Re: Nortel Alteon and persistence

Alain,

If using hash metric, if a real server goes down or another is added then
the hash table is recalculated and you can lose persistence, this is not the
case with phash (persistent hash) or with minmiss

Regards,

Ken T.

On Sun, Jul 12, 2009 at 7:37 AM, MaximK <[email protected]> wrote:

>
> AFAIK hash function value should not be affected by introducing new server
> to
> the group,so you shouldn't see any disconnection of existing clients.
> However if one server goes down, the hash will be recalculated.
>
>
>
> Regards,
> Max
>
>
>
> AlainB wrote:
> >
> > Hi,
> >
> > One question about the persistence metric (minmisses, hash or phash)
> using
> > one Alteon : it's OK, those metrics can stick one client to every time
> the
> > same server. And, if one real server is down, the Alteon can connect
> > another server to the client session.
> > But what is the behavior of the Alteon if the faulty server is back again
> > ? Or if the administrator adds another server to the group ? How is
> > managed this kind of event ? Are there any disconnection of existing
> > sessions ?
> > I can not find any documentation about this subjet. This is why I would
> > appreciate any help relating this post.
> >
> > Regards.
> >
> > Alain Bourcier
> >
> >
>
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