Comment 3 for bug 1544861

haproxy-1.5.14-3.el7.x86_64 and LBaaS v1 API．

I set connection_limit to 50000.

# neutron lb-vip-show 75a12b66-9d2a-4a68-962e-ec9db8c3e2fb
+---------------------+-----------------------------------------------------+
| Field | Value |
+---------------------+-----------------------------------------------------+
| address | 192.168.10.20 |
| admin_state_up | True |
| connection_limit | 50000 |
| description | ossvert lb vip |
| id | 75a12b66-9d2a-4a68-962e-ec9db8c3e2fb |
| name | ossvert-vip |
| pool_id | fb8ba6e3-71a4-47dd-8a83-2978bafea6e7 |
| port_id | 0dab638b-e03b-4598-8285-c094938b1a93 |
| protocol | HTTP |
| protocol_port | 80 |
| session_persistence | {"cookie_name": "JSESSIONID", "type": "APP_COOKIE"} |
| status | ACTIVE |
| status_description | |
| subnet_id | 7845c833-beef-405c-a575-10bf21530992 |
| tenant_id | c2a36e1cdf654de58673cfcfcaa53081 |
+---------------------+-----------------------------------------------------+

As far as I checked haproxy configuration with socat, it did not affect haproxy configuration.

# socat readline /var/lib/neutron/lbaas/fb8ba6e3-71a4-47dd-8a83-2978bafea6e7/sock
show info
Name: HAProxy
Version: 1.5.14
Release_date: 2015/07/02
Nbproc: 1
Process_num: 1
Pid: 23847
Uptime: 0d 0h41m58s
Uptime_sec: 2518
Memmax_MB: 0
Ulimit-n: 4033
Maxsock: 4033
Maxconn: 2000
Hard_maxconn: 2000
CurrConns: 0
CumConns: 1803
CumReq: 76741
MaxSslConns: 0
CurrSslConns: 0
CumSslConns: 0
Maxpipes: 0
PipesUsed: 0
PipesFree: 0
ConnRate: 0
ConnRateLimit: 0
MaxConnRate: 10
SessRate: 0
SessRateLimit: 0
MaxSessRate: 10
SslRate: 0
SslRateLimit: 0
MaxSslRate: 0
SslFrontendKeyRate: 0
SslFrontendMaxKeyRate: 0
SslFrontendSessionReuse_pct: 0
SslBackendKeyRate: 0
SslBackendMaxKeyRate: 0
SslCacheLookups: 0
SslCacheMisses: 0
CompressBpsIn: 0
CompressBpsOut: 0
CompressBpsRateLim: 0
ZlibMemUsage: 0
MaxZlibMemUsage: 0
Tasks: 8
Run_queue: 1
Idle_pct: 100
node: network
description: