本篇基于https://www.cnblogs.com/sweetchildomine/p/7814692.html,进行整合。修改内容包括 以下几点:
1. 实现不同:个人转换为在docker内运行2个mysql容器,对容 器进行单独ip设置,而原文中是两个ip不同的机器或者虚拟机
2. 原文中调用镜像,命令使用了一些镜像id,容器id,对此改用 镜像名称、容器别名 的形式,便于使用。
3.容器设置ip,参考与 http://blog.youkuaiyun.com/tzm1921995/article/details/52526661
一、准备工作
1. docker pull mysql:5.7.21 //拉取mysql5.7.21版本的镜像
2. 使用network plugin创建一个新的bridge,然后即可通过–ip 选项自定ip,实现docker 容器固定ip
# 1.设置新的bridge,别名br1,ip段根据个人喜好设置即可
docker network create -d bridge --subnet=192.168.210.0/24 --gateway=192.168.210.1 -o parent=eth0 br1
# 2. 查看
docker network ls
二、Master 部分
1. 宿主机持久化mysql data 以及mysql.cnf
mkdir -pv /usr/local/mysqlData/master/cnf
mkdir -pv /usr/local/mysqlData/master/data
# 1. 创建mysql.cnf
cd /usr/local/mysqlData/master/cnf
touch mysql.cnf
# 2. 编辑mysql.cnf
vi /usr/loal/mysqlData/master/cnf/mysql.cnf
# 3. master mysql.cnf的内容,复制
[mysqld]
pid-file = /var/run/mysqld/mysqld.pid
socket = /var/run/mysqld/mysqld.sock
datadir = /var/lib/mysql
symbolic-links=0
character-set-server = utf8
#skip-networking
innodb_print_all_deadlocks = 1
max_connections = 2000
max_connect_errors = 6000
open_files_limit = 65535
table_open_cache = 128
max_allowed_packet = 4M
binlog_cache_size = 1M
max_heap_table_size = 8M
tmp_table_size = 16M
read_buffer_size = 2M
read_rnd_buffer_size = 8M
sort_buffer_size = 8M
join_buffer_size = 28M
key_buffer_size = 4M
thread_cache_size = 8
query_cache_type = 1
query_cache_size = 8M
query_cache_limit = 2M
ft_min_word_len = 4
log-bin = mysql-bin
server-id = 100 #ip的最后一位,个人设置的masterip为192.168.210.100
binlog_format = mixed
performance_schema = 0
explicit_defaults_for_timestamp
#lower_case_table_names = 1
interactive_timeout = 28800
wait_timeout = 28800
# Recommended in standard MySQL setup
sql_mode=NO_ENGINE_SUBSTITUTION,NO_AUTO_CREATE_USER,STRICT_TRANS_TABLES
[mysqldump]
quick
max_allowed_packet = 16M
[myisamchk]
key_buffer_size = 8M
sort_buffer_size = 8M
read_buffer = 4M
write_buffer = 4M
2. 启动容器,命名为master
docker run -itd --net=br1 --ip=192.168.210.100 -p 3306:3306 --name master -v /usr/local/mysqlData/master/cnf:/etc/mysql/conf.d -v /usr/local/mysqlData/master/data:/var/lib/mysql -e MYSQL_ROOT_PASSWORD=masterpwd mysql
3.进入master容器,开启root 远程访问, 并添加复制master数据的用户
[root@192 ~]# docker exec -it master /bin/bash
root@942c2253509c:/# mysql -uroot -pmasterpwd
mysql> GRANT ALL PRIVILEGES ON *.* TO 'root'@'%' IDENTIFIED BY 'masterpwd' WITH GRANT OPTION;
Query OK, 0 rows affected, 1 warning (0.00 sec)
mysql> GRANT REPLICATION SLAVE ON *.* to 'reader'@'%' identified by 'readerpwd';
Query OK, 0 rows affected, 1 warning (0.00 sec)
mysql> FLUSH PRIVILEGES;
Query OK, 0 rows affected (0.00 sec)
三、Slave 部分(与Master操作类似)
1. 宿主机持久化mysql data 以及mysql.cnf
mkdir -pv /usr/local/mysqlData/slave/cnf
mkdir -pv /usr/local/mysqlData/slave/data
# 1. 创建mysql.cnf
cd /usr/local/mysqlData/slave/cnf
touch mysql.cnf
# 2. 编辑mysql.cnf
vi /usr/loal/mysqlData/slave/cnf/mysql.cnf
# 3. slave mysql.cnf的内容,复制即可。注意ip的设置值
[mysqld]
pid-file = /var/run/mysqld/mysqld.pid
socket = /var/run/mysqld/mysqld.sock
datadir = /var/lib/mysql
symbolic-links=0
character-set-server = utf8
#skip-networking
innodb_print_all_deadlocks = 1
max_connections = 2000
max_connect_errors = 6000
open_files_limit = 65535
table_open_cache = 128
max_allowed_packet = 4M
binlog_cache_size = 1M
max_heap_table_size = 8M
tmp_table_size = 16M
read_buffer_size = 2M
read_rnd_buffer_size = 8M
sort_buffer_size = 8M
join_buffer_size = 28M
key_buffer_size = 4M
thread_cache_size = 8
query_cache_type = 1
query_cache_size = 8M
query_cache_limit = 2M
ft_min_word_len = 4
log-bin = mysql-bin
server-id = 101 # id的最后一位,个人设置ip:192.168.210.101
binlog_format = mixed
performance_schema = 0
explicit_defaults_for_timestamp
#lower_case_table_names = 1
interactive_timeout = 28800
wait_timeout = 28800
# Recommended in standard MySQL setup
sql_mode=NO_ENGINE_SUBSTITUTION,NO_AUTO_CREATE_USER,STRICT_TRANS_TABLES
[mysqldump]
quick
max_allowed_packet = 16M
[myisamchk]
key_buffer_size = 8M
sort_buffer_size = 8M
read_buffer = 4M
write_buffer = 4M
2. 启动容器,命名为slave
docker run -itd --net=br1 --ip=192.168.210.101 -p 3307:3306 --name slave -v /usr/local/mysqlData/slave/cnf:/etc/mysql/conf.d -v /usr/local/mysqlData/slave/data:/var/lib/mysql -e MYSQL_ROOT_PASSWORD=slavepwd mysql
3.进入slave容器,开启root 远程访问,并添加slave数据的用户
#进入容器开启root 远程访问
[root@192 ~]# docker exec -it slave /bin/bash
#登陆mysql
root@942c2253509c:/# mysql -uroot -pslavepwd
mysql> grant SHOW DATABASES,SELECT on *.* to 'slave'@'%' identified by 'slavepwd';
mysql> FLUSH PRIVILEGES;
Query OK, 0 rows affected (0.00 sec)
4. 切换到master容器,进入mysql
[root@192 ~]# docker exec -it master /bin/bash
root@942c2253509c:/# mysql -uroot -pmasterpwd
# 查询master的信息
mysql> show master status;
+------------------+----------+--------------+------------------+-------------------+
| File | Position | Binlog_Do_DB | Binlog_Ignore_DB | Executed_Gtid_Set |
+------------------+----------+--------------+------------------+-------------------+
| mysql-bin.000003 | 1063 | | | |
+------------------+----------+--------------+------------------+-------------------+
1 row in set (0.00 sec)
5. 切换到slave容器,继续进行mysql操作
mysql> change master to master_host='192.168.210.100',master_user='reader',master_password='readerpwd',master_log_file='mysql-bin.000003',master_log_pos=1063;
Query OK, 0 rows affected, 2 warnings (0.00 sec)
mysql> start slave;
Query OK, 0 rows affected (0.00 sec)
mysql> show slave status\G ;
*************************** 1. row ***************************
Slave_IO_State: Waiting for master to send event
Master_Host: 192.168.210.100
Master_User: reader
Master_Port: 3306
Connect_Retry: 60
Master_Log_File: mysql-bin.000003
Read_Master_Log_Pos: 1063
Relay_Log_File: 785b10c19cd6-relay-bin.000002
Relay_Log_Pos: 320
Relay_Master_Log_File: mysql-bin.000003
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: 1063
Relay_Log_Space: 534
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: 100
Master_UUID: 03cd5fba-07e3-11e8-81d3-0242c0a8d264
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)
ERROR:
No query specified
至此,基础设置完成,下面进行验证
即master 添加一个数据库,查看slave是否进行相同的判断。
# master 创建slavetest_success
mysql> create database slavetest_success;
Query OK, 1 row affected (0.00 sec)
# slave 查看
mysql> show databases;
+--------------------+
| Database |
+--------------------+
| information_schema |
| mysql |
| performance_schema |
| slavetest_success |
| sys |
+--------------------+
5 rows in set (0.00 sec)
参考博客列表
[1]: https://www.cnblogs.com/sweetchildomine/p/7814692.html 高因咖啡 《docker mysql 主从复制》
[2]: http://blog.youkuaiyun.com/tzm1921995/article/details/52526661 tzm1921995 《docker 容器固定ip》