MySQL - MySQL Cluster クラスタ構築の詳細説明 (RPM インストール パッケージ デュアル管理センターベース)

# yum -y remove mysql  
# rpm -qa | grep mysql*  
# rpm -e --nodeps mysql-libs-5.1.71-1.el6.x86_64

存储节点：# mkdir /var/lib/mysql/data   
管理节点：# mkdir /var/lib/mysql-cluster    SQL节点：可不用  文件夹授权  
进程DIR：# mkdir /var/run/mysqld                
使用如下的命令来变更权限保证可写入：  
# chmod -R 1777 /var/lib/mysql  
# chmod -R 1777 /var/run/mysqld  
# chmod -R 1777 /var/lib/mysql-cluster

首先解压MySQL-Cluster-gpl-7.4.2-1.el6.x86_64.rpm-bundle.tar  
# tar xvf MySQL-Cluster-gpl-7.4.2-1.el6.x86_64.rpm-bundle.tar  
然后执行如下命令安装  
# rpm -ivh MySQL-Cluster-server-gpl-7.3.4-1.el6.x86_64.rpm  
# rpm -ivh MySQL-Cluster-client-gpl-7.3.4-1.el6.x86_64.rpm

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A RANDOM PASSWORD HAS BEEN SET FOR THE MySQL root USER !  
You will find that password in '/root/.mysql_secret'.  
You must change that password on your first connect,  
no other statement but 'SET PASSWORD' will be accepted.  
See the manual for the semantics of the 'password expired' flag.  
Also, the account for the anonymous user has been removed.  
In addition, you can run:  
/usr/bin/mysql_secure_installation  
which will also give you the option of removing the test database.  
This is strongly recommended for production servers.  
-----------------------------------------------------------

# cd /var/lib/mysql-cluster  
# vi config.ini

[computer]  
Id=mgr-server-01  
HostName=192.168.100.218  
[mgm default]  
datadir=/var/lib/mysql-cluster  
[mgm]  
HostName=192.168.100.218  
NodeId=60  
[mgm]  
HostName=192.168.100.217  
NodeId=61  
[ndbd default]  
NoOfReplicas = 2  
DataMemory = 50M  
IndexMemory = 50M  
MaxNoOfTables = 1024  
MaxNoOfAttributes = 5000000  
MaxNoOfOrderedIndexes = 10000  
[ndbd]  
HostName=192.168.100.217  
DataDir=/var/lib/mysql  
NodeId=1  
[ndbd]  
HostName=192.168.100.218  
DataDir=/var/lib/mysql  
NodeId=2  
[mysqld]  
HostName=192.168.100.217  
NodeId=81  
[mysqld]  
HostName=192.168.100.218  
NodeId=82

[computer]  
Id=mgr-server-02  
HostName=192.168.100.217  
[mgm default]  
datadir=/var/lib/mysql-cluster  
[mgm]  
HostName=192.168.100.218  
NodeId=60  
[mgm]  
HostName=192.168.100.217  
NodeId=61  
[ndbd default]  
NoOfReplicas = 2  
DataMemory = 50M  
IndexMemory = 50M  
MaxNoOfTables = 1024  
MaxNoOfAttributes = 5000000  
MaxNoOfOrderedIndexes = 10000  
[ndbd]  
HostName=192.168.100.217  
DataDir=/var/lib/mysql  
NodeId=1  
[ndbd]  
HostName=192.168.100.218  
DataDir=/var/lib/mysql  
NodeId=2  
[mysqld]  
HostName=192.168.100.217  
NodeId=81  
[mysqld]  
HostName=192.168.100.218  
NodeId=82

[client]  
socket=/var/lib/mysql/mysql.sock  
[mysqld]  
max_connections=100  
datadir=/var/lib/mysql  
socket=/var/lib/mysql/mysql.sock  
ndbcluster  
ndb-connectstring=192.168.100.218,192.168.100.217  
[mysqld_safe]  
log-error=/var/log/mysqld.log  
#pid-file=/var/run/mysqld/mysqld.pid  
pid-file=/var/lib/mysql/mysqld.pid  
[mysql_cluster]  
ndb-connectstring=192.168.100.218,192.168.100.217

ndb_mgm> show  
Connected to Management Server at: 192.168.100.218:1186  
Cluster Configuration  
---------------------  
[ndbd(NDB)] 2 node(s)  
id=1 @192.168.100.217 (mysql-5.6.21 ndb-7.4.2, Nodegroup: 0)  
id=2 @192.168.100.218 (mysql-5.6.21 ndb-7.4.2, Nodegroup: 0, *)  
[ndb_mgmd(MGM)] 1 node(s)  
id=60 @192.168.100.218 (mysql-5.6.21 ndb-7.4.2)  
id=61 @192.168.100.217 (mysql-5.6.21 ndb-7.4.2)  
[mysqld(API)] 2 node(s)  
id=81 @192.168.100.217 (mysql-5.6.21 ndb-7.4.2)  
id=82 @192.168.100.218 (mysql-5.6.21 ndb-7.4.2)

ndb_mgm> show  
Cluster Configuration  
---------------------  
[ndbd(NDB)] 2 node(s)  
id=1 @192.168.100.217 (mysql-5.6.21 ndb-7.4.2, Nodegroup: 0)  
id=2 @192.168.100.218 (mysql-5.6.21 ndb-7.4.2, Nodegroup: 0, *)  
[ndb_mgmd(MGM)] 1 node(s)  
id=60 @192.168.100.218 (mysql-5.6.21 ndb-7.4.2)  
id=61 @192.168.100.217 (mysql-5.6.21 ndb-7.4.2)  
[mysqld(API)] 2 node(s)  
id=81 (not connected, accepting connect from 192.168.100.217)  
id=82 @192.168.100.218 (mysql-5.6.21 ndb-7.4.2)

use mysql;  
delete from user;  
grant all on *.* to root@'%' identified by "111111" with grant option;  
flush privileges;  
quit;

然后，可以使用明文密码登陆了
几台装有SQL数据节点的服务器皆需要执行一遍上述命令；

6、当上面步奏都操作完成以后，测试cluster是否正常工作
1）简单功能测试
在218上进入mysql后执行如下：

create database clustertest;  
use clustertest;   
CREATE TABLE testtable(Count INT) ENGINE=NDBCLUSTER;

insert into testtable values (1);

select * from testtable;

# pgrep mysqld  
# ps aux | grep nbdb

ndb_mgmd -f /var/lib/mysql-cluster/config.ini  
ndbd  
mysqld_safe --defaults-file=/usr/my.cnf --explicit_defaults_for_timestamp &

chkconfig --level 123456 mysql off

chkconfig --level 123456 iptables off