db-derby-user mailing list archives

Site index · List index
Message view « Date » · « Thread »
Top « Date » · « Thread »
From "David Van Couvering" <da...@vancouvering.com>
Subject Re: Derby and replication
Date Thu, 20 Sep 2007 15:59:39 GMT
I think you should take a look at Daffodil.  I think it works across
machines.  I've never used it, but others who have, I thought, used it
across machines.

David

On 9/19/07, John C. Turnbull <ozemale@ozemail.com.au> wrote:
> I am investigating the ins and outs of a system that consists of several
> JVMs running on possibly separate machines all manipulating separate
> instances of Derby that collectively are kept in synch - somehow.  Does
> anyone know of a possible solution to the synchronisation side of things or
> am I dreaming?  I am not sure if HA-JDBC or Daffodil Replicator can handle
> the inter-machine communication issues.
>
> -JCT
>
> > -----Original Message-----
> > From: david.vancouvering@gmail.com
> > [mailto:david.vancouvering@gmail.com] On Behalf Of David Van Couvering
> > Sent: Wednesday, 19 September 2007 03:17
> > To: Derby Discussion
> > Subject: Re: Derby and replication
> >
> > I think the responses you have heard so far talk about replication to
> > provide availability (HA-JDBC, the ongoing Derby effort).
> >
> > What you are talking about is basically using Derby as a reliable
> > front-end cache to a back-end database where the connection can be
> > unavailable from time to time.
> >
> > What this is about is really synchronization, not replication.
> > Synchronization is keeping two sometimes disconnected databases in
> > synch.
> >
> > One product out there that works with Derby is Daffodil Replicator,
> > see http://sourceforge.net/projects/daffodilreplica/.  It's an open
> > source project using the GPL license.
> >
> > David
> >
> > On 9/18/07, ad marginem <admarginem@gmail.com> wrote:
> > > Hello,
> > >
> > > I want to develop a program, using derby as a back-end.
> > >
> > > There will be a POS and a Warehouse module. They will use the same
> > database
> > > scheme, but they cannot use the same database because of reliability
> > (in
> > > case of broken connection the POS must not stop).
> > >
> > > So my question is: how to develop such a reliable workflow?
> > Replication? Or
> > > maybe there are some other options? If replication - how to implement
> > it?
> > > Are there any existing methods to replicate derby database?
> > >
> > > Thank you!
> > >
> > >
> > > --
> > > по краям
>
Mime
View raw message