monitor mailq

git-svn-id: https://nagiosplug.svn.sourceforge.net/svnroot/nagiosplug/nagiosplug/trunk@163 f882894a-f735-0410-b71e-b25c423dba1c

1 files changed, 179 insertions, 0 deletions

diff --git a/plugins-scripts/check_mailq.pl b/plugins-scripts/check_mailq.pl
new file mode 100755
index 0000000..901209b
--- /dev/null
+++ b/plugins-scripts/check_mailq.pl
@@ -0,0 +1,179 @@
+#!/usr/local/bin/perl -w
+
+# check_mailq - check to see how many messages are in the smtp queue awating
+#   transmittal.  
+#
+# Initial version support sendmail's mailq command
+
+# License Information:
+# This program is free software; you can redistribute it and/or modify
+# it under the terms of the GNU General Public License as published by
+# the Free Software Foundation; either version 2 of the License, or
+# (at your option) any later version.
+#
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+# GNU General Public License for more details.
+#
+# You should have received a copy of the GNU General Public License
+# along with this program; if not, write to the Free Software
+# Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
+#
+############################################################################
+
+use POSIX;
+use strict;
+use Getopt::Long;
+use vars qw($opt_V $opt_h $opt_v $verbose $PROGNAME $opt_w $opt_c $opt_t $status $state $msg $msg_q );
+use lib  utils.pm;
+use utils qw(%ERRORS &print_revision &support &usage );
+
+#my $MAILQ = "/usr/bin/mailq";   # need to migrate support to utils.pm and autoconf
+
+
+sub print_help ();
+sub print_usage ();
+sub process_arguments ();
+
+$ENV{'PATH'}='';
+$ENV{'BASH_ENV'}=''; 
+$ENV{'ENV'}='';
+$PROGNAME = "check_mailq";
+
+Getopt::Long::Configure('bundling');
+$status = process_arguments();
+if ($status){
+        print "ERROR: processing arguments\n";
+        exit $ERRORS{"UNKNOWN"};
+}
+
+$SIG{'ALRM'} = sub {
+        print ("ERROR: timed out waiting for $utils::PATH_TO_MAILQ \n");
+        exit $ERRORS{"WARNING"};
+};
+alarm($opt_t);
+
+## open mailq 
+if ( defined $utils::PATH_TO_MAILQ && -x $utils::PATH_TO_MAILQ ) {
+        if (! open (MAILQ, "$utils::PATH_TO_MAILQ | " ) ) {
+                print "ERROR: could not open $utils::PATH_TO_MAILQ \n";
+                exit $ERRORS{'UNKNOWN'};
+        }
+}else{
+        print "ERROR: Could not find mailq executable!\n";
+        exit $ERRORS{'UNKNOWN'};
+}
+
+# only first line is relevant in this iteration.
+while (<MAILQ>) {
+        if (/mqueue/) {
+                print "$utils::PATH_TO_MAILQ = $_ "if $verbose ;
+                if (/empty/ ) {
+                        $msg = "OK: mailq is empty";
+                        $msg_q = 0;
+                        $state = $ERRORS{'OK'};
+                }elsif ( /(\d+)/ ) {
+                        $msg_q = $1 ;
+
+                        print "msg_q = $msg_q warn=$opt_w crit=$opt_c\n" if $verbose;
+
+                        if ($msg_q < $opt_w) {
+                                $msg = "OK: mailq ($msg_q) is below threshold ($opt_w/$opt_c)";
+                                $state = $ERRORS{'OK'};
+                        }elsif ($msg_q >= $opt_w  && $msg_q < $opt_c) {
+                                $msg = "WARNING: mailq is $msg_q (threshold w = $opt_w)";
+                                $state = $ERRORS{'WARNING'};
+                        }else {
+                                $msg = "CRITICAL: mailq is $msg_q (threshold c = $opt_c)";
+                                $state = $ERRORS{'CRITICAL'};
+                        }
+                        
+                }
+
+                last;
+        }
+        
+}
+
+close (MAILQ); 
+# declare an error if we also get a non-zero return code from mailq
+# unless already set to critical
+if ( $? ) {
+        print "stderr = $? : $! \n" if $verbose;
+        $state = $state == $ERRORS{"CRITICAL"} ? $ERRORS{"CRITICAL"} : $ERRORS{"UNKNOWN"}  ;
+        print "MAILQ error: $!\n" if $verbose;
+}
+## close mailq
+
+# Perfdata support
+print "$msg | mailq = $msg_q\n";
+exit $state;
+
+
+#####################################
+#### subs
+
+
+sub process_arguments(){
+        GetOptions
+                ("V"   => \$opt_V, "version"    => \$opt_V,
+                 "v"   => \$opt_v, "verbose"    => \$opt_v,
+                 "h"   => \$opt_h, "help"               => \$opt_h,
+                 "w=i" => \$opt_w, "warning=i"  => \$opt_w,   # warning if above this number
+                 "c=i" => \$opt_c, "critical=i" => \$opt_c,       # critical if above this number
+                 "t=i" => \$opt_t, "timeout=i"  => \$opt_t 
+                 );
+
+        if ($opt_V) {
+                print_revision($PROGNAME,'$Revision$ ');
+                exit $ERRORS{'OK'};
+        }
+
+        if ($opt_h) {
+                print_help();
+                exit $ERRORS{'OK'};
+        }
+
+        if (defined $opt_v ){
+                $verbose = $opt_v;
+        }
+
+        unless (defined $opt_t) {
+                $opt_t = $utils::TIMEOUT ;      # default timeout
+        }
+
+        unless (  defined $opt_w &&  defined $opt_c ) {
+                print_usage();
+                exit $ERRORS{'UNKNOWN'};
+        }
+
+        if ( $opt_w >= $opt_c) {
+                print "Warning cannot be greater than Critical!\n";
+                exit $ERRORS{'UNKNOWN'};
+        }
+
+        return $ERRORS{'OK'};
+}
+
+sub print_usage () {
+        print "Usage: $PROGNAME [-w <warn>] [-c <crit>] [-t <timeout>] [-v verbose]\n";
+}
+
+sub print_help () {
+        print_revision($PROGNAME,'$Revision$');
+        print "Copyright (c) 2002 Subhendu Ghosh\n";
+        print "\n";
+        print_usage();
+        print "\n";
+        print "   Checks the number of messages in the mail queue\n";
+        print "   Feedback/patches to support non-sendmail mailqueue welcome\n\n";
+        print "-w (--warning)   = Min. number of messages in queue to generate warning\n";
+        print "-c (--critical)  = Min. number of messages in queu to generate critical alert ( w < c )\n";
+        print "-t (--timeout)   = Plugin timeout in seconds (default = $utils::TIMEOUT)\n";
+        print "-h (--help)\n";
+        print "-V (--version)\n";
+        print "-v (--verbose)   = deebugging output\n";
+        print "\n\n";
+        support();
+}