pacemaker haproxy 实现高可用 均衡负载
Pacemaker+haproxy
实现高可用与均衡负载
[email protected] examples]# cd
[[email protected] ~]# ls
haproxy-1.6.11 nginx-1.10.1.tar.gz nginx-sticky-module-ng
haproxy-1.6.11.tar.gz nginx-1.14.0 nginx-sticky-module-ng.tar.gz
nginx-1.10.1 nginx-1.14.0.tar.gz rpmbuild
[[email protected] ~]# mv haproxy-1.6.11.tar.gz rpmbuild/SOURCES/
[[email protected] examples]# rpmbuild -bb haproxy.spec
3、安装 haproxy
[[email protected] examples]# cd /root/rpmbuild/RPMS/x86_64/
[[email protected] x86_64]# ls
haproxy-1.6.11-1.x86_64.rpm
[[email protected] x86_64]# rpm -ivh haproxy-1.6.11-1.x86_64.rpm
4、修改配置文件
[[email protected] x86_64]# cd -
/root/haproxy-1.6.11/examples
[[email protected] examples]# ls
acl-content-sw.cfg debug2ansi haproxy.spec ssl.cfg
auth.cfg debug2html haproxy.vim stats_haproxy.sh
check debugfind init.haproxy transparent_proxy.cfg
check.conf errorfiles option-http_proxy.cfg
content-sw-sample.cfg haproxy.init seamless_reload.txt
[[email protected] examples]# cp content-sw-sample.cfg /etc/haproxy/haproxy.cfg
[[email protected] examples]# cd /etc/haproxy/
[[email protected] haproxy]# vim haproxy.cfg
10 global
11 maxconn 65535 ##最大链接
12 stats socket /var/run/haproxy.stat mode 600 level admin
13 log 127.0.0.1 local0
14 uid 200 ##指定用户、组
15 gid 200
16 chroot /var/empty ##
17 daemon
18 ####注意：局部改变全局，即局部变量优先
19 defaults
20 mode http ##http服务
21 log global ##日志格式
22 option httplog
23 option dontlognull
24 monitor-uri /monitoruri ##前端健康检查
25 maxconn 8000 ##默认最大链接，覆盖global
26 timeout client 30s ##客户端中断时间 30s
27 stats uri /admin/stats ##后端健康检查
28 retries 2 ##再次链接时间，2s
29 option redispatch
30 timeout connect 5s ##链接断开，5s
31 timeout server 30s ##服务断开，30s
34 # The public 'www' address in the DMZ
35 frontend public
36 bind *:80
37 # use_backend static if { hdr_beg(host) -i img }
38 # use_backend static if { path_beg /img /css }
39 default_backend dynamic
40
41 # the application servers go here
42 backend dynamic
43 balance roundrobin
44 server web1 172.25.12.2:80 check inter 1000
45 server web2 172.25.12.3:80 check inter 1000
5、修改限制文件，建立用户、组
[[email protected] haproxy]# vim /etc/security/limits.conf
haproxy - nofile 65536
[[email protected] haproxy]# groupadd -g 200 haproxy
[[email protected] haproxy]# useradd -u 200 -g 200 -M -s /sbin/nologin haproxy
[[email protected] haproxy]# /etc/init.d/haproxy start
Starting haproxy: [ OK ]
Server3和server5开启httpd实现均衡负载
物理主机网页测试：
172.25.77.4/admin/stats ##后端监控检查
172.25.77.4/monitoruri ##检测haproxy服务是否ok
第一阶段
第二阶段 pacemaker
[[email protected] ~]# yum install -y corosync pacemaker
[[email protected] ~]# cd /etc/corosync/
[[email protected] corosync]# cp corosync.conf.example corosync.conf
[[email protected] corosync]# vim corosync.conf
4 totem {
5 version: 2
6 secauth: off
7 threads: 0
8 interface {
9 ringnumber: 0
10 bindnetaddr: 172.25.12.0
11 mcastaddr: 226.94.1.12
12 mcastport: 5405
13 ttl: 1
14 }
15 }
35 service {
36 name: pacemaker
37 ver: 1
38 }
把ver：1 修改为1
[[email protected] corosync]# /etc/init.d/pacemaker start
[[email protected] corosync]# /etc/init.d/corosync start
手动开启 先启动/pacemaker再启动/corosync
[email protected] corosync]# scp corosync.conf server6:/etc/corosync/
[email protected]'s password:
corosync.conf 100% 483 0.5KB/s 00:00
[[email protected] corosync]# /etc/init.d/corosync start
Starting Corosync Cluster Engine (corosync): [ OK ]
[[email protected] ~]# yum install crmsh-1.2.6-0.rc2.2.1.x86_64.rpm pssh-2.3.1-2.1.x86_64.rpm -y
##注意：当redhat集群被占用时，
[[email protected]~]# chkconfig modclusterd off
[[email protected] ~]# chkconfig cman off
[[email protected] ~]# chkconfig rgmanager off
[[email protected] ~]# chkconfig iscsi off
[[email protected]~]# lvmconf --disable-cluster
[[email protected] ~]# chkconfig clvmd off
[[email protected] ~]# chkconfig ricci off
Server4：
[[email protected] ~]# cd rpmbuild/
[[email protected] RPMS]# cd x86_64/
[[email protected] x86_64]# scp haproxy-1.6.11-1.x86_64.rpm server1:/root/
[email protected]'s password:
haproxy-1.6.11-1.x86_64.rpm 100% 768KB 768.2KB/s 00:00
[[email protected] ~]# cd /etc/haproxy/
[[email protected] haproxy]# scp haproxy.cfg server6:/etc/haproxy/
Server6：
[[email protected] ~]# rpm -ivh haproxy-1.6.11-1.x86_64.rpm
[[email protected] corosync]# crm
crm(live)# configure
crm(live)configure# property stonith-enabled=false
crm(live)configure# commit
crm(live)configure# primitive vip ocf:heartbeat:IPaddr2 params ip=172.25.12.100 cidr_netmask=32 op monitor interval=1min
crm(live)configure# commit
crm(live)configure# property no-quorum-policy=ignore
crm(live)configure# commit
crm(live)configure# primitive haproxy lsb:haproxy op monitor interval=1min
crm(live)configure# commit
crm(live)configure# group hagroup vip haproxy
crm(live)configure# commit
crm(live)configure# property stonith-enabled=true
crm(live)configure# primitive vmfence stonith:fence_xvm params pcmk_host_map="server6:vm6;server4:vm4" op monitor interval=1min
crm(live)configure# commit
crm(live)configure# show
node server1
node server4
node server6
primitive haproxy lsb:haproxy \
op monitor interval="1min"
primitive nginx lsb:nginx \
op monitor interval="30s"
primitive vip ocf:heartbeat:IPaddr2 \
params ip="172.25.77.100" cidr_netmask="24" \
op monitor interval="1min"
primitive vmfence stonith:fence_
group hagroup vip haproxy
group nginxgroup nginx
property $id="cib-bootstrap-options" \
dc-version="1.1.10-14.el6-368c726" \
cluster-infrastructure="cman" \
expected-quorum-votes="2" \
no-quorum-policy="ignore" \
stonith-enabled="true"