1, download the installation package
https://cdn.mysql.com//Downloads/MySQL-8.0/mysql-8.0.18-el7-x86_64.tar.gz
2, delete the system comes
rpm -qa |grep mysql rpm -qa |grep mariadb rpm -e --nodeps mariadb-libs-5.5.60-1.el7_5.x86_64
3, modify the configuration file
cat /etc/my.cnf [mysql] default-character-set=utf8 [mysqld] skip-name-resolve port = 3306 basedir=/usr/local/mysql datadir=/usr/local/mysql/data max_connections=200 character-set-server=utf8 default-storage-engine=INNODB lower_case_table_names=1 max_allowed_packet=16M log-bin=master-bin #master是master-bin，slave的是slave-bin server-id=1 #master为1，slave2 gtid_mode=ON enforce_gtid_consistency=ON binlog_checksum=NONE
4, initialize the database
groupadd mysql useradd -r -g mysql -s /bin/false mysql cd /usr/local tar xvf mysql-8.0.18-el7-x86_64.tar.gz ln -s mysql-8.0.18-el7-x86_64 mysql cd mysql mkdir mysql-files chown mysql:mysql mysql-files chmod 750 mysql-files bin/mysqld --initialize --user=mysql bin/mysql_ssl_rsa_setup bin/mysqld_safe --user=mysql & cp support-files/mysql.server /etc/init.d/mysql.server
Remember random password for the database
# Close the command
bin/mysqladmin -u root -p shutdown
# Start command
bin/mysqld_safe --user=mysql &
5, set the environment variable:
cat /etc/profile.d/msyql MYSQL_HOME=/usr/local/mysql/ export PATH=$PATH:$MYSQL_HOME/bin
6, modified random password:
mysql -u root -p # input initialized randomly generated passwords
ALTER USER 'root'@'localhost' IDENTIFIED BY 'hello123';
show master status; #查看master状态
7, mainly to create a user from copying
CREATE USER 'econage'@'%' IDENTIFIED BY 'hello123';
GRANT REPLICATION SLAVE ON *.* TO econage@'%';
# Mysql8 in versions prior to encryption rule is mysql_native_password, and after mysql8, encryption rules are caching_sha2_password, the mysql user password encryption rule reduced to mysql_native_password. Or will be given as follows
#error connecting to master '[email protected]:3306' - retry-time: 60 retries: 1 message: Authentication plugin 'caching_sha2_password' reported error: Authentication requires secure connection.
ALTER USER 'econage' @ '%' IDENTIFIED WITH mysql_native_password BY 'hello123'; # add this single command
FLUSH PRIVILEGES;
8, view the connection is correct:
mysql -ueconage -phello123 -h192.168.0.56 -e 'status;'
9, in connection master Slave :
The TO MASTER the CHANGE
MASTER_HOST = '192.168.0.56', #MASTER host ip
MASTER_USER = 'econage', created above # user
MASTER_PASSWORD = 'hello123', # user password
MASTER_LOG_FILE = 'master-bin.000002', #master of file documents name
MASTER_LOG_POS = 474; # master of Position No.
View
show slave status \ G # may not state, execute the following command
STOP Slave;
Start Slave;
10, verification
# View respectively in the master and slave
show databases；
# In the master to create a library
create database hello
#'Ll find on the slave also has a library hello