nginx tcp负载均衡的具体实现

yum install -y mariadb-server
systemctl start mariadb
systemctl enable mariadb
ss -ntl

MariaDB [(none)]> create database wordpress;
Query OK, 1 row affected (0.00 sec)

MariaDB [(none)]> grant all privileges on wordpress .* to "wordpress"@"192.168.33.%" identified by "123456";
Query OK, 0 rows affected (0.00 sec)

MariaDB [(none)]> flush privileges;
Query OK, 0 rows affected (0.00 sec)

vim /apps/nginx/conf/nginx.conf
}
stream {
    upstream mysql_server {
      server 192.168.33.171:3306 max_fails=3 fail_timeout=30s;
 }
    server {
      listen 192.168.33.180:3306;
      proxy_connect_timeout 30s;
      proxy_timeout 300s;
      proxy_pass mysql_server;
 }
}

wget https://download.redis.io/releases/redis-6.0.6.tar.gz
tar -zxvf redis-6.0.6.tar.gz 
cd redis-6.0.6
make
cd src/
redis-server
ss -ntl

vim /root/redis-4.0.14/redis.conf
修改为bind 0.0.0.0

stream { 
    upstream mysql_server {
      server 192.168.33.171:3306 max_fails=3 fail_timeout=30s; 
      server 192.168.33.149:6379 max_fails=3 fail_timeout=30s;
 }
    server {
      listen 192.168.33.180:6379;
      proxy_connect_timeout 30s;
      proxy_timeout 300s;
      proxy_pass mysql_server;}
    server {
      listen 192.168.33.180:3306;
      proxy_connect_timeout 30s;
      proxy_timeout 300s;
      proxy_pass mysql_server;
 }
}