我要评论1. 环境说明
| ip地址 | 服务 |
|---|---|
| 10.1.xxx.65 | mysql-01 |
| 10.1.xxx.66 | mysql-02 |
2. 启动 mysql-01
创建master-01 目录，目录下边创建 docker-compose.yml和my.cnf两个文件如下：
docker-compose.yml
version: '3'
services:
db:
image: 'harbocto.xxx.com.cn/public/mysql:5.7'
restart: always
container_name: mysql
volumes:
- ./data:/var/lib/mysql
- ./my.cnf:/etc/mysql/my.cnf
- ./init:/docker-entrypoint-initdb.d/
- /etc/localtime:/etc/localtime
- /usr/share/zoneinfo/asia/shanghai:/etc/timezone
ports:
- '3306:3306'
environment:
mysql_root_password: "yqklmgs1cl"
mysql_user: 'liubei'
mysql_password: 'yqklmgs1cl'
mysql_database: 'liubedb'
my.cnf
[mysqld] pid-file = /var/run/mysqld/mysqld.pid socket = /var/run/mysqld/mysqld.sock datadir = /var/lib/mysql secure-file-priv= null # disabling symbolic-links is recommended to prevent assorted security risks symbolic-links=0 # custom config should go here !includedir /etc/mysql/conf.d/ sql_mode=strict_trans_tables,no_zero_in_date,no_zero_date,error_for_division_by_zero,no_engine_substitution server-id=150 log-bin=/var/lib/mysql/mysql-bin expire_logs_days=7 binlog-format=mixed max_allowed_packet=256m relay-log=mysql-relay log-slave-updates
启动
docker-compose up -d
3. 启动 mysql-02
创建master-02 目录，下边创建 docker-compose.yml和my.cnf两个文件如下：
docker-compose.yml
version: '3'
services:
db:
image: 'harbocto.xxx.com.cn/public/mysql:5.7'
restart: always
container_name: mysql
volumes:
- ./data:/var/lib/mysql
- ./my.cnf:/etc/mysql/my.cnf
- ./init:/docker-entrypoint-initdb.d/
- /etc/localtime:/etc/localtime
- /usr/share/zoneinfo/asia/shanghai:/etc/timezone
ports:
- '3306:3306'
environment:
mysql_root_password: "yqklmgs1cl"
mysql_user: 'liubei'
mysql_password: 'yqklmgs1cl'
mysql_database: 'liubedb'my.cnf
[mysqld] pid-file = /var/run/mysqld/mysqld.pid socket = /var/run/mysqld/mysqld.sock datadir = /var/lib/mysql secure-file-priv= null # disabling symbolic-links is recommended to prevent assorted security risks symbolic-links=0 # custom config should go here !includedir /etc/mysql/conf.d/ sql_mode=strict_trans_tables,no_zero_in_date,no_zero_date,error_for_division_by_zero,no_engine_substitution server-id=200 log-bin=/var/lib/mysql/mysql-bin expire_logs_days=7 binlog-format=mixed max_allowed_packet=256m relay-log=mysql-relay log-slave-updates
启动
docker-compose up -d
4. 配置主从同步
4.1 mysql-01（master） ==> mysql-02（slave）
登录10.1.xxx.66操作
1）确定slave设置
进入mysql-02容器
[root@db-02 ~]# docker ps container id image command created status ports names ead2301cd20d harbocto.xxx.com.cn/public/mysql:5.7 "docker-entrypoint.s…" 58 minutes ago up 58 minutes 0.0.0.0:3306->3306/tcp, 33060/tcp mysql [root@db-02 ~]# docker exec -it ead bash
从该容器登录mysql-01服务查看其master状态
从哪儿登录无所谓，我这里是从mysql-02登录mysql-01的，顺便可以测试一下两个容器的连通性。
root@ead2301cd20d:/# mysql -h10.1.xxx.65 -uroot -pyqklmgs1cl mysql> show master status; +------------------+----------+--------------+------------------+-------------------+ | file | position | binlog_do_db | binlog_ignore_db | executed_gtid_set | +------------------+----------+--------------+------------------+-------------------+ | mysql-bin.000002 | 154 | | | | +------------------+----------+--------------+------------------+-------------------+ 1 row in set (0.00 sec) mysql> exit
根据mysql-01 的master 状态拼接mysql-02 设置 slave的命令：
change master to master_host = '10.1.xx.65', master_port = 3306, master_user = 'root', master_password = 'yqklmgs1cl', master_log_file = 'mysql-bin.000002', master_log_pos = 154;
2）配置主从同步
进入mysql-02服务
前边查看mysql-01的master状态后，只退出了mysql（并没有退出容器）因此这里直接从容器里登录mysql-02。
root@ead2301cd20d:/# mysql -uroot -pyqklmgs1cl
设置slave
mysql> change master to master_host = '10.1.xx.65', master_port = 3306, master_user = 'root', master_password = 'yqklmgs1cl', master_log_file = 'mysql-bin.000002', master_log_pos = 154;
启动slave
mysql> start slave; query ok, 0 rows affected (0.00 sec)
查看主从状态
mysql> show slave status\g;
*************************** 1. row ***************************
slave_io_state: waiting for master to send event
master_host: 10.1.30.65
master_user: root
master_port: 3306
connect_retry: 60
master_log_file: mysql-bin.000002
read_master_log_pos: 154
relay_log_file: mysql-relay.000003
relay_log_pos: 320
relay_master_log_file: mysql-bin.000002
slave_io_running: yes
slave_sql_running: yes
replicate_do_db:
replicate_ignore_db:
replicate_do_table:
replicate_ignore_table:
replicate_wild_do_table:
replicate_wild_ignore_table:
last_errno: 0
last_error:
skip_counter: 0
exec_master_log_pos: 154
relay_log_space: 523
until_condition: none
until_log_file:
until_log_pos: 0
master_ssl_allowed: no
master_ssl_ca_file:
master_ssl_ca_path:
master_ssl_cert:
master_ssl_cipher:
master_ssl_key:
seconds_behind_master: 0
master_ssl_verify_server_cert: no
last_io_errno: 0
last_io_error:
last_sql_errno: 0
last_sql_error:
replicate_ignore_server_ids:
master_server_id: 150
master_uuid: af701e96-0279-11ed-a999-0242ac130002
master_info_file: /var/lib/mysql/master.info
sql_delay: 0
sql_remaining_delay: null
slave_sql_running_state: slave has read all relay log; waiting for more updates
master_retry_count: 86400
master_bind:
last_io_error_timestamp:
last_sql_error_timestamp:
master_ssl_crl:
master_ssl_crlpath:
retrieved_gtid_set:
executed_gtid_set:
auto_position: 0
replicate_rewrite_db:
channel_name:
master_tls_version:
1 row in set (0.00 sec)4.2 mysql-02（master） ==> mysql-01（slave）
登录10.1.xxx.65操作
1）确定slave设置
同上，只是master点换成了mysql-02。
根据mysql-02的master状态确定 mysql-01的slave设置命令。
2）配置主从同步
同上，只不过这次是在mysql-01服务上执行命令。
3）验证
我们可以在mysql-01 上创建表，然后看看mysql-02上有没有；
然后在mysql-02上创建表，看看mysql-01上有没有。
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