : clear counters : clear max statistics counters (add 'all' for all counters) clear table : remove an entry from a table help : this message prompt : toggle interactive mode with prompt quit : disconnect show info : report information about the running process show pools : report information about the memory pools usage show stat : report counters for each proxy and server show errors : report last request and response errors for each proxy show sess [id] : report the list of current sessions or dump this session show table [id]: report table usage stats or dump this table's contents get weight : report a server's current weight set weight : change a server's weight set server : change a server's state or weight set table [id] : update or create a table entry's data set timeout : change a timeout setting set maxconn : change a maxconn setting set rate-limit : change a rate limiting value disable : put a server or frontend in maintenance mode enable : re-enable a server or frontend which is in maintenance mode shutdown : kill a session or a frontend (eg:to release listening ports) show acl [id] : report avalaible acls or dump an acl's contents get acl : reports the patterns matching a sample for an ACL add acl : add acl entry del acl : delete acl entry clear acl <id> : clear the content of this acl show map [id] : report avalaible maps or dump a map's contents get map : reports the keys and values matching a sample for a map set map : modify map entry add map : add map entry del map : delete map entry clear map <id> : clear the content of this map set ssl <stmt> : set statement for ssl # exit from interactive mode >  quit