MySQL Database Output Module

Module Name:    ommysql

Author: Michael Meckelein (Initial Author) / Rainer Gerhards <>


This module provides native support for logging to MySQL databases. It offers superior performance over the more generic omlibdbi module.

Action Parameters:

  • server
    Name or address of the MySQL server
  • serverport
    Permits to select a non-standard port for the MySQL server. The default is 0, which means the system default port is used. There is no need to specify this parameter unless you know the server is running on a non-standard listen port.
  • db
    Database to use
  • uid
    logon userid used to connect to server. Must have proper permissions.
  • pwd
    the user's password
  • template
    Template to use when submitting messages.
  • mysqlconfig.file
    Permits the selection of an optional MySQL Client Library configuration file (my.cnf) for extended configuration functionality. The use of this configuration directive is necessary only if you have a non-standard environment or if fine-grained control over the database connection is desired.
  • mysqlconfig.section
    Permits the selection of the section within the configuration file specified by the myselconfig.file parameter.
    This will likely only be used where the database administrator provides a single configuration file with multiple profiles.
    This configuration parameter is ignored unless mysqlconfig.file is also used.
    If omitted, the MySQL Client Library default of "client" will be used.

Legacy (pre-v6) Configuration Directives:

ommysql mostly uses the "very old style" (v0) configuration, with almost everything on the action line itself.

  • $ActionOmmysqlServerPort <port> - like the "serverport" action parameter.
  • $OmMySQLConfigFile <file name> - like the "mysqlconfig.file" action parameter.
  • $OmMySQLConfigSection <string> - like the "mysqlconfig.file" action parameter.
  • Action line:
    All parameters should be filled in for a successful connect.

Note rsyslog contains a canned default template to write to the MySQL database. It works on the MonitorWare schema. This template is:

As you can see, the template is an actual SQL statement. Note the ",SQL" option: it tells the template processor that the template is used for SQL processing, thus quote characters are quoted to prevent security issues. You can not assign a template without ",SQL" to a MySQL output action.

If you would like to change fields contents or add or delete your own fields, you can simply do so by modifying the schema (if required) and creating your own custom template.


The following sample writes all syslog messages to the database "syslog_db" on The server is being accessed under the account of "user" with password "pwd".

Legacy Sample:

The same as above, but in legacy config format (pre rsyslog-v6):

[rsyslog.conf overview] [manual index] [rsyslog site]

This documentation is part of the rsyslog project.
Copyright © 2008-2012 by Rainer Gerhards and Adiscon. Released under the ASL 2.0.