Comments on: Update 1.3: Apache check plugin for Nagios

By: minzel

minzel — Sun, 21 Mar 2010 02:14:48 +0000

following should set for httpd.conf:

ExtendedStatus On


  SetHandler server-status

  Order deny,allow

  Deny from all

  Allow from 127.0.0.1

By: Andrew Jones

Andrew Jones — Mon, 15 Mar 2010 10:09:26 +0000

Hi I’m getting something of a similar problem. I get the following error when running : ./check_apache2.sh -H xx.xx.xx -P 80 -t 3 -b /usr/sbin -p /var/run -n httpd.pid -s server-status -S -R -wr 100 -cr 250

(standard_in) 2: parse error
./check_apache2.sh: line 277: [: too many arguments
./check_apache2.sh: line 281: [: -ge: unary operator expected
OK - Apache serves Requests per second with an average CPU utilization of 0%. Busy workers: , idle: | 'cpu_load'=0 'req_psec'= 'bytes_psec'= 'bytes_preq'= 'workers_busy'= 'workers_idle'=

The output from an sh -x is as follows:

++ basename ./check_apache2.sh
+ PROGNAME=check_apache2.sh
+ VERSION='Version 1.3,'
+ AUTHOR='2009, Mike Adolphs (http://www.matejunkie.com/)'
+ ST_OK=0
+ ST_WR=1
+ ST_CR=2
+ ST_UK=3
+ hostname=localhost
+ port=80
+ remote_srv=0
+ path_binary=/usr/sbin
+ path_pid=/var/run
+ name_pid=apache2.pid
+ status_page=server-status
+ timeout=3
+ secure=0
+ running=0
+ wcdiff_req=0
+ wclvls_req=0
+ test -n -H
+ case "$1" in
+ hostname=xx.xx.xx
+ shift
+ shift
+ test -n -P
+ case "$1" in
+ port=80
+ shift
+ shift
+ test -n -t
+ case "$1" in
+ timeout=3
+ shift
+ shift
+ test -n -b
+ case "$1" in
+ path_binary=/usr/sbin
+ shift
+ shift
+ test -n -p
+ case "$1" in
+ path_pid=/var/run
+ shift
+ shift
+ test -n -n
+ case "$1" in
+ name_pid=httpd.pid
+ shift
+ shift
+ test -n -s
+ case "$1" in
+ status_page=server-status
+ shift
+ shift
+ test -n -S
+ case "$1" in
+ secure=1
+ shift
+ test -n -R
+ case "$1" in
+ remote_srv=1
+ shift
+ test -n -wr
+ case "$1" in
+ warn_req=100
+ shift
+ shift
+ test -n -cr
+ case "$1" in
+ crit_req=250
+ shift
+ shift
+ test -n ''
+ val_wcdiff_req
+ '[' '!' -z 100 -a '!' -z 250 ']‘
+ wclvls_req=1
+ ‘[' 100 -gt 250 ']‘
+ ‘[' 0 = 1 ']‘
+ ‘[' 0 = 2 ']‘
+ ‘[' 0 = 3 ']‘
+ ‘[' 1 = 0 ']‘
+ get_status
+ ‘[' 1 = 1 ']‘
++ wget -qO- –no-check-certificate -t 3 -T 3 ‘https://xx.xx.xx:80/server-status?auto’
+ server_status1=
+ sleep 1
++ wget -qO- –no-check-certificate -t 3 -T 3 ‘https://xx.xx.xx:80/server-status?auto’
+ server_status2=
+ get_vals
++ cpu_load=0
++ ps -Ao pcpu,args
++ grep /usr/sbin/apache2
++ awk ‘{print $1}’
++ read line
+++ echo ‘scale=3; 0 + 0.0′
+++ bc -l
++ cpu_load=0
++ echo 0
++ read line
+ cpu_load=0
++ echo 0
++ awk ‘{print $NF}’
++ sed ‘s/^\./0./’
+ cpu_load=0
++ echo
++ awk ‘{print $3}’
+ tmp1_req_psec=
++ echo
++ awk ‘{print $3}’
+ tmp2_req_psec=
++ echo ‘scale=2; – ‘
++ bc -l
++ sed ‘s/^\./0./’
(standard_in) 2: parse error
+ req_psec=
++ echo
++ sed ‘s/^\./0./’
++ awk ‘{print $14}’
+ bytes_psec=
++ echo
++ awk ‘{print $16}’
++ sed ‘s/^\./0./’
+ bytes_preq=
++ echo
++ awk ‘{print $18}’
++ sed ‘s/^\./0./’
+ wkrs_busy=
++ echo
++ awk ‘{print $20}’
++ sed ‘s/^\./0./’
+ wkrs_idle=
+ do_output
+ output=’Apache serves Requests per second with an average CPU utilization of 0%. Busy workers: , idle: ‘
+ do_perfdata
+ perfdata=”\”cpu_load’\”=0 ‘\”req_psec’\”= ‘\”bytes_psec’\”= ‘\”bytes_preq’\”= ‘\”workers_busy’\”= ‘\”workers_idle’\”=’
+ ‘[' 1 = 1 ']‘
+ ‘[' -ge 100 -a -lt 250 ']‘
./check_apache2.sh: line 277: [: too many arguments
+ '[' -ge 250 ']‘
./check_apache2.sh: line 281: [: -ge: unary operator expected
+ echo ‘OK – Apache serves Requests per second with an average CPU utilization of 0%. Busy workers: , idle: | ‘\”cpu_load’\”=0 ‘\”req_psec’\”= ‘\”bytes_psec’\”= ‘\”bytes_preq’\”= ‘\”workers_busy’\”= ‘\”workers_idle’\”=’
+ exit 0

By: Jason

Jason — Wed, 16 Dec 2009 19:30:38 +0000

Nevermind, I figured it out. I had to put ExtendedStatus On in my httpd.conf. This should help the others with this issue.

Thanks,
Jason

By: Jason

Jason — Wed, 16 Dec 2009 18:45:15 +0000

I’m getting the same error with regards to the illegal character. It’s a CentOS5 box. I have bc installed.

Here is the output of the script.

[root@FDT-CLEMGT031 libexec]# sh -x ./check_apache2.sh -H 10.1.10.33 -P 80 -t 10 -b /usr/local/apache2/bin -p /usr/local/apache2/logs -n httpd.pid -s server-status
++ basename ./check_apache2.sh
+ PROGNAME=check_apache2.sh
+ VERSION=’Version 1.3,’
+ AUTHOR=’2009, Mike Adolphs (http://www.matejunkie.com/)‘
+ ST_OK=0
+ ST_WR=1
+ ST_CR=2
+ ST_UK=3
+ hostname=localhost
+ port=80
+ remote_srv=0
+ path_binary=/usr/sbin
+ path_pid=/var/run
+ name_pid=apache2.pid
+ status_page=server-status
+ timeout=3
+ secure=0
+ running=0
+ wcdiff_req=0
+ wclvls_req=0
+ test -n -H
+ case “$1″ in
+ hostname=10.1.10.33
+ shift
+ shift
+ test -n -P
+ case “$1″ in
+ port=80
+ shift
+ shift
+ test -n -t
+ case “$1″ in
+ timeout=10
+ shift
+ shift
+ test -n -b
+ case “$1″ in
+ path_binary=/usr/local/apache2/bin
+ shift
+ shift
+ test -n -p
+ case “$1″ in
+ path_pid=/usr/local/apache2/logs
+ shift
+ shift
+ test -n -n
+ case “$1″ in
+ name_pid=httpd.pid
+ shift
+ shift
+ test -n -s
+ case “$1″ in
+ status_page=server-status
+ shift
+ shift
+ test -n ”
+ val_wcdiff_req
+ ‘[' '!' -z '' -a '!' -z '' ']‘
+ ‘[' '!' -z '' -a -z '' ']‘
+ ‘[' -z '' -a '!' -z '' ']‘
+ ‘[' 0 = 1 ']‘
+ ‘[' 0 = 2 ']‘
+ ‘[' 0 = 3 ']‘
+ ‘[' 0 = 0 ']‘
++ check_pid
++ ‘[' -f /usr/local/apache2/logs/httpd.pid ']‘
++ retval=0
+ running=
+ check_pid
+ ‘[' -f /usr/local/apache2/logs/httpd.pid ']‘
+ retval=0
+ get_status
+ ‘[' 0 = 1 ']‘
++ wget -qO- -t 3 -T 10 ‘http://10.1.10.33:80/server-status?auto’
+ server_status1=’BusyWorkers: 1
IdleWorkers: 7
Scoreboard: _______W…………………………………………………………………………………………………………………………………………………………………………………………………………………………..’
+ sleep 1
++ wget -qO- -t 3 -T 10 ‘http://10.1.10.33:80/server-status?auto’
+ server_status2=’BusyWorkers: 1
IdleWorkers: 7
Scoreboard: _W______…………………………………………………………………………………………………………………………………………………………………………………………………………………………..’
+ get_vals
++ cpu_load=0
++ ps -Ao pcpu,args
++ grep /usr/local/apache2/bin/httpd
++ awk ‘{print $1}’
++ read line
+ cpu_load=
++ echo
++ awk ‘{print $NF}’
++ sed ‘s/^\./0./’
+ cpu_load=
++ echo BusyWorkers: 1 IdleWorkers: 7 Scoreboard: _______W…………………………………………………………………………………………………………………………………………………………………………………………………………………………..
++ awk ‘{print $3}’
+ tmp1_req_psec=IdleWorkers:
++ echo BusyWorkers: 1 IdleWorkers: 7 Scoreboard: _W______…………………………………………………………………………………………………………………………………………………………………………………………………………………………..
++ awk ‘{print $3}’
+ tmp2_req_psec=IdleWorkers:
++ echo ‘scale=2; IdleWorkers: – IdleWorkers:’
++ bc -l
(standard_in) 1: illegal character: I
(standard_in) 1: illegal character: W
(standard_in) 1: parse error
(standard_in) 1: illegal character: :
(standard_in) 1: illegal character: I
(standard_in) 1: illegal character: W
(standard_in) 1: parse error
(standard_in) 1: illegal character: :
++ sed ‘s/^\./0./’
+ req_psec=
++ echo BusyWorkers: 1 IdleWorkers: 7 Scoreboard: _______W…………………………………………………………………………………………………………………………………………………………………………………………………………………………..
++ awk ‘{print $14}’
++ sed ‘s/^\./0./’
+ bytes_psec=
++ awk ‘{print $16}’
++ sed ‘s/^\./0./’
++ echo BusyWorkers: 1 IdleWorkers: 7 Scoreboard: _______W…………………………………………………………………………………………………………………………………………………………………………………………………………………………..
+ bytes_preq=
++ echo BusyWorkers: 1 IdleWorkers: 7 Scoreboard: _______W…………………………………………………………………………………………………………………………………………………………………………………………………………………………..
++ awk ‘{print $18}’
++ sed ‘s/^\./0./’
+ wkrs_busy=
++ echo BusyWorkers: 1 IdleWorkers: 7 Scoreboard: _______W…………………………………………………………………………………………………………………………………………………………………………………………………………………………..
++ awk ‘{print $20}’
++ sed ‘s/^\./0./’
+ wkrs_idle=
+ do_output
+ output=’Apache serves Requests per second with an average CPU utilization of %. Busy workers: , idle: ‘
+ do_perfdata
+ perfdata=”\”cpu_load’\”= ‘\”req_psec’\”= ‘\”bytes_psec’\”= ‘\”bytes_preq’\”= ‘\”workers_busy’\”= ‘\”workers_idle’\”=’
+ ‘[' 0 = 1 ']‘
+ echo ‘OK – Apache serves Requests per second with an average CPU utilization of %. Busy workers: , idle: | ‘\”cpu_load’\”= ‘\”req_psec’\”= ‘\”bytes_psec’\”= ‘\”bytes_preq’\”= ‘\”workers_busy’\”= ‘\”workers_idle’\”=’
OK – Apache serves Requests per second with an average CPU utilization of %. Busy workers: , idle: | ‘cpu_load’= ‘req_psec’= ‘bytes_psec’= ‘bytes_preq’= ‘workers_busy’= ‘workers_idle’=
+ exit 0
[root@FDT-CLEMGT031 libexec]#

By: Mike Adolphs

Mike Adolphs — Thu, 03 Dec 2009 11:28:50 +0000

Please check whether bc is installed. Simply “sudo aptitude install bc” and everything should be fine.

If not, please do an “sh -x check_apache2.sh” and mail me its output. Thanks in advance and sorry for the late response Anton.

By: Christophe

Christophe — Thu, 03 Dec 2009 10:59:05 +0000

Hi,

thank-you first for your plugin.

I have the same error (“(standard_in) 1: illegal character: I …”) without any change into your code.

FYI the System is an Ubuntu 9.10 Workstation 32 bits on VirtualBox.

Any idea ? Thank-you in advance, Christophe.

By: Anton

Anton — Sat, 21 Nov 2009 20:26:34 +0000

Hi!

have a roblem with your plugin : (
have changed parameers insite, they are rigt,get illegaö charter errors

[root@localhost libexec]# ./check_apache2.sh
(standard_in) 1: illegal character: I
(standard_in) 1: illegal character: W
(standard_in) 1: parse error
(standard_in) 1: illegal character: :
(standard_in) 1: illegal character: I
(standard_in) 1: illegal character: W
(standard_in) 1: parse error
(standard_in) 1: illegal character: :
OK – Apache serves Requests per second with an average CPU utilization of 0%. Busy workers: , idle: | ‘cpu_load’=0 ‘req_psec’= ‘bytes_psec’= ‘bytes_preq’= ‘workers_busy’= ‘workers_idle’=

Thank you in advance!

By: Klaus

Klaus — Tue, 27 Oct 2009 12:38:27 +0000

On a Slackware System it should be $path_binary/httpd instead of $path_binary/apache2
Correct or incorrect path to pid file makes no difference somehow for me. ;)