High availability virtual ip

[Maxim Veksler]

On Tue, Jun 23, 2009 at 9:01 AM, Itay Donenhirsch <itay at bazoo.org> wrote:
>
> Hi Folks,
>
> I would recommend not using Linux-HA for any means. I had very bitter
> experience with it. It is implemented in a very complicated and hard
> to debug and configure. It's also very poorly tested. I first didn't
> believe it myself and thought I was doing something wrong, but after
> some email exchanges with its developer it became apparent that it
> fails some very basic scenarios (like switch power-down for instance).
> Moreover, the linux-ha people themselves will confuse you with which
> version to use (2.99/2.1.4, heartbeat or pacemaker, etc).
>
> If you'd like more detailed explanation, or had different experience,
> you are more than welcome to email me.
>

Heartbeat has 2 faces, It can work great or it can fail bitterly.
It has a very steep learning curse before something useful begins to happen.

cibadmin -Q, crm_attribute are your friends.

I agree with Itay, from our experience it is indeed buggy but working.


Maxim.

> Itay
>
> On Tue, Jun 16, 2009 at 9:55 PM, Oleg Goldshmidt<pub at goldshmidt.org> wrote:
> > Marc Volovic <marcvolovic at me.com> writes:
> >
> >> Hi
> >>
> >> First, the problem is not an IP, but the mac-ip mapping and ARP
> >> caching strategies.
> >>
> >> Second, don't use ping.
> >>
> >> Third, do use project 'heartbeat' and 'fake'. They provide what you
> >> need.
> >
> > Heartbeat is a component of Linux-HA, which is why I pointed to the
> > latter ;-)
> >
> > http://www.linux-ha.org/Heartbeat
> >
> > --
> > Oleg Goldshmidt | pub at goldshmidt.org
> >
> > _______________________________________________
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> > Linux-il at cs.huji.ac.il
> > http://mailman.cs.huji.ac.il/mailman/listinfo/linux-il
> >
>
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--
Cheers,
Maxim Veksler

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