Nagios Support Forum

Posted: **Wed Jan 02, 2013 4:12 pm**

I have installed the VMware SDK for PERL 5.1 and am attempting to monitor the host storage with the plugin from the Nagios Exchange (http://www.op5.com/how-to/monitoring-vm ... er-server/).

From the command-line the output seems OK:

Code: Select all

indy-as-l-11:/etc/nagios3/conf.d# /usr/lib/nagios/plugins/check_esx3-0.5.pl -u nagios -p mypass -H indy-rvs-e-01 -l vmfs -s datastore2 -w 80% -c 90%
     
CHECK_ESX3-0.5.PL OK - Storages : datastore2=26261.00 MB (4.73%) | datastore2=4.73%;80;90

When the same command is run by Nagios, in "Service State Information", "Current Status" shows correctly (OK,WARNING, or CRITICAL), however the "Status Information" shows "null" rather than the details. The only thing I notice different about the output from other plugins are spaces on either side of the pipe symbol.

Would that cause the problem?

/var/log/nagios3/nagios.log entries:

Code: Select all

[1357228890] EXTERNAL COMMAND: SCHEDULE_FORCED_SVC_CHECK;vmware_host_1;VMware VMFS main-storage;1357228888
[1357228894] SERVICE ALERT: vmware_host_1;VMware VMFS main-storage;CRITICAL;SOFT;1;(null)

/var/log/nagios3/nagios.debug:

Code: Select all

[1357228890.142607] [016.0] [pid=32354] Scheduling a forced, active check of service 'VMware VMFS main-storage' on host 'vmware_host_1' @ Thu Jan  3 11:01:28 2013
[1357228890.392796] [016.0] [pid=32354] Attempting to run scheduled check of service 'VMware VMFS main-storage' on host 'vmware_host_1': check options=1, latency=2.392000
[1357228890.392842] [016.0] [pid=32354] Checking service 'VMware VMFS main-storage' on host 'vmware_host_1'...
[1357228890.393018] [016.1] [pid=32354] Check result output will be written to '/var/lib/nagios3/spool/checkresults/checkYwln3e' (fd=7)

/tmp/nagios_debug.log (from the check_debug.sh plugin)

Code: Select all

Thu Jan 3 10:56:27 EST 2013 /usr/lib/nagios/plugins/check_esx3-0.5.pl -u nagios -p readonly -H crml-vs-e-01 -l vmfs -o 'used,breif' -w 80% -c 90%
CHECK_ESX3-0.5.PL OK - Storages : datastore1=329761.00 MB (79.86%) | datastore1=79.86%;80;90
Exit code: 0

I added the following to config.d/commands.cfg:

Code: Select all

define command{
        command_name    check_esx_storage
        command_line    $USER1$/check_debug.sh "PERL_LWP_SSL_VERIFY_HOSTNAME=0;$USER1$/check_esx3 -H $HOSTADDRESS$ -u $USER3$ -p $USER4$ -l vmfs -s $ARG1$ -w “$ARG2$:” -c “$ARG3$:”"
}

And the service added to services.cfg:

Code: Select all

define service {
       hostgroup_name                  vmware-hosts
       service_description             vmware_storage
       check_command                   check_esx_storage!datastore1!70%:!90%:
       use                             generic-service
       notification_interval           15
}

Posted: **Thu Jan 03, 2013 11:55 am**

It appears that after your check, per the first code block above, that your plugin is returning an empty line first and that is why you are getting a null value. It appears that they upgraded to .5 at some point, and that may be causing the issue. You might try to find the original revision without a version number.

Posted: **Thu Jan 03, 2013 2:05 pm**

Thanks for the reply, however that line was inserted by me to make it readable in the post. The plugin does in fact return only a single line (see the nagios_debug log output) from the server's perspective.

Posted: **Tue Jan 29, 2013 2:13 pm**

Was this ever resolved?

Nagios Support Forum

ESX Plugin check_esxi3 vmfs status null

ESX Plugin check_esxi3 vmfs status null

Re: ESX Plugin check_esxi3 vmfs status null

Re: ESX Plugin check_esxi3 vmfs status null

Re: ESX Plugin check_esxi3 vmfs status null