#mysql读写分离测试
环境centos 7.4 ,docker 17.12 ,docker-compose
mysql 5.7 主从
mycat 1.6 读写分离
maxscale 2.2.4 读写分离
#################################
#下载docker-compose文件
git clone https://gitee.com/almi/docker-compose.git
cd mysql
# 构建mycat、maxscale镜像
#启动
docker-compose up -d
#查看
docker-compose ps
# Name Command State Ports
# -----------------------------------------------------------------------------------------------
# db-m1 docker-entrypoint.sh mysqld Up 0.0.0.0:3300->3306/tcp
# db-s1 docker-entrypoint.sh mysqld Up 0.0.0.0:3301->3306/tcp
# db-s2 docker-entrypoint.sh mysqld Up 0.0.0.0:3302->3306/tcp
# maxscale /maxscale Up 0.0.0.0:4006->4006/tcp, 0.0.0.0:6603->6603/tcp
# mycat ./mycat console Up 0.0.0.0:8066->8066/tcp, 0.0.0.0:9066->9066/tcp
# phpadmin /run.sh phpmyadmin Up 0.0.0.0:336->80/tcp, 9000/tcp
#查看日志#
docker logs db-m1
docker logs db-s1
docker logs db-s2
docker logs mycat
# 或者这样
docker-compose logs maxscale
#################################
# mysql主从配置
#master设置同步账户slave@mypwd
docker-compose exec db-m1 mysql -uroot -pmytest -e "
create user slave;
grant replication slave on *.* to 'slave'@'172.18.18.%' identified by 'mypwd';
flush tables with read lock;
show master status;
"
#查看master-bin 和 id
# +-------------------+----------+
# | File | Position |
# +-------------------+----------+
# | master-bin.000003 | 647 |
# +-------------------+----------+
#slave配置连接master
#使用刚查询的File和Position参数
# db-s1设置同步
docker-compose exec db-s1 mysql -uroot -pmytest -e "
change master to master_host='172.18.18.10',
master_port=3306,
master_user='slave',
master_password='mypwd',
master_log_file='master-bin.000003',
master_log_pos=647;
start slave;
"
#查看同步
docker-compose exec db-s1
mysql -uroot -pmytest -e "show slave statusG;" | grep Running
#成功标示如下：
# Slave_IO_Running: Yes
# Slave_SQL_Running: Yes
#db-s2同上
#在master创库创表，在salve查看
#################################
#安装mysql客户端
yum install mariadb -y
#################################
# mycat 读写分离测试
#登录mycat代理端口
mysql -h 172.18.18.1 -P 8066 -uroot -p123 -e "select @@hostname;" | grep db
#批量查询10次
for i in `seq 1 10`;do mysql -h 172.18.18.1 -P 8066 -uroot -p123 -e "select @@hostname;" | grep db;done
# 多次查询，会分别显示不同的hostname,查询基本轮询了
#查询database只能看到testdb
#因为配置文件只设置了这个库
#其它测试
#在master创建testdb数据库
docker-compose exec db-m1 mysql -uroot -pmytest -e "create database testdb;show databases;"
#登录mycat创建库testdb表name
mysql -h 172.18.18.1 -P 8066 -uroot -p123
#
create database testdb;
use testdb;
create table name
(
sid varchar(20),
sname varchar(50),
primary key (Sid)
) ENGINE=InnoDB DEFAULT CHARSET=utf8;
show tables;
#插入数据
use testdb;
insert into `name`(sid,sname) values ('001','张三');
insert into `name`(sid,sname) values ('002','李四');
select * from testdb.name;
#在db-s1 db-s2分别插入不同数据，在登录mycat查询
#################################
#maxscale读写分离测试
#登录MySQL每个节点,创建监控、路由用户
# 略，本实例直接使用root用户
#登录maxscale代理查询mysql
mysql -uroot -pmytest -h 172.18.18.1 -P4006 -e "select @@hostname;"
#查询10次
for i in `seq 1 10`;do mysql -uroot -pmytest -h 172.18.18.1 -P4006 -e "select @@hostname;" | grep db;done
# 本次查询，全部是db-s1节点，关闭s1节点后才是s2节点
# 由于使用最新版的，不知道是配置问题还是bug
#登录maxcale管理查看状态
mysql -h 172.18.18.1 -P6603 -uadmin -pmariadb
#查询如下，更多命令查看 help
# MaxScale> list servers
# Servers.
# -------------------+-----------------+-------+-------------+--------------------
# Server | Address | Port | Connections | Status
# -------------------+-----------------+-------+-------------+--------------------
# server1 | 172.18.18.10 | 3306 | 0 | Master, Running
# server2 | 172.18.18.11 | 3306 | 0 | Slave, Running
# server3 | 172.18.18.12 | 3306 | 0 | Slave, Running
# -------------------+-----------------+-------+-------------+--------------------
# MaxScale> list services
# Services.
# --------------------------+-------------------+--------+----------------+-------------------
# Service Name | Router Module | #Users | Total Sessions | Backend databases
# --------------------------+-------------------+--------+----------------+-------------------
# Read-Write-Service | readwritesplit | 1 | 22 | server1, server2, server3
# MaxAdmin-Service | cli | 2 | 3 |
# --------------------------+-------------------+--------+----------------+-------------------
#other
#配置里使用加密密码
#创建加密文件
maxkeys /var/lib/maxscale/.secrets
#生成加密后的密码123
maxpasswd /var/lib/maxscale/ 123