Facing issue with PNP graph for check_mem

[Nilesh]

Hello Team,
We are using NRPE client (v2.1.2) on ubuntu server.
We have added "command[check_mem]=/usr/lib/nagios/plugins/check_mem.sh 
-w $ARG1$ -c $ARG2$"  in nrpe.cfg.
All pnp graph is showing working properly but only "Datasource: USED" 
data is showing in negative (-) value.
Please refer attached screenshot.
Please help as soon as possible.

-- 
	
Nilesh Chavan
Technical Support Engineer
Balasai Net Pvt Ltd
p: +91-20 42700790​ / 25662605 a: F.C. Road, Pune 411016
w: www.balasai.com <https://www.balasai.com>
<https://www.facebook.com/BalasaiNet/>.<https://www.linkedin.com/company/balasai-net-pvt-ltd>.

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