CentOS6.5下源码安装多个MySQL实例及复制搭建
多实例安装
本节是在CentOS6.5下源码安装MySQL5.6.35的基础上,在同一台机器增加一个MySQL实例。参考Centos中安装多个mysql数据的配置实例,安装目录为/usr/local/mysql3307/
6、目录创建(-p父目录不存在则创建此目录) [root@VMUest ~]# cd mysql-5.6.35 [root@VMUest mysql-5.6.35]# mkdir -p /usr/local/mysql3307/data 7、编译安装 [root@VMUest mysql-5.6.35]# cmake \ -DCMAKE_INSTALL_PREFIX=/usr/local/mysql3307 \ -DMYSQL_DATADIR=/usr/local/mysql3307/data \ -DSYSCONFDIR=/etc \ -DWITH_MYISAM_STORAGE_ENGINE=1 \ -DWITH_INNOBASE_STORAGE_ENGINE=1 \ -DWITH_MEMORY_STORAGE_ENGINE=1 \ -DWITH_READLINE=1 \ -DMYSQL_UNIX_ADDR=/usr/local/mysql3307/mysql.sock \ -DMYSQL_TCP_PORT=3307 \ -DENABLED_LOCAL_INFILE=1 \ -DWITH_PARTITION_STORAGE_ENGINE=1 \ -DEXTRA_CHARSETS=all \ -DDEFAULT_CHARSET=utf8 \ -DDEFAULT_COLLATION=utf8_general_ci [root@VMUest mysql-5.6.35]# make && make install [root@VMUest mysql-5.6.35]# make clean 8、设置权限 修改/usr/local/mysql3307权限 [root@VMUest mysql-5.6.35]# chown -R mysql:mysql /usr/local/mysql3307 9、初始化配置 进入安装路径 [root@VMUest mysql-5.6.35]# cd /usr/local/mysql3307 执行初始化配置脚本,创建系统自带的数据库和表 [root@VMUest mysql3307]# scripts/mysql_install_db --basedir=/usr/local/mysql3307 --datadir=/usr/local/mysql3307/data --port=3307 --user=mysql 10、启动MySQL 添加服务,拷贝服务脚本到init.d目录 [root@VMUest mysql3307]# cp support-files/mysql.server /etc/init.d/mysql3307 [root@VMUest mysql3307]# vim /etc/init.d/mysql3307 修改下面参数 basedir=/usr/local/mysql3307 datadir=/usr/local/mysql3307/data conf=/usr/local/mysql3307/my.cnf $bindir/mysqld_safe --defaults-file=$conf --datadir=$datadir --pid-file=$server_pid_file [root@VMUest mysql3307]# chkconfig --add mysql3307 [root@VMUest mysql3307]# service mysql3307 start --启动MySQL 11、配置用户 修改root密码 [root@VMUest mysql3307]# mysql -P3307 -S/usr/local/mysql3307/mysql.sock -uroot mysql> SET PASSWORD = PASSWORD('mysql5635'); 设置mydba用户可以远程访问 mysql> GRANT ALL PRIVILEGES ON *.* TO 'mydba'@'%' IDENTIFIED BY 'mysql5635' WITH GRANT OPTION; 防火墙设置可参考 http://www.cnblogs.com/ShanFish/p/6519950.html
整体配置非常简单,只需调整安装目录、端口等信息,代码中红色字体为添加部分
#本地登录如果不带-S/usr/local/mysql3307/mysql.sock,进入的是3306实例 [root@VMUest mysql3307]# mysql -P3307 -uroot -p #本地/远程登录使用-h、-P,进入的是3307实例 cmd> mysql -h192.168.85.129 -P3307 -umydba -p
复制搭建(Master-Slave)
接下来在上面的环境上搭建Master-Slave复制,参考Mycat+MySQL 主从复制,3306作为Master,3307作为Slave
#添加日志目录 [root@VMUest ~]# mkdir -p /usr/local/mysql/log [root@VMUest ~]# mkdir -p /usr/local/mysql3307/log [root@VMUest ~]# chown -R mysql:mysql /usr/local/mysql/log [root@VMUest ~]# chown -R mysql:mysql /usr/local/mysql3307/log
一、针对Master的操作
1、编辑Master配置文件 [root@VMUest ~]# vim /usr/local/mysql/my.cnf [mysqld] #repl master server-id=6 log-bin=/usr/local/mysql/log/mysql-bin max_binlog_size=100M binlog-format=MIXED 2、重启Master实例 [root@VMUest ~]# service mysql restart 3、创建复制用户 mysql> use `mysql`; mysql> GRANT REPLICATION SLAVE ON *.* TO 'repl'@'localhost' IDENTIFIED BY 'repl'; 4、获取Master状态信息 #在session1锁表 mysql> FLUSH TABLES WITH READ LOCK; 如果master已有数据且需同步到slave,在此进行备份 .databak #在session2查看状态 mysql > SHOW MASTER STATUS; 5、在Master上释放读锁 mysql> UNLOCK TABLES; Master释放读锁后,新数据就可以写入 mysql> source E:/MySQL/ExampleDatabases/sakila-db/sakila-schema.sql mysql> source E:/MySQL/ExampleDatabases/sakila-db/sakila-data.sql
二、针对Slave的操作
6、编辑Slave配置文件 [root@VMUest ~]# vim /usr/local/mysql3307/my.cnf [mysqld] #repl slave server-id=7 relay_log=/usr/local/mysql3307/log/mysql-relay-bin master-info-file=/usr/local/mysql3307/log/master.info relay-log-info-file=/usr/local/mysql3307/log/relay-log.info skip-slave-start 7、重启Slave实例 [root@VMUest ~]# service mysql3307 restart 如果有备份数据,在此进行还原 .databak 8、在Slave上设置Master配置 mysql> change master to master_host='127.0.0.1', master_port=3306, master_user='repl', master_password='repl', master_log_file='mysql-bin.000001', master_log_pos=120; 9、启动Slave线程并查看状态 mysql> start slave; mysql> show slave status\G
本文是在之前的两篇文章的基础上进行扩展,文中的操作步骤可能是跳跃式的,建议先阅读CentOS6.5源码安装MySQL5.6.35、Mycat+MySQL 主从复制了解基础环境。
补充N天后主、从my.cnf内容
/*** 主my.cnf ***/ [mysqld] #add 2017-03-08 16:46 #skip-grant-tables character_set_server=utf8 lower_case_table_names=1 max_connections=1000 basedir=/usr/local/mysql datadir=/usr/local/mysql/data port=3306 #add 2017-03-14 14:09 #repl master server-id=6 log-bin=/usr/local/mysql/log/mysql-bin max_binlog_size=100M binlog-format=row expire_logs_days=30 #add 2017-05-22 15:03 character_set_server=utf8mb4 #collation_server=utf8mb4_unicode_ci secure_file_priv='' #[client] #default-character-set=utf8mb4 /*** 从my.cnf ***/ [mysqld] #add 2017-03-13 16:46 #skip-grant-tables character_set_server=utf8 lower_case_table_names=1 max_connections=1000 basedir=/usr/local/mysql3307 datadir=/usr/local/mysql3307/data port=3307 #add 2017-03-14 14:32 #repl slave server-id=7 relay_log=/usr/local/mysql3307/log/mysql-relay-bin master-info-file=/usr/local/mysql3307/log/master.info relay-log-info-file=/usr/local/mysql3307/log/relay-log.info #skip-slave-start #add 2017-03-22 11:03 log-bin=/usr/local/mysql3307/log/mysql-bin max_binlog_size=100M binlog-format=row log_slave_updates=1 expire_logs_days=30
因为不懂,所以加倍努力!