> Maybe another solution would be to simply deactivate caching and use a

> PersistenceManager layer cache for clustering setups. For example by 
> using Hibernate's cache and clustering support and completely 
> deactivate the ItemStateManager's caches. I don't know what this would

> do to performance though...

Don't think I'd advocate that kind of approach either. 

Stefan mentions that the replication of application state is far more
complicated than just synchronising the caches (all of them). I don't
have enough knowledge of the code to disagree but when the development
team is ready to start considering clustering (whenever that may be)
then my vote would be to make the cache (a recourse similar to the PM)
pluggable.

In the meantime I'm off to try and get my head around the rest of the
code ;)

Simon

PS Don't forget its almost Spring time (ioc)....;)

-----Original Message-----
From: Edgar Poce [mailto:[EMAIL PROTECTED] 
Sent: 04 April 2005 18:06
To: [email protected]
Subject: Re: cluster and cache question - Bayesian Filter detected spam

Hi serge

Serge Huber wrote:
> Maybe another solution would be to simply deactivate caching and use a

> PersistenceManager layer cache for clustering setups. For example by 
> using Hibernate's cache and clustering support and completely 
> deactivate the ItemStateManager's caches. I don't know what this would

> do to performance though...

While I agree with most of yours and simon's opinions, I think that
deactivating caching in the statemanagers is not an option. That would
break well defined responsabilities in too many core components.

regards
edgar

This email contains proprietary information, some or all of which may be 
legally privileged. It is for the intended recipient only. If an addressing or 
transmission error has misdirected this email, please notify the author by 
replying to this email. If you are not the intended recipient you may not use, 
disclose, distribute, copy, print or rely on this email. 

Email transmission cannot be guaranteed to be secure or error free, as 
information may be intercepted, corrupted, lost, destroyed, arrive late or 
incomplete or contain viruses. This email and any files attached to it have 
been checked with virus detection software before transmission. You should 
nonetheless carry out your own virus check before opening any attachment. GOSS 
Interactive Ltd accepts no liability for any loss or damage that may be caused 
by software viruses.

GOSS - Ranked 4th in the Deloitte Technology Fast 50 Awards 2004 and 88th in 
the Deloitte Technology Fast 500 EMEA.

Reply via email to