Re: [hobbit] xymon ready to replace bb?

[Martin Flemming <martin.flemming (at) desy.de>]

Hi, Harald !

.. good question ... but it should not be a religious question .. :-)

.. but i think, in both ways, you need a registration for the
rights to append your notes ...

So obvisously, it should the best way for all Xymon's to have one
and only  Wiki/Howto Side ...

For Xymonton would be Galen the right person ....

> Or shall I send it directly to the list

 hmm, maybe the quickest solution ...


thanks & cheers,

	martin

On Fri, 27 Mar 2009, Husemann, Harald wrote:

> Hi Martin,
>
> I can of course write a doc about our setup to share my experiences. As I 
> saw, there was a bit of a discussion about the right place for it, so, 
> question to the list:
> Where shall I upload it? Or shall I send it directly to the list, and someone 
> (TJ?) picks it + includes it?
>
> hh
>
> Martin Flemming schrieb:
> >  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
> > > >