概述
普通用户安装配置haproxy
- 介绍
- 安装
- 编译安装
- 参数说明
- 修改配置文件
- 启动 haproxy
- 报错了[/data/haproxy/sbin/haproxy.main()] Cannot raise FD limit to 8032, limit is 1024.
- 再次启动Haproxy
- 检查haproxy状态，能访问了
- 外面访问，要开防火墙端口
介绍
HAProxy提供高可用性、负载均衡以及基于TCP和HTTP应用的代理，支持虚拟主机，它是免费、快速并且可靠的一种解决方案。
HAProxy特别适用于那些负载特大的web站点，这些站点通常又需要会话保持或七层处理。
HAProxy运行在当前的硬件上，完全可以支持数以万计的并发连接。并且它的运行模式使得它可以很简单安全的整合进您当前的架构中， 同时可以保护你的web服务器不被暴露到网络上。
安装
下载包
下载地址：http://download.openpkg.org/components/cache/haproxy/haproxy-2.5.0.tar.gz
[code404@NEWCWS-AS06 data]$ tar -xvf haproxy-2.5.0.tar.gz
[code404@NEWCWS-AS06 haproxy-2.5.0]$ cd haproxy-2.5.0
[code404@NEWCWS-AS06 haproxy-2.5.0]$ uname -r
3.10.0-1062.el7.x86_64
系统版本 3.10.0-1062.el7.x86_64
编译安装
参数说明
- TARGET=linux26 #内核版本，使用uname -r查看内核，如：2.6.18-371.el5，此时该参数就为linux26；kernel 大于2.6.28的用： TARGET=linux2628
- ARCH=x86_64 #系统位数
- PREFIX=/data/haprpxy #/usr/local/haprpxy为haprpxy安装路径
[code404@NEWCWS-AS06 haproxy-2.5.0]$ make TARGET=3100 ARCH=x86_64 PREFIX=/data/haproxy
[code404@NEWCWS-AS06 haproxy-2.5.0]$ make install TARGET=3100 ARCH=x86_64 PREFIX=/data/haproxy
install: creating directory ‘/data/haproxy’
install: creating directory ‘/data/haproxy/sbin’
‘haproxy’ -> ‘/data/haproxy/sbin/haproxy’
install: creating directory ‘/data/haproxy/share’
install: creating directory ‘/data/haproxy/share/man’
install: creating directory ‘/data/haproxy/share/man/man1’
‘doc/haproxy.1’ -> ‘/data/haproxy/share/man/man1/haproxy.1’
install: creating directory ‘/data/haproxy/doc’
install: creating directory ‘/data/haproxy/doc/haproxy’
‘doc/configuration.txt’ -> ‘/data/haproxy/doc/haproxy/configuration.txt’
‘doc/management.txt’ -> ‘/data/haproxy/doc/haproxy/management.txt’
‘doc/seamless_reload.txt’ -> ‘/data/haproxy/doc/haproxy/seamless_reload.txt’
‘doc/architecture.txt’ -> ‘/data/haproxy/doc/haproxy/architecture.txt’
‘doc/peers-v2.0.txt’ -> ‘/data/haproxy/doc/haproxy/peers-v2.0.txt’
‘doc/regression-testing.txt’ -> ‘/data/haproxy/doc/haproxy/regression-testing.txt’
‘doc/cookie-options.txt’ -> ‘/data/haproxy/doc/haproxy/cookie-options.txt’
‘doc/lua.txt’ -> ‘/data/haproxy/doc/haproxy/lua.txt’
‘doc/WURFL-device-detection.txt’ -> ‘/data/haproxy/doc/haproxy/WURFL-device-detection.txt’
‘doc/proxy-protocol.txt’ -> ‘/data/haproxy/doc/haproxy/proxy-protocol.txt’
‘doc/linux-syn-cookies.txt’ -> ‘/data/haproxy/doc/haproxy/linux-syn-cookies.txt’
‘doc/SOCKS4.protocol.txt’ -> ‘/data/haproxy/doc/haproxy/SOCKS4.protocol.txt’
‘doc/network-namespaces.txt’ -> ‘/data/haproxy/doc/haproxy/network-namespaces.txt’
‘doc/DeviceAtlas-device-detection.txt’ -> ‘/data/haproxy/doc/haproxy/DeviceAtlas-device-detection.txt’
‘doc/51Degrees-device-detection.txt’ -> ‘/data/haproxy/doc/haproxy/51Degrees-device-detection.txt’
‘doc/netscaler-client-ip-insertion-protocol.txt’ -> ‘/data/haproxy/doc/haproxy/netscaler-client-ip-insertion-protocol.txt’
‘doc/peers.txt’ -> ‘/data/haproxy/doc/haproxy/peers.txt’
‘doc/close-options.txt’ -> ‘/data/haproxy/doc/haproxy/close-options.txt’
‘doc/SPOE.txt’ -> ‘/data/haproxy/doc/haproxy/SPOE.txt’
‘doc/intro.txt’ -> ‘/data/haproxy/doc/haproxy/intro.txt’
修改配置文件
[code404@NEWCWS-AS06 haproxy-2.5.0]$ cd /data/haproxy
[code404@NEWCWS-AS06 haproxy]$ mkdir etc
[code404@NEWCWS-AS06 haproxy]$ vim etc/haproxy.cfg
/data/haproxy/etc/haproxy.cfg 配置
#---------------------------------------------------------------------
# Global settings
#---------------------------------------------------------------------
global
# to have these messages end up in /var/log/haproxy.log you will
log 127.0.0.1 local2
#chroot /data/haproxy/chroot
pidfile /data/haproxy.pid
maxconn 4000
uid 0
gid 0
daemon
# turn on stats unix socket
stats socket /data/haproxy/stats
#---------------------------------------------------------------------
# common defaults that all the 'listen' and 'backend' sections will
# use if not designated in their block
#---------------------------------------------------------------------
defaults
mode http
log global
option httplog
option dontlognull
option http-server-close
# option forwardfor except 127.0.0.0/8
option redispatch
retries 3
timeout http-request 10s
timeout queue 1m
timeout connect 10s
timeout client 1m
timeout server 1m
timeout http-keep-alive 10s
timeout check 10s
maxconn 3000
listen oa_rabbitmq_cluster
bind *:5672
#配置TCP模式
mode tcp
option tcplog
#简单的轮询
balance roundrobin
#rabbitmq集群节点配置 server 每个节点的hostname ip:5672
server OA-MQ1 10.3.152.68:5672 check inter 5000 rise 2 fall 2
server OA-MQ2 10.3.152.69:5672 check inter 5000 rise 2 fall 2
server OA-MQ3 10.3.153.69:5672 check inter 5000 rise 2 fall 2
listen stats
bind *:15672
mode http
option httplog
stats enable
#简单的轮询
balance roundrobin
#rabbitmq集群节点配置 server 每个节点的hostname ip:5672
server OA-MQ1 10.3.152.68:15672 check inter 5000 rise 2 fall 2
server OA-MQ2 10.3.152.69:15672 check inter 5000 rise 2 fall 2
server OA-MQ3 10.3.153.69:15672 check inter 5000 rise 2 fall 2
启动 haproxy
/data/haproxy/sbin/haproxy -f /data/haproxy/etc/haproxy.cfg
报错了[/data/haproxy/sbin/haproxy.main()] Cannot raise FD limit to 8032, limit is 1024.
[code404@NEWCWS-AS06 haproxy]$ /data/haproxy/sbin/haproxy -f /data/haproxy/etc/haproxy.cfg
[NOTICE] (22699) : haproxy version is 2.5.0-f2e0833
[NOTICE] (22699) : path to executable is /data/haproxy/sbin/haproxy
[ALERT] (22699) : [/data/haproxy/sbin/haproxy.main()] Cannot raise FD limit to 8032, limit is 1024.
[code404@NEWCWS-AS06 haproxy]$
这个报错说明，系统没有优化，下面优化一下
vim /etc/security/limits.conf
* soft nofile 65535
* hard nofile 65535
优化完成后，要重启一下服务器
reboot
再次启动Haproxy
[code404@NEWCWS-AS06 haproxy]$ /data/haproxy/sbin/haproxy -f /data/haproxy/etc/haproxy.cfg
[code404@NEWCWS-AS06 haproxy]$ netstat -nptl
(Not all processes could be identified, non-owned process info
will not be shown, you would have to be root to see it all.)
Active Internet connections (only servers)
Proto Recv-Q Send-Q Local Address Foreign Address State PID/Program name
tcp 0 0 0.0.0.0:15672 0.0.0.0:* LISTEN 1887/haproxy
tcp 0 0 127.0.0.1:25 0.0.0.0:* LISTEN -
tcp 0 0 0.0.0.0:5672 0.0.0.0:* LISTEN 1887/haproxy
tcp 0 0 0.0.0.0:22 0.0.0.0:* LISTEN -
tcp6 0 0 ::1:25 :::* LISTEN -
tcp6 0 0 :::22 :::* LISTEN -
检查haproxy状态，能访问了
[code404@NEWCWS-AS06 haproxy]$ curl localhost:15672 -I
HTTP/1.1 200 OK
content-length: 2884
content-security-policy: script-src 'self' 'unsafe-eval' 'unsafe-inline'; object-src 'self'
content-type: text/html
date: Mon, 06 Dec 2021 06:59:07 GMT
etag: "3417244139"
last-modified: Thu, 02 Dec 2021 07:12:23 GMT
server: Cowboy
vary: origin
外面访问，要开防火墙端口
切换到root账号，开放端口
[code404@NEWCWS-AS06 haproxy]$ firewall-cmd --add-port=15672/tcp --add-port=5672/tcp --zone=public --perman
success
[code404@NEWCWS-AS06 haproxy]$ firewall-cmd --reload
success
[code404@NEWCWS-AS06 haproxy]$
CSDN_码404：普通用户安装配置haproxy
https://www.code404.icu/1481.html
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