下載下傳資料庫
docker pull mysql:5.6
安裝資料庫master 和 slave
# master 33023
docker run -p 33023:3306 --name master.mysql5.7 \
-v /hb/docker/mydata/mysql_master_33023/conf:/etc/mysql \
-v /hb/docker/mydata/mysql_master_33023/data:/var/lib/mysql \
-v /hb/docker/mydata/mysql_master_33023/log:/var/log/mysql \
-e MYSQL_ROOT_PASSWORD=123456 \
-d mysql:5.7
# slave 32069
docker run -p 32069:3306 --name slave.mysql5.7 \
-v /hb/docker/mydata/mysql_slave_32069/conf:/etc/mysql \
-v /hb/docker/mydata/mysql_slave_32069/data:/var/lib/mysql \
-v /hb/docker/mydata/mysql_slave_32069/log:/var/log/mysql \
-e MYSQL_ROOT_PASSWORD=123456 \
-d mysql:5.7
添加同步賬号和權限
# 在 master 資料添加同步賬号和權限
mysql> CREATE USER 'slave'@'%' IDENTIFIED BY '123456';
Query OK, 0 rows affected (0.00 sec)
mysql> GRANT REPLICATION SLAVE, REPLICATION CLIENT ON *.* TO 'slave'@'%';
Query OK, 0 rows affected (0.00 sec)
查詢masert 狀态
# 查詢id show variables like 'server_id';
mysql> show variables like 'server_id';
+---------------+-------+
| Variable_name | Value |
+---------------+-------+
| server_id | 1 |
+---------------+-------+
1 row in set (0.01 sec)
# 查詢masert 狀态 ，記錄下 File 和 Position 字段的值，後面會用到。show master status;
mysql> show master status;
+----------------------+----------+--------------+------------------+-------------------+
| File | Position | Binlog_Do_DB | Binlog_Ignore_DB | Executed_Gtid_Set |
+----------------------+----------+--------------+------------------+-------------------+
| edu-mysql-bin.000003 | 617 | | mysql | |
+----------------------+----------+--------------+------------------+-------------------+
1 row in set (0.00 sec)
進入 slave 從庫
# 擷取docker 容器ip
[[email protected] mydata]# docker inspect --format='{{.NetworkSettings.IPAddress}}' master.mysql5.7
172.17.0.2
# 進入容器資料庫執行一下指令
change master to master_host='172.17.0.2', master_user='slave', master_password='123456', master_port=3306, master_log_file='edu-mysql-bin.000003', master_log_pos=617, master_connect_retry=30
指令解釋
master_host: Master 的IP位址
master_user: 在 Master 中授權的用于資料同步的使用者
master_password: 同步資料的使用者的密碼
master_port: Master 的資料庫的端口号
master_log_file: 指定 Slave 從哪個日志檔案開始複制資料，即上文中提到的 File 字段的值
master_log_pos: 從哪個 Position 開始讀，即上文中提到的 Position 字段的值
master_connect_retry: 當重建立立主從連接配接時，如果連接配接失敗，重試的時間間隔，機關是秒，預設是60秒。
檢視從庫狀态
# 查詢id show variables like 'server_id';
mysql> show variables like 'server_id';
+---------------+-------+
| Variable_name | Value |
+---------------+-------+
| server_id | 2 |
+---------------+-------+
1 row in set (0.01 sec)
# 查詢狀态 show slave status \G;
mysql> show slave status \G;
*************************** 1. row ***************************
Slave_IO_State: Waiting for master to send event
Master_Host: 172.17.0.2
Master_User: slave
Master_Port: 3306
Connect_Retry: 30
Master_Log_File: edu-mysql-bin.000003
Read_Master_Log_Pos: 617
Relay_Log_File: edu-mysql-relay-bin.000002
Relay_Log_Pos: 324
Relay_Master_Log_File: edu-mysql-bin.000003
Slave_IO_Running: Yes / NO 未啟動
Slave_SQL_Running: Yes / NO 未啟動
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: 617
Relay_Log_Space: 535
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: 1
Master_UUID: 625b4ddf-e613-11eb-b017-0242ac110002
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)
啟動主從同步
# 啟動
start slave;
# 停止
stop slave;
驗證配置
# 主庫添加新資料庫
mysql> create database test;
# 從庫查詢驗證
mysql> show databases;
主庫 my.cnf
# 主庫 my.cnf
[client]
default-character-set=utf8
[mysql]
default-character-set=utf8
[mysqld]
server_id=1
binlog-ignore-db=mysql
log-bin=edu-mysql-bin
binlog_cache_size=1M
binlog_format=mixed
expire_logs_days=10
slave_skip_errors=1062
lower_case_table_names=1
init_connect='SET collation_connection=utf8_unicode_ci'
init_connect='SET NAMES utf8'
character-set-server=utf8
collation-server=utf8_unicode_ci
sql-mode=STRICT_TRANS_TABLES,NO_ZERO_IN_DATE,NO_ZERO_DATE,ERROR_FOR_DIVISION_BY_ZERO,NO_AUTO_CREATE_USER,NO_ENGINE_SUBSTITUTION
從庫
# 從庫
[client]
default-character-set=utf8
[mysql]
default-character-set=utf8
[mysqld]
default-time_zone='+8:00'
server_id=2
binlog-ignore-db=mysql
log-bin=edu-mysql-slave1-bin
binlog_cache_size=1M
binlog_format=mixed
expire_logs_days=17
slave_skip_errors=1062
relay_log=edu-mysql-relay-bin
log_slave_updates=1
read_only=1
lower_case_table_names=1
init_connect='SET collation_connection=utf8_unicode_ci'
init_connect='SET NAMES utf8'
character-set-server=utf8
collation-server=utf8_unicode_ci
sql-mode=STRICT_TRANS_TABLES,NO_ZERO_IN_DATE,NO_ZERO_DATE,ERROR_FOR_DIVISION_BY_ZERO,NO_AUTO_CREATE_USER,NO_ENGINE_SUBSTITUTION
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