[Xymon] ps output cut

[J.C. Cleaver]

Gautier,

If it's being truncated by xymond (due to an oversize message), you should
see a line in the xymond.log file (and test) indicating a truncation. If
not, then it's most likely something occurring during during the initial
transport/TCP connection of the report.

Unfortunately, there's no inherent end delimiter, so if something closes
the connection early only a partial data set might come through.

I'd look for a potential network or system issue (sysctl tuning?) that
might be occurring here. We occasionally would see a rash of these when a
DMVPN device connecting a remote datacenter to our where our primary xymon
server was located started acting up.

As a quick patch, you can add "--filter='\\[clock\\]'" to the
xymond_channel options before xymond_client. That should prevent partial
messages from getting parsed by xymond_client into false statuses.


HTH,

-jc


On Thu, April 2, 2015 11:10 pm, Gautier Begin wrote:
> Any news ?
>
> Cordialement, Regards,Mit freundlichen Grüßen,
>
> Gautier BEGIN
>
>
> Global Service Support Solutions - Tools Support
> CACEIS and APERAM accounts
> CSC Computer Sciences Luxembourg S.A.
> 12D Impasse Drosbach
> L-1882 Luxembourg
>
> Global Outsourcing Service | p:+352 24 834 276 | m:+352 621 229 172 |
> gbegin at csc.com | www.csc.com
>
>
> CSC • This is a PRIVATE message. If you are not the intended recipient,
> please delete without copying and kindly advise us by e-mail of the
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>
>
> From:   Gautier Begin/LUX/CSC
> To:     John Horne <john.horne at plymouth.ac.uk>
> Cc:     xymon at xymon.com, "Xymon" <xymon-bounces at xymon.com>
> Date:   04/01/2015 05:18 PM
> Subject:        Re: [Xymon] ps output cut
>
>
> Hello John,
>
>
> Config on the XYMON proxy:
>
> MAXMSGSPERCOMBO="40"            # Default 100 - prev 50 - 0 =>unlimited  |
> decrease if the flow rises
> SLEEPBETWEENMSGS="100000"       # microseconds - prev 5000               |
> increase if the flow does so
>                                 # prev 5000 => but blocking the XYMON
> server
>                                 # prev 10000 => No more blocking but false
> alerts
>
>
>
> Config on the XYMOn server
>
> # Pbl semaphore avec "209715200" => que faire ??
> MAXLINE="209715200"
>
> # Previous value - 10485760
> # Max size of a checkpoint files: 50M => 52428800
> # but mux be double: current + the next one
> MAXMSG_CLIENT="209715200"
>   MAXMSG_DATA="209715200"
> MAXMSG_STATUS="209715200"
> MAXMSG_STACHG="209715200"               # No reason to change -  Current
> value of the MAXMSG_STATUS setting ( 256 )
> MAXMSG_NOTES="1229056"          # Not used ?
>   MAXMSG_PAGE="209715200"               # No reason to change -  Current
> value of the MAXMSG_STATUS setting ( 256 )
> MAXMSG_ENADIS="614656"          # Not used ?
> MAXMSG_CLICHG="209715200"       #  Default: Current value of the
> MAXMSG_CLIENT setting ( 512 )
>
>
> Cordialement, Regards,Mit freundlichen Grüßen,
>
> Gautier BEGIN
>
>
> Global Service Support Solutions - Tools Support
> CACEIS and APERAM accounts
> CSC Computer Sciences Luxembourg S.A.
> 12D Impasse Drosbach
> L-1882 Luxembourg
>
> Global Outsourcing Service | p:+352 24 834 276 | m:+352 621 229 172 |
> gbegin at csc.com | www.csc.com
>
>
> CSC • This is a PRIVATE message. If you are not the intended recipient,
> please delete without copying and kindly advise us by e-mail of the
> mistake in delivery.  NOTE: Regardless of content, this e-mail shall not
> operate to bind CSC to any order or other contract unless pursuant to
> explicit written agreement or government initiative expressly permitting
> the use of e-mail for such purpose
>  •
> CSC Computer Sciences SAS • Registered Office: Immeuble Le Balzac, 10
> Place des Vosges, 92072 Paris La Défense Cedex, France • Registered in
> France: RCS Nanterre B 315 268 664
>
>
>
>
> From:   John Horne <john.horne at plymouth.ac.uk>
> To:     xymon at xymon.com
> Date:   04/01/2015 04:37 PM
> Subject:        Re: [Xymon] ps output cut
> Sent by:        "Xymon" <xymon-bounces at xymon.com>
>
>
>
> On Wed, 2015-04-01 at 15:11 +0200, Gautier Begin wrote:
>>
>> On machines having a long ps output, the output arrived cut in the
>> XYMON server, provoking false alert on the check of the presence of
>> processes.
>> How to solve that ?
>>
> Increase the 'MAXMSG_CLIENT' setting in 'xymonserver.cfg'. The
> xymonserver.cfg man page has details about it:
> https://www.xymon.com/help/manpages/man5/xymonserver.cfg.5.html
>
>
>
> John.
>
> --
> John Horne                   Tel: +44 (0)1752 587287
> Plymouth University, UK
>
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