munin-contrib/plugins/apache/apache_vhosts/apache_pipelogger

120 lines
3.4 KiB
Perl
Executable File

#!/usr/bin/perl
=head1
# Log vhost port method response_bytes response_time status
<IfModule mod_log_config.c>
CustomLog "|/usr/share/munin/apache_pipelogger" "%v %p %m %B %D %s"
</IfModule>
=cut
# write every n seconds to shared memory
local $nsec=7;
local $debug=undef;
use Storable qw(freeze thaw);
use List::Util qw(min max);
use IPC::ShareLite ':lock';
require Data::Dumper if $debug;
use Munin::Plugin;
local $share = IPC::ShareLite->new(
-key => 'mapl',
-create => 1,
-destroy => 1,
-exclusive => 0,
-mode => '0666'
) or die $!;
local $SIG{'ALRM'}=\&periodic_write;
alarm $nsec;
# drop stored data on reload
local %temp=();
while (<STDIN>) {
my ($vhost,$port,$method,$bytes,$time,$status)=split(/\s/,$_);
# sanity check
next unless m/^([\d\w\.\-_]+\s){5}([\d\w\.\-_]+$)/; # escaped "." and "-"
# sitename to munin fieldname
my $vpm=clean_fieldname($vhost);
$temp{$vpm}{'label'}=$vhost;
$temp{$vpm}{'label'}=~s/www\.//;
# count all requests
$temp{$vpm}{'requests'}++;
if ($bytes) {
$bytes=~s/-/0/;
# bytes transmitted
$temp{$vpm}{'bytes'}+=$bytes;
# max bytes
$temp{$vpm}{'max_bytes'}=max($temp{$vpm}{'max_bytes'},$bytes);
# average bytes
$temp{$vpm}{'avg_bytes'}=$temp{$vpm}{'bytes'}/$temp{$vpm}{'requests'} || 0 if ($bytes);
}
# count by status / error code
$temp{$vpm}{"status"}{$status}++ if $status;
if ($time) {
# min/max execution time
$temp{$vpm}{'max_time'}=max($temp{$vpm}{'max_time'},$time);
# cumulative and average execution time
$temp{$vpm}{'cml_time'}+=$time;
# average time
$temp{$vpm}{'avg_time'}=$temp{$vpm}{'cml_time'}/$temp{$vpm}{'requests'} || 0 if ($time);
}
};
sub periodic_write {
# begin transaction
$share->lock(LOCK_EX);
# get data (may be updated by other loggers too)
my %old=eval{%{thaw($share->fetch)}}; # using eval to suppress thaw error on empty string at the first run
foreach my $vpm (keys %temp){
# merge values
$old{$vpm}{'bytes'}+=$temp{$vpm}{'bytes'} if $temp{$vpm}{'bytes'};
$old{$vpm}{'requests'}+=$temp{$vpm}{'requests'} if $temp{$vpm}{'requests'};
$old{$vpm}{'time'}+=$temp{$vpm}{'time'} if $temp{$vpm}{'time'};
$old{$vpm}{'label'}=$temp{$vpm}{'label'};
$old{$vpm}{'avg_time'}=sprintf("%d",(($old{$vpm}{'avg_time'}+$temp{$vpm}{'avg_time'})/2)/1000);
$old{$vpm}{'max_time'}=max($old{$vpm}{'max_time'},$temp{$vpm}{'max_time'})/1000;
$old{$vpm}{'max_bytes'}=max($temp{$vpm}{'max_bytes'},$temp{$vpm}{'max_bytes'});
$old{$vpm}{'avg_bytes'}=sprintf("%d",($old{$vpm}{'avg_bytes'}+$temp{$vpm}{'avg_bytes'})/2);
# reset local counters
foreach my $check (qw(requests bytes time cml_time max_bytes avg_bytes max_time avg_time)) {
$temp{$vpm}{$check}=0;
}
# reset status counts
foreach my $val (keys %{$temp{$vpm}{'status'}}) {
$old{$vpm}{'status'}{$val}+=$temp{$vpm}{'status'}{$val};
$temp{$vpm}{'status'}{$val}=0;
}
};
# save to shm
# print Data::Dumper::Dumper(%old) if $debug;
$share->store( freeze \%old );
# end transaction
$share->unlock;
# parse/write every n seconds
alarm $nsec;
}