MySQL 5.7.20 （或指定版本）与 MySQL NDB Cluster 7.6.4 （或指定版本）集群

相关链接：

本文将讲述指定MySQL数据库版本的集群安装：
1. 详细的 MySQL 5.7.** 与 MySQL NDB Cluster 7.6.** 对应关系请查看：
  MySQL 集群 MySQL NDB Cluster 7.6.** 与 MySQL 5.7.** 对应版本说明
2. 详细的 MySQL 5.7.** 与 MySQL NDB Cluster 7.5.** 对应关系请查看：
  MySQL 集群 MySQL NDB Cluster 7.5.** 与 MySQL 5.7.** 对应版本说明
3. 本文以 MySQL 5.7.20 为例，对应 MySQL NDB Cluster 7.6.4（使用对应 MySQL NDB Cluster 7.5.8 也可，请自行选择）。
4. 所有 MySQL 安装文件均可在http://repo.mysql.com/中下载：
  1. yum 安装文件：http://repo.mysql.com/yum/。
  2. yum 安装文件MySQL NDB Cluster 7.5.**：http://repo.mysql.com/yum/mysql-cluster-7.5-community/。
  3. yum 安装文件MySQL NDB Cluster 7.5.** 的 CentOS版本：http://repo.mysql.com/yum/mysql-cluster-7.5-community/el/。
  4. yum 安装文件MySQL NDB Cluster 7.5.** 的 CentOS 7 版本：http://repo.mysql.com/yum/mysql-cluster-7.5-community/el/7/。
  5. yum 安装文件MySQL NDB Cluster 7.5.** 的 CentOS 7 64位版本：http://repo.mysql.com/yum/mysql-cluster-7.5-community/el/7/x86_64/。
一共四台服务器：
1. 管理节点：192.168.113.151
2. MySQL节点：192.168.113.152
3. 数据节点A：192.168.113.153
4. 数据节点B：192.168.113.154

在管理节点执行操作：
安装管理节点的可执行文件：
管理节点仅需要安装mysql-cluster-community-management-server即可：

mkdir -p /data/mysql
cd /data/mysql/
wget http://repo.mysql.com/yum/mysql-cluster-7.6-community/el/7/x86_64/mysql-cluster-community-management-server-7.6.4-1.el7.x86_64.rpm
yum -y install mysql-cluster-community-management-server*

在MySQL节点执行操作：
查看是否安装了maria：

rpm -qa | grep maria

卸载maria：

yum -y remove mariadb-libs

手动安装依赖perl-Class-MethodMaker（此依赖CentOS中不存在，无法自动找到，使用的是epel el7 x86_64）：

mkdir -p /data/mysql
cd /data/mysql/
wget https://mirrors.aliyun.com/epel/7/x86_64/Packages/p/perl-Class-MethodMaker-2.20-1.el7.x86_64.rpm
yum -y install perl-Class-MethodMaker-2.20-1.el7.x86_64.rpm

安装SQL节点的组件：
SLQ节点需要安装注意安装顺序：
mysql-cluster-community-common
mysql-cluster-community-libs
mysql-cluster-community-client
mysql-cluster-community-server
mysql-cluster-community-libs-compat

wget http://repo.mysql.com/yum/mysql-cluster-7.6-community/el/7/x86_64/mysql-cluster-community-common-7.6.4-1.el7.x86_64.rpm
wget http://repo.mysql.com/yum/mysql-cluster-7.6-community/el/7/x86_64/mysql-cluster-community-libs-7.6.4-1.el7.x86_64.rpm
wget http://repo.mysql.com/yum/mysql-cluster-7.6-community/el/7/x86_64/mysql-cluster-community-client-7.6.4-1.el7.x86_64.rpm
wget http://repo.mysql.com/yum/mysql-cluster-7.6-community/el/7/x86_64/mysql-cluster-community-server-7.6.4-1.el7.x86_64.rpm
wget http://repo.mysql.com/yum/mysql-cluster-7.6-community/el/7/x86_64/mysql-cluster-community-libs-compat-7.6.4-1.el7.x86_64.rpm

yum -y install mysql-cluster-community-common*
yum -y install mysql-cluster-community-libs*
yum -y install mysql-cluster-community-client*
yum -y install mysql-cluster-community-server*
yum -y install mysql-cluster-community-libs-compat*

开启数据库：

systemctl start mysqld.service

已默认打开开机自启。
查看root默认密码：

[root@CentOS-1804-MySQL-2 mysql]# grep 'temporary password' /var/log/mysqld.log
2018-10-20T17:20:55.552284Z 1 [Note] A temporary password is generated for root@localhost: JuZUfg+RX8uf

初次登录修改密码：
下面已显示 MySQL 版本为 5.7.20，MySQL NDB Cluster版本为7.6.4。

[root@CentOS-1804-MySQL-2 mysql]# mysql -uroot -p
Enter password: 
Welcome to the MySQL monitor.  Commands end with ; or \g.
Your MySQL connection id is 3
Server version: 5.7.20-ndb-7.6.4-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> ALTER USER 'root'@'localhost' IDENTIFIED BY 'MyNewPass4!';
Query OK, 0 rows affected (0.00 sec)

mysql>

设置远程连接密码：

GRANT ALL PRIVILEGES ON *.* TO 'root'@'%' IDENTIFIED BY 'Abc,123.456+';

打开3306端口：

firewall-cmd --zone=public --add-port=3306/tcp --permanent
systemctl restart firewalld.service
firewall-cmd --list-ports

在数据节点A、数据节点B执行操作：
安装数据节点的可执行文件：

mkdir -p /data/mysql
cd /data/mysql/
wget http://repo.mysql.com/yum/mysql-cluster-7.6-community/el/7/x86_64/mysql-cluster-community-data-node-7.6.4-1.el7.x86_64.rpm
yum -y install mysql-cluster-community-data-node*

NDB集群的初始配置：

在MySQL节点、数据节点A、数据节点B执行操作：

vim /etc/my.cnf

添加以下内容：

[mysqld]
# Options for mysqld process:
ndbcluster                      # run NDB storage engine
 
[mysql_cluster]
# Options for NDB Cluster processes:
ndb-connectstring=192.168.113.151  # location of management server

在管理节点执行操作：

mkdir /var/lib/mysql-cluster
cd /var/lib/mysql-cluster
vim config.ini

添加以下内容：

[ndbd default]
# Options affecting ndbd processes on all data nodes:
NoOfReplicas=2    # Number of replicas
DataMemory=80M    # How much memory to allocate for data storage
#IndexMemory=18M   # How much memory to allocate for index storage
                  # For DataMemory and IndexMemory, we have used the
                  # default values. Since the "world" database takes up
                  # only about 500KB, this should be more than enough for
                  # this example NDB Cluster setup.
ServerPort=2202   # This the default value; however, you can use any
                  # port that is free for all the hosts in the cluster
                  # Note1: It is recommended that you do not specify the port
                  # number at all and simply allow the default value to be used
                  # instead
                  # Note2: The port was formerly specified using the PortNumber
                  # TCP parameter; this parameter is no longer available in NDB
                  # Cluster 7.5.
 
[ndb_mgmd]
# Management process options:
HostName=192.168.113.151          # Hostname or IP address of MGM node
DataDir=/var/lib/mysql-cluster  # Directory for MGM node log files
 
[ndbd]
# Options for data node "A":
                                # (one [ndbd] section per data node)
HostName=192.168.113.153          # Hostname or IP address
NodeId=2                        # Node ID for this data node
DataDir=/usr/local/mysql/data   # Directory for this data node's data files
 
[ndbd]
# Options for data node "B":
HostName=192.168.113.154          # Hostname or IP address
NodeId=3                        # Node ID for this data node
DataDir=/usr/local/mysql/data   # Directory for this data node's data files
 
[mysqld]
# SQL node options:
HostName=192.168.113.152          # Hostname or IP address
                                # (additional mysqld connections can be
                                # specified for this node for various
                                # purposes such as running ndb_restore)

注意：
在MySQL NDB Cluster 7.6中不建议使用IndexMemory，否则会报以下错误：

WARNING  -- at line 6: [DB] IndexMemory is deprecated, use Number bytes on each ndbd(DB) node allocated for storing indexes instead

NDB集群的初始启动：

在管理节点执行操作：
打开端口1186：

firewall-cmd --zone=public --add-port=1186/tcp --permanent
systemctl restart firewalld.service
firewall-cmd --list-ports

首次启动：

[root@CentOS-1804-MySQL-1 mysql-cluster]# ndb_mgmd -f /var/lib/mysql-cluster/config.ini
MySQL Cluster Management Server mysql-5.7.20 ndb-7.6.4
2018-10-21 02:14:26 [MgmtSrvr] INFO     -- The default config directory '/usr/mysql-cluster' does not exist. Trying to create it...
2018-10-21 02:14:26 [MgmtSrvr] INFO     -- Sucessfully created config directory

之后启动：

ndb_mgmd

在数据节点A、数据节点B执行操作：
创建目录：

mkdir -p /usr/local/mysql/data

在数据节点A执行操作：

[root@CentOS-1804-MySQL-3 ~]# ndbd
2018-10-21 02:18:31 [ndbd] INFO     -- Angel connected to '192.168.113.151:1186'
2018-10-21 02:18:31 [ndbd] INFO     -- Angel allocated nodeid: 2

在数据节点B执行操作：

[root@CentOS-1804-MySQL-4 ~]# ndbd
2018-10-21 02:19:15 [ndbd] INFO     -- Angel connected to '192.168.113.151:1186'
2018-10-21 02:19:15 [ndbd] INFO     -- Angel allocated nodeid: 3

在MySQL节点执行操作：

[root@CentOS-1804-MySQL-2 ~]# ndb_mgm
-- NDB Cluster -- Management Client --
ndb_mgm> SHOW
Connected to Management Server at: 192.168.113.151:1186
Cluster Configuration
---------------------
[ndbd(NDB)]	2 node(s)
id=2	@192.168.113.153  (mysql-5.7.20 ndb-7.6.4, starting, Nodegroup: 0)
id=3	@192.168.113.154  (mysql-5.7.20 ndb-7.6.4, starting, Nodegroup: 0)

[ndb_mgmd(MGM)]	1 node(s)
id=1	@192.168.113.151  (mysql-5.7.20 ndb-7.6.4)

[mysqld(API)]	1 node(s)
id=4 (not connected, accepting connect from 192.168.113.152)

ndb_mgm>

上面显示内容已说明配置成功。

MySQL 5.7.20 （或指定版本） 与 MySQL NDB Cluster 7.6.4 （或指定版本） 集群

猜你喜欢

MySQL 5.7.20 （或指定版本）与 MySQL NDB Cluster 7.6.4 （或指定版本）集群