Add check_tomcat
This commit is contained in:
parent
8bc302b287
commit
2171614181
3
check_tomcat/Makefile
Normal file
3
check_tomcat/Makefile
Normal file
|
|
@ -0,0 +1,3 @@
|
||||||
|
#/usr/bin/make -f
|
||||||
|
|
||||||
|
include ../common.mk
|
||||||
387
check_tomcat/check_tomcat
Normal file
387
check_tomcat/check_tomcat
Normal file
|
|
@ -0,0 +1,387 @@
|
||||||
|
#!/usr/bin/perl
|
||||||
|
|
||||||
|
#############################################################################
|
||||||
|
# #
|
||||||
|
# This script was initially developed by Lonely Planet for internal use #
|
||||||
|
# and has kindly been made available to the Open Source community for #
|
||||||
|
# redistribution and further development under the terms of the #
|
||||||
|
# GNU General Public License v3: http://www.gnu.org/licenses/gpl.html #
|
||||||
|
# #
|
||||||
|
#############################################################################
|
||||||
|
# #
|
||||||
|
# This script is supplied 'as-is', in the hope that it will be useful, but #
|
||||||
|
# neither Lonely Planet nor the authors make any warranties or guarantees #
|
||||||
|
# as to its correct operation, including its intended function. #
|
||||||
|
# #
|
||||||
|
# Or in other words: #
|
||||||
|
# Test it yourself, and make sure it works for YOU. #
|
||||||
|
# #
|
||||||
|
#############################################################################
|
||||||
|
# Author: George Hansper e-mail: george@hansper.id.au #
|
||||||
|
#############################################################################
|
||||||
|
|
||||||
|
use strict;
|
||||||
|
use LWP;
|
||||||
|
use LWP::UserAgent;
|
||||||
|
use Getopt::Std;
|
||||||
|
use XML::XPath;
|
||||||
|
|
||||||
|
my %optarg;
|
||||||
|
my $getopt_result;
|
||||||
|
|
||||||
|
my $lwp_user_agent;
|
||||||
|
my $http_request;
|
||||||
|
my $http_response;
|
||||||
|
my $url;
|
||||||
|
my $body;
|
||||||
|
|
||||||
|
my @message;
|
||||||
|
my @message_perf;
|
||||||
|
my $exit = 0;
|
||||||
|
my @exit = qw/OK: WARNING: CRITICAL:/;
|
||||||
|
|
||||||
|
my $rcs_id = '$Id: check_tomcat.pl,v 1.4 2013/03/15 10:45:41 george Exp $';
|
||||||
|
my $rcslog = '
|
||||||
|
$Log: check_tomcat.pl,v $
|
||||||
|
Revision 1.4 2013/03/15 10:45:41 george
|
||||||
|
Fixed bug in % threads thresholds, which appear if multiple connectors are in use (thanks to Andreas Lamprecht for reporting this).
|
||||||
|
Changed MB to MiB in output text.
|
||||||
|
|
||||||
|
Revision 1.3 2011/12/11 04:56:27 george
|
||||||
|
Added currentThreadCount to performance data.
|
||||||
|
|
||||||
|
Revision 1.2 2011/11/18 11:30:57 george
|
||||||
|
Added capability to extract the connector names, and check any or all tomcat connectors for sufficient free threads.
|
||||||
|
Stripped quotes from connector names to work around tomcat7 quirkiness.
|
||||||
|
|
||||||
|
Revision 1.1 2011/04/16 12:05:26 george
|
||||||
|
Initial revision
|
||||||
|
|
||||||
|
';
|
||||||
|
|
||||||
|
# Defaults...
|
||||||
|
my $timeout = 10; # Default timeout
|
||||||
|
my $host = 'localhost'; # default host header
|
||||||
|
my $host_ip = 'localhost'; # default IP
|
||||||
|
my $port = 80; # default port
|
||||||
|
my $user = 'nagios'; # default user
|
||||||
|
my $password = 'nagios'; # default password
|
||||||
|
my $uri = '/manager/status?XML=true'; #default URI
|
||||||
|
my $http = 'http';
|
||||||
|
my $connector_arg = undef;
|
||||||
|
my $opt_warn_threads = "25%";
|
||||||
|
my $opt_crit_threads = "10%";
|
||||||
|
my $warn_threads;
|
||||||
|
my $crit_threads;
|
||||||
|
# Memory thresholds are tight, because garbage collection kicks in only when memory is low anyway
|
||||||
|
my $opt_warn_memory = "5%";
|
||||||
|
my $opt_crit_memory = "2%";
|
||||||
|
my $warn_memory;
|
||||||
|
my $crit_memory;
|
||||||
|
|
||||||
|
my $xpath;
|
||||||
|
my %xpath_checks = (
|
||||||
|
maxThreads => '/status/connector/threadInfo/@maxThreads',
|
||||||
|
currentThreadCount => '/status/connector/threadInfo/@currentThreadCount',
|
||||||
|
currentThreadsBusy => '/status/connector/threadInfo/@currentThreadsBusy',
|
||||||
|
memMax => '/status/jvm/memory/@max',
|
||||||
|
memFree => '/status/jvm/memory/@free',
|
||||||
|
memTotal => '/status/jvm/memory/@total',
|
||||||
|
);
|
||||||
|
# XPath examples...
|
||||||
|
# /status/jvm/memory/@free
|
||||||
|
# /status/connector[attribute::name="http-8080"]/threadInfo/@maxThreads
|
||||||
|
# /status/connector/threadInfo/@* <- returns multiple nodes
|
||||||
|
|
||||||
|
my %xpath_check_results;
|
||||||
|
|
||||||
|
sub VERSION_MESSAGE() {
|
||||||
|
print "$^X\n$rcs_id\n";
|
||||||
|
}
|
||||||
|
|
||||||
|
sub HELP_MESSAGE() {
|
||||||
|
print <<EOF;
|
||||||
|
Usage:
|
||||||
|
$0 [-v] [-H hostname] [-I ip_address] [-p port] [-S] [-t time_out] [-l user] [-a password] [-w /xpath[=value]...] [-c /xpath[=value]...]
|
||||||
|
|
||||||
|
-H ... Hostname and Host: header (default: $host)
|
||||||
|
-I ... IP address (default: none)
|
||||||
|
-p ... Port number (default: ${port})
|
||||||
|
-S ... Use SSL connection
|
||||||
|
-v ... verbose messages
|
||||||
|
-t ... Seconds before connection times out. (default: $timeout)
|
||||||
|
-l ... username for authentication (default: $user)
|
||||||
|
-a ... password for authentication (default: embedded in script)
|
||||||
|
-u ... uri path, (default: $uri)
|
||||||
|
-n ... connector name, regular expression
|
||||||
|
eg 'ajp-bio-8009' or 'http-8080' or '^http-'.
|
||||||
|
default is to check: .*-port_number\$
|
||||||
|
Note: leading/trailing quotes and spaces are trimmed from the connector name for matching.
|
||||||
|
-w ... warning thresholds for threads,memory (memory in MiB)
|
||||||
|
eg 20,50 or 10%,25% default is $opt_warn_threads,$opt_warn_memory
|
||||||
|
-c ... critical thresholds for threads,memory (memory in MiB)
|
||||||
|
eg 10,20 or 5%,10%, default is $opt_crit_threads,$opt_crit_memory
|
||||||
|
Example:
|
||||||
|
$0 -H app01.signon.devint.lpo -p 8080 -t 5 -l nagios -a apples -u '/manager/status?XML=true'
|
||||||
|
$0 -H app01.signon.devint.lpo -p 8080 -w 10%,50 -c 5%,10
|
||||||
|
$0 -H app01.signon.devint.lpo -p 8080 -w 10%,50 -c 5%,10 -l admin -a admin -n .
|
||||||
|
|
||||||
|
Notes:
|
||||||
|
The -I parameters connects to a alternate hostname/IP, using the Host header from the -H parameter
|
||||||
|
|
||||||
|
To check ALL connectors mentioned in the status XML file, use '-n .'
|
||||||
|
'.' is a regular expression matching all connector names.
|
||||||
|
|
||||||
|
MiB = mebibyte = 1024 * 1024 bytes
|
||||||
|
|
||||||
|
EOF
|
||||||
|
}
|
||||||
|
|
||||||
|
$getopt_result = getopts('hvSH:I:p:w:c:t:l:a:u:n:', \%optarg) ;
|
||||||
|
|
||||||
|
# Any invalid options?
|
||||||
|
if ( $getopt_result == 0 ) {
|
||||||
|
HELP_MESSAGE();
|
||||||
|
exit 1;
|
||||||
|
}
|
||||||
|
if ( $optarg{h} ) {
|
||||||
|
HELP_MESSAGE();
|
||||||
|
exit 0;
|
||||||
|
}
|
||||||
|
|
||||||
|
sub printv($) {
|
||||||
|
if ( $optarg{v} ) {
|
||||||
|
chomp( $_[-1] );
|
||||||
|
print STDERR @_;
|
||||||
|
print STDERR "\n";
|
||||||
|
}
|
||||||
|
}
|
||||||
|
|
||||||
|
if ( defined($optarg{t}) ) {
|
||||||
|
$timeout = $optarg{t};
|
||||||
|
}
|
||||||
|
|
||||||
|
# Is port number numeric?
|
||||||
|
if ( defined($optarg{p}) ) {
|
||||||
|
$port = $optarg{p};
|
||||||
|
if ( $port !~ /^[0-9][0-9]*$/ ) {
|
||||||
|
print STDERR <<EOF;
|
||||||
|
Port must be a decimal number, eg "-p 8080"
|
||||||
|
EOF
|
||||||
|
exit 1;
|
||||||
|
}
|
||||||
|
}
|
||||||
|
|
||||||
|
if ( defined($optarg{H}) ) {
|
||||||
|
$host = $optarg{H};
|
||||||
|
$host_ip = $host;
|
||||||
|
}
|
||||||
|
|
||||||
|
if ( defined($optarg{I}) ) {
|
||||||
|
$host_ip = $optarg{I};
|
||||||
|
if ( ! defined($optarg{H}) ) {
|
||||||
|
$host = $host_ip;
|
||||||
|
}
|
||||||
|
}
|
||||||
|
|
||||||
|
if ( defined($optarg{l}) ) {
|
||||||
|
$user = $optarg{l};
|
||||||
|
}
|
||||||
|
|
||||||
|
if ( defined($optarg{a}) ) {
|
||||||
|
$password = $optarg{a};
|
||||||
|
}
|
||||||
|
|
||||||
|
if ( defined($optarg{u}) ) {
|
||||||
|
$uri = $optarg{u};
|
||||||
|
}
|
||||||
|
|
||||||
|
if ( defined($optarg{S}) ) {
|
||||||
|
$http = 'https';
|
||||||
|
}
|
||||||
|
|
||||||
|
if ( defined($optarg{c}) ) {
|
||||||
|
my @threshold = split(/,/,$optarg{c});
|
||||||
|
if ( $threshold[0] ne "" ) {
|
||||||
|
$opt_crit_threads = $threshold[0];
|
||||||
|
}
|
||||||
|
if ( $threshold[1] ne "" ) {
|
||||||
|
$opt_crit_memory = $threshold[1];
|
||||||
|
}
|
||||||
|
}
|
||||||
|
|
||||||
|
if ( defined($optarg{n}) ) {
|
||||||
|
$connector_arg = $optarg{n};
|
||||||
|
} else {
|
||||||
|
$connector_arg = "-$port\$";
|
||||||
|
}
|
||||||
|
|
||||||
|
if ( defined($optarg{w}) ) {
|
||||||
|
my @threshold = split(/,/,$optarg{w});
|
||||||
|
if ( $threshold[0] ne "" ) {
|
||||||
|
$opt_warn_threads = $threshold[0];
|
||||||
|
}
|
||||||
|
if ( $threshold[1] ne "" ) {
|
||||||
|
$opt_warn_memory = $threshold[1];
|
||||||
|
}
|
||||||
|
}
|
||||||
|
|
||||||
|
*LWP::UserAgent::get_basic_credentials = sub {
|
||||||
|
return ( $user, $password );
|
||||||
|
};
|
||||||
|
|
||||||
|
# print $xpath_checks[0], "\n";
|
||||||
|
|
||||||
|
printv "Connecting to $host:${port}\n";
|
||||||
|
|
||||||
|
$lwp_user_agent = LWP::UserAgent->new;
|
||||||
|
$lwp_user_agent->timeout($timeout);
|
||||||
|
if ( $port == 80 || $port == 443 || $port eq "" ) {
|
||||||
|
$lwp_user_agent->default_header('Host' => $host);
|
||||||
|
} else {
|
||||||
|
$lwp_user_agent->default_header('Host' => "$host:$port");
|
||||||
|
}
|
||||||
|
|
||||||
|
$url = "$http://${host_ip}:${port}$uri";
|
||||||
|
$http_request = HTTP::Request->new(GET => $url);
|
||||||
|
|
||||||
|
printv "--------------- GET $url";
|
||||||
|
printv $lwp_user_agent->default_headers->as_string . $http_request->headers_as_string;
|
||||||
|
|
||||||
|
$http_response = $lwp_user_agent->request($http_request);
|
||||||
|
printv "---------------\n" . $http_response->protocol . " " . $http_response->status_line;
|
||||||
|
printv $http_response->headers_as_string;
|
||||||
|
printv "Content has " . length($http_response->content) . " bytes \n";
|
||||||
|
|
||||||
|
if ($http_response->is_success) {
|
||||||
|
$body = $http_response->content;
|
||||||
|
my $xpath = XML::XPath->new( xml => $body );
|
||||||
|
my $xpath_check;
|
||||||
|
# Parse the data out of the XML...
|
||||||
|
foreach $xpath_check ( keys %xpath_checks ) {
|
||||||
|
#print keys(%{$xpath_check}) , "\n";
|
||||||
|
my $path = $xpath_checks{$xpath_check};
|
||||||
|
$path =~ s{\$port}{$port};
|
||||||
|
#print $xpath_check->{xpath} , "\n";
|
||||||
|
my $nodeset = $xpath->find($path);
|
||||||
|
if ( $nodeset->get_nodelist == 0 ) {
|
||||||
|
push @message, "$path not found";
|
||||||
|
$exit |= 2;
|
||||||
|
push @message_perf, "$path=not_found";
|
||||||
|
next;
|
||||||
|
}
|
||||||
|
foreach my $node ($nodeset->get_nodelist) {
|
||||||
|
my $connector_name = $node->getParentNode()->getParentNode()->getAttribute("name");
|
||||||
|
$connector_name =~ s/^["'\s]+//;
|
||||||
|
$connector_name =~ s/["'\s]+$//;
|
||||||
|
my $value = $node->string_value();
|
||||||
|
if ( $value =~ /^"?([0-9.]+)"?$/ ) {
|
||||||
|
$value = $1;
|
||||||
|
} else {
|
||||||
|
push @message, "$path is not numeric";
|
||||||
|
$exit |= 2;
|
||||||
|
push @message_perf, "$path=not_numeric";
|
||||||
|
next;
|
||||||
|
}
|
||||||
|
if ( $xpath_check =~ /^mem/ ) {
|
||||||
|
# This is the .../memory/.. xpath, just store the value in the hash
|
||||||
|
$xpath_check_results{$xpath_check} = $value;
|
||||||
|
} elsif ( $connector_name =~ /${connector_arg}/ && $connector_name ne "" ) {
|
||||||
|
# This is a .../threadInfo/... xpath, put the result into a hash (key is connector_name)
|
||||||
|
$xpath_check_results{$xpath_check}{$connector_name} = $value;
|
||||||
|
}
|
||||||
|
}
|
||||||
|
}
|
||||||
|
# Now apply the logic and check the results
|
||||||
|
#----------------------------------------------
|
||||||
|
# Check memory
|
||||||
|
#----------------------------------------------
|
||||||
|
my $jvm_mem_available = $xpath_check_results{memFree} + $xpath_check_results{memMax} - $xpath_check_results{memTotal};
|
||||||
|
printv(sprintf("free=%d max=%d total=%d",$xpath_check_results{memFree}/1024, $xpath_check_results{memMax}/1024, $xpath_check_results{memTotal}/1024));
|
||||||
|
if ( $opt_warn_memory =~ /(.*)%$/ ) {
|
||||||
|
$warn_memory = int($1 * $xpath_check_results{memMax} / 100);
|
||||||
|
} else {
|
||||||
|
# Convert to bytes
|
||||||
|
$warn_memory =int($opt_warn_memory * 1024 * 1024);
|
||||||
|
}
|
||||||
|
printv("warning at $warn_memory bytes (". ( $warn_memory / 1024 /1024 )."MiB) free, max=$xpath_check_results{memMax}");
|
||||||
|
|
||||||
|
if ( $opt_crit_memory =~ /(.*)%$/ ) {
|
||||||
|
$crit_memory = int($1 * $xpath_check_results{memMax} / 100);
|
||||||
|
} else {
|
||||||
|
# Convert to bytes
|
||||||
|
$crit_memory = int($opt_crit_memory * 1024 * 1024);
|
||||||
|
}
|
||||||
|
printv("critical at $crit_memory bytes (". ( $crit_memory / 1024 /1024 )."MiB) free, max=$xpath_check_results{memMax}");
|
||||||
|
|
||||||
|
if ( $jvm_mem_available <= $crit_memory ) {
|
||||||
|
$exit |= 2;
|
||||||
|
push @message, sprintf("Memory critical <%d MiB,",$crit_memory/1024/1024);
|
||||||
|
} elsif ( $jvm_mem_available <= $warn_memory ) {
|
||||||
|
$exit |= 1;
|
||||||
|
push @message, sprintf("Memory low <%d MiB,",$warn_memory/1024/1024);
|
||||||
|
}
|
||||||
|
push @message, sprintf("memory in use %d MiB (%d MiB);",
|
||||||
|
( $xpath_check_results{memMax} - $jvm_mem_available ) / ( 1024 * 1024),
|
||||||
|
$xpath_check_results{memMax} / ( 1024 * 1024)
|
||||||
|
);
|
||||||
|
push @message_perf, "used=".( $xpath_check_results{memMax} - $jvm_mem_available ) . " free=$jvm_mem_available max=$xpath_check_results{memMax}";
|
||||||
|
|
||||||
|
#----------------------------------------------
|
||||||
|
# Check threads
|
||||||
|
#----------------------------------------------
|
||||||
|
my $name;
|
||||||
|
foreach $name ( keys( %{$xpath_check_results{currentThreadsBusy}} ) ) {
|
||||||
|
|
||||||
|
if ( $opt_warn_threads =~ /(.*)%$/ ) {
|
||||||
|
$warn_threads = int($1 * $xpath_check_results{maxThreads}{$name} / 100);
|
||||||
|
} else {
|
||||||
|
$warn_threads = $opt_warn_threads;
|
||||||
|
}
|
||||||
|
printv("warning at $warn_threads threads free, max=$xpath_check_results{maxThreads}{$name}");
|
||||||
|
|
||||||
|
if ( $opt_crit_threads =~ /(.*)%$/ ) {
|
||||||
|
$crit_threads = int($1 * $xpath_check_results{maxThreads}{$name} / 100);
|
||||||
|
} else {
|
||||||
|
$crit_threads = $opt_crit_threads;
|
||||||
|
}
|
||||||
|
printv("critical at $crit_threads threads free, max=$xpath_check_results{maxThreads}{$name}");
|
||||||
|
|
||||||
|
my $threads_available = $xpath_check_results{maxThreads}{$name} - $xpath_check_results{currentThreadsBusy}{$name};
|
||||||
|
if ( $threads_available <= $crit_threads ) {
|
||||||
|
$exit |= 2;
|
||||||
|
push @message, sprintf("Critical: free_threads<%d",$crit_threads);
|
||||||
|
} elsif ( $threads_available <= $warn_threads ) {
|
||||||
|
$exit |= 1;
|
||||||
|
push @message, sprintf("Warning: free_threads<%d",$warn_threads);
|
||||||
|
}
|
||||||
|
push @message, sprintf("threads[$name]=%d(%d);",
|
||||||
|
$xpath_check_results{currentThreadsBusy}{$name},
|
||||||
|
$xpath_check_results{maxThreads}{$name}
|
||||||
|
);
|
||||||
|
if ( defined($optarg{n}) ) {
|
||||||
|
push @message_perf, "currentThreadsBusy[$name]=$xpath_check_results{currentThreadsBusy}{$name} currentThreadCount[$name]=$xpath_check_results{currentThreadCount}{$name} maxThreads[$name]=$xpath_check_results{maxThreads}{$name}";
|
||||||
|
} else {
|
||||||
|
# For the sake of backwards-compatability of graphs etc...
|
||||||
|
push @message_perf, "currentThreadsBusy=$xpath_check_results{currentThreadsBusy}{$name} currentThreadCount=$xpath_check_results{currentThreadCount}{$name} maxThreads=$xpath_check_results{maxThreads}{$name}";
|
||||||
|
}
|
||||||
|
}
|
||||||
|
if ( keys(%{$xpath_check_results{currentThreadsBusy}}) == 0 ) {
|
||||||
|
# no matching connectors found - this is not OK.
|
||||||
|
$exit |= 1;
|
||||||
|
push @message, "Warning: No tomcat connectors matched name =~ /$connector_arg/";
|
||||||
|
}
|
||||||
|
} elsif ( $http_response->code == 401 ) {
|
||||||
|
print "WARNING: $url " . $http_response->protocol . " " . $http_response->status_line ."\n";
|
||||||
|
exit 1;
|
||||||
|
} else {
|
||||||
|
print "CRITICAL: $url " . $http_response->protocol . " " . $http_response->status_line ."\n";
|
||||||
|
exit 2;
|
||||||
|
}
|
||||||
|
|
||||||
|
if ( $exit == 3 ) {
|
||||||
|
$exit = 2;
|
||||||
|
}
|
||||||
|
|
||||||
|
print "$exit[$exit] ". join(" ",@message) . "|". join(" ",@message_perf) . "\n";
|
||||||
|
exit $exit;
|
||||||
5
check_tomcat/check_tomcat.cfg
Normal file
5
check_tomcat/check_tomcat.cfg
Normal file
|
|
@ -0,0 +1,5 @@
|
||||||
|
# 'check_tomcat_status' command definition
|
||||||
|
define command{
|
||||||
|
command_name check_tomcat_status
|
||||||
|
command_line /usr/lib/monitoring-plugins/check_tomcat -H $HOSTADDRESS$ -l $ARG1$ -a $ARG2$ $ARG3$
|
||||||
|
}
|
||||||
6
check_tomcat/control
Normal file
6
check_tomcat/control
Normal file
|
|
@ -0,0 +1,6 @@
|
||||||
|
Homepage: https://www.monitoringexchange.org/inventory/Check-Plugins/Software/Java/check_tomcat-pl
|
||||||
|
Watch: https://www.monitoringexchange.org/attachment/preview/Check-Plugins/Software/Java/check_tomcat-pl/13-03-15_12-09-48_check_tomcat.pl Id: check_tomcat.pl,v ([0-9.]+)
|
||||||
|
Uploaders: Jan Wagner <waja@cyconet.org>
|
||||||
|
Description: plugin to check the tomcat status page.
|
||||||
|
Recommends: libwww-perl, libxml-xpath-perl
|
||||||
|
Version: 1.4
|
||||||
7
check_tomcat/copyright
Normal file
7
check_tomcat/copyright
Normal file
|
|
@ -0,0 +1,7 @@
|
||||||
|
Copyright (c) George Hansper <george@hansper.id.au>
|
||||||
|
|
||||||
|
License: GPL v3
|
||||||
|
|
||||||
|
On Debian systems, the complete text of the GNU General
|
||||||
|
Public License version 3 can be found in "/usr/share/common-licenses/GPL-3".
|
||||||
|
|
||||||
Loading…
Reference in a new issue