1Appender::RRDs(3)     User Contributed Perl Documentation    Appender::RRDs(3)
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3
4

NAME

6       Log::Log4perl::Appender::RRDs - Log to a RRDtool Archive
7

SYNOPSIS

9           use Log::Log4perl qw(get_logger);
10           use RRDs;
11
12           my $DB = "myrrddb.dat";
13
14           RRDs::create(
15             $DB, "--step=1",
16             "DS:myvalue:GAUGE:2:U:U",
17             "RRA:MAX:0.5:1:120");
18
19           print time(), "\n";
20
21           Log::Log4perl->init(\qq{
22             log4perl.category = INFO, RRDapp
23             log4perl.appender.RRDapp = Log::Log4perl::Appender::RRDs
24             log4perl.appender.RRDapp.dbname = $DB
25             log4perl.appender.RRDapp.layout = Log::Log4perl::Layout::PatternLayout
26             log4perl.appender.RRDapp.layout.ConversionPattern = N:%m
27           });
28
29           my $logger = get_logger();
30
31           for(10, 15, 20, 25) {
32               $logger->info($_);
33               sleep 1;
34           }
35

DESCRIPTION

37       "Log::Log4perl::Appender::RRDs" appenders facilitate writing data to
38       RRDtool round-robin archives via Log4perl. For documentation on RRD and
39       its Perl interface "RRDs" (which comes with the distribution), check
40       out <http://rrdtool.org>.
41
42       Messages sent to Log4perl's RRDs appender are expected to be numerical
43       values (ints or floats), which then are used to run a "rrdtool update"
44       command on an existing round-robin database. The name of this database
45       needs to be set in the appender's "dbname" configuration parameter.
46
47       If there's more parameters you wish to pass to the "update" method, use
48       the "rrdupd_params" configuration parameter:
49
50           log4perl.appender.RRDapp.rrdupd_params = --template=in:out
51
52       To read out the round robin database later on, use "rrdtool fetch" or
53       "rrdtool graph" for graphic displays.
54

LICENSE

56       Copyright 2002-2013 by Mike Schilli <m@perlmeister.com> and Kevin Goess
57       <cpan@goess.org>.
58
59       This library is free software; you can redistribute it and/or modify it
60       under the same terms as Perl itself.
61

AUTHOR

63       Please contribute patches to the project on Github:
64
65           http://github.com/mschilli/log4perl
66
67       Send bug reports or requests for enhancements to the authors via our
68
69       MAILING LIST (questions, bug reports, suggestions/patches):
70       log4perl-devel@lists.sourceforge.net
71
72       Authors (please contact them via the list above, not directly): Mike
73       Schilli <m@perlmeister.com>, Kevin Goess <cpan@goess.org>
74
75       Contributors (in alphabetical order): Ateeq Altaf, Cory Bennett, Jens
76       Berthold, Jeremy Bopp, Hutton Davidson, Chris R. Donnelly, Matisse
77       Enzer, Hugh Esco, Anthony Foiani, James FitzGibbon, Carl Franks, Dennis
78       Gregorovic, Andy Grundman, Paul Harrington, Alexander Hartmaier  David
79       Hull, Robert Jacobson, Jason Kohles, Jeff Macdonald, Markus Peter,
80       Brett Rann, Peter Rabbitson, Erik Selberg, Aaron Straup Cope, Lars
81       Thegler, David Viner, Mac Yang.
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85perl v5.34.0                      2022-01-21                 Appender::RRDs(3)
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