check_mem shows : "NRPE: Unable to read output"

[Jatin Davey]

Hi Marquez

I ran the command in the same as you said and i am getting the following 
error:

[root at mcs-linux-2 etc]# /usr/bin/sudo 
/usr/local/nagios/libexec/check_mem.pl -w 10 -c 5
Sorry, user root is not allowed to execute 
'/usr/local/nagios/libexec/check_mem.pl -w 10 -c 5' as root on mcs-linux-2.

Please let me know what to do.

Thanks
Jatin

On 3/12/2010 3:03 PM, Marquez, Quentin wrote:
> Jatin,
>
> Here is how I use it with sudo :
>
> In my nrpe.cfg :
> command[check_mem]=/usr/bin/sudo
> /usr/local/nagios-plugins/current/libexec/check_mem.pl -w 10 -c 5
>
> visudo :
> User_Alias      SU_TO_NAGIOS_PLUGINS_USER = nagios
> Cmnd_Alias      SU_TO_NAGIOS_PLUGINS =
> /usr/local/nagios-plugins/current/libexec/check_mem.pl -w 10 -c 5
> SU_TO_NAGIOS_PLUGINS_USER ALL = NOPASSWD: SU_TO_NAGIOS_PLUGINS
>
> Root permissions will allow nagios to read memory attributes.
>
> ++
> Quentin
>
> -----Original Message-----
> From: Jatin Davey [mailto:jashokda at cisco.com]
> Sent: 12 March 2010 08:08
> To: Nagios Mailinglist
> Subject: [Nagios-users] check_mem shows : "NRPE: Unable to read output"
>
> Hi
>
> I had downloaded the perl file for check_mem plugin and copied in the
> libexec folder of the target machine that needs to be monitored. On the
> localhost it returns correct values but when i shoot the command from
> the nagios server using NRPE i am getting the following :
>
> NRPE: Unable to read output
>
> Is it an issue with NRPE or check_mem plugin.
>
> The output for check_mem on the localhost is :
>
> <b>CRITICAL: Memory Usage (W>  5, C>  6): 30%<br>Swap Usage (W>  5, C>  6):
>
> 1%</b>|MemUsed=30%;5;6 SwapUsed=1%;5;6
>
> I have defined the command also in the nrpe.cfg file. All other commands
>
> work fine except for the check_mem plugin.
>
> Please let me know what to do next.
>
> Thanks
> Jatin
>
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------------------------------------------------------------------------------
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Try the new software tools for yourself. Speed compiling, find bugs
proactively, and fine-tune applications for parallel performance.
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http://p.sf.net/sfu/intel-sw-dev
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