Tell me where to find the source code I'll give it a try. 
Marcello

> -----Messaggio originale-----
> Da: Stefano Bagnara [mailto:[EMAIL PROTECTED] 
> Inviato: martedì 7 marzo 2006 19.14
> A: James Users List
> Oggetto: Re: Concurrent james instances on the same db repository
> 
> Marcello Marangio wrote:
> > Hi All.
> > I'm trying to understand if the "ordinary" release 2.2.0 of james 
> > supports concurrency on the db mail repository.
> 
> No, locking is handled by the application so the Lock is an 
> in JVM object. If you run 2 different james you can lock the 
> same message with both james.
> 
> > I have to set up a high availability environment with 2 
> james working 
> > in failover on the same repository.
> > I found a reference to james HA.
> 
> James HA has been written to support the concurrency you 
> describe. I never used it.
> 
> > Does anybody use it in a production environment? Is it as 
> reliable as 
> > james 2.2.0?
> 
> It would be probably a good thing to find out differences 
> between james 2.2.0 and the HA release and try to make the 
> locking mechanism "pluggable"  so that James HA could be a 
> simple "plugin" for James.
> 
> Any volunteer?
> 
> Stefano
> 
> 
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