I am trying to deploy a 2 machines MySQL NDB Cluster with the following architecture:
192.168.1.12 – management node
192.168.1.12 – SQL node
192.168.1.12 – data node
192.168.1.13 – SQL node
192.168.1.13 – data node
The base operating system is Ubuntu 14.04 and the MySQL Cluster software version is 5.7.25. .
I've been following the APT repository installation method:
$ sudo apt-get install mysql-cluster-community-management-server
$ sudo apt-get install mysql-cluster-community-client
$ sudo apt-get install mysql-cluster-community-data-node
$ sudo apt-get install mysql-cluster-community-server
I configure just the first machine 192.168.1.12 The management and the fisrt data node are working correctly.
ndb_mgm> show
Connected to Management Server at: 192.168.1.12:1186
Cluster Configuration
---------------------
[ndbd(NDB)] 2 node(s)
id=2 @192.168.1.12 (mysql-5.7.25 ndb-7.5.13, starting, Nodegroup: 0)
id=3 (not connected, accepting connect from 192.168.1.13)
[ndb_mgmd(MGM)] 1 node(s)
id=1 @192.168.1.12 (mysql-5.7.25 ndb-7.5.13)
[mysqld(API)] 2 node(s)
id=4 (not connected, accepting connect from 192.168.1.12)
id=5 (not connected, accepting connect from 192.168.1.13)
My /var/lib/mysql-cluster/config.ini file reads as follows:
[ndb_mgmd]
HostName=192.168.1.12
DataDir=/var/lib/mysql-cluster
[ndbd]
HostName=192.168.1.12
NodeId=2
DataDir=/usr/local/mysql/data
[ndbd]
HostName=192.168.1.13
NodeId=3
DataDir=/usr/local/mysql/data
[mysqld]
HostName=192.168.1.12
[mysqld]
HostName=192.168.1.13
On the MySQL node the /etc/mysql/mysql.conf.d/mysqld.cnf file reads as:
[mysqld]
pid-file = /var/run/mysqld/mysqld.pid
socket = /var/run/mysqld/mysqld.sock
datadir = /var/lib/mysql
log-error = /var/log/mysql/error.log
bind-address=192.168.1.12
ndbcluster
ndb-connectstring=192.168.1.12
[mysql_cluster]
ndb-connectstring =192.168.1.12
my.cnf(in 192.168.1.12) file reads as:
[mysql_cluster]
ndb-connectstring =192.168.1.12
And this my log file /var/log/mysql/error.log:
2019-02-26T21:18:07.772650Z 0 [Note] InnoDB: page_cleaner: 1000ms intended loop took 720710ms. The settings might not be optimal. (flushed=0 and $
2019-02-26T21:18:33.499413Z 0 [Warning] NDB: server id set to zero - changes logged to bin log with server id zero will be logged with another se$
2019-02-26T21:18:33.499926Z 0 [Note] NDB Binlog: Starting...
2019-02-26T21:18:33.500418Z 1 [Note] NDB Binlog: Started
2019-02-26T21:18:33.500438Z 1 [Note] NDB Binlog: Setting up
2019-02-26T21:18:33.500569Z 1 [Note] NDB Binlog: Created schema Ndb object, reference: 0x0, name: 'Ndb Binlog schema change monitoring'
2019-02-26T21:18:33.500684Z 1 [Note] NDB Binlog: Created injector Ndb object, reference: 0x0, name: 'Ndb Binlog data change monitoring'
2019-02-26T21:18:33.500708Z 1 [Note] NDB Binlog: Setup completed
2019-02-26T21:18:33.500720Z 1 [Note] NDB Binlog: Wait for server start completed
2019-02-26T21:18:33.500836Z 0 [Note] NDB Util: Starting...
2019-02-26T21:18:33.500936Z 2 [Note] NDB Util: Wait for server start completed
2019-02-26T21:18:33.501068Z 0 [Note] NDB Index Stat: Starting...
2019-02-26T21:18:33.501097Z 0 [Note] NDB Index Stat: Wait for server start completed
2019-02-26T21:18:33.603096Z 0 [Note] Found ca.pem, server-cert.pem and server-key.pem in data$
2019-02-26T21:18:33.607559Z 0 [Warning] CA certificate ca.pem is self signed.
2019-02-26T21:18:33.609426Z 0 [Note] Server hostname (bind-address): '192.168.1.12'; port: 33$
2019-02-26T21:18:33.609456Z 0 [Note] - '192.168.1.12' resolves to '192.168.1.12';
2019-02-26T21:18:33.609491Z 0 [Note] Server socket created on IP: '192.168.1.12'.
2019-02-26T21:18:33.702507Z 0 [Note] Event Scheduler: Loaded 0 events
2019-02-26T21:18:33.702850Z 0 [Note] /usr/sbin/mysqld: ready for connections.
Version: '5.7.25-ndb-7.5.13' socket: '/var/run/mysqld/mysqld.sock' port: 3306 MySQL Cluste$
2019-02-26T21:18:33.702987Z 2 [Note] NDB Util: Wait for cluster to start
2019-02-26T21:18:33.703018Z 0 [Note] NDB Index Stat: Wait for cluster to start
2019-02-26T21:18:33.703086Z 1 [Note] NDB Binlog: Check for incidents
2019-02-26T21:18:33.703101Z 1 [Note] NDB Binlog: Checking for any pending binlog purges
2019-02-26T21:18:33.703132Z 1 [Note] NDB Binlog: Wait for cluster to start
2019-02-26T21:19:03.754192Z 0 [Warning] NDB : Tables not available after 30 seconds. Conside$
I start the nodes by using those commands
#Management node
sudo ndb_mgmd -f /var/lib/mysql-cluster/config.ini --bind-address=192.168.1.12
#Data node
sudo ndbd --bind-address=192.168.1.12
#SQL node
sudo service mysql start
NOTE: I tested only the machine with IP adress 192.168.1.12
