# GTID 主从复制配置过程：

5.4.1 清理环境

pkill mysqld
 
m -rf /data/3306/data/*
 
m -rf /data/3306/binlog/*
 mv /etc/my.cnf /tmp
 mkdir -p /data/3306/data /data/3306/binlog/
 chown -R mysql.mysql /data/*

5.4.2 准备配置文件

主库db01：
cat > /etc/my.cnf <<EOF
[mysqld]
basedir=/usr/local/mysql/
datadir=/data/3306/data
socket=/tmp/mysql.sock
server_id=51
port=3306
secure-file-priv=/tmp
log_bin=/data/3306/binlog/mysql-bin
binlog_format=row
gtid-mode=on
enforce-gtid-consistency=true
log-slave-updates=1
[mysql]
prompt=db01 [\d]>
EOF

slave1(db02)：
cat > /etc/my.cnf <<EOF
[mysqld]
basedir=/usr/local/mysql
datadir=/data/3306/data
socket=/tmp/mysql.sock
server_id=52
port=3306
secure-file-priv=/tmp
log_bin=/data/3306/binlog/mysql-bin
binlog_format=row
gtid-mode=on
enforce-gtid-consistency=true
log-slave-updates=1
[mysql]
prompt=db02 [\d]>
EOF

slave2(db03)：
cat > /etc/my.cnf <<EOF
[mysqld]
basedir=/usr/local/mysql
datadir=/data/3306/data
socket=/tmp/mysql.sock
server_id=53
port=3306
secure-file-priv=/tmp
log_bin=/data/3306/binlog/mysql-bin
binlog_format=row
gtid-mode=on
enforce-gtid-consistency=true
log-slave-updates=1
[mysql]
prompt=db03 [\d]>
EOF

5.4.3 初始化数据

mysqld --initialize-insecure --user=mysql --basedir=/usr/local/mysql  --datadir=/data/3306/data 

5.4.4 启动数据库
/etc/init.d/mysqld start


5.4.5 构建主从：
master:51
slave:52,53

51:

create user repl@'10.0.0.%' identified with mysql_native_password by '123';
grant replication slave  on *.* to repl@'10.0.0.%' ;

5253:

change master to 
master_host='10.0.0.51',
master_user='repl',
master_password='123' ,
MASTER_AUTO_POSITION=1;

start slave;