check_mem shows : "NRPE: Unable to read output"

[Jatin Davey]

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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