SV: [xymon] Xymon reports excessive memory usage on 1 SLES 11 host

[Tim McCloskey]

Thanks Vernon.  I know that what we see is not 100% accurate but for the majority of my zones they are only used for one purpose (only one child zone per phys server).  So, for me, the data provided from the zone is useful.  We don't really measure exact numbers, more of trends and watching for quick spikes.  
________________________________________
From: Vernon Everett [everett.vernon at gmail.com]
Sent: Tuesday, December 14, 2010 7:16 PM
To: xymon at xymon.com
Subject: Re: SV: [xymon] Xymon reports excessive memory usage on 1 SLES 11 host

Not much point in doing memory monitoring on a Solaris sparse zone.
Might as well put a check in the client script to not collect memory info for a sparse zone with capped memory.
See here for more info.
http://www.xymon.com/archive/2010/02/msg00213.html

Regards
     Vernon


On Wed, Dec 15, 2010 at 6:11 AM, Tim McCloskey <tm at freedom.com<mailto:tm at freedom.com>> wrote:
Henrik,

Thanks for the speedy answer.  I had seen this in fun in hobbitd/client/$clients.c.  You must enjoy porting that part of the project each time some OS makes a change :)

Trivia:
On Solaris 10 zones prtconf can get the installed "Memory size:"  But anything further (like prtdiag) will fail.

System Configuration:  Sun Microsystems  i86pc
Memory size: 32768 Megabytes
System Peripherals (Software Nodes):

prtconf: devinfo facility not available



Regards,

Tim


________________________________________
From: Henrik Størner [henrik at hswn.dk<mailto:henrik at hswn.dk>]
Sent: Tuesday, December 14, 2010 1:50 PM
To: xymon at xymon.com<mailto:xymon at xymon.com>
Subject: Re: SV: [xymon] Xymon reports excessive memory usage on 1 SLES 11 host

On Tue, 14 Dec 2010 13:42:21 -0800, Tim McCloskey wrote:

> What does the Solaris client use to get this data?  vmstat? (free is not
> a native solaris tool).

Each OS has their own way of reporting memory utilisation - it is
completely non-standard, and the one part of the Xymon client that
requires the most code for each new OS!

Specifically for Solaris, Xymon uses prtconf to determine how
much memory is installed, and vmstat to determine how much is
being used. "swap -s" was used for determining how much swap was
being used, but earlier today I committed an update so we will
now use "swap -l" instead.



Regards,
Henrik

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