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Xymon reports excessive memory usage on 1 SLES 11 host

list Carl Melgaard
Wed, 15 Dec 2010 09:29:45 +0100
Message-Id: <user-de78e8ba6f71@xymon.invalid>

Hi,

"free" just gives the normal output, but sometimes it apparently reports bogus data on 1 host. Shrug. And it's the same version running across all the hosts. Thanks for looking into it tho.

Regards,

Carl Melgaard

Fra: Ralph Mitchell [mailto:user-00a5e44c48c0@xymon.invalid]
Sendt: 14. december 2010 18:57
Til: xymon at xymon.com
Emne: Re: [xymon] Xymon reports excessive memory usage on 1 SLES 11 host

That looks like output from the 'free' command.  Try going to the server and entering

     free

and see what it says.  Xymon doesn't alter the output at all, it just passes on whatever comes out.  Here's the relevant part of xymonclient-linux.sh, with context:

     echo "[mount]"
     mount
     echo "[free]"
     free
     echo "[ifconfig]"
     /sbin/ifconfig


Ralph Mitchell

On Tue, Dec 14, 2010 at 5:16 AM, Carl Melgaard <user-cdea55422fa4@xymon.invalid<mailto:user-cdea55422fa4@xymon.invalid>> wrote:
Hi,
as you can see, it reports an excessive memory usage
Could you show me the client data behind this report?
Assuming you have the "hostdata" task running, it should be
available from the historical status log via the "Client data available"
link near the bottom of the page.

It is the "[free]" section that is interesting for the memory
report.
Here are two separate [free] sections (from history), that resulted in red alerts:

[free]
            total       used       free     shared    buffers     cached
Mem:       3921396    3894772      26624          0     302132    3887292
-/+ buffers/cache: 18014398509187332    4216048
Swap:      2104472        904    2103568

- and

[free]
            total       used       free     shared    buffers     cached
Mem:       3921396    3851576      69820          0     319192    3903296
-/+ buffers/cache: 18014398509111072    4292308
Swap:      2104472        904    2103568

- two different days.
Also, what version of Xymon are you running on your Xymon server?
Im actually running 4.4.0-1 on the server, as I was bold when I implemented Xymon originally.

Regards,

Carl Melgaard