[Spread-users] Re: how spread persist messages

Jörg F. Wittenberger Joerg.Wittenberger at softeyes.net
Mon Mar 17 03:59:25 EDT 2008

> > I am looking to build a message relay system using spread.  One of the
> > requirement is being able to replay messages in order.  One way is to have a
> > listener subscribe to the group and persist messages on disc.  Later on, if
> > replay is needed, then a spread client can read the message from the disc
> > and resent.  The problem is I can't guarantee the listener will always
> > alive.  Does spread internally persist messages?  I.e. if a client sends a
> > message to the group and there is no subscribed listener, will spread simply
> > discard the message?
> >
> > Any other open source projects, except JMS, that will be better for that
> > kind of relay/replay system?
> >
> > thanks,
> >
> >
> Why not implement multiple listeners? And have them both backup each
> other you can see when other members join/leave groups so it should be
> fairly easy to setup some kind of fail over scenerio where you can
> keep the messages persisted using multiple listeners

If you where to do that, you could as well just use Askemos

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