javaproc, sendim

git-svn-id: https://nagiosplug.svn.sourceforge.net/svnroot/nagiosplug/nagiosplug/trunk@211 f882894a-f735-0410-b71e-b25c423dba1c

1 files changed, 278 insertions, 0 deletions

diff --git a/contrib/check_javaproc.pl b/contrib/check_javaproc.pl
new file mode 100644
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+++ b/contrib/check_javaproc.pl
@@ -0,0 +1,278 @@
+#!/usr/bin/perl -w
+
+#
+# Author: Wim Rijnders, 17-10-2002
+#
+# Description:
+# -----------
+#
+# Nagios host script to check if any specified java processes are running.
+#
+# Implementation Notes:
+# ---------------------
+#
+# check_disk_smb was used as a starting point, since it was written in perl.
+#
+# This script has been created and tested on Linux RH 7.1. 
+#
+# I tried OS-X Darwin (BSD), but the ps command works differently.
+# Notably, you can't get a combined list of child processes. The best approach
+# appears to be to use 'ps -wwaxo command' combined with 'ps -M' (or suchlike) 
+#
+########################################################################
+####
+
+require 5.004;
+use POSIX;
+use strict;
+use Getopt::Long;
+use vars qw($opt_w $opt_c $verbose $classname);
+use vars qw($PROGNAME);
+use lib "utils.pm" ;
+use utils qw($TIMEOUT %ERRORS &print_revision &support &usage);
+
+$PROGNAME="check_javaprocs";
+sub getJavaList ();
+sub check_ranges ($ $ $ $);
+
+Getopt::Long::Configure('bundling', 'no_ignore_case');
+GetOptions
+        ("V|version"     => \&version,
+         "h|help"        => \&help,
+         "v|verbose"     => \$verbose,
+         "w|warning=s"   => \$opt_w,
+         "c|critical=s"  => \$opt_c,
+         "n|name=s"      => \$classname
+         );
+
+
+my $state    = 'OK';
+my $min_warn = undef 
+my $max_warn = undef;
+my $min_crit = undef;
+my $max_crit = undef;
+
+
+($opt_w) || ($opt_w = shift);
+check_ranges($opt_w,\$min_warn, \$max_warn, "warning");
+($opt_c) || ($opt_c = shift);
+check_ranges($opt_c,\$min_crit, \$max_crit, "critical");
+
+
+#
+# Determine # of running processes for the java programs that interest us. 
+#
+my @javalist = getJavaList();
+
+my $total = 0;
+my $msgout = "";
+my @fields;
+
+if ( defined $classname ) {
+
+        #filter out a single java process based on class name
+        foreach (@javalist) {
+                @fields = split(/\s+/, $_);
+                $total = $fields[-1] and last if $classname eq $fields[0];
+        }
+        $msgout .=  "$total processes for $classname\n";
+} else {
+        #Handle all java processes
+        $msgout .= "\n";
+        foreach (@javalist) {
+                @fields = split(/\s+/, $_);
+        
+                $total += $fields[-1];
+                $msgout .= "   $fields[-1] processes for ";
+                $msgout .= (scalar @fields > 1)? $fields[0] : "unknown" ;
+                $msgout .= "\n";
+        }
+        my $msgtotal =  "$total java processes for ". scalar @javalist .  " applications";
+
+        if ( defined $verbose ) {
+                $msgout = $msgtotal . $msgout;
+        } else {
+                $msgout = $msgtotal;
+        }
+        
+}
+
+#
+# Set the state with the data we now have accumulated
+# Note that due to the order of testing, warnings have precedence over
+# criticals. This is logical, since you should be able to create a criticals
+# range which encompasses a warning range. eg. following should be possible:
+#
+# check_javaproc -w 5:10 -c 3:12
+# proper specification of the ranges is the responsibility of the script user.
+#
+$state = 'CRITICAL' if (defined $min_crit && $total < $min_crit);
+$state = 'CRITICAL' if (defined $max_crit && $total > $max_crit);
+$state = 'CRITICAL' if (!defined $min_crit && !defined $max_crit && $total==0 );
+$state = 'WARNING' if (defined $min_warn && $total < $min_warn);
+$state = 'WARNING' if (defined $max_warn && $total > $max_warn);
+
+print $msgout;
+print "$state\n" if ($verbose);
+exit $ERRORS{$state};
+
+###################################
+# Support routines for Nagios
+###################################
+sub check_ranges($$$$) {
+        my ($opt, $min, $max, $rangename) = @_;
+        
+        if ( defined $opt ) {
+                if ( $opt =~ /^([0-9]*)\:([0-9]*)$/) {
+                        $$min = $1 if $1 > 0;
+                        $$max= $2 if $2 > 0;
+                } else {
+                        usage("Invalid $rangename range: $opt\n");
+                } 
+        }
+        
+        if ( defined $$min && defined $$max ) {
+                usage("Min value of $rangename range larger than max value: $opt\n") if ( $$min > $$max);
+        }
+}
+
+sub print_usage () {
+        print "Usage: $PROGNAME [-v] [-w <min:max>] [-c <min:max>] [ -n <classname>]\n";
+}
+
+sub print_help () {
+        revision();
+        print "Copyright (c) 2002 by Wim Rijnders
+
+Perl Check java processes plugin for Nagios
+
+";
+        print_usage();
+        print "
+-v, --verbose
+   Return additional information. 
+   Intended as a command-line aid, not recommended for Nagios script usage.
+   
+-w, --warning=INTEGER:INTEGER
+   Minimum and maximum number of processes outside of which a warning will be
+   generated.  If omitted, no warning is generated. 
+   
+-c, --critical=INTEGER:INTEGER
+   Minimum and maximum number of processes outside of which a critical will be
+   generated. If omitted, a critical is generated if no processes are running.
+   
+-n, --name=STRING
+   Name of class specified on the java command line (from which main() is run).
+   If omitted, all java processes are taken into account.
+
+";
+        support();
+}
+
+sub revision() {
+        print_revision($PROGNAME,'$Revision$ ');
+}
+
+sub version () {
+        revision();
+        exit $ERRORS{'OK'};
+}
+
+sub help () {
+        print_help();
+        exit $ERRORS{'OK'};
+}
+
+###################################
+# Routines for delivering the data 
+###################################
+
+#
+# Generate a formatted list of running java processes.
+#
+# Returns an array of strings having the following syntax:
+#
+#       <java class running as main> <parameters if any> <#processes for this class>
+#
+sub getJavaList() {
+
+        my @output;
+
+        # Untaint
+        local $ENV{'PATH'} = '/bin:/usr/bin';   
+        local $ENV{'BASH_ENV'} = '~/.bashrc';   
+        
+        # We are only interested in the full command line
+        # The -H opstion is important for the order of the processes;
+        # this option ensures that all child processes are listed under
+        # their parents
+        @output=`ps -AHo \"\%a\" -ww`;
+        
+        #remove preceding whitespace and final EOL
+        foreach (@output) { 
+                s/^\s*//;
+                chop; 
+        } 
+        
+        #Combine any consecutive processes with exactly the same command line
+        #into a single item
+        @output = checkSameLine(@output);
+        
+        #Filter out all java processes
+        my @javalist;
+        for (my $i = 0; $i < scalar @output; ++$i) {
+                push @javalist, $output[$i] if $output[$i] =~ /^\S*java/;
+        }
+        
+        foreach (@javalist) {
+                #The java statement at the beginning is redundant; remove it
+                s/^\S*java//; 
+        
+                #remove all defines
+                s/\-D\S+//g;
+        
+                #remove classpath
+                s/\-(classpath|cp)\s+\S+//g;
+        
+                #remove any other parameters we don't want to see
+                s/\-server\s+//g;
+                s/\-X\S*\s+//g;
+        
+                #remove any redundant whitespaces at the beginning
+                s/^\s+//;
+
+        }
+
+        @javalist;
+}
+
+
+#
+# Combine all consecutive lines with an identical command line 
+# to a signle line with a count at the end
+#
+sub checkSameLine {
+        my @input  = @_;
+        my @output;
+        my $prevline= "";
+        my $prevcount = 0;
+
+        foreach my $a (@input) {
+                if ( $prevline eq $a) {
+                        ++$prevcount;
+                } else {
+                        push @output, $prevline . " " . ($prevcount + 1);
+                        $prevcount = 0;
+                }
+                $prevline = $a;
+        }
+
+        #don't forget the last item!
+        if ( $prevcount > 0 ) {
+                push @output, $prevline . " " . ($prevcount + 1);
+        }
+
+        @output;
+}
+
+#======= end check_javaproc =====