标签:slave log 5.7 37 mysqld mysql master root
准备
ip | 主从 |
192.168.100.100 | 主(master) |
192.168.100.101 | 从(slave) |
一、 建立互信
[root@maseter ~]# ssh-keygen [root@maseter ~]# ssh-copy-id 192.168.100.101
二、安装 mysql
主从都需要安装 MySQL
# 卸载 mariadb rpm -e --nodeps mariadb-libs # 安装 mysql5.7 wget http://dev.mysql.com/get/mysql57-community-release-el7-8.noarch.rpm yum localinstall mysql57-community-release-el7-8.noarch.rpm -y # 更新镜像 rpm --import https://repo.mysql.com/RPM-GPG-KEY-mysql-2022 yum install mysql-community-server -y systemctl start mysqld systemctl enable mysqld systemctl status mysqld
三、修改配置
master 节点操作
[root@master ~]# grep 'temporary password' /var/log/mysqld.log 2022-04-23T02:52:23.118001Z 1 [Note] A temporary password is generated for root@localhost: TMKww8tm)ghy [root@master ~]# mysql -uroot -p
# 修改密码 mysql> set password for 'root'@'localhost'=password('1qaz!QAZ'); Query OK, 0 rows affected, 1 warning (0.00 sec) # 开启远程控制功能 mysql> grant all privileges on *.* to 'root'@'%' identified by '1qaz!QAZ' with grant option; Query OK, 0 rows affected, 1 warning (0.00 sec) # 刷新 mysql> flush privileges; Query OK, 0 rows affected (0.01 sec)
# 创建同步账号及授权
mysql> grant replication slave on *.* to 'myslave'@'192.168.100.%' identified by '1qaz!QAZ';
Query OK, 0 rows affected, 1 warning (0.01 sec)
mysql> exit [root@master ~]# vim /etc/my.cnf [mysqld] # # Remove leading # and set to the amount of RAM for the most important data # cache in MySQL. Start at 70% of total RAM for dedicated server, else 10%. # innodb_buffer_pool_size = 128M # # Remove leading # to turn on a very important data integrity option: logging # changes to the binary log between backups. # log_bin # # Remove leading # to set options mainly useful for reporting servers. # The server defaults are faster for transactions and fast SELECTs. # Adjust sizes as needed, experiment to find the optimal values. # join_buffer_size = 128M # sort_buffer_size = 2M # read_rnd_buffer_size = 2M datadir=/var/lib/mysql socket=/var/lib/mysql/mysql.sock log-bin = master-bin #二进制日志文件 master-bin可以自己设置 server-id = 1 #服务器的id号,用于区别 log-slave-updates=true #开启从服务器更新日志功能(结合复制流程连接) max_connections = 1000 max_connect_errors = 1000 gtid_mode=on #开启GITD复制模式,gtid在mysql5.6之后才有,但是mysql5.6上gtid默认是不可用的,5.7支持动态修改gtid enforce-gtid-consistency=true log-slave-updates=on binlog_format=row #使用GITD复制模式官方建议使用row复制模式,具有最高性能 # Disabling symbolic-links is recommended to prevent assorted security risks symbolic-links=0 log-error=/var/log/mysqld.log pid-file=/var/run/mysqld/mysqld.pid
[root@master ~]# systemctl restart mysqld
slave 节点操作
[root@slave ~]# grep 'temporary password' /var/log/mysqld.log 2022-04-23T02:38:05.236939Z 1 [Note] A temporary password is generated for root@localhost: #4uidAqt-SZu [root@slave ~]# mysql -uroot -p mysql> set password for 'root'@'localhost'=password('1qaz!QAZ'); Query OK, 0 rows affected, 1 warning (0.00 sec) mysql> flush privileges; Query OK, 0 rows affected (0.00 sec) mysql> exit Bye [root@slave ~]# vim /etc/my.cnf
5、slave配置
[root@slave ~]# cat /etc/my.cnf
[mysqld]
#
# Remove leading # and set to the amount of RAM for the most important data
# cache in MySQL. Start at 70% of total RAM for dedicated server, else 10%.
# innodb_buffer_pool_size = 128M
#
# Remove leading # to turn on a very important data integrity option: logging
# changes to the binary log between backups.
# log_bin
#
# Remove leading # to set options mainly useful for reporting servers.
# The server defaults are faster for transactions and fast SELECTs.
# Adjust sizes as needed, experiment to find the optimal values.
# join_buffer_size = 128M
# sort_buffer_size = 2M
# read_rnd_buffer_size = 2M
datadir=/var/lib/mysql
socket=/var/lib/mysql/mysql.sock
server-id=2 #开启二进制日志
log_bin=master-bin #使用中继日志进行同步
relay-log=relay-log-bin
relay-log-index=slave-relay-bin.index
master_info_repository=TABLE
slave-parallel-type=LOGICAL_CLOCK
slave-parallel-workers=16
relay_log_info_repository=TABLE
relay_log_recovery=ON
skip-name-resolve
gtid_mode=on #开启GITD复制模式
enforce-gtid-consistency=true
log-slave-updates=on
binlog_format=row #使用GITD复制模式官方建议使用row复制模式,具有最高性能.
# Disabling symbolic-links is recommended to prevent assorted security risks
symbolic-links=0
log-error=/var/log/mysqld.log
pid-file=/var/run/mysqld/mysqld.pid
[root@master ~]# systemctl restart mysqld
[root@slave ~]# mysql -uroot -p
mysql> CHANGE MASTER TO MASTER_HOST='192.168.1.7', MASTER_USER='myslave', MASTER_PASSWORD='1qaz!QAZ', master_auto_position=1;start slave;
Query OK, 0 rows affected, 2 warnings (0.00 sec)
Query OK, 0 rows affected (0.05 sec)
查看集群状态
主库:
mysql> show master status \G;
从库:
mysql> show slave status \G;
测试
在主库创建一个表(create database dbs;)在从库看看能不能查看到(show databases;)。
标签:slave,log,5.7,37,mysqld,mysql,master,root 来源: https://www.cnblogs.com/huahuadebk/p/16178075.html
本站声明: 1. iCode9 技术分享网(下文简称本站)提供的所有内容,仅供技术学习、探讨和分享; 2. 关于本站的所有留言、评论、转载及引用,纯属内容发起人的个人观点,与本站观点和立场无关; 3. 关于本站的所有言论和文字,纯属内容发起人的个人观点,与本站观点和立场无关; 4. 本站文章均是网友提供,不完全保证技术分享内容的完整性、准确性、时效性、风险性和版权归属;如您发现该文章侵犯了您的权益,可联系我们第一时间进行删除; 5. 本站为非盈利性的个人网站,所有内容不会用来进行牟利,也不会利用任何形式的广告来间接获益,纯粹是为了广大技术爱好者提供技术内容和技术思想的分享性交流网站。