本文主要是介绍CentOS7 mysql-cluster安装与配置，希望对大家解决编程问题提供一定的参考价值，需要的开发者们随着小编来一起学习吧！
目录
下载安装:
#拷贝ndb_mgm和ndb_mgmd
#创建并编辑配置文件
#初始化管理节点
安装数据节点和sql节点
#初始化mysql
#启动mysql
#登录并设置新密码
#启动ndbd节点:
#启动和停止管理节点
mysql-cluster安装与配置
下载工具包地址:https://dev.mysql.com/downloads/cluster/
注:以mysql-cluster-8.0.25-linux-glibc2.12-x86_64.tar.gz为例
$>wget https://downloads.mysql.com/archives/get/p/14/file/mysql-cluster-8.0.25-linux-glibc2.12-x86_64.tar.gz
$> tar -zxvf mysql-cluster-8.0.25-linux-glibc2.12-x86_64.tar.gz
#将解压的文件重命名为mysql-cluster移动到/usr/local/mysql目录下
$> mv mysql-cluster-8.0.25-linux-glibc2.12-x86_64 /usr/local/mysql/mysql-cluster
#复制到其它服务器
$> scp -r /usr/local/mysql/mysql-cluster root@192.168.106.102:/usr/local/mysql/mysql-cluster
$> scp -r /usr/local/mysql/mysql-cluster root@192.168.106.103:/usr/local/mysql/mysql-cluster
#防火墙 status查看是否开启,stop关闭
$> systemctl status firewalld
$> systemctl stop firewalld
不用执行:[root@mysql ~]# systemctl disable firewalld
$> cp /usr/local/mysql/mysql-cluster/bin/ndb_mgm* /usr/local/bin/
$> vi /usr/local/mysql/mysql-cluster/config.ini
| [ndbd default] #ptions affecting ndbd processes on all data nodes: NoOfReplicas=2 # Number of fragment replicas DataMemory=256M # How much memory to allocate for data storage [ndb_mgmd] # Management process options: NodeId=1 HostName=192.168.106.101 # Hostname or IP address of management node default port 1186 DataDir=/usr/local/mysql/mysql-cluster # Directory for management node log files [ndbd] # Options for data node "A": # (one [ndbd] section per data node) HostName=192.168.106.102 # Hostname or IP address NodeId=2 # Node ID for this data node DataDir=/usr/local/mysql/clu_data # Directory for this data node's data files [ndbd] # Options for data node "B": HostName=192.168.106.103 # Hostname or IP address NodeId=3 # Node ID for this data node DataDir=/usr/local/mysql/clu_data # Directory for this data node's data files [mysqld] # SQL node options: NodeId=4 HostName=192.168.106.102 # Hostname or IP address # (additional mysqld connections can be # specified for this node for various # purposes such as running ndb_restore) [mysqld] # SQL node options: NodeId=5 HostName=192.168.106.103 |
$> /usr/local/bin/ndb_mgmd -f /usr/local/mysql/mysql-cluster/config.ini --initial
# ndb_mgmd是mysql cluster的管理服务器，-f:指定启动的参数配置文件
#--initial:初始化配置,修改配置文件启动时就必须加上--initial参数，不然添加的节点不会在mysql cluster中
#验证初始化管理节点是否启动成功
$> /usr/local/bin/ndb_mgm
-- NDB Cluster -- Management Client --
| ndb_mgm> show Connected to Management Server at: 192.168.106.101:1186 Cluster Configuration --------------------- [ndbd(NDB)] 2 node(s) id=2 @192.168.106.102 (mysql-8.0.25 ndb-8.0.25, Nodegroup: 0, *) id=3 @192.168.106.103 (mysql-8.0.25 ndb-8.0.25, Nodegroup: 0) [ndb_mgmd(MGM)] 1 node(s) id=1 @192.168.106.101 (mysql-8.0.25 ndb-8.0.25) [mysqld(API)] 2 node(s) id=4 @192.168.106.102 (mysql-8.0.25 ndb-8.0.25) id=5 @192.168.106.103 (mysql-8.0.25 ndb-8.0.25) |
$> vi /etc/my.cnf
| [mysqld] datadir=/usr/local/mysql/clu_data basedir=/usr/local/mysql/mysql-cluster ndbcluster default-storage-engine=ndbcluster port=33062 #character config character_set_server=utf8mb4 explicit_defaults_for_timestamp=true [mysqld_safe] #log-error=/var/log/mariadb/mariadb.log log-error=/usr/local/mysql/clu_data/mysql.log #pid-file=/var/run/mariadb/mariadb.pid : [mysql_cluster] ndb-connectstring=192.168.106.101:1186 # # include all files from the config directory # !includedir /etc/my.cnf.d |
$>/usr/local/mysql/mysql-cluster/bin/mysqld --initialize --user=mysql --basedir=/usr/local/mysql/mysql-cluster --datadir=/usr/local/mysql/clu_data
$>/usr/local/mysql/mysql-cluster/support-files/mysql.server start
$> mysql -uroot -p
ALTER USER 'root'@'localhost' IDENTIFIED BY '新密码';
use mysql;
update user set host = '%' where user = 'root';
flush privileges;如果连接报错:
修改mysql的root用户的语句:alter user 'root'@'localhost' identified by 'xxx'; mysql默认使用sha_256加密,再次修改mysql账号的密码，使用其他的加密方式，如下语句:
ALTER USER 'root'@'localhost' IDENTIFIED WITH mysql_native_password BY 'xxx';
flush privileges;
$> cp /usr/local/mysql/mysql-cluster/bin/ndbd /usr/local/bin/ndbd
$> cp /usr/local/mysql/mysql-cluster/bin/ndbmtd /usr/local/bin/ndbmtd
$> /usr/local/mysql/mysql-cluster/bin/ndbd --initial
#首次启动数据节点时要加上--initial参数,后续启动不能添加该参数，否则ndbd程序会清除在之前建立的所有用于恢复的数据文件和日志文件
下次启动直接
$> /usr/local/mysql/mysql-cluster/bin/ndbd
启动顺序：管理节点->[数据节点,sql节点]
管理节点启动：/usr/local/bin/ndb_mgmd -f /usr/local/mysql/mysql-cluster/config.ini
数据节点启动: /usr/local/bin/ndbd
SQL节点启动：/usr/local/mysql/mysql-cluster/support-files/mysql.server start
管理节点停止: /usr/local/bin/ndb_mgm -e shutdown
数据节点停止: /usr/local/bin/ndbd shutdown
SQL节点停止：/usr/local/mysql/mysql-cluster/support-files/mysql.server stop
在其中一台创建一个新的库,添加一个ndbcluster 引擎的表,其它引擎数据不会同步:
集群数据库创建表的引擎必须是:ENGINE=NDBCLUSTER or ENGINE=NDB
CREATE TABLE `test` (
`id` bigint NOT NULL AUTO_INCREMENT
) ENGINE=ndbcluster;
INSERT test(id) value(1);
异常处理:
libcrypto.so.1.1: cannot open shared object file: No such
gcc查看是否安装gcc -v
安装yum install gcc gcc-c++
openssl查看是否安装openssl version
安装yum install -y openssl openssl-devel
ALTER USER 'root'@'%' IDENTIFIED BY 'Aa123456' PASSWORD EXPIRE NEVER; #修改加密规则
ALTER USER 'root'@'%' IDENTIFIED WITH mysql_native_password BY 'Aa123456';
flush privileges;
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