My general misunderstanding of netxms collected data

Started by teddymills, November 25, 2011, 06:48:38 PM

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teddymills


I think I have a major misunderstanding of how netxms works.

My netxms server is Windows 2003/HMail. 
My netxms agents are running on Linux Ubuntu servers.
I use only netxms agents and no other collection method.

Today I was comparing the load and the number of apache2 processes running.

"w" was reporting entirely different load numbers than what netxms was reporting.
The number of apache2 processes actually running was entirely different than what netxms was reporting.

Here is where I think I am going wrong.

I had assumed if I am checking the

1) load average every minute, netxms agent will report the actual load average
2) or number of apache2 processes, netxms agent will report the actual number of apache2 processes running at that time.


Why I think what the linux os/system and netxms differ is because I think...
netxms is reporting the AVERAGE load over that time, and the AVERAGE NUMBER of APACHE2 processes over that time.

This is the only reason I can think of why the linux/os/system would be so different than the netxms values.

Another reason could be I am using delta values, but since I do not know how to setup or use delta values I doubt that is it.

I highly doubt netxms is reporting bad data, it is extremely likely I have not setup mty netxms collection/DCI or some other setting properly.

Please advise+TIA!

Teddy


Victor Kirhenshtein

Hi!

Could you please provide some additional information:

1. actual numbers for load average reported by NetXMS and by OS tools;
2. Output of ps fax command, exact parameter name (probably "Process.Count(apache2)"?), and result returned by parameter.
3. Version of NetXMS agent;
4. Result of uname -a

Best regards,
Victor