MySQL-Cluster-7.4 for centos 6.9 64bit

MySQL-Cluster-7.5 for centos 6.9 64bit

一、安装要求

1、安装环境：

系统环境：CentOS release 6.9 64bit  
软件名称：MySQL-Cluster-server-gpl-7.4.15-1.el6.x86_64.rpm，MySQL-Cluster-client-gpl-7.4.15-1.el6.x86_64.rpm
软件安装位置：/usr/bin/mysql
数据存放位置：/var/lib/mysql
日志存放位置：/var/log/mysql

二、集群设计
首先设计集群的安装分配方式，共需要5台服务器，服务器分配如下：

管理节点：    192.168.99.35
    数据节点1：   192.168.99.36
    数据节点2：   192.168.99.37
    sql节点1：     192.168.99.38
    sql节点2：     192.168.99.39

注意：目前这种设计存在的问题是管理节点是单点的。

三、安装部署

1、在五台服务器上/home创建mysql目录，下载如下两个软件包，建议下载后直接scp过去
[[email protected] ~]# mkdir /home/mysql
[[email protected] ~]# cd /home/mysql/
[[email protected] mysql]#wget http://mirrors.sohu.com/mysql/MySQL-Cluster-7.4/MySQL-Cluster-server-gpl-7.4.15-1.el6.x86_64.rpm
[[email protected] mysql]#wget http://mirrors.sohu.com/mysql/MySQL-Cluster-7.4/MySQL-Cluster-client-gpl-7.4.15-1.el6.x86_64.rpm

2、清除五台服务器上的旧版本mysql
查询遗留了哪些mysql
rpm -qa | grep mysql
通过yum方式清除mysql
yum -y remove mysql*
查询清除是否完成
rpm -qa | grep mysql

3、在五台服务器上安装MySQL-Cluster-server-gpl-7.4.15-1.el6.x86_64及MySQL-Cluster-client-gpl-7.4.15-1.el6.x86_64
yum -y install MySQL-Cluster-server-gpl-7.4.15-1.el6.x86_64.rpm MySQL-Cluster-client-gpl-7.4.15-1.el6.x86_64.rpm

备注：整个cluster安装后的初次超级账户密码存在/root/.mysql_secret这个文件当中

4、创建文件夹及进行授权

管理节点创建文件夹并授权
mkdir /var/lib/mysql-cluster  /var/run/mysqld/  
chown mysql.mysql -R /var/lib/mysql-cluster  /var/run/mysqld/

数据节点创建文件夹并授权：
mkdir /var/run/mysqld
chown mysql.mysql -R /var/lib/mysql /var/run/mysqld/

SQL节点创建文件夹并授权
mkdir /var/run/mysqld
chown mysql.mysql -R /var/lib/mysql /var/run/mysqld/

5、配置管理节点配置文件
vim /var/lib/mysql-cluster/config.ini
[ndbd default]
NoOfReplicas=2                                   #数据写入数量。2表示两份
DataMemory=500M                               #配置数据存储可使用的内存
IndexMemory=100M                              #索引给100M

#manager options:                                    #管理节点
[ndb_mgmd]
id=1
datadir=/var/lib/mysql-cluster                     #管理节点的日志
HostName=192.168.99.35                           #管理节点的IP地址。本机IP

#data node options:                                    #数据存储节点
[ndbd]
HostName=192.168.99.36
DataDir=/var/lib/mysql                            #mysql数据存储路径
id=2
[ndbd]
HostName=192.168.99.37
DataDir=/var/lib/mysql                            #mysql数据存储路径
id=3

#SQLnode options:                              #关于SQL节点
[mysqld]
HostName=192.168.99.38
id=4
[mysqld]
HostName=192.168.99.39
id=5

6、配置数据节点配置文件
vim  /etc/my.cnf
[mysqld]
datadir=/var/lib/mysql                                                  #mysql数据存储路径
ndbcluster                                                                  #启动ndb引擎
ndb-connectstring=192.168.99.35                                  # 管理节点IP地址
[mysqld_safe]  
log-error=/var/log/mysqld.log
pid-file=/var/run/mysqld/mysqld.pid
[mysql_cluster]
ndb-connectstring=192.168.99.35                              #管理节点IP地址

7、配置sql节点配置文件
vim /etc/my.cnf    
[mysqld]
ndbcluster                                                             #启动ndb引擎
ndb-connectstring=192.168.99.35                              # 管理节点IP地址
[mysqld_safe]   
log-error=/var/log/mysqld.log
pid-file=/var/run/mysqld/mysqld.pid
[mysql_cluster]  
ndb-connectstring=192.168.99.35                               #管理节点IP地址

说明：数据节点和SQL结点配置文件区别 ，就多一行
数据结点有：datadir=/var/lib/mysql                   #mysql数据存储路径。

四、启动mysql集群
初次启动命令以及用户密码更改调整：（请严格按照次序启动）
先启动：管理结点服务->数据结点服务->sql结点服务
关闭：关闭管理结点服务，关闭管理结点服务后，nbdb数据结点服务会自动关闭->手动把sql结点服务关了。
执行初次启动前请先确认 将两台机器的防火墙关闭（service iptables stop 或者 设定 防火墙端口可通，两个端口即通讯端口1186、数据端口3306 )

1、在99.35上启动管理节点
ndb_mgmd -f/var/lib/mysql-cluster/config.ini        # mysql cluster 后台运行进程
[[email protected] mysql-cluster]# ndb_mgmd -f/var/lib/mysql-cluster/config.ini
MySQL Cluster Management Server mysql-5.6.36 ndb-7.4.15
2017-06-05 20:18:55 [MgmtSrvr] INFO     -- The default config directory ‘/usr/mysql-cluster‘ does not exist. Trying to create it...
2017-06-05 20:18:55 [MgmtSrvr] INFO     -- Sucessfully created config directory
2017-06-05 20:18:55 [MgmtSrvr] WARNING  -- at line 8: [MGM] id is deprecated, use NodeId instead
2017-06-05 20:18:55 [MgmtSrvr] WARNING  -- at line 16: [DB] id is deprecated, use NodeId instead
2017-06-05 20:18:55 [MgmtSrvr] WARNING  -- at line 20: [DB] id is deprecated, use NodeId instead
2017-06-05 20:18:55 [MgmtSrvr] WARNING  -- at line 25: [API] id is deprecated, use NodeId instead
2017-06-05 20:18:55 [MgmtSrvr] WARNING  -- at line 28: [API] id is deprecated, use NodeId instead
2017-06-05 20:18:55 [MgmtSrvr] WARNING  -- at line 8: [MGM] id is deprecated, use NodeId instead
2017-06-05 20:18:55 [MgmtSrvr] WARNING  -- at line 16: [DB] id is deprecated, use NodeId instead
2017-06-05 20:18:55 [MgmtSrvr] WARNING  -- at line 20: [DB] id is deprecated, use NodeId instead
2017-06-05 20:18:55 [MgmtSrvr] WARNING  -- at line 25: [API] id is deprecated, use NodeId instead
2017-06-05 20:18:55 [MgmtSrvr] WARNING  -- at line 28: [API] id is deprecated, use NodeId instead
查看启动是否成功
[[email protected] mysql-cluster]# netstat  -antup | grep 1186
tcp        0      0 0.0.0.0:1186                0.0.0.0:*                   LISTEN      5075/ndb_mgmd       
tcp        0      0 127.0.0.1:47322             127.0.0.1:1186              ESTABLISHED 5075/ndb_mgmd       
tcp        0      0 127.0.0.1:1186              127.0.0.1:47322             ESTABLISHED 5075/ndb_mgmd

2、在99.36及99.37上启动数据节点，第一次启动记得带上初始化参数initial
[[email protected] mysql]# ndbd --initial
2017-06-05 20:21:28 [ndbd] INFO     -- Angel connected to ‘192.168.99.35:1186‘
2017-06-05 20:21:28 [ndbd] INFO     -- Angel allocated nodeid: 2
[[email protected] mysql]#

[[email protected] mysql]# ndbd --initial
2017-06-05 20:21:47 [ndbd] INFO     -- Angel connected to ‘192.168.99.35:1186‘
2017-06-05 20:21:47 [ndbd] INFO     -- Angel allocated nodeid: 3
[[email protected] mysql]#

3、在99.38及99.39上启动sql节点
[[email protected] mysql]# 170605 20:23:23 mysqld_safe Logging to ‘/var/log/mysqld.log‘.
170605 20:23:23 mysqld_safe Starting mysqld daemon with databases from /var/lib/mysql

[[email protected] mysql]# 170605 20:23:32 mysqld_safe Logging to ‘/var/log/mysqld.log‘.
170605 20:23:32 mysqld_safe Starting mysqld daemon with databases from /var/lib/mysql

4、在99.35上登录管理节点查看集群状态
[[email protected] mysql-cluster]# ndb_mgm
-- NDB Cluster -- Management Client --
ndb_mgm> show
Connected to Management Server at: localhost:1186
Cluster Configuration
---------------------
[ndbd(NDB)]    2 node(s)
id=2    @192.168.99.36  (mysql-5.6.36 ndb-7.4.15, Nodegroup: 0, *)
id=3    @192.168.99.37  (mysql-5.6.36 ndb-7.4.15, Nodegroup: 0)

[ndb_mgmd(MGM)]    1 node(s)
id=1    @192.168.99.35  (mysql-5.6.36 ndb-7.4.15)

[mysqld(API)]    2 node(s)
id=4    @192.168.99.38  (mysql-5.6.36 ndb-7.4.15)
id=5    @192.168.99.39  (mysql-5.6.36 ndb-7.4.15)

ndb_mgm>

5、在99.38及99.39sql节点添加mysql用户
[[email protected] mysql]# cat /root/.mysql_secret
# The random password set for the root user at Mon Jun  5 19:55:57 2017 (local time): MsIBXVtxWT4He5JF

[[email protected] mysql]# mysql -u root -pMsIBXVtxWT4He5JF
Warning: Using a password on the command line interface can be insecure.
Welcome to the MySQL monitor.  Commands end with ; or \g.
Your MySQL connection id is 2
Server version: 5.6.36-ndb-7.4.15-cluster-gpl

Copyright (c) 2000, 2017, Oracle and/or its affiliates. All rights reserved.

Oracle is a registered trademark of Oracle Corporation and/or its
affiliates. Other names may be trademarks of their respective
owners.

Type ‘help;‘ or ‘\h‘ for help. Type ‘\c‘ to clear the current input statement.

mysql> show databases;
ERROR 1820 (HY000): You must SET PASSWORD before executing this statement
mysql> set password for ‘root‘@‘localhost‘=password(‘123456‘);
Query OK, 0 rows affected (0.00 sec)

mysql> quit
Bye
[[email protected] mysql]# mysql -u root -p123456
Warning: Using a password on the command line interface can be insecure.
Welcome to the MySQL monitor.  Commands end with ; or \g.
Your MySQL connection id is 3
Server version: 5.6.36-ndb-7.4.15-cluster-gpl MySQL Cluster Community Server (GPL)

Copyright (c) 2000, 2017, Oracle and/or its affiliates. All rights reserved.

Oracle is a registered trademark of Oracle Corporation and/or its
affiliates. Other names may be trademarks of their respective
owners.

Type ‘help;‘ or ‘\h‘ for help. Type ‘\c‘ to clear the current input statement.

mysql> grant all privileges on *.* to [email protected]"%" identified by "123456";
Query OK, 0 rows affected (0.00 sec)

mysql> flush privileges;
Query OK, 0 rows affected (0.01 sec)

mysql>

6、外部链接99.38sql节点进行创建数据库及数据表测试
mysql -ucluster -p123456 -h113.106.99.38
mysql> create database db;
mysql> use db;
mysql> create table test(id int) engine=ndb;
mysql> insert into test values(10);
mysql> insert into test values(11);
mysql> select * from test;
+------+
| id   |
+------+
|   11 |
|   10 |
+------+
2 rows in set (0.00 sec)
mysql>

7、外部链接登录99.39进行查看及插入数据测试
mysql -ucluster -p123456 -h113.106.99.39
mysql> show databases;
mysql> use db;
mysql> insert into test values(12);
Query OK, 1 row affected (0.01 sec)
mysql> insert into test values(13);
Query OK, 1 row affected (0.00 sec)

mysql> select * from test;
+------+
| id   |
+------+
|   10 |
|   12 |
|   13 |
|   11 |
+------+
4 rows in set (0.01 sec)
mysql>

五、关闭mysql集群
关闭mysql集群顺序： 关闭管理节点服务-》 关闭管理节点时，数据结点服务自动关闭 –》 需要手动关闭SQL结点服务

1、关闭管理节点
ndb_mgm
ndb_mgm> shutdown
Node 2: Cluster shutdown initiated
Node 3: Cluster shutdown initiated
Node 2: Node shutdown completed.
Node 3: Node shutdown completed.
3 NDB Cluster node(s) have shutdown.
Disconnecting to allow management server to shutdown.
查看管理节点是否已关闭
[[email protected] mysql-cluster]# ps -axu | grep  ndbd   
Warning: bad syntax, perhaps a bogus ‘-‘? See /usr/share/doc/procps-3.2.8/FAQ
root      5127  0.0  0.0 103328   876 pts/0    S+   20:44   0:00 grep ndbd
[[email protected] mysql-cluster]#

查看数据节点是否关闭
[[email protected] mysql]# ps -axu | grep  ndbd
Warning: bad syntax, perhaps a bogus ‘-‘? See /usr/share/doc/procps-3.2.8/FAQ
root      2243  0.0  0.0 103328   872 pts/0    S+   21:09   0:00 grep ndbd
[[email protected] mysql]#

2、手动关闭sql节点
[[email protected] mysql]# mysqladmin -uroot -p123456 shutdown
Warning: Using a password on the command line interface can be insecure.
170605 20:45:02 mysqld_safe mysqld from pid file /var/run/mysqld/mysqld.pid ended
[1]+  Done                    mysqld_safe --defaults-file=/etc/my.cnf

或方法二采用暴力kill方式关闭
ps -axu |grep mysql
kill -9
kill -9
ps -axu |grep mysql

六、再次启动mysql集群进行故障切换测试
1、启动管理节点
[[email protected] mysql-cluster]# ndb_mgm
-- NDB Cluster -- Management Client --
ndb_mgm> show
Connected to Management Server at: localhost:1186
Cluster Configuration
---------------------
[ndbd(NDB)]    2 node(s)
id=2 (not connected, accepting connect from 192.168.99.36)
id=3 (not connected, accepting connect from 192.168.99.37)

[ndb_mgmd(MGM)]    1 node(s)
id=1    @192.168.99.35  (mysql-5.6.36 ndb-7.4.15)

[mysqld(API)]    2 node(s)
id=4 (not connected, accepting connect from 192.168.99.38)
id=5 (not connected, accepting connect from 192.168.99.39)

2、启动数据节点

[[email protected] mysql]# ndbd
2017-06-05 20:47:25 [ndbd] INFO     -- Angel connected to ‘192.168.99.35:1186‘
2017-06-05 20:47:25 [ndbd] INFO     -- Angel allocated nodeid: 2
[[email protected] mysql]#

[[email protected] mysql]# ndbd
2017-06-05 20:47:28 [ndbd] INFO     -- Angel connected to ‘192.168.99.35:1186‘
2017-06-05 20:47:28 [ndbd] INFO     -- Angel allocated nodeid: 3
[[email protected] mysql]#

注意：非初始化启动记得不要加initial参数

3、启动sql节点
[[email protected] mysql]# mysqld_safe --defaults-file=/etc/my.cnf &
[1] 2014
[[email protected] mysql]# 170605 20:49:49 mysqld_safe Logging to ‘/var/log/mysqld.log‘.
170605 20:49:49 mysqld_safe Starting mysqld daemon with databases from /var/lib/mysql
[[email protected] mysql]#

[[email protected] mysql]# mysqld_safe --defaults-file=/etc/my.cnf &
[1] 1740
[[email protected] mysql]# 170605 20:49:57 mysqld_safe Logging to ‘/var/log/mysqld.log‘.
170605 20:49:57 mysqld_safe Starting mysqld daemon with databases from /var/lib/mysql
[[email protected] mysql]#

4、通过外部服务器分别登录两台sql节点进行查询
[[email protected] ~]$ mysql -ucluster -p123456 -h113.106.99.38
mysql> use db;
Reading table information for completion of table and column names
You can turn off this feature to get a quicker startup with -A
Database changed
mysql> select * from test;
+------+
| id   |
+------+
|   12 |
|   13 |
|   11 |
|   10 |
+------+
4 rows in set (0.00 sec)
mysql>

[[email protected] ~]$ mysql -ucluster -p123456 -h113.106.99.39
mysql> use db;
Reading table information for completion of table and column names
You can turn off this feature to get a quicker startup with -A

Database changed
mysql> select * from test;
+------+
| id   |
+------+
|   12 |
|   13 |
|   11 |
|   10 |
+------+
4 rows in set (0.00 sec)

mysql>

5、模拟数据节点99.36故障，在管理节点查询集群状态并在两台sql节点进行查询
[[email protected] mysql]# ps -aux | grep ndbd
Warning: bad syntax, perhaps a bogus ‘-‘? See /usr/share/doc/procps-3.2.8/FAQ
root      2141  0.0  0.0  27292  2640 ?        Ss   20:47   0:00 ndbd
root      2142  1.0 27.5 3155544 1082592 ?     Sl   20:47   0:04 ndbd
root      2187  0.0  0.0 103328   876 pts/0    S+   20:54   0:00 grep ndbd
[[email protected] mysql]# kill -9 2141
[[email protected] mysql]# kill -9 2142

在管理节点查看可以看到99.36这台数据节点断开了链接
ndb_mgm> show
Cluster Configuration
---------------------
[ndbd(NDB)]    2 node(s)
id=2 (not connected, accepting connect from 192.168.99.36)
id=3    @192.168.99.37  (mysql-5.6.36 ndb-7.4.15, Nodegroup: 0, *)

[ndb_mgmd(MGM)]    1 node(s)
id=1    @192.168.99.35  (mysql-5.6.36 ndb-7.4.15)

[mysqld(API)]    2 node(s)
id=4    @192.168.99.38  (mysql-5.6.36 ndb-7.4.15)
id=5    @192.168.99.39  (mysql-5.6.36 ndb-7.4.15)

ndb_mgm>

sql节点查询显示正常
[[email protected] ~]$ mysql -ucluster -p123456 -h113.106.99.38
mysql> use db;
Reading table information for completion of table and column names
You can turn off this feature to get a quicker startup with -A

Database changed
mysql> select * from test;
+------+
| id   |
+------+
|   12 |
|   13 |
|   11 |
|   10 |
+------+
4 rows in set (0.00 sec)

[[email protected] ~]$ mysql -ucluster -p123456 -h113.106.99.39
mysql> use db;
Reading table information for completion of table and column names
You can turn off this feature to get a quicker startup with -A

Database changed
mysql> select * from test;
+------+
| id   |
+------+
|   12 |
|   13 |
|   11 |
|   10 |
+------+
4 rows in set (0.00 sec)

mysql>

6、重新启动数据节点99.36，并在管理节点查看状态
[[email protected] mysql]# ndbd
2017-06-05 20:58:05 [ndbd] INFO     -- Angel connected to ‘192.168.99.35:1186‘
2017-06-05 20:58:05 [ndbd] INFO     -- Angel allocated nodeid: 2
[[email protected] mysql]#

ndb_mgm> show
Cluster Configuration
---------------------
[ndbd(NDB)]    2 node(s)
id=2    @192.168.99.36  (mysql-5.6.36 ndb-7.4.15, starting, Nodegroup: 0)    #显示在初始化状态
id=3    @192.168.99.37  (mysql-5.6.36 ndb-7.4.15, Nodegroup: 0, *)

[ndb_mgmd(MGM)]    1 node(s)
id=1    @192.168.99.35  (mysql-5.6.36 ndb-7.4.15)

[mysqld(API)]    2 node(s)
id=4    @192.168.99.38  (mysql-5.6.36 ndb-7.4.15)
id=5    @192.168.99.39  (mysql-5.6.36 ndb-7.4.15)

已完成初始化的状态
ndb_mgm> show
Cluster Configuration
---------------------
[ndbd(NDB)]    2 node(s)
id=2    @192.168.99.36  (mysql-5.6.36 ndb-7.4.15, Nodegroup: 0)
id=3    @192.168.99.37  (mysql-5.6.36 ndb-7.4.15, Nodegroup: 0, *)

[ndb_mgmd(MGM)]    1 node(s)
id=1    @192.168.99.35  (mysql-5.6.36 ndb-7.4.15)

[mysqld(API)]    2 node(s)
id=4    @192.168.99.38  (mysql-5.6.36 ndb-7.4.15)
id=5    @192.168.99.39  (mysql-5.6.36 ndb-7.4.15)

ndb_mgm>

7、模拟sql节点99.38故障，在管理节点查询集群状态并在99.39sql节点进行查询
在99.38关闭sql节点
[[email protected] mysql]# mysqladmin -uroot -p123456 shutdown
Warning: Using a password on the command line interface can be insecure.
170605 21:01:02 mysqld_safe mysqld from pid file /var/run/mysqld/mysqld.pid ended
[1]+  Done                    mysqld_safe --defaults-file=/etc/my.cnf
[[email protected] mysql]#

在管理节点查看集群状态，显示99.38sql节点断开链接
ndb_mgm> show
Cluster Configuration
---------------------
[ndbd(NDB)]    2 node(s)
id=2    @192.168.99.36  (mysql-5.6.36 ndb-7.4.15, Nodegroup: 0)
id=3    @192.168.99.37  (mysql-5.6.36 ndb-7.4.15, Nodegroup: 0, *)

[ndb_mgmd(MGM)]    1 node(s)
id=1    @192.168.99.35  (mysql-5.6.36 ndb-7.4.15)

[mysqld(API)]    2 node(s)
id=4 (not connected, accepting connect from 192.168.99.38)
id=5    @192.168.99.39  (mysql-5.6.36 ndb-7.4.15)

ndb_mgm>

远程登录99.39节点查询

[[email protected] ~]$ mysql -ucluster -p123456 -h192.168.99.39
mysql> use db;
Reading table information for completion of table and column names
You can turn off this feature to get a quicker startup with -A

Database changed
mysql> select * from test;
+------+
| id   |
+------+
|   10 |
|   12 |
|   13 |
|   11 |
+------+
4 rows in set (0.00 sec)

mysql>

时间： 2024-08-08 01:27:13

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双机冗余备份和负载均衡策略(Mysql Cluster入门安装配置指南)

MySQL Cluster 是MySQL适合于分布式计算环境的高实用.高冗余版本.它采用了NDB Cluster 存储引擎,允许在1个 Cluster 中运行多个MySQL服务器.MySQL Cluster 是一种技术,该技术允许在无共享的系统中部署“内存中”数据库的 Cluster .通过无共享体系结构,系统能够使用廉价的硬件,而且对软硬件无特殊要求.此外,由于每个组件有自己的内存和磁盘,不存在单点故障. 首先我们下载Mysql Cluster,下载链接地址为MySQL Cluster 7.1

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一.Mysql Cluster拓扑环境 Management:ClusterManager  222.9.9.161 ndb1:Clusterndb1    222.9.9.162 ndb2:Clusterndb2    222.9.9.163 sql1:Clustersql1    222.9.9.164 sql1:Clustersql2    222.9.9.165 拓扑中的服务器均为HyperV虚拟机镜像拷贝,仅有Centos 6.4操作系统,需要做一些基本配置 1.配置网卡IP地址(可直

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一.准备 1.准备服务器 建立有2个节点的MySQL CLuster体系,使用6台服务器建立Haproxy+mysql cluster( MySQL 集群) 体系 节点配置说明 节点 对应的IP和端口 Haproxy负载均衡(1个) centos 6.3 1.1.1.11  管理节点(1个) centos 6.3  1.1.1.30  SQL节点 (2个) centos 6.3  1.1.1.21  1.1.1.22  数据节点 (2个) centos 6.3  1.1.1.31  1.1.1.

MySQL Cluster部署文档

基本概念: NDB介绍 NDB" 是一种"内存中"的存储引擎,也是事务型存储引擎,具备ACID属性. 数据节点(Data Nodes) 用于存储集群的数据.实现底层数据存储的功能,保存Cluster 的数据.每一个NDB 节点保存完整数据的一部分(或者一份完整的数据,视节点数目和配置而定),在MySQL Cluster 里面叫做一个fragment.而每一个fragment,正常情况来讲都会在其他的主机上面有一份(或者多分)完全相同的镜像存在.这些都是通过配置来完成的,所以只

centos65安装简测mysql cluster 7.3.7

MySQLCluster 是sharednothing分布式架构,ndb存储引擎把数据放置于内存中.可以做到无单点故障.由运行于不同服务器上的的多种进程构成,组件包括SQL节点,NDBD数据节点,管理程序,以及(可能的)数据访问程序. 表(结构)存在SQL节点中.应用程序通过SQL节点访问这些数据表:NDBD数据节点用于保存数据:集群管理通过管理工具ndb_mgmd管理. MySQLCluster具有高可用性.高性能和可缩放性的Cluster数据管理.关于 Cluster中组件的关系可见下图:

centos7.5部署mysql cluster NDB总结

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MySQL Cluster(MySQL 集群) 初试（转）

作/译者:叶金荣(imysql#imysql.com>),来源:http://imysql.com,欢迎转载. 作/译者:叶金荣(Email: ),来源:http://imysql.cn,转载请注明作/译者和出处,并且不能用于商业用途,违者必究. MySQL Cluster 是MySQL适合于分布式计算环境的高实用.高冗余版本.它采用了NDB Cluster 存储引擎,允许在1个 Cluster 中运行多个MySQL服务器.在MyQL 5.0及以上的二进制版本中.以及与最新的Linux版本兼容的

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一.准备 1.准备服务器 计划建立有5个节点的MySQL CLuster体系,需要用到5台服务器,但是我们做实验时没有这么多机器,可以只用2台,我就是一台本机,一台虚拟机搭建了有5个节点的MySQL CLuster体系,将一个SQL节点一个数据节点一个SQL节点放在了一台服务器上(192.168.1.252),将另一个SQL节点和一个数据节点放在了另外一台服务器上(192.168.1.52). 节点配置说明 节点 对应的IP和端口 管理节点(1个) 192.168.1.252 SQL节点 (2个

mysql cluster安装部署

mysql cluster安装部署: http://www.178linux.com/36462 IPADDR=192.168.0.71 NETMASK=255.255.255.0 GATEWAY=192.168.0.1 DNS1=192.168.0.1 管理节点(MGM):  192.168.1.71 数据节点1(NDBD1):192.168.1.72 数据节点2(NDBD2):192.168.1.73 sql节点1(SQL1):   192.168.1.74 sql节点2(SQL2):