[hobbit] xymon ready to replace bb?

[Martin Flemming]

Hi, Harald !

> Xymon with Linux HA cluster with DRBD

did you make some doku's or notes for it ?

.. there is an old thread from Februar but unfortunatley no notes till this moment ...

http://www.hswn.dk/hobbiton/2009/02/msg00146.html

But there is already some place for it :-)

http://en.wikibooks.org/wiki/System_Monitoring_with_Xymon/Administration_Guide#Hobbit_in_HA

HA-LAN using LinuxHA and DRBD

[edit]


If you have some notes, please contact T.J. Yang <tj_yang at hotmail.com>
to submit it to the wiki


cheers,

        Martin


______________________________________________________
Martin Flemming
DESY / IT          office : Building 2b / 008a
Notkestr. 85       phone  : 040 - 8998 - 4667
22603 Hamburg      mail   : martin.flemming at desy.de
______________________________________________________

On Thu, 26 Mar 2009, Husemann, Harald wrote:

> Hi,
>
> for the failover part, what about using a real cluster like Linux HA cluster 
> with DRBD? I've setup such a system a few weeks ago for us.
>
> hh
>
> Ralph Mitchell schrieb:
>>  Take a look at the Xymon alert man page:
>>
>>  http://www.hswn.dk/hobbit/help/manpages/man5/hobbit-alerts.cfg.5.html
>>
>>  You can specify a script to be executed for any given alert.  The ALERT
>>  SCRIPTS section in the man page gives details of the environment variables
>>  passed in with the the alert information.  So, you could write a script to
>>  send snmp traps.
>>
>>  I don't know about alert failover.
>>
>>  Ralph Mitchell
>>
>>  On Wed, Mar 25, 2009 at 9:07 PM, J Sloan <joe at tmsusa.com> wrote:
>>
>>
>>   After a bit of a hiatus from bb/hobbit/xymon issues, I'm looking at it
>>   again.
>>
>>   I've grabbed a copy of xymon-4.4.0 svn and set it up on a test server
>>   here -  very nice.
>>
>>   As hope springs eternal, I'm again hoping to replace our aging big
>>   brother servers with xymon, since it's the closest thing to a drop-in
>>   replacement. Hopefully xymon can be made to do some specific things that
>>   bb does, which we depend on here, namely:
>>
>>   1. snmp traps - this is just a basic requirement to send out an snmp trap
>>   on an alert. We have no need to receive snmp traps, only to send them, as
>>   big brother does. We depend on that behavior to generate tickets by
>>   sending traps to netcool whenever there is a bb alert condition.
>>
>>   2. alerting failover - we have redundant bb servers are set up, in pairs.
>>   each pair of bb servers monitors certain network segments, while only one
>>   of the pair is designated as the bbpager, i.e. only one of the pair sends
>>   out alerts. But, should the passive bbpager be unable to reach the
>>   normally active bbpager, failover kicks in, and the normally passive
>>   server begins sending out all alerts. Worst case, we have a split brain
>>   condition and get 2 copies of an alert, but in practice, that's only
>>   happened a handful of times since 2005.
>>
>>   Can xymon 4.4.0 do these things, or is there a way to implement this
>>   behavior with some appropriate add-ons?
>>
>>   Joe
>>
>>
>>
>>
>>
>> 
>
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> Harald Husemann
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