ruansteve

logrus rotatation depends on the OS log rotation, it's too late to rorate when there are 10K session. The log file will grow to 3G

Here is an example of stat dta `# 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, 42ef2f50199945eb85b9c5eae7c3c656,FRONTEND,,,0,0,2000000,0,0,0,0,0,0,,,,,OPEN,,,,,,,,,1,2,0,,,,0,0,0,0,,,,0,0,0,0,0,0,,0,0,0,,,0,0,0,0,,,,,,,,,,,,,,,,,,,,,http,,0,0,0,0,0,0,0,,,0,0,,,,,,, default-42ef2f50199945eb85b9c5eae7c3c656,nic-192.168.4.118,0,0,0,0,,0,0,0,,0,,0,0,0,0,UP,1,1,0,0,0,923,0,,1,3,1,,0,,2,0,,0,L4OK,,0,0,0,0,0,0,0,,,,,0,0,,,,,-1,,,0,0,0,0,,,,Layer4 check passed,,2,2,3,,,,192.168.4.118:8080,192.168.4.118,http,,,,,,,,0,0,0,,,0,,0,0,0,0, ####192.168.4.118 is cookie value default-42ef2f50199945eb85b9c5eae7c3c656,BACKEND,0,0,0,0,200000,0,0,0,0,0,,0,0,0,0,UP,1,1,0,,0,923,0,,1,3,0,,0,,1,0,,0,,,,0,0,0,0,0,0,,,,0,0,0,0,0,0,0,-1,,,0,0,0,0,,,,,,,,,,,,,zstack_cookie,http,roundrobin,,,,,,,0,0,0,0,0,,,0,0,0,0,`

according to the haproxy doc `[cookie](https://www.haproxy.com/documentation/haproxy-configuration-manual/latest/#5.2-cookie) The "[cookie](https://www.haproxy.com/documentation/haproxy-configuration-manual/latest/#)" parameter sets the cookie value assigned to the server to . This value will be checked in incoming requests, and the first...