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Mysql集群mysql-cluster安装

2015-02-13

环境说明 系统环境:CentOS 6 5 mini(64bit) 软件版本:mysql-cluster-advanced-7 3 7-linux-glibc2 5-x86_64 tar gz IP地址: MGM:192 168 100 211 NDBD1:192 168 100 212 NDBD2:192 168 100 213 SQL1

环境说明

系统环境:CentOS 6.5 mini(64bit)
软件版本:mysql-cluster-advanced-7.3.7-linux-glibc2.5-x86_64.tar.gz

IP地址:
MGM:192.168.100.211

NDBD1:192.168.100.212

NDBD2:192.168.100.213

SQL1:192.168.100.214
SQL2:192.168.100.215


一、Cluster安装(五个节点)
安装相关依赖包
# yum -y install perl libaio ntpdate

关闭防火墙
# service iptables stop

删除系统自带mysql:
# rpm -qa | grep mysql
# rpm -e --allmatches --nodeps mysql-libs-5.1.71-1.el6.x86_64

解压缩软件
上传软件到/main目录
# cd /main
# tar zxvf mysql-cluster-advanced-7.3.7-linux-glibc2.5-x86_64.tar.gz
# mv mysql-cluster-advanced-7.3.7-linux-glibc2.5-x86_64 mysql

新建mysql用户及用户组
# groupadd mysql
# useradd -g mysql -s /usr/sbin/nologin mysql
# chown -R mysql:mysql /main/mysql

安装Cluster
# /main/mysql/scripts/mysql_install_db --user=mysql --basedir=/main/mysql --datadir=/main/mysql/data


二、节点配置
1.配置 MGM (MGM 节点)
删除自带的my.cnf文件
必须要删除自带的/etc/my.cnf,如果没有就不用删除
# rm -rf /etc/my.cnf

新建配置文件存放目录
# mkdir /main/mysql/etc
# chown mysql:mysql /main/mysql/etc

创建配置文件config.ini
# vi /main/mysql/etc/config.ini
[ndb_mgmd default]
datadir = /main/mysql/data

[ndbd default]
NoOfReplicas = 2
DataMemory = 80M
IndexMemory = 18M
datadir = /main/mysql/data

[ndb_mgmd]
NodeId = 1
HostName = 192.168.100.211

[ndbd]
NodeId = 11
HostName = 192.168.100.212
[ndbd]
NodeId = 12
HostName = 192.168.100.213

[mysqld]
NodeId = 81
HostName = 192.168.100.214
[mysqld]
NodeId = 82
HostName = 192.168.100.215


2.配置数据节点(NDBD1和NDBD2节点)
创建配置文件my.cnf
# vi /etc/my.cnf
[mysqld]
ndbcluster
ndb-connectstring = 192.168.100.211
[mysql_cluster]
ndb-connectstring = 192.168.100.211
3.配置SQL节点(SQL1和SQL2节点)
拷贝文件
# cp -p /main/mysql/support-files/mysql.server /etc/init.d/mysqld

创建配置文件my.cnf
# vi /etc/my.cnf
[mysqld]
basedir = /main/mysql
datadir = /main/mysql/data
ndbcluster
ndb-connectstring = 192.168.100.211
[mysql_cluster]
ndb-connectstring = 192.168.100.211


三、启动节点
启动需按如下顺序进行:MGM > NDBD > SQL

如下的启动方式只适合首次启动,或者备份、恢复或配置变化后重启时,否则将清空所有数据
1:启动 MGM (MGM 节点)
# mkdir -p /usr/local/mysql/mysql-cluster
# ndb_mgmd -f /main/mysql/etc/config.ini --initial

查看集群状态
# ndb_mgm -e show
Connected to Management Server at: localhost:1186
Cluster Configuration
---------------------
[ndbd(NDB)]     2 node(s)
id=11 (not connected, accepting connect from 192.168.100.212)
id=12 (not connected, accepting connect from 192.168.100.213)

[ndb_mgmd(MGM)] 1 node(s)
id=1    @192.168.100.211  (mysql-5.6.21 ndb-7.3.7)

[mysqld(API)]   2 node(s)
id=81 (not connected, accepting connect from 192.168.100.214)
id=82 (not connected, accepting connect from 192.168.100.215)

2:启动NDBD(NDBD1和NDBD2节点)
# ndbd --initial

3:启动SQL (SQL1和SQL2节点)

# service mysqld start

到此mysql-cluster安装完毕,客户端可以通过sql节点去连接mysql数据库。这里仅仅介绍了简单的安装配置过程,详细的配置说明敬请期待。


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