云原生(mysql组复制、mysql路由)

实验简介

一、实验背景与核心目标

MySQL 组复制（MGR）是 MySQL 官方提供的高可用集群方案，支持多主 / 单主模式，能实现数据同步、故障自动切换；MySQL Router 是轻量级路由中间件，可实现读写分离、负载均衡，对外提供统一的访问入口。本次实验的核心目标：

搭建 3 节点的 MySQL 组复制集群（多主模式），实现节点间数据实时同步；
部署 MySQL Router，对集群做读写分离和负载均衡，简化客户端访问。

二、实验一：MySQL 组复制（MGR）部署

1. 前置准备：MySQL 节点还原

为保证集群环境纯净，先对所有 MySQL 节点做初始化还原，提供了两种方式：

Ansible 自动化还原：通过 Ansible 批量操作 3 个 MySQL 节点（172.25.254.10/20/30），包括停止 MySQL 服务、清空数据目录、重建目录并重新初始化 MySQL，同时配置 Ansible 免密提权，提升批量操作效率；
手动还原 ：逐节点停止 MySQL、清空数据、配置基础 my.cnf（如 server-id、GTID、binlog 格式等核心参数），再初始化 MySQL，适合小规模环境或自动化脚本调试。

2. 组复制核心配置

（1）节点基础配置

所有节点统一配置：

主机名解析（/etc/hosts），保证节点间互通；
修改 my.cnf，启用组复制插件、配置组名称（group_replication_group_name）、节点通信地址（group_replication_local_address）、集群种子节点（group_replication_group_seeds），并开启多主模式（group_replication_single_primary_mode=OFF）。

（2）集群初始化（分节点操作）

首节点（mysql-node1） ：初始化后登录 MySQL，创建组复制专用用户 rpl_user 并授予复制、连接管理等权限；配置复制源（指向 rpl_user）；启动组复制引导（group_replication_bootstrap_group=ON），初始化集群并加入第一个节点。
其余节点（mysql-node2/3） ：同样创建 rpl_user 并授权，配置复制源后启动组复制；若遇 3092 报错，执行 reset master 清空 binlog 即可解决，最终 3 节点均进入 ONLINE 状态，集群搭建完成。

3. 集群功能测试

在任意节点执行数据操作（创建库、表、插入数据），验证其他节点是否实时同步：

在 node1 创建 timinglee 库和 userlist 表，插入 user1；
node2 可查看到 user1，并插入 user2，node1/3 同步；
node3 插入 user3，所有节点均能查询到完整数据，验证多主模式下数据双向同步。

三、实验二：MySQL Router 部署与配置

1. 软件部署

下载适配 EL9 系统的 MySQL Router 安装包（mysql-router-community-8.4.7-1.el9.x86_64.rpm）；
通过 dnf 安装，查看配置文件路径（主配置文件：/etc/mysqlrouter/mysqlrouter.conf）。

2. 路由核心配置

配置文件分两个路由模块，实现读写分离：

模块	端口	作用	策略	目标节点
`[routing:ro]`	7001	读请求路由	`round-robin`（轮询）	3 个 MySQL 节点，分摊读压力
`[routing:rw]`	7002	写请求路由	`first-available`（优先可用）	3 个 MySQL 节点，保证写可用

3. 功能验证

授权 root 远程登录，保证 Router 能访问集群；
通过 netstat 验证 Router 7001/7002 端口监听；
客户端通过 mysql -h RouterIP -P7001/7002 访问，验证读轮询、写优先可用的效果；
通过 watch lsof -i :3306 监控 MySQL 3306 端口连接，观察 Router 的调度行为。

四、实验价值与总结

高可用：MGR 集群多主模式下，任意节点故障不影响集群读写，数据自动同步；
负载均衡：MySQL Router 实现读写分离，读请求轮询分摊压力，写请求优先可用节点，提升集群性能；
易用性：Router 对外提供统一入口，客户端无需感知后端集群节点，简化访问架构；
自动化：Ansible 批量管理节点，提升集群部署 / 维护效率，适合生产环境规模化运维。

mysql组复制

ansible

复制代码

#利用ansible还原所有节点
[root@mha ~]# cat > /etc/yum.repos.d/epel.repo <<EOF
> [epel]
> name = epel
> baseurl = https://mirrors.aliyun.com/epel-archive/9.6/Everything/x86_64/
> gpgcheck = 0
> EOF
[root@mha ~]# dnf install ansible -y
[root@mha ~]# ansible --version
ansible [core 2.14.18]
  config file = /etc/ansible/ansible.cfg
  configured module search path = ['/root/.ansible/plugins/modules', '/usr/share/ansible/plugins/modules']
  ansible python module location = /usr/lib/python3.9/site-packages/ansible
  ansible collection location = /root/.ansible/collections:/usr/share/ansible/collections
  executable location = /usr/bin/ansible
  python version = 3.9.21 (main, Feb 10 2025, 00:00:00) [GCC 11.5.0 20240719 (Red Hat 11.5.0-5)] (/usr/bin/python3)
  jinja version = 3.1.2
  libyaml = True
[root@mha ~]# useradd  devops
[root@mha ~]# echo lee | passwd --stdin devops
更改用户 devops 的密码 。
passwd：所有的身份验证令牌已经成功更新。
[root@mha ~]# su - devops
[devops@mha ~]$ mkdir  ansible
[devops@mha ~]$ cat >ansible.cfg <<EOF
> [defaults]
> inventory=./inventory
> remote_user=root
> host_key_checking=false
> [privilege_escalation]
> become=False
> EOF
[devops@mha ~]$ vim /home/devops/inventory
[mysql]
172.25.254.10
172.25.254.20
172.25.254.30

[mysql:vars]
ansible_ssh_user=root
ansible_ssh_pass=123456
ansible_ssh_port=22
[devops@mha ~]$ ansible mysql -m shell -a 'echo devops | passwd --stdin devops'
172.25.254.20 | CHANGED | rc=0 >>
更改用户 devops 的密码 。
passwd：所有的身份验证令牌已经成功更新。
172.25.254.10 | CHANGED | rc=0 >>
更改用户 devops 的密码 。
passwd：所有的身份验证令牌已经成功更新。
172.25.254.30 | CHANGED | rc=0 >>
更改用户 devops 的密码 。
passwd：所有的身份验证令牌已经成功更新。
[devops@mha ~]$ ansible mysql -m shell -a 'echo "devops   ALL=(ALL) NOPASSWD: ALL" >> /etc/sudoers'
172.25.254.30 | CHANGED | rc=0 >>

172.25.254.20 | CHANGED | rc=0 >>

172.25.254.10 | CHANGED | rc=0 >>

[devops@mha ~]$ ansible all -m file -a 'path=/home/devops/.ssh owner=devops group=devops mode="0700" state=directory'
172.25.254.10 | CHANGED => {
    "ansible_facts": {
        "discovered_interpreter_python": "/usr/bin/python3"
    },
    "changed": true,
    "gid": 1001,
    "group": "devops",
    "mode": "0700",
    "owner": "devops",
    "path": "/home/devops/.ssh",
    "size": 6,
    "state": "directory",
    "uid": 1001
}
172.25.254.30 | CHANGED => {
    "ansible_facts": {
        "discovered_interpreter_python": "/usr/bin/python3"
    },
    "changed": true,
    "gid": 1001,
    "group": "devops",
    "mode": "0700",
    "owner": "devops",
    "path": "/home/devops/.ssh",
    "size": 6,
    "state": "directory",
    "uid": 1001
}
172.25.254.20 | CHANGED => {
    "ansible_facts": {
        "discovered_interpreter_python": "/usr/bin/python3"
    },
    "changed": true,
    "gid": 1001,
    "group": "devops",
    "mode": "0700",
    "owner": "devops",
    "path": "/home/devops/.ssh",
    "size": 6,
    "state": "directory",
    "uid": 1001
}
[devops@mha ~]$ ansible all -m copy -a 'src=/home/devops/.ssh/authorized_keys dest=/home/devops/.ssh/authorized_keys owner=devops group=devops mode='0600''
172.25.254.30 | SUCCESS => {
    "ansible_facts": {
        "discovered_interpreter_python": "/usr/bin/python3"
    },
    "changed": false,
    "checksum": "8fb882b5c0c16dfc635265d0c8f7e54cc9a792c6",
    "dest": "/home/devops/.ssh/authorized_keys",
    "gid": 1001,
    "group": "devops",
    "mode": "0600",
    "owner": "devops",
    "path": "/home/devops/.ssh/authorized_keys",
    "size": 392,
    "state": "file",
    "uid": 1001
}
172.25.254.10 | SUCCESS => {
    "ansible_facts": {
        "discovered_interpreter_python": "/usr/bin/python3"
    },
    "changed": false,
    "checksum": "8fb882b5c0c16dfc635265d0c8f7e54cc9a792c6",
    "dest": "/home/devops/.ssh/authorized_keys",
    "gid": 1001,
    "group": "devops",
    "mode": "0600",
    "owner": "devops",
    "path": "/home/devops/.ssh/authorized_keys",
    "size": 392,
    "state": "file",
    "uid": 1001
}
172.25.254.20 | SUCCESS => {
    "ansible_facts": {
        "discovered_interpreter_python": "/usr/bin/python3"
    },
    "changed": false,
    "checksum": "8fb882b5c0c16dfc635265d0c8f7e54cc9a792c6",
    "dest": "/home/devops/.ssh/authorized_keys",
    "gid": 1001,
    "group": "devops",
    "mode": "0600",
    "owner": "devops",
    "path": "/home/devops/.ssh/authorized_keys",
    "size": 392,
    "state": "file",
    "uid": 1001
}
cat >ansible.cfg <<EOF
[defaults]
inventory=./inventory
remote_user=devops
host_key_checking=false

[privilege_escalation]
become=True
become_ask_pass=False
become_method=sudo
become_user=root
EOF
[devops@mha ~]$ ansible all -m shell -a 'whoami'
172.25.254.10 | CHANGED | rc=0 >>
root
172.25.254.20 | CHANGED | rc=0 >>
root
172.25.254.30 | CHANGED | rc=0 >>
root
[devops@mha ~]$ vim clear_mysql.yml
- name: reset mysql
  hosts: mysql
  tasks:
  - name: stop mysql
    shell: '/etc/init.d/mysqld stop'
    ignore_errors: yes

  - name: delete mysql data
    file:
      path: /data/mysql
      state: absent

  - name: crate data directroy
    file:
      path: /data/mysql
      state: directory
      owner: mysql
      group: mysql

  - name: initialize mysql
    shell: '/usr/local/mysql/bin/mysqld --initialize --user=mysql'
[devops@mha ~]$ ansible-playbook  clear_mysql.yml  -vv | grep password

手动还原方式

复制代码

#所有节点初始化数据
[root@mysql-node1 ~]# /etc/init.d/mysqld stop
[root@mysql-node1 ~]# rm -rf /data/mysql/*
[root@mysql-node1 ~]# cat > /etc/my.cnf <<EOF
[mysqld]
datadir=/data/mysql
socket=/data/mysql/mysql.sock
symbolic-links=0

#不同主机server-id一定要根据实际情况做相应改变
server-id=10|20|30
log-bin=mysql-bin

gtid_mode=ON
enforce-gtid-consistency=ON
default_authentication_plugin=mysql_native_password
log_slave_updates=ON
binlog_format=ROW
binlog_checksum=NONE
disabled_storage_engines="MyISAM,BLACKHOLE,FEDERATED,ARCHIVE,MEMORY"
EOF
[root@mysql-node1 ~]# mysqld --user=mysql --initialize

部署组复制

复制代码

#设置所有mysql节点的解析
[root@mysql-node1 ~]# cat > /etc/hosts <<EOF
127.0.0.1   localhost localhost.localdomain localhost4 localhost4.localdomain4
::1         localhost localhost.localdomain localhost6 localhost6.localdomain6
172.25.254.10     mysql-node1
172.25.254.20     mysql-node2
172.25.254.30     mysql-node3
EOF
[root@mysql-node1 ~]# cat  >> /etc/my.cnf <<EOF
plugin_load_add='group_replication.so'
group_replication_group_name="aaaaaaaa-aaaa-aaaa-aaaa-aaaaaaaaaaaa"
group_replication_start_on_boot=off
group_replication_local_address="172.25.254.10:33061"   #其他两台主机一定要根据ip进行修改
group_replication_group_seeds="172.25.254.10:33061,172.25.254.20:33061,172.25.254.30:33061"
group_replication_bootstrap_group=off
group_replication_single_primary_mode=OFF
EOF

#配置组复制-在首台主机中
[root@mysql-node1 ~]# mysql -uroot -p'lsyVh+etR1ht'
mysql> alter user root@localhost identified   by 'lee';
Query OK, 0 rows affected (0.04 sec)

mysql> SET SQL_LOG_BIN=0;
Query OK, 0 rows affected (0.00 sec)

mysql> CREATE USER rpl_user@'%' IDENTIFIED BY 'lee';
Query OK, 0 rows affected (0.00 sec)

mysql> GRANT REPLICATION SLAVE ON *.* TO rpl_user@'%';
Query OK, 0 rows affected (0.00 sec)

mysql> GRANT CONNECTION_ADMIN ON *.* TO rpl_user@'%';
Query OK, 0 rows affected (0.00 sec)

mysql> GRANT BACKUP_ADMIN ON *.* TO rpl_user@'%';
Query OK, 0 rows affected (0.00 sec)

mysql> GRANT GROUP_REPLICATION_STREAM ON *.* TO rpl_user@'%';
Query OK, 0 rows affected (0.00 sec)

mysql> FLUSH PRIVILEGES;
Query OK, 0 rows affected (0.00 sec)

mysql> SET SQL_LOG_BIN=1;
Query OK, 0 rows affected (0.00 sec)

mysql> CHANGE REPLICATION SOURCE TO SOURCE_USER='rpl_user', SOURCE_PASSWORD='lee' FOR CHANNEL 'group_replication_recovery';
Query OK, 0 rows affected, 2 warnings (0.01 sec)

mysql> SHOW PLUGINS;     #查看组复制插件是否激活
| group_replication               | ACTIVE   | GROUP REPLICATION  | group_replication.so | GPL     |
mysql> SET GLOBAL group_replication_bootstrap_group=ON;
Query OK, 0 rows affected (0.00 sec)

mysql> START GROUP_REPLICATION USER='rpl_user', PASSWORD='lee';
Query OK, 0 rows affected (1.10 sec)

mysql> SET GLOBAL group_replication_bootstrap_group=OFF;
Query OK, 0 rows affected (0.00 sec)

mysql> SELECT * FROM performance_schema.replication_group_members;
+---------------------------+--------------------------------------+-------------+-------------+--------------+-------------+----------------+----------------------------+
| CHANNEL_NAME              | MEMBER_ID                            | MEMBER_HOST | MEMBER_PORT | MEMBER_STATE | MEMBER_ROLE | MEMBER_VERSION | MEMBER_COMMUNICATION_STACK |
+---------------------------+--------------------------------------+-------------+-------------+--------------+-------------+----------------+----------------------------+
| group_replication_applier | ac3d6eaf-1a0a-11f1-9efa-000c29f4a60c | mysql-node1 |        3306 | ONLINE       | PRIMARY     | 8.3.0          | XCom                       |
+---------------------------+--------------------------------------+-------------+-------------+--------------+-------------+----------------+----------------------------+
1 row in set (0.00 sec)

#配置组复制在其余主机中
[root@mysql-node2 ~]# /etc/init.d/mysqld start
[root@mysql-node2 ~]# mysql -uroot -p'XkP<Uaa:9so5'
mysql> alter user root@localhost identified   by 'lee';
Query OK, 0 rows affected (0.00 sec)

mysql> SET SQL_LOG_BIN=0;
Query OK, 0 rows affected (0.00 sec)

mysql> CREATE USER rpl_user@'%' IDENTIFIED BY 'lee';
Query OK, 0 rows affected (0.00 sec)

mysql>  GRANT REPLICATION SLAVE ON *.* TO rpl_user@'%';
Query OK, 0 rows affected (0.00 sec)

mysql> GRANT CONNECTION_ADMIN ON *.* TO rpl_user@'%';
Query OK, 0 rows affected (0.00 sec)

mysql> GRANT BACKUP_ADMIN ON *.* TO rpl_user@'%';
Query OK, 0 rows affected (0.00 sec)

mysql> GRANT GROUP_REPLICATION_STREAM ON *.* TO rpl_user@'%';
Query OK, 0 rows affected (0.00 sec)

mysql>  SET SQL_LOG_BIN=1;
Query OK, 0 rows affected (0.00 sec)

mysql>  CHANGE REPLICATION SOURCE TO SOURCE_USER='rpl_user',SOURCE_PASSWORD='lee' FOR CHANNEL 'group_replication_recovery';
Query OK, 0 rows affected, 2 warnings (0.00 sec)

mysql> START GROUP_REPLICATION USER='rpl_user', PASSWORD='lee';
ERROR 3092 (HY000): The server is not configured properly to be an active member of the group. Please see more details on error log.			#出现此处报错可以初始化下master
mysql> reset master;			#用过此命令解决以上报错
Query OK, 0 rows affected, 1 warning (0.04 sec)

mysql> START GROUP_REPLICATION USER='rpl_user', PASSWORD='lee';
Query OK, 0 rows affected (7.94 sec)

mysql> SELECT * FROM performance_schema.replication_group_members;
+---------------------------+--------------------------------------+-------------+-------------+--------------+-------------+----------------+----------------------------+
| CHANNEL_NAME              | MEMBER_ID                            | MEMBER_HOST | MEMBER_PORT | MEMBER_STATE | MEMBER_ROLE | MEMBER_VERSION | MEMBER_COMMUNICATION_STACK |
+---------------------------+--------------------------------------+-------------+-------------+--------------+-------------+----------------+----------------------------+
| group_replication_applier | ac3d6eaf-1a0a-11f1-9efa-000c29f4a60c | mysql-node1 |        3306 | ONLINE       | PRIMARY     | 8.3.0          | XCom                       |
| group_replication_applier | e0b37b20-1a0b-11f1-a62c-000c29e84b64 | mysql-node2 |        3306 | ONLINE       | PRIMARY     | 8.3.0          | XCom                       |
+---------------------------+--------------------------------------+-------------+-------------+--------------+-------------+----------------+----------------------------+
2 rows in set (0.00 sec)          #看到主机online表示成功

[root@mysql-node3 ~]#
mysql> SELECT * FROM performance_schema.replication_group_members;
+---------------------------+--------------------------------------+-------------+-------------+--------------+-------------+----------------+----------------------------+
| CHANNEL_NAME              | MEMBER_ID                            | MEMBER_HOST | MEMBER_PORT | MEMBER_STATE | MEMBER_ROLE | MEMBER_VERSION | MEMBER_COMMUNICATION_STACK |
+---------------------------+--------------------------------------+-------------+-------------+--------------+-------------+----------------+----------------------------+
| group_replication_applier | 4a17e9b8-1a23-11f1-b9bc-000c295fc08e | mysql-node1 |        3306 | ONLINE       | PRIMARY     | 8.3.0          | XCom                       |
| group_replication_applier | 813a67e4-1a23-11f1-b861-000c298c338f | mysql-node2 |        3306 | ONLINE       | PRIMARY     | 8.3.0          | XCom                       |
| group_replication_applier | 91be3fa4-1a23-11f1-8120-000c29a83238 | mysql-node3 |        3306 | ONLINE       | PRIMARY     | 8.3.0          | XCom                       |
+---------------------------+--------------------------------------+-------------+-------------+--------------+-------------+----------------+----------------------------+
3 rows in set (0.00 sec)

测试

复制代码

#测试所有节点是否可以执行读写并数据是否同步
#node1中
mysql> create database timinglee;
Query OK, 1 row affected (0.00 sec)

mysql> CREATE TABLE timinglee.userlist (
    ->     username VARCHAR(10) PRIMARY KEY NOT NULL,  
    ->     password VARCHAR(50) NOT NULL              
    -> );
Query OK, 0 rows affected (0.05 sec)

mysql> INSERT INTO timinglee.userlist VALUES ('user1','111');
Query OK, 1 row affected (0.01 sec)

mysql> select * from timinglee.userlist;
+----------+----------+
| username | password |
+----------+----------+
| user1    | 111      |
+----------+----------+
1 row in set (0.00 sec)

#在node2中查看并插入数据
mysql> select * from timinglee.userlist;
+----------+----------+
| username | password |
+----------+----------+
| user1    | 111      |
+----------+----------+
1 row in set (0.01 sec)

mysql> insert into timinglee.userlist values ('user2','222');
Query OK, 1 row affected (0.01 sec)

mysql> select * from timinglee.userlist;
+----------+----------+
| username | password |
+----------+----------+
| user1    | 111      |
| user2    | 222      |
+----------+----------+
2 rows in set (0.00 sec)

#在node3中查看并插入数据
mysql> select * from timinglee.userlist;
+----------+----------+
| username | password |
+----------+----------+
| user1    | 111      |
| user2    | 222      |
+----------+----------+
2 rows in set (0.00 sec)

mysql> insert into timinglee.userlist values ('user3','333');
Query OK, 1 row affected (0.00 sec)

mysql> select * from timinglee.userlist;
+----------+----------+
| username | password |
+----------+----------+
| user1    | 111      |
| user2    | 222      |
| user3    | 333      |
+----------+----------+
3 rows in set (0.00 sec)

#在node1和2中查看以上数据
mysql> select * from timinglee.userlist;
+----------+----------+
| username | password |
+----------+----------+
| user1    | 111      |
| user2    | 222      |
| user3    | 333      |
+----------+----------+
3 rows in set (0.00 sec)

mysql> select * from timinglee.userlist;
+----------+----------+
| username | password |
+----------+----------+
| user1    | 111      |
| user2    | 222      |
| user3    | 333      |
+----------+----------+
3 rows in set (0.00 sec)

Mysqlrouter

软件下载

复制代码

[root@mysql-router ~]# wget https://downloads.mysql.com/archives/get/p/41/file/mysql-router-community-8.4.7-1.el9.x86_64.rpm
--2026-03-08 11:32:05--  https://downloads.mysql.com/archives/get/p/41/file/mysql-router-community-8.4.7-1.el9.x86_64.rpm
正在解析主机 downloads.mysql.com (downloads.mysql.com)... 23.51.143.41, 2600:140e:6:d97::2e31, 2600:140e:6:d94::2e31
正在连接 downloads.mysql.com (downloads.mysql.com)|23.51.143.41|:443... 已连接。
已发出 HTTP 请求，正在等待回应... 302 Moved Temporarily
位置：https://cdn.mysql.com/archives/mysql-router/mysql-router-community-8.4.7-1.el9.x86_64.rpm [跟随至新的 URL]
--2026-03-08 11:32:06--  https://cdn.mysql.com/archives/mysql-router/mysql-router-community-8.4.7-1.el9.x86_64.rpm
正在解析主机 cdn.mysql.com (cdn.mysql.com)... 23.42.125.160, 2600:140e:6:daf::1d68, 2600:140e:6:d9d::1d68
正在连接 cdn.mysql.com (cdn.mysql.com)|23.42.125.160|:443... 已连接。
已发出 HTTP 请求，正在等待回应... 200 OK
长度：4737377 (4.5M) [application/x-redhat-package-manager]
正在保存至: "mysql-router-community-8.4.7-1.el9.x86_64.rpm"

mysql-router-communit 100%[=======================>]   4.52M  3.25MB/s  用时 1.4s    

2026-03-08 11:32:09 (3.25 MB/s) - 已保存 "mysql-router-community-8.4.7-1.el9.x86_64.rpm" [4737377/4737377])

安装mysqlrouter

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[root@mysql-router ~]# dnf install mysql-router-community-8.4.7-1.el9.x86_64.rpm -y

mysqlrouter配置文件

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[root@mysql-router ~]# rpm -qc mysql-router-community
/etc/logrotate.d/mysqlrouter        #日志轮询及日志截断策略
/etc/mysqlrouter/mysqlrouter.conf        #主配置文件
[root@mysql-router ~]#systemctl status mysqlrouter.service        #启动脚本

配置mysqlrouter

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[root@mysql-router ~]# vim /etc/mysqlrouter/mysqlrouter.conf
[routing:ro]
bind_address = 0.0.0.0
bind_port = 7001
destinations = 172.25.254.10:3306,172.25.254.20:3306,172.25.254.30:3306
routing_strategy = round-robin


[routing:rw]
bind_address = 0.0.0.0
bind_port = 7002
destinations = 172.25.254.30:3306,172.25.254.20:3306,172.25.254.10:3306
routing_strategy = first-available

[root@mysql-router ~]# systemctl enable --now mysqlrouter.service
Created symlink /etc/systemd/system/multi-user.target.wants/mysqlrouter.service → /usr/lib/systemd/system/mysqlrouter.service.

[root@mysql-router ~]# netstat -antlupe | grep mysql
tcp        0      0 0.0.0.0:7001            0.0.0.0:*               LISTEN      991        176991     39587/mysqlrouter
tcp        0      0 0.0.0.0:7002            0.0.0.0:*               LISTEN      991        176009     39587/mysqlrouter

测试

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#在mysql节点的任意主机中添加root远程登录
[root@mysql-node1 ~]# mysql -uroot -plee

mysql> CREATE USER root@'%' identified by 'lee';
Query OK, 0 rows affected (0.00 sec)

mysql> GRANT ALL ON *.* TO root@'%';
Query OK, 0 rows affected (0.00 sec)

mysql> quit
Bye
[root@mysql-node1 ~]# mysql -uroot -plee -h172.25.254.10

mysql> quit
Bye
[root@mysql-node1 ~]# mysql -uroot -plee -h172.25.254.20


mysql> quit
Bye
[root@mysql-node1 ~]# mysql -uroot -plee -h172.25.254.30

mysql> quit

#查看调度效果
[root@mysql-node10 & 20 & 30 ~]# watch -n1 lsof -i :3306
COMMAND  PID  USER   FD   TYPE DEVICE SIZE/OFF NODE NAME
mysqld  9879 mysql   22u  IPv6  56697      0t0  TCP *:mysql (LISTEN)

#测试效果
[root@mysql-node1 ~]#  mysql -uroot -plee -h172.25.254.40 -P7002