comment alimenter une base RRD

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#!/bin/sh
 
start_epoch="1370091316"
rrd_file="test.rrd"
 
rrdtool create $rrd_file \
        --start $start_epoch \
        --step 300 \
        DS:perfdata:COUNTER:300:0:U \
        RRA:AVERAGE:0.5:96:90

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#!/usr/bin/perl
 
my $rrd_file    ="test.rrd";
my $start_epoch =1370091316;
#my $end_epoch  =1372683316;
my $step        =300;
 
my $update_value=0;
my $old_value   =0;
my $update_num  =0;
 
my $range       =1000;
my $end_epoch   =`date +%s`;
 
my @timestamps  =`seq $start_epoch $step $end_epoch`;
 
#$timestamps    =~ s/\n/,/g;
 
#printf ($timestamps);
 
foreach $update_timestamp (@timestamps) {
        $update_num += 1;
        $update_timestamp=~ s/\n//g;
        $update_value=$old_value + int(rand($range));
 
        printf "$update_num:$update_timestamp:$update_value\n";
 
#       printf $update_value;
 
        my $rrdcmd="rrdtool update $rrd_file $update_timestamp:$update_value";
        `$rrdcmd`;
 
        $old_value=$update_value;
}

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#!/bin/sh
 
# A 1 mois
rrdtool graph test.1mois.png --start 1370091316 --end 1372683316  DEF:perf=test.rrd:perfdata:AVERAGE LINE1:perf#FF0000:"Donnee de perf"
 
# A 24 heures
rrdtool graph test.24h.png --start 1372596916 --end 1372683316  DEF:perf=test.rrd:perfdata:AVERAGE LINE1:perf#FF0000:"Donnee de perf"
 
# A 1 heure
rrdtool graph test.1h.png --start 1372679716 --end 1372683316  DEF:perf=test.rrd:perfdata:AVERAGE LINE1:perf#FF0000:"Donnee de perf"