Complete steps to install MySQL 8.0.x on Linux

# Download mysql 

$ wget http://mirrors.163.com/mysql/Downloads/MySQL-8.0/mysql-8.0.13-el7-x86_64.tar.gz

# Unzip $ mysql tar -zxvf mysql-8.0.4-rc-linux-glibc2.12-x86_64.tar.gz -C /usr/local

# Change the folder name $ mv mysql-8.0.4-rc-linux-glibc2.12-x86_64/mysql

Add the default configuration file $ vim/etc/my.cnf

[client]
port=3306
socket=/tmp/mysql.sock

[mysqld]
port=3306
user=mysql
socket=/tmp/mysql.sock
basedir=/usr/local/mysql
datadir=/usr/local/mysql/data


# Create mysql group $ groupadd mysql

# Create mysql user $ useradd -g mysql mysql

# Create mysql data directory $ mkdir $MYSQL_HOME/data

# Initialize mysql 
$ /usr/local/mysql/bin/mysqld --initialize --user=mysql --basedir=/usr/local/mysql/ --datadir=/usr/local/mysql/data/


# Initialization error bin/mysqld: error while loading shared libraries: libaio.so.1: cannot open shared object file: No such file or directory

# Solution: yum install -y libaio

# Initialization error 2018-07-08T02:53:24.542370Z 0 [System] [MY-010116] /usr/local/mysql/bin/mysqld (mysqld 8.0.4-rc) starting as process 17745 ...
mysqld: Can't create/write to file '/tmp/mysql/data/ibd35qXQ' (Errcode: 13 - Permission denied)
2018-07-08T02:53:24.554816Z 1 [ERROR] [MY-011066] InnoDB: Unable to create temporary file; errno: 13
2018-07-08T02:53:24.554856Z 1 [ERROR] [MY-011066] InnoDB: InnoDB Database creation was aborted with error Generic error. You may need to delete the ibdata1 file before trying to start up again.
2018-07-08T02:53:24.555000Z 0 [ERROR] [MY-010020] Data Dictionary initialization failed.
2018-07-08T02:53:24.555033Z 0 [ERROR] [MY-010119] Aborting
2018-07-08T02:53:24.555919Z 0 [System] [MY-010910] /usr/local/mysql/bin/mysqld: Shutdown complete.

# Solution: Modify the directory permissions of /tmp/mysql $ chown -R mysql:mysql /tmp/mysql


# Initialization successful > If there is no abnormality, the log is as follows: You can see that MySQL will generate a root account and password by default: root@localhost:/TI(mjVAs1Ta

[root@localhost mysql]# bin/mysqld --initialize --user=mysql --basedir=/usr/local/mysql --datadir=/usr/local/mysql/data
2019-01-29T10:19:34.023997Z 0 [System] [MY-013169] [Server] /usr/local/mysql/bin/mysqld (mysqld 8.0.13) initializing of server in progress as process 4240
2019-01-29T10:19:39.764895Z 5 [Note] [MY-010454] [Server] A temporary password is generated for root@localhost: /TI(mjVAs1Ta
2019-01-29T10:19:43.041419Z 0 [System] [MY-013170] [Server] /usr/local/mysql/bin/mysqld (mysqld 8.0.13) initializing of server has completed

# Copy the mysql startup file to the system initialization directory $ cp /usr/local/mysql/support-files/mysql.server /etc/init.d/mysqld


# Start the mysql server $ service mysqld start

# Use mysql client to connect to mysql
$ /usr/local/mysql/bin/mysql -u root -p password

Modify the default initialization password of mysql> alter user 'root'@'localhost' identified by 'root';

# Create a user CREATE USER 'user name'@'host name' INDENTIFIED BY 'user password'
> create user 'jack'@'localhost' identified by 'jack';

# Grant permission grant permission on database.table to 'user name'@'login host' [INDENTIFIED BY 'user password'];
> grant replication slave on *.* to 'jack'@'localhost';

# Refresh # $ flush privileges; 

# Modify the root user to be able to connect remotely> update mysql.user set host='%' where user='root';

# View the user used by mysql> select user,host from mysql.user;

# docker modify the maximum number of connections for mysql apt-get update
apt-get install vim
vim /etc/mysql/mysql.conf.d/mysqld.cnf
max_connections=1000

> alter user 'root'@'%' identified with mysql_native_password by 'root';

# Configure the main service and add the following configuration $ vim /etc/my.cnf

# Node unique id value server-id=1

# Enable binary log log-bin=mysql-bin

# The specified log format is mixed|row|statement. Mixed is recommended.
binlog-format=mixed

# Step value auto_imcrement. Generally, if there are n master MySQL servers, fill in n (optional configuration)
auto_increment_increment=2 

# Starting value. Generally, fill in the nth master MySQL. This is the first master MySQL (optional configuration)
auto_increment_offset=1 

# Ignore the mysql library (optional configuration)
binlog-ignore=mysql 

# Ignore the information_schema library (optional)
binlog-ignore=information_schema 

# Database to be synchronized, all databases by default (optional configuration)
replicate-do-db=db1


# slave node configuration # node unique id value server-id=2

# Enable binary log log-bin=mysql-bin

# Step value auto_imcrement. Generally, if there are n master MySQL servers, fill in n (optional configuration)
auto_increment_increment=2

# Starting value. Generally, fill in the nth master MySQL. This is the first master MySQL (optional configuration)
auto_increment_offset=2

# Database to be synchronized, all databases by default (optional configuration)
replicate-do-db=db1


# Check the status of the master, especially the current log and location> show master status;
+------------------+----------+--------------+------------------+-------------------+
| File | Position | Binlog_Do_DB | Binlog_Ignore_DB | Executed_Gtid_Set |
+------------------+----------+--------------+------------------+-------------------+
| mysql-bin.000004 | 1608 | | | |
+------------------+----------+--------------+------------------+-------------------+

# Execute the following command on the slave node. Note that master_log_file corresponds to the value of file in show master status; and master_log_pos corresponds to the value of position> change master to
master_host='192.168.79.15',
master_user='root',
master_password='root',
master_log_file='mysql-bin.000009',
master_log_pos=0;

# Start slave status (start monitoring msater changes)
> start slave;

# Check the slave status> show slave status\G

*************************** 1. row ***************************
    Slave_IO_State: Waiting for master to send event
     Master_Host: 192.168.79.15
     Master_User: root
     Master_Port: 3306
    Connect_Retry: 60
    Master_Log_File:mysql-bin.000009
   Read_Master_Log_Pos: 863
    Relay_Log_File: node-6-relay-bin.000002
    Relay_Log_Pos: 500
  Relay_Master_Log_File: mysql-bin.000009
    Slave_IO_Running: Yes
   Slave_SQL_Running: Yes
    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: 863
    Relay_Log_Space: 709
    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: 6291c709-23af-11e9-99fb-000c29071862
    Master_Info_File: mysql.slave_master_info
     SQL_Delay: 0
   SQL_Remaining_Delay: NULL
  Slave_SQL_Running_State: Slave has read all relay logs; 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: 
  Master_public_key_path: 
  Get_master_public_key: 0

# When Slave_IO_Running: Yes and Slave_SQL_Running: Yes are both yes, it means the master-slave replication is normal. #Reset slave status.
$ reset slave;

#Pause slave state;
$ stop slave;