Re: Prevayler vs Terracotta

You can run the bank demo (demo2) included in Prevayler in replicated mode.

Just run MainServer on one machine and MainReplica
[ip-address-of-server] on another (or the same) machine.

It is implemented in Prevayler as a proof-of-concept only, though.
What does that mean? It does not reconnect the socket if the socket
falls, for example.

If anyone is seriously interested, I would love to implement it
production-grade.

See you, Klaus.


On Wed, Nov 11, 2009 at 3:42 PM, Clebert Suconic
<[email protected]> wrote:
> How you guys support transaction over the replicas? Is there any
> documentation about it?
>
> On Wed, Nov 11, 2009 at 11:15 AM, Klaus Wuestefeld
> <[email protected]> wrote:
>> Prevayler does require you to hold all your objects in the JVM heap in
>> RAM. If you cannot do that, as you know, you cannot use Prevayler.
>>
>> A prevalent system can be set up for mirroring (replicas of your
>> system 100% in sync), so you can do fault-tolerance and load
>> balancing.
>>
>> Each replicating machine must be capable of keeping all your objects in RAM.
>>
>> See you, Klaus.
>>
>>
>>
>> On Wed, Nov 11, 2009 at 12:22 PM, Sergey Didenko
>> <[email protected]> wrote:
>>> Hi,
>>>
>>> A question for guys familiar with Terracotta:
>>>
>>> Under what conditions Prevayler can suit needs better than Terracotta
>>> with its DSO?
>>>
>>> I have found this reply from a Terracotta engineer so far -
>>> http://forums.terracotta.org/forums/posts/list/89.page
>>>
>>> ------------------------------------------------------------------------------
>>> Let Crystal Reports handle the reporting - Free Crystal Reports 2008 30-Day
>>> trial. Simplify your report design, integration and deployment - and focus on
>>> what you do best, core application coding. Discover what's new with
>>> Crystal Reports now.  http://p.sf.net/sfu/bobj-july
>>> _______________________________________________
>>> To unsubscribe go to the end of this page: http://lists.sourceforge.net/lists/listinfo/prevayler-discussion
>>> _______________________________________________
>>> "Databases in Memoriam" -- http://www.prevayler.org
>>>
>>
>> ------------------------------------------------------------------------------
>> Let Crystal Reports handle the reporting - Free Crystal Reports 2008 30-Day
>> trial. Simplify your report design, integration and deployment - and focus on
>> what you do best, core application coding. Discover what's new with
>> Crystal Reports now.  http://p.sf.net/sfu/bobj-july
>> _______________________________________________
>> To unsubscribe go to the end of this page: http://lists.sourceforge.net/lists/listinfo/prevayler-discussion
>> _______________________________________________
>> "Databases in Memoriam" -- http://www.prevayler.org
>>
>
>
>
> --
> Clebert Suconic
> http://www.jboss.org/developers/#ClebertSuconic
> http://clebertsuconic.blogspot.com
>
> ------------------------------------------------------------------------------
> Let Crystal Reports handle the reporting - Free Crystal Reports 2008 30-Day
> trial. Simplify your report design, integration and deployment - and focus on
> what you do best, core application coding. Discover what's new with
> Crystal Reports now.  http://p.sf.net/sfu/bobj-july
> _______________________________________________
> To unsubscribe go to the end of this page: http://lists.sourceforge.net/lists/listinfo/prevayler-discussion
> _______________________________________________
> "Databases in Memoriam" -- http://www.prevayler.org
>

------------------------------------------------------------------------------
Let Crystal Reports handle the reporting - Free Crystal Reports 2008 30-Day 
trial. Simplify your report design, integration and deployment - and focus on 
what you do best, core application coding. Discover what's new with
Crystal Reports now.  http://p.sf.net/sfu/bobj-july
_______________________________________________
To unsubscribe go to the end of this page: http://lists.sourceforge.net/lists/listinfo/prevayler-discussion
_______________________________________________
"Databases in Memoriam" -- http://www.prevayler.org