Just FYI, the clock drift is measured by comparing the date/time sent at
the bottom of the client message against the Xymon server clock. I have
some systems on slow network connections and sometimes it takes a couple of
retries for the status report to get through, and by then the client time
is often 10 - 30 seconds adrift.
In other words, it's not simply the client working out that its own clock
is slow.
Ralph Mitchell
On Sep 25, 2013 4:22 PM, "Novosielski, Ryan" <user-6e4f7a3bb37f@xymon.invalid>
wrote:
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On 09/25/2013 04:16 PM, Japheth Cleaver wrote:
On Wed, September 25, 2013 12:35 pm, Novosielski, Ryan wrote:
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Hi all,
I suspect I know the answer to this but want to check:
I'm running Xymon 4.3.12. My manager has recently brought up the
need to have the clock drift monitored (it caused problems with
a DB server when there was massive drift once for some reason).
I looked into how to do this and it looks like the highest level
that clock drift can cause Xymon to alert at is yellow. This
means that if I wanted to be alerted, I'd have to also get
alerted for yellow CPU on that machine, right? So far my only
idea is to raise the yellow level for CPU. I don't really want
to bother with an external test.
Any tips?
According to
http://www.xymon.com/xymon/help/manpages/man5/analysis.cfg.5.html
you should be able to add a line like
CLOCK 15 red
... to an analysis.cfg file (or *.d/ entry) to have it go red if
the clock delta exceeds that absolute value. I have to admit not
having tested that ever though.
If that doesn't work, you might be able to simulate it (or assign
the color to a different test entirely) with a DS entry; something
like:
DS cpu clock.rrd:la <-15 COLOR=red "TEXT=System clock is &V
seconds off" DS cpu clock.rrd:la >15 COLOR=red "TEXT=System clock
is &V seconds off"
Wonderful! I must have been reading an old copy of that documentation
(Google'd for it instead of using what was on the system). Thanks Japheth!
- --
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|| \\UTGERS |---------------------*O*---------------------
||_// Biomedical | Ryan Novosielski - Sr. Systems Programmer
|| \\ and Health | user-46c89e614701@xymon.invalid - 973/972.0922 (2x0922)
|| \\ Sciences | OIT/EI-Academic Svcs. - ADMC 450, Newark
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