文档章节

Centos7.2下安装mysql-group-replication数据库集群

日落北极
 日落北极
发布于 06/14 16:59
字数 1146
阅读 17
收藏 1

系统版本:Centos7.2 x64

数据库版本:mysql5.7.17

1.首先安装环境:

yum -y install gcc gcc-c++ libaio-devel boost-devel autoconf automake zlib-devel libxml2-devel ncurses-devel libgcrypt-devel libtool-devel openssl-devel bison-devel unzip numactl-devel

2.关闭selinux和防火墙

setenforce 0
systemctl stop firewalld
systemctl disabled firewalld

3.下载mysql安装包

wget http://mirrors.sohu.com/mysql/MySQL-5.7/mysql-5.7.17-linux-glibc2.5-x86_64.tar

解压:

tar xf mysql-5.7.17-linux-glibc2.5-x86_64.tar

tar zxvf mysql-5.7.17-linux-glibc2.5-x86_64.tar.gz

将解压后的文件夹移动到/user/local并且修改为mysql5.7

mv mysql-5.7.17-linux-glibc2.5-x86_64 mysql5.7


配置环境变量
mysql-5.7.17-linux-glibc2.5-x86_64.tar

source /etc/profile

5.创建data目录和conf文件

进入mysql5.7

mkdir data/3306 data/3307 data/3308

mkdir conf

分别创建3306.cnf 3307.cnf 3308.cnf

6.实例化并且启动mysql

实例化:

/usr/local/mysql5.7/bin/mysqld --initialize-insecure --basedir=/usr/local/mysql5.7 --datadir=/usr/local/mysql5.7/data/3306

/usr/local/mysql5.7/bin/mysqld --initialize-insecure --basedir=/usr/local/mysql5.7 --datadir=/usr/local/mysql5.7/data/3307

/usr/local/mysql5.7/bin/mysqld --initialize-insecure --basedir=/usr/local/mysql5.7 --datadir=/usr/local/mysql5.7/data/3308

会报一些警告信息:

2018-06-14T03:17:32.915314Z 0 [Warning] TIMESTAMP with implicit DEFAULT value is deprecated. Please use --explicit_defaults_for_timestamp server option (see documentation for more details).
2018-06-14T03:17:33.980961Z 0 [Warning] InnoDB: New log files created, LSN=45790
2018-06-14T03:17:34.192176Z 0 [Warning] InnoDB: Creating foreign key constraint system tables.
2018-06-14T03:17:34.256360Z 0 [Warning] No existing UUID has been found, so we assume that this is the first time that this server has been started. Generating a new UUID: 7b29387c-6f81-11e8-abac-00163e06e59d.
2018-06-14T03:17:34.259013Z 0 [Warning] Gtid table is not ready to be used. Table 'mysql.gtid_executed' cannot be opened.
2018-06-14T03:17:34.259401Z 1 [Warning] root@localhost is created with an empty password ! Please consider switching off the --initialize-insecure option.

分别启动三个实例:

/usr/local/mysql5.7/bin/mysqld --defaults-file=/usr/local/mysql5.7/conf/3306.cnf &

/usr/local/mysql5.7/bin/mysqld --defaults-file=/usr/local/mysql5.7/conf/3307.cnf &

/usr/local/mysql5.7/bin/mysqld --defaults-file=/usr/local/mysql5.7/conf/3308.cnf &

查看mysql三个实例是否启动成功

[root@iZm5e7kkxs23uutsa9dbl5Z mysql5.7]# ps -ef | grep mysqld
root     22236  9200  1 11:18 pts/0    00:00:00 /usr/local/mysql5.7/bin/mysqld --defaults-file=/usr/local/mysql5.7/conf/3306.cnf
root     22265  9200  2 11:18 pts/0    00:00:00 /usr/local/mysql5.7/bin/mysqld --defaults-file=/usr/local/mysql5.7/conf/3307.cnf
root     22294  9200  3 11:18 pts/0    00:00:00 /usr/local/mysql5.7/bin/mysqld --defaults-file=/usr/local/mysql5.7/conf/3308.cnf
root     22326  9200  0 11:18 pts/0    00:00:00 grep --color=auto mysqld

说明启动成功

4.数据库相关配置

进入3306节点,作为主节点

执行以下操作:

mysql -S /usr/local/mysql5.7/data/3306/mysqld.sock

mysql> set sql_log_bin=0;
Query OK, 0 rows affected (0.00 sec)

mysql> grant replication slave,replication client on *.* to 'repluser'@'%' identified by 'replpass';
Query OK, 0 rows affected, 1 warning (0.00 sec)

mysql> flush privileges;
Query OK, 0 rows affected (0.00 sec)

mysql> change master to master_user='repluser',master_password='replpass' for channel 'group_replication_recovery';
Query OK, 0 rows affected, 2 warnings (0.02 sec)

mysql> install plugin group_replication soname 'group_replication.so';
Query OK, 0 rows affected (0.01 sec)


mysql> set global group_replication_bootstrap_group=ON;
Query OK, 0 rows affected (0.00 sec)

mysql> START group_replication;
Query OK, 0 rows affected (1.07 sec)

mysql> set global group_replication_bootstrap_group=OFF;
Query OK, 0 rows affected (0.00 sec)

mysql> exit;


进入3307节点

mysql -S /usr/local/mysql5.7/data/3307/mysqld.sock

mysql> set sql_log_bin=0;
Query OK, 0 rows affected (0.00 sec)

mysql> grant replication slave,replication client on *.* to 'repluser'@'%' identified by 'replpass';
Query OK, 0 rows affected, 1 warning (0.00 sec)

mysql> flush privileges;
Query OK, 0 rows affected (0.00 sec)

mysql> set sql_log_bin=1;
Query OK, 0 rows affected (0.00 sec)

mysql> change master to master_user='repluser',master_password='replpass' for channel 'group_replication_recovery';
Query OK, 0 rows affected, 2 warnings (0.03 sec)

mysql> install plugin group_replication soname 'group_replication.so';
Query OK, 0 rows affected (0.00 sec)

mysql> START group_replication;
Query OK, 0 rows affected (5.59 sec)

mysql> exit;


进入3308节点:

mysql -S /usr/local/mysql5.7/data/3308/mysqld.sock

mysql> set sql_log_bin=0;
Query OK, 0 rows affected (0.00 sec)

mysql> grant replication slave,replication client on *.* to 'repluser'@'%' identified by 'replpass';
Query OK, 0 rows affected, 1 warning (0.00 sec)

mysql> flush privileges;
Query OK, 0 rows affected (0.00 sec)

mysql> set sql_log_bin=1;
Query OK, 0 rows affected (0.00 sec)

mysql> change master to master_user='repluser',master_password='replpass' for channel 'group_replication_recovery';
Query OK, 0 rows affected, 2 warnings (0.03 sec)

mysql> install plugin group_replication soname 'group_replication.so';
Query OK, 0 rows affected (0.01 sec)

mysql> start group_replication;
Query OK, 0 rows affected (2.25 sec)

进入三个任意一个节点验证:

mysql> select * from performance_schema.replication_group_members;
+---------------------------+--------------------------------------+-------------------------+-------------+--------------+
| CHANNEL_NAME              | MEMBER_ID                            | MEMBER_HOST             | MEMBER_PORT | MEMBER_STATE |
+---------------------------+--------------------------------------+-------------------------+-------------+--------------+
| group_replication_applier | 7b29387c-6f81-11e8-abac-00163e06e59d | iZm5e7kkxs23uutsa9dbl5Z |        3306 | ONLINE       |
| group_replication_applier | 8badfa8f-6f81-11e8-aec3-00163e06e59d | iZm5e7kkxs23uutsa9dbl5Z |        3307 | ONLINE       |
| group_replication_applier | 90f24e32-6f81-11e8-aef5-00163e06e59d | iZm5e7kkxs23uutsa9dbl5Z |        3308 | ONLINE       |
+---------------------------+--------------------------------------+-------------------------+-------------+--------------+
3 rows in set (0.00 sec)

5.数据同步测试

进入到3306节点

mysql> create table tb_stu(id int not null primary key auto_increment,name varchar(50));
Query OK, 0 rows affected (0.02 sec)

mysql> select * from tb_stu;
+----+------+
| id | name |
+----+------+
|  1 | tom  |
+----+------+
1 row in set (0.00 sec)

进入3307节点:

mysql> select * from tb_stu;
+----+------+
| id | name |
+----+------+
|  1 | tom  |
+----+------+
1 row in set (0.00 sec)

同样进入3308节点验证:

mysql> select * from tb_stu;
+----+------+
| id | name |
+----+------+
|  1 | tom  |
+----+------+
1 row in set (0.00 sec)

说明三个节点能够进行数据同步。

加入我们在3307或者3308节点插入数据:

mysql>  insert tb_stu(id,name) values (1,'tom');
ERROR 1290 (HY000): The MySQL server is running with the --super-read-only option so it cannot execute this statement

报错原因是:3306是主节点,3307和3308是从节点,单主模式下只能在主节点写入,从节点只能查询数据。

下面我们在进行多主节点修改和增加节点。

© 著作权归作者所有

共有 人打赏支持
日落北极
粉丝 6
博文 34
码字总数 24314
作品 0
海淀
程序员
mysql8.0初探:(二)MySQL Group Replication-MGR集群简介

简介 MySQL Group Replication(简称MGR)字面意思是mysql组复制的意思,但其实他是一个高可用的集群架构,暂时只支持mysql5.7和mysql8.0版本. 是MySQL官方于2016年12月推出的一个全新的高可用...

arthur376
05/08
0
0
数据库Mysql5.7 MGR集群的搭建

最近看了一下mysql5.7的MGR集群挺不错的,有单主和多主模式,于是乎搭建测试了一下效果还不错,我指的不错是搭建和维护方面都比较简单。网上绝大多数都是单主模式,当然我这里也是,为了加深...

English0523
2017/09/04
0
0
MySQL · 引擎特性 · Group Replication内核解析

背景 为了创建高可用数据库系统,传统的实现方式是创建一个或多个备用的数据库实例,原有的数据库实例通常称为主库master,其它备用的数据库实例称为备库或从库slave。当master故障无法正常工...

阿里云RDS-数据库内核组
2017/08/02
0
0
mysql5.7 MGR集群搭建

微信公共号 mysql5.7 MGR集群搭建部署 此文章由队员(谆谆)拟写 此文章来自 乌龟运维 官网 wuguiyunwei.com QQ群 602183872 最近看了一下mysql5.7的MGR集群挺不错的,有单主和多主模式,于是...

乌龟运维
2017/06/08
0
0
MySQL高可用性分析

版权声明:本文由易固武原创文章,转载请注明出处: 文章原文链接:https://www.qcloud.com/community/article/203 来源:腾云阁 https://www.qcloud.com/community MySQL数据库是目前开源应用...

偶素浅小浅
2016/11/11
4
0

没有更多内容

加载失败,请刷新页面

加载更多

sed命令扩展使用操作

打印某行到某行之间的内容 假若文件test.txt的内容是: ertfff**[abcfd]123324444[rty]**fgfgf 怎么能截取 [abcfd]123324444[rty] 这一部分出来呢? 操作命令: 知道开始行和结...

野雪球
36分钟前
1
0
JVM内存笔记

Hotspot JVM 中的 Java 线程与原生操作系统线程有直接的映射关系。当线程本地存储、缓 冲区分配、同步对象、栈、程序计数器等准备好以后,就会创建一个操作系统原生线程。 Java 线程结束,原...

凌渡
42分钟前
1
0
284. Peeking Iterator

Description Tag: Design Difficulties: Medium Given an Iterator class interface with methods: next() and hasNext(), design and implement a PeekingIterator that support the pee......

52iSilence7
44分钟前
1
0
防止快速重复点击的两种思维

防止重复执行的两种思维 场景 下单时,提交按钮,因为网络卡顿或者手快重复点击,导致重复提交订单; 微博,更新个人状态或发表评论时,快速多次点击[发送]按钮,导致相同的信息发送多次. 解决思路 ...

黄威
今天
0
0
在windows环境下使用Virtualbox虚拟Debian系统来运行Docker

标题绕口。 我之前一直使用 Virtualbox 和 homestead 来运行我的 PHP 开发环境。最近决心开始尝试 DevOps,使得开发、部署容器化,来化解人为操作失误和环境不兼容等问题造成的各种损失。就打...

zgldh
今天
0
0

没有更多内容

加载失败,请刷新页面

加载更多

返回顶部
顶部