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added support for the new 'max_historic_years' option to the 'kern' graph

This commit is contained in:
Jordi Sanfeliu 2013-10-24 10:46:48 +02:00
parent b5713212b4
commit 9bc8af73f3
1 changed files with 36 additions and 4 deletions
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40
lib/kern.pm
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@ -32,8 +32,40 @@ sub kern_init {
my ($package, $config, $debug) = @_;
my $rrd = $config->{base_lib} . $package . ".rrd";
my $info;
my @ds;
my @rra;
my @tmp;
my $n;
my @average;
my @min;
my @max;
my @last;
if(-e $rrd) {
$info = RRDs::info($rrd);
for my $key (keys %$info) {
if(index($key, 'rra[') == 0) {
if(index($key, '.rows') != -1) {
push(@rra, substr($key, 4, index($key, ']') - 4));
}
}
}
if(scalar(@rra) != 12 + (4 * $config->{max_historic_years})) {
logger("$myself: Detected size mismatch between 'max_historic_years' (" . $config->{max_historic_years} . ") and $rrd (" . ((scalar(@rra) -12) / 4) . "). Resizing it accordingly. All historic data will be lost. Backup file created.");
rename($rrd, "$rrd.bak");
}
}
if(!(-e $rrd)) {
logger("Creating '$rrd' file.");
for($n = 1; $n <= $config->{max_historic_years}; $n++) {
push(@average, "RRA:AVERAGE:0.5:1440:" . (365 * $n));
push(@min, "RRA:MIN:0.5:1440:" . (365 * $n));
push(@max, "RRA:MAX:0.5:1440:" . (365 * $n));
push(@last, "RRA:LAST:0.5:1440:" . (365 * $n));
}
eval {
RRDs::create($rrd,
"--step=60",
@ -58,19 +90,19 @@ sub kern_init {
"RRA:AVERAGE:0.5:1:1440",
"RRA:AVERAGE:0.5:30:336",
"RRA:AVERAGE:0.5:60:744",
"RRA:AVERAGE:0.5:1440:365",
@average,
"RRA:MIN:0.5:1:1440",
"RRA:MIN:0.5:30:336",
"RRA:MIN:0.5:60:744",
"RRA:MIN:0.5:1440:365",
@min,
"RRA:MAX:0.5:1:1440",
"RRA:MAX:0.5:30:336",
"RRA:MAX:0.5:60:744",
"RRA:MAX:0.5:1440:365",
@max,
"RRA:LAST:0.5:1:1440",
"RRA:LAST:0.5:30:336",
"RRA:LAST:0.5:60:744",
"RRA:LAST:0.5:1440:365",
@last,
);
};
my $err = RRDs::error;