[Xymon] Fwd: Xymon 4.3.2 http flapping with SSL error

Henrik Størner henrik at hswn.dk
Mon May 23 16:23:49 CEST 2011


> I seem to have a bit of a problem with a large amount of devices
> reporting http flapping.  I am monitoring in hosts.cfg
> https://[ip_address]:444.  The SSL column always remains green, but
> the http column flaps with the status message:
>
> https://[ip_address]:444/ - SSL error

This usually means that connecting to the service failed. There might be 
some additional information in the xymonnet logfile.

The "sslcert" column (I assume that is the one you mean) only reports 
the status of the SSL certificate; it it cannot connect to the server 
then there is no certificate to report on, and hence that status is not 
updated (and will eventually go purple).

> status?  I have 90 such devices that consume a lot of RAM and the CPU
> regularly goes up to 90%+ (I collect SNMP stats via devmon so the
> flapping here can be controlled with thresholds).  I presume this is
> why the http response can be slow, though it would normally return in
> 8s.

If increasing the timeout doesn't help, perhaps you can use something 
like "badhttp:3:3:5" to delay alerting until the test has failed for 
more than one poll cycle ? This example would cause it to go yellow for 
3 poll cycles (15 minutes) and red after 5 cycles (25 minutes).


Regards,
Henrik



More information about the Xymon mailing list