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

Phil Meech pmeech at gmail.com
Mon May 23 16:57:36 CEST 2011


Hi Henrick,

Thanks for your input; it has solved my issue!

Cheers,
Phil

On 23 May 2011 15:23, Henrik Størner <henrik at hswn.dk> wrote:
>> 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
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