[Xymon] Parsing problems with client reports

Scot Kreienkamp Scot.Kreienkamp at la-z-boy.com
Wed Dec 14 16:48:07 CET 2016

Not sure what those switches do but the xymon server has been much quieter since they were applied.

Scot Kreienkamp  | Senior Systems Engineer | La-Z-Boy Corporate
One La-Z-Boy Drive | Monroe, Michigan 48162 | Office: 734-384-6403 | | Mobile: 7349151444 | Email: Scot.Kreienkamp at la-z-boy.com
From: Xymon [mailto:xymon-bounces at xymon.com] On Behalf Of Japheth Cleaver
Sent: Tuesday, December 13, 2016 12:00 PM
To: xymon at xymon.com
Subject: Re: [Xymon] Parsing problems with client reports

On 12/13/2016 7:01 AM, Scot Kreienkamp wrote:
Hello list,

Has anyone been working on the problem where reports from clients are getting confused on the server?  I am getting multiple false alerts daily now where it will turn back to green at the next test, and when I go to look at the test in xymon it’s because it’s only got partial information.  In multiple instances now I’ve been able to see the report from another client, in part or in full, in one clients page.  In the most recent incident last week I could see the beginning client line from another windows client report halfway down in the ports test for a Linux client.

All the false reports are really damaging the trust we place in Xymon to monitor our systems, and people are starting to just delete the warning emails without looking at them because we get so many false reports now.


Scot Kreienkamp | Senior Systems Engineer | La-Z-Boy Corporate
One La-Z-Boy Drive | Monroe, Michigan 48162  | • 734-384-6403 | | • 7349151444 | •  Scot.Kreienkamp at la-z-boy.com<mailto:%7BE-mail%7D>
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Can you enable MALLOC_PERTURB_=1 and MALLOC_CHECK_=3 in the xymon environment? I've noticed this occasionally in the past and added debugging logic, but I wasn't able to reliably duplicate it. I noticed that it did seem to happen more often when the server was under memory pressure and didn't seem to be related to truncated (or garbled) incoming TCP connections.

Also, what version and distro?


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