redis集群+haproxy代理+keepalived高可用部署-想学吗 我教你啊
redis集群部署
服务架构
所有节点操作
1.关闭防⽕墙、修改主机名、配置本地解析
2.修改系统参数
[[email protected] ~]# cat >> /etc/security/limits.conf << EOF
> * soft nofile 102400
> * hard nofile 102400
> EOF
3.环境设置：
#设置TCP队列监听队列⼤⼩
[[email protected] ~]
# echo "net.core.somaxconn = 32767" >> /etc/sysctl.conf
#OOM
相关：
vm.overcommit_memory
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# echo "vm.overcommit_memory=1" >> /etc/sysctl.conf
#
查看修改的内容
[[email protected] ~]
# sysctl -p
#
开启内核的
“Transparent Huge Pages (THP)”
特性
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# echo never > /sys/kernel/mm/transparent_hugepage/enabled
#
临时⽣效
[[email protected] ~]
# echo "echo never >
/sys/kernel/mm/transparent_hugepage/enabled" >> /etc/rc.local
4.开始部署redis
安装
gcc
包
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# yum -y install gcc glibc glibc-kernheaders glibc-common
glibc-devel make
升级
gcc
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# yum -y install devtoolset-9-gcc devtoolset-9-gcc-c++
devtoolset-9-binutils
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# yum -y install centos-release-scl
[[email protected] ~]
# scl enable devtoolset-9 bash
设置为永久升级
[[email protected] ~]
# echo "source /opt/rh/devtoolset-9/enable" >>/etc/profile
redis安装
[[email protected] ~]
# cd /usr/local/src
[[email protected] src]
# wget http://download.redis.io/releases/redis-
6.0.5.tar.gz
[[email protected] src]
# tar -xzf redis-6.0.5.tar.gz
[[email protected] src]
# cd redis-6.0.5/
[[email protected] redis-6.0.5]
# make
[[email protected] redis-6.0.5]
# make install PREFIX=/usr/local/redis-cluster
5.创建实例⽬录
[[email protected] ~]
# mkdir -p /redis/{6001,6002}/{conf,data,log}
[[email protected] ~]
# cd /redis/6001/conf/
[[email protected] conf]
# cat >> redis.conf << EOF
bind 0.0.0.0
protected-mode no
port 6001
daemonize no
dir /redis/6001/data
cluster-enabled yes
cluster-config-file /redis/6001/conf/nodes.conf
cluster-node-timeout 5000
appendonly yes
daemonize yes
pidfile /redis/6001/redis.pid
logfile /redis/6001/log/redis.log
EOF
6.配置redis服务6002配置⽂件
[[email protected] conf]
# sed 's/6001/6002/g' redis.conf >
/redis/6002/conf/redis.conf
7.编辑启动redis脚本
[[email protected] ~]
# cat >/usr/local/redis-cluster/start-redis-cluster.sh<<-
EOF
#!/bin/bash
REDIS_HOME
=
/usr/local/redis-cluster
REDIS_CONF
=
/redis
\$REDIS_HOME/bin/redis-server \$REDIS_CONF/6001/conf/redis.conf
\$REDIS_HOME/bin/redis-server \$REDIS_CONF/6002/conf/redis.conf
EOF
[[email protected] ~]
# chmod +x /usr/local/redis-cluster/start-redis-cluster.sh
8.启动redis并查看
[[email protected] ~]
# bash /usr/local/redis-cluster/start-redis-cluster.sh
[[email protected] ~]
# ss -anput | grep redis
其他节点以此部署
haproxy部署
部署主从两台haproxy服务器
安装haproxy
[[email protected] ~]
# yum install -y haproxy.x86_64
设置haproxy配置⽂件并重启服务
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# cp -rf /etc/haproxy/haproxy.cfg{,.bak}
[[email protected] ~]
# vim /etc/haproxy/haproxy.cfg
[[email protected] ~]
# systemctl restart haproxy.service
Haproxy-1配置⽂件内容:
global
log 127.0.0.1 local1
chroot /var/lib/haproxy
pidfile /var/run/haproxy.pid
maxconn 4000
user haproxy
group haproxy
daemon
defaults
mode http
log global
option dontlognull
retries 3
maxconn 3000
contimeout 50000
clitimeout 50000
srvtimeout 50000
listen stats
bind *
:
1314
stats enable
stats hide-version
stats uri /haproxystats
stats realm Haproxy\ stats
stats auth admin
:
admin
stats admin if TRUE
frontend web
option httplog
option http-server-close
option forwardfor except 127.0.0.0/8
#option redispatch
mode http
bind *
:
80
default_backend httpservers
backend httpservers
balance roundrobin
server redis01 172.16.124.155
:
6001 check maxconn 2000
server redis01 172.16.124.155
:
6002 check maxconn 2000
server redis02 172.16.124.156
:
6003 check maxconn 2000
server redis02 172.16.124.156
:
6004 check maxconn 2000
server redis03 172.16.124.157
:
6005 check maxconn 2000
server redis03 172.16.124.157
:
6006 check maxconn 2000
Haproxy02配置⽂件内容:
global
log 127.0.0.1 local2
chroot /var/lib/haproxy
pidfile /var/run/haproxy.pid
maxconn 4000
user haproxy
group haproxy
daemon
defaults
mode http
log global
option dontlognull
retries 3
maxconn 3000
contimeout 50000
clitimeout 50000
srvtimeout 50000
listen stats
bind *
:
1314
stats enable
stats hide-version
stats uri /haproxystats
stats realm Haproxy\ stats
stats auth admin
:
admin
stats admin if TRUE
frontend web
option httplog
option http-server-close
option forwardfor except 127.0.0.0/8
#option redispatch
mode http
bind *
:
80
default_backend httpservers
backend httpservers
balance roundrobin
server redis01 172.16.124.155
:
6001 check maxconn 2000
server redis01 172.16.124.155
:
6002 check maxconn 2000
server redis02 172.16.124.156
:
6003 check maxconn 2000
server redis02 172.16.124.156
:
6004 check maxconn 2000
server redis03 172.16.124.157
:
6005 check maxconn 2000
server redis03 172.16.124.157
:
6006 check maxconn 2000
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keepalived部署
部署主从两台keepalived服务
安装keepalived
[[email protected] ~]
# yum -y install keepalived
配置keepalived配置⽂件并重启服务
[[email protected] ~]
# cp /etc/keepalived/keepalived.conf{,.bak}
[[email protected] ~]
# vim /etc/keepalived/keepalived.conf
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# systemctl restart keepalived.service
#MASTER配置文件内容:
! Configuration File for keepalived
global_defs {
router_id director1
}
vrrp_instance VI_1 {
state MASTER
nopreempt
interface eth0
virtual_router_id 80
priority 100
advert_int 1
authentication {
auth_type PASS
auth_pass 1111
}
virtual_ipaddress {
172.16.124.200
}
}
#BACKUP配置文件内容:
! Configuration File for keepalived
global_defs {
router_id director1
}
vrrp_instance VI_1 {
state BACKUP
nopreempt
interface eth0
virtual_router_id 80
priority 100
advert_int 1
authentication {
auth_type PASS
auth_pass 1111
}
virtual_ipaddress {
172.16.124.200
}
}
查看IP地址
[[email protected] ~]
# ip a
测试
测试访问vip