You can do this either by exiting your mysql CLI shell, or by running: mysql> UNLOCK TABLES 8) Copy the file to the slave: Note: you can also stop mysqld and transfer the db files. 6) Dump the master db: $ mysqldump -u root -p -all-databases -master-data > dbdump.sql This information will be needed to initialize the slave in a later step. | File | Position | Binlog_Do_DB | Binlog_Ignore_DB | Executed_Gtid_Set | 5) Note down master replication log position: mysql> SHOW MASTER STATUS The lock needs to remain in place until the Note that this lock is released either when you exit the mysql CLI client, or Next we need to lock the master to get a consistent snapshot to bootstrap the Mysql> GRANT REPLICATION SLAVE ON *.* TO OK, 0 rows affected (0.00 sec) 4) Lock the master: Mysql> CREATE USER IDENTIFIED BY 'slavepass' TheĪccount needs REPLICATION SLAVE privilege. We’ll set the slave up to connect to the master via a dedicated account. 2) Restart the MySQL service for changes to take effect: sudo systemctl restart mysql 3) Create a user for replication: Must be unique for each node among a set of connected master and slave nodes) toġ, and enables binary logging. This makes the master listen on the private IP, sets it server-id (which In the file /etc/mysql//mysqld.cnf uncomment or set the following: bind-address = 10.0.0.156 server-id = 1 log_bin = /var/log/mysql/mysql-bin.log This means theĭatabase will be read-only and all writes will be blocked for the duration of Of the database, which involves placing a global read lock. This process needs to take a consistent snapshot Which can talk to each other over a private network, and that the nodes have theįirst let’s setup the master. The rest of the post assumes you have setup two identical nodes running MySQL, It is only a matter of: $ sudo apt-get install mysql-server The Ubuntu 16.04 LTS repositories come with version 5.7 of MySQL, so installing Use OpsDash to monitor the replication status. Replication is commonly used for improved availability or to have anĮxtra node to run analytic queries and reports. Here’s how to setup replication between two MySQL 5.7 servers running on Ubuntuġ6.04 LTS.
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