The Ultimate Guide to High Availability with MariaDB

Setting the Language for Error Messages

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Contents

  1. Setting the lc_messages System Variable
  2. Setting the --language Option
  3. Character Set

MariaDB server error messages are by default in English. You can change this to a number of other languages. As of MariaDB 10.0, error messages are available in the following languages

  • Czech
  • Danish
  • Dutch
  • English
  • Estonian
  • French
  • German
  • Greek
  • Hungarian
  • Italian
  • Japanese
  • Korean
  • Norwegian
  • Norwegian-ny (Nynorsk)
  • Polish
  • Portuguese
  • Romanian
  • Russian
  • Serbian
  • Slovak
  • Spanish
  • Swedish
  • Ukrainian

The actual error message file is errmsg.sys, and there is one for each available language, stored in a different directory.

Setting the lc_messages System Variable

The lc_messages and lc_messages_dir system variables can be used to set the server locale used for error messages.

The lc_messages system variable is specified as the language name.

The lc_messages_dir system variable is specified as the path to the directory storing the language's error message file.

Any valid locale my be given, but if error messages for the associated language are not available, the default (English) will be used.

For example, the following will set the error messages to be in French.:

mysqld --lc-messages=fr_CA
...
SELECT blah;
ERROR 1054 (42S22): Champ 'blah' inconnu dans field list

See locales for a list of locales and their related languages.

lc_messages can be changed while the server is running and has global and session values, so a user can specify the error messages for their session only to be in particular language by running the SET statement, but lc_messages_dir can only be set when the server starts.

Setting the --language Option

The --language option can also be used to set the server's language for error messages, but it is deprecated. It is recommended to set the lc_messages system variable instead.

The --language option option can be specified as a language name. For example: 

mysqld --language=estonian

The --language option option can be specified as the path to the directory storing the language's error message file. For example:

mysqld --language=/my/maria-10.0.13/sql/share/danish/

Character Set

The character set that the error messages are returned in is determined by the character_set_results variable, which defaults to UTF8.

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