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Comment: Updated using 4PSA automated script

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  1. Edit MySQL config file on the master server: /etc/my.cnf. At the end of the file, add the following lines. Then save changes and restart MySQL.

    Code Block
    #replication
    expire_logs_days=30
    server-id               = 1
    log-bin=/var/lib/mysql/mysql-bin.log
    log_bin_trust_function_creators=1
    binlog_format=MIXED
  2. Add the MySQL user destined for replication with the appropriate rights. Log in on MySQL CLI and run the following command:

    Code Block
    GRANT SELECT, PROCESS, FILE, SUPER, REPLICATION CLIENT, REPLICATION SLAVE, RELOAD ON *.* TO replica@'%' identified by 'PYvrVSSpFj1yl'; FLUSH PRIVILEGES;
  3. Stop the MySQL service on the slave server.

  4. Go back to the master node and run the following command. In order to synchronize the folders, you will have to provide the root password for connecting via SSH on the slave server.

    Code Block
    rsync -varPe ssh  /var/lib/mysql root@<slave_ip>:/var/lib/ 
  5. Lock the database to prevent any new changes.

    Code Block
    FLUSH TABLES WITH READ LOCK;


  6. Check status on master server.

    Code Block
    mysql> show master status;
    +------------------------------+----------+--------------+------------------+
    | File                         | Position | Binlog_Do_DB | Binlog_Ignore_DB |
    +------------------------------+----------+--------------+------------------+
    | centos-6-b64-test-bin.000001 | 43311833 |              |                  |
    +------------------------------+----------+--------------+------------------+


  7. Again, synchronize the MySQL home directory on the slave server. Run the rsync command on the master server one more time.

    Code Block
    rsync -varPe ssh  /var/lib/mysql root@<slave_ip>:/var/lib/ 


  8. Unlock tables.

    Code Block
    UNLOCK TABLES;
    QUIT;


  9. Edit MySQL config file on the slave server: /etc/my.cnf. At the end of the file, add the following lines:  

    Code Block
    expire_logs_days=30
    log_bin                 = /var/lib/mysql/mysql-bin.log
    server-id               = 2
    max_allowed_packet=128M
    binlog_format=MIXED
    log_bin_trust_function_creators=1
    


  10. Start MySQL service on the slave server, connect to MySQL CLI and run the following command:

    Code Block
    slave stop;


  11.  Set the master parameters on the slave server.

    Code Block
    change master to master_host='10.150.12.32', master_user='sclavetereplica', master_password='PYvrVSSpFj1yl', MASTER_LOG_FILE='centos-6-b64-test-bin.000001', MASTER_LOG_POS=43311833;
    Code Block
    start slave;

     

    Note

    The MASTER_LOG_POS should be Position from the previous step.


  12. Check the slave status.

    Code Block
    mysql> show slave status\G;
    *************************** 1. row ***************************
    ..
    Slave_IO_Running: Yes
    Slave_SQL_Running: Yes
    ..
    Exec_Master_Log_Pos: 43315418
    ..

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