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HomeDatabaseMysql Tutorial搭建MySQL-Cluster集群架构

官方提供的MySQL-Cluster相关软件包已集成数据库服务端/客户端程序,因此可直接用来替换普通的MySQL服务端/客户端程序。如果已安

实验需求:部署MySQL集群,减少数据库单点故障。

实验方案:准备5台服务器,mgmd(192.168.100.1)作为管理节点,sqlA(192.168.100.2)和sqlB(192.168.100.3)作为SQL节点,ndbA(192.168.100.4)和ndbB(192.168.100.5)作为数据节点,这5个节点构成MySQL Cluster体系

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实施过程:

一.公共配置

1.所有节点上安装MySQL集群软件

1.1所有节点卸载冲突包

官方提供的MySQL-Cluster相关软件包已集成数据库服务端/客户端程序,因此可直接用来替换普通的MySQL服务端/客户端程序。如果已安装有普通版的mysql-server、mysql、MySQL-server、MySQL-client包,请先将其卸载(若没有则忽略):

# service  mysql  stop

# chkconfig  mysql  off

# rpm -e  --nodeps  MySQL-server  MySQL-client MySQL-shared MySQL-embedded MySQL-test MySQL-devel

 


1.2清理残余配置文件

mv  /etc/my.cnf  /etc/my.cnf.bak

useradd    mysql

 


1.3 所有节点安装MySQL-Cluster相关软件包

# tar xvf MySQL-Cluster-gpl-7.3.3-1.el6.x86_64.rpm-bundle.tar

MySQL-Cluster-shared-gpl-7.3.3-1.el6.x86_64.rpm

MySQL-Cluster-shared-compat-gpl-7.3.3-1.el6.x86_64.rpm

MySQL-Cluster-server-gpl-7.3.3-1.el6.x86_64.rpm

MySQL-Cluster-client-gpl-7.3.3-1.el6.x86_64.rpm

MySQL-Cluster-test-gpl-7.3.3-1.el6.x86_64.rpm

MySQL-Cluster-devel-gpl-7.3.3-1.el6.x86_64.rpm

MySQL-Cluster-embedded-gpl-7.3.3-1.el6.x86_64.rpm

rpm -Uvh MySQL-Cluster-*.rpm

2.在SQL节点(sqlA、sqlB)服务器上,修改MySQL数据库的root密码

3.SQL节点添加授权数据库用户,方便客户端访问

mysql>grant all on*.*to'root'@'192.168.100.%'identifiedby'123456';

二.配置管理节点 mgmd (192.168.100.1)

1.创建工作文件夹

# mkdir -p /var/log/mysql-cluster

 


2.创建配置文件

[ndbd default]:为所有的数据节点指定默认配置。

[ndbd]:指定某一个数据节点的配置。

[ndb_mgmd default]:为所有的管理节点指定默认配置。

[ndb_mgmd]:指定某一个管理节点的配置。

[mysqld default]:为所有的SQL节点指定默认配置。

[mysqld]:指定某一个SQL节点的配置。

# vim /etc/config.ini

[ndbd default]

NoOfReplicas=2//保留2份数据拷贝

DataMemory=80M                                //数据缓存大小

IndexMemory=18M                            //索引缓存大小

[ndb_mgmd]

nodeid=1//第1个管理节点的ID号

hostname=192.168.100.1//此管理节点的地址

datadir=/var/log/mysql-cluster            //此管理节点的工作目录

[mysqld]

nodeid=2//第1个SQL节点的ID号

hostname=192.168.100.2                    //第1个SQL节点的地址

[mysqld]

nodeid=3//第2个SQL节点的ID号

hostname=192.168.100.3                  //第2个SQL节点的地址

[ndbd]

nodeid=4//第1个数据节点的ID号

hostname=192.168.100.4              //第1个数据节点的地址

datadir=/mysql-cluster/data          //第1个数据节点的工作目录,,需创建

[ndbd]

nodeid=5//第2个数据节点的ID号

hostname=192.168.100.5//第2个数据节点的地址

datadir=/mysql-cluster/data        //第2个数据节点的工作目录,需创建

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