Ubuntu: Management node (MGM) installation and configuration

The MySQL version in Ubuntu 8.04 is 5.0.51a. In the package mysql-server-5.0, not only the Cluster Server Manager (ndb_mgmd) is carried, but also the cluster management client (ndb_mgm ). The client ndb_mgm can be used to display the cluster status, so that you can understand the working status of the cluster.

In this section, we install and configure the mysql-mgm.mytest.com (192.168.1.10 ).

Install MySQL

On the mysql-mgm.mytest.com server, install the MySQL server:

$ Sudo apt-get update install mysql-server

During installation, the installer requires you to set the MySQL root Password. Set and remember the password.

Configure ndb_mgmd.cnf

Now let's create a MySQL cluster configuration file. The file path is/etc/mysql/ndb_mgmd.cnf:

$ Sudo nano/etc/mysql/ndb_mgmd.cnf

The warning file name must be ndb_mgmd.cnf; otherwise, the service cannot be started.

Enter the following content:

[Ndbd default]

NoOfReplicas = 2

[Mysqld default]

[NDB_MGMD DEFAULT]

[Tcp default]

[NDB_MGMD] # management Node

HostName = 192.168.1.10 # IP address of the Local Machine (Management node)

[NDBD] # Storage Node 1

HostName = 192.168.1.13

DataDir =/var/lib/mysql-cluster

BackupDataDir =/var/lib/mysql-cluster/backup

[NDBD] # Storage Node 2

HostName = 192.168.1.14

DataDir =/var/lib/mysql-cluster

BackupDataDir =/var/lib/mysql-cluster/backup

# If there are several storage nodes, write a few lines [MYSQLD]

[MYSQLD]

[MYSQLD]

After saving the file, you can start the mgm service of MySQL:

$ Sudo/etc/init. d/mysql-ndb-mgm start

To stop a MySQL cluster, stop the mgm service.