[101] Replacing MySQL with MariaDB

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[101] Replacing MySQL with MariaDB

Postby Altrea » 30. June 2013 01:01

Hi folks,

This is a short step by step tutorial how to replace MySQL with MariaDB in XAMPP without the need of any defined OS Path variables or registry keys (XAMPP philosophy).
CAUTION: We will not provide any support for MariaDB or any issues resulting of following this tutorial!

0. Preparation

  • be sure your XAMPP MySQL server is stopped
  • copy the entire mysql folder as backup (!!!)
  • download MariaDB 5.5.X (Windows 32 .zip version)

1. Core Replacement

  • delete all contents from your \xampp\mysql\ folder (you have a copy of it, right?)
  • extract your downloaded MariaDB .zip to \xampp\mysql\
  • copy back your folders and files from your backuped \mysql\data\ folder to your current \xampp\mysql\data\ folder
    except these Databases:
    • mysql\
    • performance_schema\
    • information_schema\
  • create a new \xampp\mysql\bin\my.ini with the following contents
    Code: Select all
    # Example MariaDB config file for medium systems.
    # This is for a system with little memory (32M - 64M) where MariaDB plays
    # an important part, or systems up to 128M where MariaDB is used together with
    # other programs (such as a web server)
    # MariaDB programs look for option files in a set of
    # locations which depend on the deployment platform.
    # You can copy this option file to one of those
    # locations. For information about these locations, do:
    # 'my_print_defaults --help' and see what is printed under
    # Default options are read from the following files in the given order:
    # More information at: http://dev.mysql.com/doc/mysql/en/option-files.html
    # In this file, you can use all long options that a program supports.
    # If you want to know which options a program supports, run the program
    # with the "--help" option.

    # The following options will be passed to all MariaDB clients
    #password   = your_password
    port      = 3306
    socket      = /xampp/mysql/mysql.sock

    # Here follows entries for some specific programs

    # The MariaDB server
    port      = 3306
    socket      = /xampp/mysql/mysql.sock
    key_buffer_size = 16M
    max_allowed_packet = 1M
    table_open_cache = 64
    sort_buffer_size = 512K
    net_buffer_length = 8K
    read_buffer_size = 256K
    read_rnd_buffer_size = 512K
    myisam_sort_buffer_size = 8M
    log_error = "mysql_error.log"

    # Point the following paths to different dedicated disks
    tmpdir      = /xampp/tmp/

    # Don't listen on a TCP/IP port at all. This can be a security enhancement,
    # if all processes that need to connect to mysqld run on the same host.
    # All interaction with mysqld must be made via Unix sockets or named pipes.
    # Note that using this option without enabling named pipes on Windows
    # (via the "enable-named-pipe" option) will render mysqld useless!

    # Replication Master Server (default)
    # binary logging is required for replication

    # binary logging format - mixed recommended

    # required unique id between 1 and 2^32 - 1
    # defaults to 1 if master-host is not set
    # but will not function as a master if omitted
    server-id   = 1

    # Replication Slave (comment out master section to use this)
    # To configure this host as a replication slave, you can choose between
    # two methods :
    # 1) Use the CHANGE MASTER TO command (fully described in our manual) -
    #    the syntax is:
    #    MASTER_USER=<user>, MASTER_PASSWORD=<password> ;
    #    where you replace <host>, <user>, <password> by quoted strings and
    #    <port> by the master's port number (3306 by default).
    #    Example:
    #    CHANGE MASTER TO MASTER_HOST='125.564.12.1', MASTER_PORT=3306,
    #    MASTER_USER='joe', MASTER_PASSWORD='secret';
    # OR
    # 2) Set the variables below. However, in case you choose this method, then
    #    start replication for the first time (even unsuccessfully, for example
    #    if you mistyped the password in master-password and the slave fails to
    #    connect), the slave will create a master.info file, and any later
    #    change in this file to the variables' values below will be ignored and
    #    overridden by the content of the master.info file, unless you shutdown
    #    the slave server, delete master.info and restart the slaver server.
    #    For that reason, you may want to leave the lines below untouched
    #    (commented) and instead use CHANGE MASTER TO (see above)
    # required unique id between 2 and 2^32 - 1
    # (and different from the master)
    # defaults to 2 if master-host is set
    # but will not function as a slave if omitted
    #server-id       = 2
    # The replication master for this slave - required
    #master-host     =   <hostname>
    # The username the slave will use for authentication when connecting
    # to the master - required
    #master-user     =   <username>
    # The password the slave will authenticate with when connecting to
    # the master - required
    #master-password =   <password>
    # The port the master is listening on.
    # optional - defaults to 3306
    #master-port     =  <port>
    # binary logging - not required for slaves, but recommended

    # Uncomment the following if you are using InnoDB tables
    innodb_data_home_dir = /xampp/mysql/data/
    innodb_data_file_path = ibdata1:10M:autoextend
    innodb_log_group_home_dir = /xampp/mysql/data/
    # You can set .._buffer_pool_size up to 50 - 80 %
    # of RAM but beware of setting memory usage too high
    innodb_buffer_pool_size = 16M
    innodb_additional_mem_pool_size = 2M
    # Set .._log_file_size to 25 % of buffer pool size
    innodb_log_file_size = 5M
    innodb_log_buffer_size = 8M
    innodb_flush_log_at_trx_commit = 1
    innodb_lock_wait_timeout = 50

    max_allowed_packet = 16M

    # Remove the next comment character if you are not familiar with SQL

    key_buffer_size = 20M
    sort_buffer_size = 20M
    read_buffer = 2M
    write_buffer = 2M

  • Start MariaDB by hitting the MySQL Start button in your XAMPP control panel

2. Fixing phpmyadmin

To fix phpmyadmin we need to create and configurate Database user pma
  • open your Windows command line
  • in this command line navigate to folder \xampp\mysql\bin\
  • connect to your mariadb with this command
    Code: Select all
    mysql --user=root
  • execute the following command (you can copy all this and paste it into your command line by rightclick -> paste)
    Code: Select all
    GRANT USAGE ON mysql.* TO 'pma'@'localhost';
    Host, User, Select_priv, Insert_priv, Update_priv, Delete_priv,
    Create_priv, Drop_priv, Reload_priv, Shutdown_priv, Process_priv,
    File_priv, Grant_priv, References_priv, Index_priv, Alter_priv,
    Show_db_priv, Super_priv, Create_tmp_table_priv, Lock_tables_priv,
    Execute_priv, Repl_slave_priv, Repl_client_priv
    ) ON mysql.user TO 'pma'@'localhost';
    GRANT SELECT ON mysql.db TO 'pma'@'localhost';
    GRANT SELECT ON mysql.host TO 'pma'@'localhost';
    GRANT SELECT (Host, Db, User, Table_name, Table_priv, Column_priv)
    ON mysql.tables_priv TO 'pma'@'localhost';
    GRANT SELECT, INSERT, UPDATE, DELETE ON phpmyadmin.* TO 'pma'@'localhost';

best wishes,
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