On 07.01.20 07:27, Shah, Aman wrote:
Hello all,

We have an haproxy server and we are getting some odd values. Value of slim is coming as 1 for most of the domains. The value is nowhere being set and maxconn is being set to 2000. Can you please help me to figure out what could be the actual reason behind the slim value coming as 1. Do we have to manually enforce it? How slim value is actually being set ?

Here's the full output from haproxy -vv:

root@haproxy01:~# haproxy -vv
HA-Proxy version 1.8.8-1ubuntu0.1 2018/05/29
Copyright 2000-2018 Willy Tarreau <wi...@haproxy.org>

Build options :
   TARGET  = linux2628
   CPU     = generic
   CC      = gcc
  CFLAGS  = -g -O2 -fdebug-prefix-map=/build/haproxy-VmwZ9X/haproxy-1.8.8=. -fstack-protector-strong -Wformat -Werror=format-security -Wdate-time -D_FORTIFY_SOURCE=2   OPTIONS = USE_GETADDRINFO=1 USE_ZLIB=1 USE_REGPARM=1 USE_OPENSSL=1 USE_LUA=1 USE_SYSTEMD=1 USE_PCRE=1 USE_PCRE_JIT=1 USE_NS=1

Default settings :
   maxconn = 2000, bufsize = 16384, maxrewrite = 1024, maxpollevents = 200

Built with OpenSSL version : OpenSSL 1.1.0g  2 Nov 2017
Running on OpenSSL version : OpenSSL 1.1.0g  2 Nov 2017
OpenSSL library supports TLS extensions : yes
OpenSSL library supports SNI : yes
OpenSSL library supports : TLSv1.0 TLSv1.1 TLSv1.2
Built with Lua version : Lua 5.3.3
Built with transparent proxy support using: IP_TRANSPARENT IPV6_TRANSPARENT IP_FREEBIND
Encrypted password support via crypt(3): yes
Built with multi-threading support.
Built with PCRE version : 8.39 2016-06-14
Running on PCRE version : 8.39 2016-06-14
PCRE library supports JIT : yes
Built with zlib version : 1.2.11
Running on zlib version : 1.2.11
Compression algorithms supported : identity("identity"), deflate("deflate"), raw-deflate("deflate"), gzip("gzip")
Built with network namespace support.

Available polling systems :
       epoll : pref=300,  test result OK
        poll : pref=200,  test result OK
      select : pref=150,  test result OK
Total: 3 (3 usable), will use epoll.

Available filters :
         [SPOE] spoe
         [COMP] compression
         [TRACE] trace

And also one of the sample output of haproxy stats for the reference:

# haproxyctl show stat
# 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,


Have you set anywhere maxconn or fullconn because this are the parameters which are used for slim.


What's your output of `show info`?
Can you share a minimal config.



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