MySQL 5.7 最新版使用 yum 安装 MySQL NDB Cluster 7.5 最新版集群

相关链接：

说明：

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、MySQL节点、数据节点A、数据节点B执行操作：

为MySQL NDB Cluster添加MySQL Yum存储库：

mkdir -p /data/mysql
cd /data/mysql/
wget https://repo.mysql.com/mysql57-community-release-el7.rpm
rpm -Uvh mysql57-community-release-el7.rpm
yum update mysql57-community-release

选择MySQL NDB集群子库：

yum -y install yum-utils
yum-config-manager --enable mysql57-community
yum-config-manager --enable mysql-cluster-7.5-community

安装MySQL NDB集群：

在管理节点执行操作：

yum -y install mysql-cluster-community-management-server

在MySQL节点执行操作：
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）：

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：

yum -y install mysql-cluster-community-server

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 ~]# grep 'temporary password' /var/log/mysqld.log
2018-10-20T01:05:54.185926Z 1 [Note] A temporary password is generated for root@localhost: #zwtljlax8EX

初次登录修改密码：
下面已显示 MySQL 版本为 5.7.23，MySQL NDB Cluster版本为7.5.11。

[root@CentOS-1804-MySQL-2 ~]# mysql -uroot -p
Enter password: 
Welcome to the MySQL monitor.  Commands end with ; or \g.
Your MySQL connection id is 2
Server version: 5.7.23-ndb-7.5.11-cluster-gpl

Copyright (c) 2000, 2018, 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)

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：

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-5.7.23 ndb-7.5.11
2018-10-20 09:23:01 [MgmtSrvr] INFO     -- The default config directory '/usr/mysql-cluster' does not exist. Trying to create it...
2018-10-20 09:23:01 [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
2018-10-20 09:26:26 [ndbd] INFO     -- Angel connected to '192.168.113.151:1186'
2018-10-20 09:26:26 [ndbd] INFO     -- Angel allocated nodeid: 2

在数据节点B执行操作：

[root@CentOS-1804-MySQL-4 ~]# ndbd
2018-10-20 09:26:46 [ndbd] INFO     -- Angel connected to '192.168.113.151:1186'
2018-10-20 09:26:46 [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-5.7.23 ndb-7.5.11, starting, Nodegroup: 0)
id=3	@192.168.113.154  (mysql-5.7.23 ndb-7.5.11, starting, Nodegroup: 0)

[ndb_mgmd(MGM)]	1 node(s)
id=1	@192.168.113.151  (mysql-5.7.23 ndb-7.5.11)

[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 最新版 使用 yum 安装 MySQL NDB Cluster 7.5 最新版 集群

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MySQL 5.7 最新版使用 yum 安装 MySQL NDB Cluster 7.5 最新版集群