Joshua Orvis > Log-Cabin > Log::Cabin

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Log-Cabin/Log-Cabin-0.06.tar.gz

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Module Version: 0.06   Source  

NAME ^

Log::Cabin - Partial implementation of Log::Log4perl with reduced disk IO.

SYNOPSIS ^

    use Log::Cabin;

    my $log_level = 'WARN';

    my $logsimple = new Log::Cabin();
    $logsimple->level( 4 );

    $logsimple->set_file_output( 'some.file.log' );
    # another option
    # $logsimple->set_output(*STDERR);

    my $logger = $logsimple->get_logger('some.category');

    $logger->debug("this is a debug message");
    $logger->info("here's an info message");
    $logger->warn("now a warning message");
    $logger->error("things are going down");
    $logger->fatal("it's all gone pete tong");
    
    #### the output some.file.log will look like this ####
    some.category INFO Wed Apr 18 02:27:10 2007 colossus:21151 ./test.pl:main:Log::Cabin::Foundation::info:18 || here's an info message
    some.category WARN Wed Apr 18 02:27:10 2007 colossus:21151 ./test.pl:main:Log::Cabin::Foundation::warn:19 || now a warning message
    some.category ERROR Wed Apr 18 02:27:10 2007 colossus:21151 ./test.pl:main:Log::Cabin::Foundation::error:20 || things are going down
    some.category FATAL Wed Apr 18 02:27:10 2007 colossus:21151 ./test.pl:main:Log::Cabin::Foundation::fatal:21 || it's all gone pete tong       
    ######################################################

DESCRIPTION ^

Log::Cabin provides a selection of the features of Log::Log4perl but with a focus on reduced disk IO. Just calling 'use Log::Log4perl' results in hundreds of stat calls to the file system. If you have a shared file system with many nodes running perl scripts at once, this could result in a significant decrease in performance.

After implementing this module we were able to cut up to 70,000 stat/open calls per second on our NFS. Of course, this module doesn't currently support all the features of Log::Log4perl, but many of the most comment ones are implemented.

EXPORT

None by default.

SEE ALSO ^

The usage of this module is similar to Log::Log4perl.

AUTHOR ^

Joshua Orvis, <jorvis@users.sourceforge.net> and Sam Angiuoli, <angiuoli@users.sourceforge.net>

COPYRIGHT AND LICENSE ^

This module is available under the Artistic License

http://www.opensource.org/licenses/artistic-license.php

Copyright (C) 2006-2007 by Joshua Orvis and Sam Angiuoli

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