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Linux Memory Monitor incorrect value for RAM

I have 2 RHEL servers being monitored by SiteScope 11.24, and both are showing a Negative number (-247% Example ) for the amount of RAM being used. (See attached)

 

We are monitoring hundreds, but these two are the only ones giving a probem.

 

Double checked the Remote Server, and both are selected as Red Hat Enterprise Linux

 

Looked at the output of /usr/bin/free -b

 

[sitescope@remote server ~]$ /usr/bin/free -b
             total       used       free     shared    buffers     cached
Mem:    1352900485 8807852032 4721152819 1785191628 1775632384 7012174643
-/+ buffers/cache: 1618114150 1191089070
Swap:   2587780300          0 2587780300

 

Compared those results to servers that are working, but I don't see a difference.

 

Also, output of debug attached, but I don't see anything that sticks out as a problem.

 

So, at this point I'm not sure what's causing a negative number to be displayed.

 

 

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Re: Linux Memory Monitor incorrect value for RAM

Hello,

 

What is the Sitesope version? (buid #).

Depending of the SiS version we could apply a patch to fix the issue. But, first of all I need to check the version.

 

Thanks in advance,

 

Regards

Esteban Castillo
SW Support Engineer
eeco@hp.com
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Re: Linux Memory Monitor incorrect value for RAM

SiS version  ----    HP SiteScope 11.24.391 64-bit JVM, Build 333

 

 

The work around was to create a Unix Resource, and pull Total and Free Memory and Swap. From there create 2 Calculated metrics called % RAM and % SWAP Used, using the following forumulas.

 

% RAM Used    100-(((<<Memory\MemFree>>)/<<Memory\MemTotal>>)*100)

% SWAP Used  100-(((<<Memory\SwapFree>>)/<<Memory\SwapTotal>>)*100)

 

I would also like pages/sec, but at this point it isn't required.

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