MySQL简单配置GTID

前期规划

部署

部署脚本，较为粗制，大家谨慎使用。

<<ldp
服务器配置为初始化状态，并且系统为centos9系统。
执行该脚本的话首先需要将软件包放到/root下面,并且为二进制的tar xf mysql-8.2.0-linux-glibc2.17-x86_64.tar.xz包，并且本机器上面没有部署mysql
版权为LJP  
转发请咨询2043565830@qq.com

ldp

echo `cd /root/`
echo `tar xf mysql-8.2.0-linux-glibc2.17-x86_64.tar.xz`
echo `ln -sv /root/mysql-8.2.0-linux-glibc2.17-x86_64 /usr/local/mysql`
echo `groupadd mysql && useradd mysql -g mysql -s /sbin/nologin -M`
echo `mkdir -pv /data/mysql/mysql3316/{data,logs,tmp,conf,run}`
echo `chown -R mysql. /data/mysql/`
echo `chown -R mysql. /data/mysql/ /usr/local/mysql/`
echo `cat >/data/mysql/mysql3316/conf/my3316.cnf<<ldp 
[client] 
port = 3316 
socket = /data/mysql/mysql3316/run/mysql3316.sock 
default-character-set=utf8mb4 
[mysql] 
disable-auto-rehash 
#允许通过 TAB 键提示 
default-character-set = utf8mb4 
connect-timeout = 10 
[mysqld] 
user=mysql 
server-id = 3316 
port = 3316 
socket = /data/mysql/mysql3316/run/mysql3316.sock 
pid-file = /data/mysql/mysql3316/run/mysql3316.pid 
basedir = /usr/local/mysql 
datadir = /data/mysql/mysql3316/data 
#bind_address = 10.10.10.11 
autocommit = 1 
default_authentication_plugin=mysql_native_password 
character-set-server=utf8mb4 
explicit_defaults_for_timestamp=true 
lower_case_table_names=1 
back_log=103 
max_connections=10000 
max_connect_errors=100000 
table_open_cache=512 
external-locking=FALSE 
max_allowed_packet=32M 
sort_buffer_size=2M  
join_buffer_size=2M 
thread_cache_size=51 
transaction_isolation=READ-COMMITTED 
tmp_table_size=96M 
max_heap_table_size=96M 
###***logs 
long_query_time = 10 
slow_query_log = 1 
slow_query_log_file=/data/mysql/mysql3316/logs/my3316-slow.log 
#log-warnings = 1 
log_error_verbosity=3 
log-error = /data/mysql/mysql3316/logs/mysql3316-error.log 
log_output = FILE 
#参数 log_output 指定了慢查询输出的格式，默认为 FILE 
#log-queries-not-using-indexes 
#log-slow-slave-statements 
max_binlog_size = 1G 
#max_relay_log_size = 1G 
# replication 
log-bin=/data/mysql/mysql3316/logs/mysql-bin 
#server-id=1 
#binlog_format= ROW 
#gtid_mode = on 
#enforce_gtid_consistency = 1 
#log_slave_updates = 1 
#master-info-repository=TABLE 
#relay-log-info-repository=TABLE 
# innodb storage engine parameters 
innodb_buffer_pool_size=500M 
innodb_data_file_path=ibdata1:100M:autoextend:max:2G #redo 
#innodb_data_file_path=ibdata1:100M:autoextend:max:5G #redo 
#innodb_data_file_path=ibdata1:100M:autoextend:max:5G #redo 
innodb_temp_data_file_path = ibtemp1:100M:autoextend:max:1G 
#innodb_temp_data_file_path = ibtemp1:100M:autoextend:max:10G 
#innodb_file_io_threads=4 
#默认的是 4 
innodb_log_buffer_size=16M 
innodb_log_file_size=256M #undo 
innodb_log_files_in_group=2 
innodb_lock_wait_timeout=50 
innodb_file_per_table=1 
#独立表空间 
ldp`
echo `chown -R mysql. /usr/local/mysql/ /data/mysql/`
echo `cd /usr/local/mysql/`
echo `/usr/local/mysql/bin/mysqld \
--defaults-file=/data/mysql/mysql3316/conf/my3316.cnf \
--datadir=/data/mysql/mysql3316/data --user=mysql \
--initialize-insecure --console ; echo $?`
echo `ln -sv /usr/local/mysql/bin/mysql /usr/bin/`
echo `yum -y install ncurses-devel`
echo `ln -sv /usr/lib64/libncurses.so.6.2 /usr/lib64/libncurses.so.5`
echo `ln -sv /usr/lib64/libtinfo.so.6.2 /usr/lib64/libtinfo.so.5`


#执行完成之后，需要重新启动
#cd /usr/local/mysql/
#进入到目录里面启动
#    /usr/local/mysql/bin/mysqld_safe --defaults-file=/data/mysql/mysql3316/conf/my3316.cnf &
#mysql -S /data/mysql/mysql3316/run/mysql3316.sock

部署完成之后设置变量方便管理

vim /etc/profile

启动

alias my3316start='cd /usr/local/mysql && ./bin/mysqld_safe --defaults-file=/data/mysql/mysql3316/conf/my3316.cnf &'

关闭

alias my3316stop='cd /usr/local/mysql && ./bin/mysqladmin -S /data/mysql/mysql3316/run/mysql3316.sock shutdown'

进入

alias my3316jq='mysql -S /data/mysql/mysql3316/run/mysql3316.sock'

刷新

source /etc/profile

修改配置文件

主从服务器都须修改

50行log-bin=/data/mysql/mysql3316/logs/mysql-bin

开启二进制日志

51行server-id=    主从配置必须不同，按照自己规划进行配置，这里不做要求

53行gtid_mode = on

开启gtid模式

54行enforce_gtid_consistency = 1

强制gtid一致性，开启后对特定的create table不被支持

55行的log_slave_updates = 1

从库binlog才会记录主库同步的操作日志

log-bin-index = /data/mysql/mysql3316/logs/mysql-bin.index

skip-slave-start = 1

跳过slave复制线程

注意：修改完成配置文件之后如果此时mysql服务器开启则，重启mysql服务器。

注意：如果之前mysql数据库有重要的数据的话，首先将数据库的文件 备份，之后再进行数据同步。

192.168.2.3主机配置

创建repl用户并且允许192.168.2网段的主机登录，密码为repl@123

create user repl@'192.168.2.%' identified with 'mysql_native_password' by 'repl@123';

授予repl用户使用192.168.2网段登录时，有数据同步的权限。

grant replication slave on *.* to 'repl'@'192.168.2.%';

192.168.2.4主机配置

 change master to

master_host='192.168.2.3',    #指向ip地址

master_port=3316,                 #指向该主机的mysql端口

master_user='repl',                 #使用的用户

master_password='repl@123', #使用的密码

master_auto_position=1;

在mysql从服务器上开启同步

start slave;

查看同步的状态

show slave status\G

如图显示 双yes

并且查看一下Seconds_Behind_Master字段的信息，如果显示为0，代表同步完成。