# NAME RRDTool::Rawish - A RRDtool command wrapper with rawish interface # SYNOPSIS use RRDTool::Rawish; my $rrd = RRDTool::Rawish->new( rrdfile => 'rrdtest.rrd', # path to rrdfile remote => 'rrdtest.com:11111', # option for rrdcached rrdtool_path => '/opt/rrdtool/bin/rrdtool', # option path to rrdtool ); my $create_status = $rrd->create(["DS:rx:DERIVE:40:0:U", "DS:tx:DERIVE:40:0:U", "RRA:LAST:0.5:1:240"], { '--start' => '1350294000', '--step' => '20', '--no-overwrite' => '1', }); my $update_status = $rrd->update([ "1350294020:0:0", "1350294040:50:100", "1350294060:80:150", "1350294080:100:200", "1350294100:180:300", "1350294120:220:380", "1350294140:270:400" ]); my $img = $rrd->graph('-', [ "DEF:rx=rrdtest2.rrd:rx:LAST", "DEF:tx=rrdtest2.rrd:tx:LAST", "LINE1:rx:rx#00F000", "LINE1:tx#0000F0", ]); # error message $rrd->errstr; # => "ERROR: hogehoge" # DESCRIPTION RRDTool::Rawish is a RRDtool command wrapper class with rawish interface. You can use the class like RRDtool command interface. Almost all of modules with RRD prefix are RRDs module wrappers. It's troublesome to use RRDs with variable environments because it's a XS module and moreover not a CPAN module. In contrast, RRDTool::Rawish has less dependencies and it's easy to install it. # METHODS - my $rrd = RRDTool::Rawish->new(\[%args\]) Creates a new instance of RRDTool::Rawish. %args need to be specified in key => value format. The following options are supported: - rrdfile This option specifies the rrdfile that [RRD::Rawish](https://metacpan.org/pod/RRD::Rawish) is working on. It's mandatory for most of the rrdtool operations. - rrdtool\_path This is the path to the rrdtool binary that should be used. RRD::Rawish will use the rrdtool binary that's in the user path. You can override this behavior to use a different rrdtool binary. This allows multiple rrdtools to be installed, it also simplifies the usage of a binary that's not in the default path. - remote This is option to support the rrdcached daemon. You can specifiy a unix file or network socket. Unix file sockets need to be prefixed with `unix:` e.g. `unix:/var/run/rrdcached.sock`. As [RRD::Rawish](https://metacpan.org/pod/RRD::Rawish) uses the rrdtool binary itself the environment variable `RRDCACHED_ADDRESS` is well respected. Setting the environment variable allows transparent integration. - $rrd->version() Returns rrdtool's version like "1.47". - $rrd->errstr() Returns rrdtool's stderr string. If no error occurs, it returns empty string. - $rrd->create($params, \[\\%opts\]) Returns exit status. rrdtool create - $rrd->update($params, \[\\%opts\]) Returns exit status. rrdtool update - $rrd->graph($filename, $params, \[\\%opts\]) Returns exit status rrdtool graph Returns image binary. - $rrd->dump(\[\\%opts\]) rrdtool dump Returns xml data. - $rrd->restore($xmlfile, \[\\%opts\]) rrdtool restore Returns exit status. - $rrd->lastupdate rrdtool lastupdate Returns timestamp. - $rrd->fetch rrdtool fetch Returns output lines as an ARRAY reference - $rrd->xport rrdtool xport Returns xml data. - $rrd->flushcached rrdtool flushcached Sends a `flush` command to rrdcached for the `rrdfile`. Returns exit status. - $rrd->info rrdtool info Returns info as a HASH reference. Examples: is $value->{filename}, "rrd_test.rrd"; is $value->{rrd_version}, "0003"; is $value->{step}, 20; is $value->{last_update}, 1350294000; is $value->{header_size}, 904; is $value->{ds}->{rx}->{index}, 0; is $value->{ds}->{rx}->{minimal_heartbeat}, 40; is $value->{ds}->{rx}->{min}, "0.0000000000e+00"; is $value->{ds}->{rx}->{max}, "NaN"; is $value->{ds}->{rx}->{last_ds}, "U"; is $value->{ds}->{rx}->{value}, "0.0000000000e+00"; is $value->{ds}->{rx}->{unknown_sec}, 0; is $value->{ds}->{tx}->{index}, 1; is $value->{ds}->{tx}->{type}, "DERIVE"; is $value->{ds}->{tx}->{minimal_heartbeat}, 40; is $value->{ds}->{tx}->{min}, "0.0000000000e+00"; is $value->{ds}->{tx}->{max}, "NaN"; is $value->{ds}->{tx}->{last_ds}, "U"; is $value->{ds}->{tx}->{value}, "0.0000000000e+00"; is $value->{ds}->{tx}->{unknown_sec}, 0; is $value->{rra}->[0]->{cf}, "LAST"; is $value->{rra}->[0]->{rows}, 240; is $value->{rra}->[0]->{cur_row}, 95; is $value->{rra}->[0]->{pdp_per_row}, 1; is $value->{rra}->[0]->{xff}, "5.0000000000e-01"; is $value->{rra}->[0]->{cdp_prep}->[0]->{value}, "NaN"; is $value->{rra}->[0]->{cdp_prep}->[0]->{unknown_datapoints}, 0; is $value->{rra}->[0]->{cdp_prep}->[1]->{value}, "NaN"; is $value->{rra}->[0]->{cdp_prep}->[1]->{unknown_datapoints}, 0; # AUTHOR Yuuki Tsubouchi `` # THANKS TO Shoichi Masuhara # SEE ALSO [RRDtool Documentation](http://oss.oetiker.ch/rrdtool/) # LICENCE AND COPYRIGHT Copyright (c) 2013, Yuuki Tsubouchi ``. All rights reserved. This module is free software; you can redistribute it and/or modify it under the same terms as Perl itself. See [perlartistic](https://metacpan.org/pod/perlartistic).