Apache::DBILogConfig - Logs access information in a DBI database


 # In httpd.conf
 PerlLogHandler Apache::DBILogConfig
 PerlSetVar DBILogConfig_data_source DBI:Informix:log_data
 PerlSetVar DBILogConfig_username    informix
 PerlSetVar DBILogConfig_password    informix
 PerlSetVar DBILogConfig_table       mysite_log
 PerlSetVar DBILogConfig_log_format  "%b=bytes_sent %f=filename %h=remote_host %r=request %s=status"


This module replicates the functionality of the standard Apache module, mod_log_config, but logs information in a DBI-compliant database instead of a file. (Some documentation has been borrowed from the mod_log_config documentation.)



A DBI data source with a format of "DBI::driver:database"


Username passed to the database driver when connecting


Password passed to the database driver when connecting


Table in the database for logging


A string consisting of formats separated by white space that define the data to be logged (see FORMAT STRING below)


A format string consists of a string with the following syntax:



Formats specify the type of data to be logged. The following formats are accepted:

a Remote IP-address
A Local IP-address (not yet supported)
B Bytes sent, excluding HTTP headers.
b Bytes sent, excluding HTTP headers. In CLF format i.e. a '-' rather than a 0 when no bytes are sent.
c Connection status when response is completed. 'X' = connection aborted before the response completed. '+' = connection may be kept alive after the response is sent. '-' = connection will be closed after the response is sent. (not yet supported)
e The contents of the environment variable specified by parameter
f Filename
h Remote host
H The request protocol
i The contents of the header (specified by parameter) in the request sent to the server.
l Remote logname (from identd, if supplied)
m The request method
n The contents of note (specified by parameter) from another module.
o The contents of the header (specified by parameter) in the reply.
p The canonical Port of the server serving the request
P The process ID of the child that serviced the request.
q The query string (prepended with a ? if a query string exists, otherwise an empty string)
r First line of request
s Status. For requests that got internally redirected, this is the status of the *original* request.
t Time, in common log format time format or the format specified by parameter, which should be in strftime(3) format.
T The time taken to serve the request, in seconds.
u Remote user (from auth; may be bogus if return status (%s) is 401)
U The URL path requested.
v The canonical ServerName of the server serving the request.
V The server name according to the UseCanonicalName setting (not yet supported).


A database column to log the data to


For formats that take a parameter

Example: %{DOCUMENT_ROOT}e


Conditions are a comma-separated list of status codes. If the status of the request being logged equals one of the status codes in the condition the data specified by the format will be logged. By placing a '!' in front of the conditions, data will be logged if the request status does not match any of the conditions.

Example: %!200,304,302s=status will log the status of all requests that did not return some sort of normal status


Debugging statements will be written to the error log if LOGLEVEL is set to 'warn' or higher


  • mod_perl >= 1.11_01 with PerlLogHandler enabled

  • DBI

  • Date::Format


To install this module, move into the directory where this file is located and type the following:

        perl Makefile.PL
        make test
        make install

This will install the module into the Perl library directory.

Once installed, you will need to modify your web server's configuration as above.


After installing and configuring this module, Apache will continue to log to your regular access log file (if it was previously configured that way). To log accesses only to your database comment out CustomLog or TransferLog or set them to /dev/null.


Copyright (C) 1998, Jason Bodnar <>. All rights reserved.

This module is free software; you may redistribute it and/or modify it under the same terms as Perl itself.


perl(1), mod_perl(3)