|--------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|
| [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 |

#初始化管理节点

$> /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 --

安装数据节点和sql节点

$> vi /etc/my.cnf

#初始化mysql

$>/usr/local/mysql/mysql-cluster/bin/mysqld --initialize --user=mysql --basedir=/usr/local/mysql/mysql-cluster --datadir=/usr/local/mysql/clu_data

#启动mysql

$>/usr/local/mysql/mysql-cluster/support-files/mysql.server start

#登录并设置新密码

$> 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;

#启动ndbd节点:

$> 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

#启动和停止管理节点

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;

CentOS7 mysql-cluster安装与配置

ndb_mgmd是mysql cluster的管理服务器，-f:指定启动的参数配置文件