- Repository
- Munin (contrib)
- Last change
- 2020-07-03
- Graph Categories
- Family
- auto
- Capabilities
- Keywords
- Language
- Perl
- License
- GPL-2.0-only
http_request_time
Installation
This plugin does http requests to specified URLs and takes the response time.
Use it to monitor remote sites.
LWP::UserAgent and Time::HiRes are required
Configuration
[http_request_time]
env.url1 http://127.0.0.1/1
env.url2 http://127.0.0.1/2
env.url3 http://www.example.com
env.url3_name some_munin_internal_name
env.url3_label Some random page on our website
env.url3_proxy http://firewall:3128
env.url3_agent Mozilla/5.0
env.timeout 3
Timeout is the timeout of any HTTP request. Tune to avoid a complete timeout of the plugin.
Magic Markers
#%# family=auto
#%# capabilities=autoconf
License
GPLv2
#!/usr/bin/perl
=head1 INSTALLATION
This plugin does http requests to specified URLs and takes the response time.
Use it to monitor remote sites.
LWP::UserAgent and Time::HiRes are required
=head1 CONFIGURATION
[http_request_time]
env.url1 http://127.0.0.1/1
env.url2 http://127.0.0.1/2
env.url3 http://www.example.com
env.url3_name some_munin_internal_name
env.url3_label Some random page on our website
env.url3_proxy http://firewall:3128
env.url3_agent Mozilla/5.0
env.timeout 3
Timeout is the timeout of any HTTP request. Tune to avoid a complete
timeout of the plugin.
=head1 MAGIC MARKERS
#%# family=auto
#%# capabilities=autoconf
=head1 LICENSE
GPLv2
=cut
use strict;
use warnings;
use Munin::Plugin;
use Time::HiRes qw(gettimeofday tv_interval);
my $ret = undef;
need_multigraph();
sub clean {
my $surl=shift;
$surl=~s/^https?:\/\///;
$surl=~s|%[\w\d]|_|g;
$surl=~s|[^\w\d_]|_|g;
$surl=~s|_*$||g;
$surl=~s|^_*||g;
return $surl;
};
if (! eval "require LWP::UserAgent;")
{
$ret = "LWP::UserAgent not found";
if ( ! defined $ARGV[0] ) {
die $ret;
}
}
my %URLS;
# timeout in seconds for requests
# slightly lower than the default global timeout (5 seconds)
my $timeout = $ENV{'timeout'} || 3;
for (my $i = 1; $ENV{"url$i"}; $i++)
{
my $url = $ENV{"url$i"};
my $proxy = $ENV{"url${i}_proxy"};
my $name = $ENV{"url${i}_name"} || clean($url);
my $label = $ENV{"url${i}_label"} || $url;
my $agent = $ENV{"url${i}_agent"};
$URLS{$name}={
url=>$url,
proxy=>$proxy,
label=>$label,
agent=>$agent,
time=>'U'
};
}
if ( defined $ARGV[0] and $ARGV[0] eq "autoconf" )
{
if ($ret)
{
print "no ($ret)\n";
exit 0;
}
my $ua = LWP::UserAgent->new(timeout => $timeout);
foreach my $url (keys %URLS) {
my $response = $ua->request(HTTP::Request->new('GET',$URLS{$url}{'url'}));
if ($response->is_success) {
next;
}
else {
print "no (URL $url: ". $response->message .")\n";
exit 0;
}
}
print "yes\n";
exit 0;
}
if ( defined $ARGV[0] and $ARGV[0] eq "config" )
{
# master graph
print "multigraph http_request_time\n";
print "graph_title HTTP(S) Request response times\n";
print "graph_args --base 1000\n";
print "graph_vlabel response time in ms\n";
print "graph_category webserver\n";
my @go;
foreach my $name (keys %URLS) {
my $url = $URLS{$name};
print "$name.label $$url{'label'}\n";
print "$name.info The response time of a single request\n";
print "$name.min 0\n";
print "$name.draw LINE1\n";
push(@go, $name);
}
# multigraphs
foreach my $name (keys %URLS) {
my $url = $URLS{$name};
print "\nmultigraph http_request_time.$name\n";
print "graph_title $$url{'url'}\n";
print "graph_args --base 1000\n";
print "graph_vlabel response time in ms\n";
print "graph_category webserver\n";
print "$name.label $$url{'label'}\n";
print "$name.info The response time of a single request\n";
print "$name.min 0\n";
print "$name.draw LINE1\n";
}
exit 0;
}
my $ua = LWP::UserAgent->new(timeout => $timeout);
my $defaultAgent = $ua->agent;
foreach my $name (keys %URLS) {
my $url = $URLS{$name};
if ($url->{agent}) {
$ua->agent($url->{agent});
} else {
$ua->agent($defaultAgent);
}
if ($url->{proxy}) {
$ua->proxy(['http', 'ftp'], $url->{proxy});
}
else {
$ua->proxy(['http', 'ftp'], undef);
}
# warm up
my $response = $ua->request(HTTP::Request->new('GET',$$url{'url'}));
# timed run
my $t1=[gettimeofday];
$response = $ua->request(HTTP::Request->new('GET',$$url{'url'}));
my $t2=[gettimeofday];
if ($response->is_success) {
$$url{'time'}=sprintf("%d",tv_interval($t1,$t2)*1000);
};
};
print("multigraph http_request_time\n");
foreach my $name (keys %URLS) {
my $url = $URLS{$name};
print("$name.value $$url{'time'}\n");
}
foreach my $name (keys %URLS) {
my $url = $URLS{$name};
print("\nmultigraph http_request_time.$name\n");
print("$name.value $$url{'time'}\n");
}
# vim:syntax=perl