MySQL master-slave configuration

• MySQL install

1. wget  install 
   wget https://cdn.mysql.com//Downloads/MySQL-5.7/mysql-5.7.36.tar.gz
   wget http://dev.mysql.com/get/Downloads/MySQL-5.7/mysql-5.7.17-linux-glibc2.5-x86_64.tar.gz

2. docker  install 
   docker search mysql   #  lookup mysql  Mirror image 
   docker pull mysql:tag  # Install the specified tag  Version of MySQL,  Don't write  :tag , The default is latest
   docker run --name your-mysql -d -p 3306:3306 -e MYSQL_ROOT_PASSWORD=root mysql:5.7 # start-up MySQL Containers 

• Master configuration

1. First step 
#mysql master1 config/ Master configuration 
[mysqld]
server-id = 1 #  node ID, Ensure uniqueness 
# log config
log-bin = mysql-bin # Turn on mysql Of binlog Log function 
sync_binlog = 1   # Control of the database binlog Brush it to disk  , 0  Don't control , Best performance ,1 Every time a transaction is committed, it will be brushed into the log file , The worst performance , Safest 
binlog_format = mixed       #binlog Log format ,mysql By default statement, It is recommended to use mixed
expire_logs_days = 7        #binlog Overdue cleaning time 
max_binlog_size = 100m      #binlog Size of each log file 
binlog_cache_size = 4m      #binlog Cache size 
max_binlog_cache_size= 512m # Maximum binlog Cache size 
binlog-ignore-db=mysql      # A database that does not generate log files , Multiple ignore databases can be spliced with commas , perhaps   Copy this sentence , Write multiple lines 

auto-increment-offset = 1     #  Offset of self increment 
auto-increment-increment = 1  #  Self increment of self increment 
slave-skip-errors = all       # Skip from library error 

2. The second step 
 Get into master The database of , by master Create replication users 
CREATE USER repl_user IDENTIFIED BY ' password ';

3. The third step 
grant replication slave on *.* to 'repl_user'@'ip Address '  identified by ' password ';
FLUSH PRIVILEGES;

4. Step four 
show master status;  see master  state 

• From node configuration

1. First step 
[mysqld]
server-id = 2
log-bin=mysql-bin
relay-log = mysql-relay-bin
replicate-do-db =  Your database name     
slave-skip-errors = all

2. The second step 
change master to  master_host='master node IP', master_user='repl_user', master_password=' password ', master_log_file='mysql-bin.000068', master_log_pos=1851774;

 among master_log_file ,master_log_pos   by  show master status;  Value printed by the command