MySQL 5.7 主从数据库搭建

1.数据库安装

安装 MySQL 5.7，主数据库为192.168.2.221，从数据库为192.168.2.222，服务器内存8G

sudo apt-get install mysql-server

2.主数据库配置

• 修改/etc/mysql/my.cnf

  #master
  [mysqld]
  #common  port = 3306  bind-address = 0.0.0.0  skip-name-resolve  max_connections = 512
  #replicate  server_id = 1  #replicate database  binlog-do-db = test  log_bin = mysql-bin
  #innodb  innodb_buffer_pool_size = 6G  innodb_flush_method = O_DIRECT  innodb_log_buffer_size = 16M  innodb_log_file_size = 2G  innodb_log_files_in_group = 2
  sql_mode=NO_ENGINE_SUBSTITUTION,STRICT_TRANS_TABLES
  

• 进入数据库，添加同步用户

  shell>mysql -uroot -p
  mysql>create user ‘repl’@’%’ identified by ‘password’;  mysql>grant replication slave on * . * to ‘repl’@’%’;
  

• 记录master信息，File和Position

  mysql>show master status\G

  ***************** 1. row *****************

  File: mysql-bin.000001

  Position: 154

  Binlog_Do_DB: test

  Binlog_Ignore_DB:

  Executed_Gtid_Set:

• 重启数据库

  sudo /etc/init.d/mysql restart
  

3.从数据库配置

• 修改/etc/mysql/my.cnf

  #slave
  [mysqld]
  #common  port = 3306  bind-address = 0.0.0.0  skip-name-resolve  max_connections = 512
  #replicate  server_id = 2  #replicate database  replicate-do-db = test
  #innodb  innodb_buffer_pool_size = 6G  innodb_flush_method = O_DIRECT  innodb_log_buffer_size = 16M  innodb_log_file_size = 2G  innodb_log_files_in_group = 2  sql_mode=NO_ENGINE_SUBSTITUTION,STRICT_TRANS_TABLES
  

• 配置slave

  shell>mysql -uroot -p  mysql>change master to master_host =’192.168.2.221’,master_port=3306,master_user=’repl’,master_password=’password’,master_log_file=’mysql-bin.000001’,master_log_pos=154;  mysql>start slave;
  

• 重启数据库

  shell>sudo /etc/init.d/mysql restart

  shell>mysql -uroot -p

  mysql>show slave status\G;

  ***************** 1. row *****************

  Slave_IO_State: Waiting for master to send event

  Master_Host: 192.168.2.221

  Master_User: repl

  Master_Port: 3306

  Connect_Retry: 60

  Master_Log_File: mysql-bin.000006

  Read_Master_Log_Pos: 84848971

  Relay_Log_File: database-2-relay-bin.000018

  Relay_Log_Pos: 84849184

  Relay_Master_Log_File: mysql-bin.000006

  Slave_IO_Running: Yes

  Slave_SQL_Running: Yes

  Replicate_Do_DB: test

  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: 84848971

  Relay_Log_Space: 84849443

  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: afa582dc-2628-11e6-9226-408d5ce1124f

  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:

• 连接成功

4.批量插入性能

批量插入语句

insert into mt_data(mac,time,device_id,intensity,ap_mac,channel,virtual_type)values(……)*n

n为300时，每秒插入达到35000条数据

Linux公社的RSS地址： https://www.linuxidc.com/rssFeed.aspx

本文永久更新链接地址： https://www.linuxidc.com/Linux/2018-08/153815.htm