Mailing-List: contact user-help@cayenne.apache.org; run by ezmlm
Precedence: bulk
Reply-To: user@cayenne.apache.org
Received-SPF: pass (athena.apache.org: local policy)
From: Pirola Davide <davide.pirola@matrix.it>
To: "user@cayenne.apache.org" <user@cayenne.apache.org>
Date: Wed, 24 Dec 2008 15:44:33 +0100
Subject: RE: Cayenne with JGroups replication
Thread-Topic: Cayenne with JGroups replication
Thread-Index: AcllL3ANuyNrvtyVQiurq3LbOgX5HwAopaXA
Message-ID: <C407D084D8273047A6716A983E16900463EAD00659@EVS2007.vtin.it>
References: <C407D084D8273047A6716A983E16900463EAD00565@EVS2007.vtin.it>
 <01B7A43F-1F49-4EDF-99A2-45D611C38766@pvv.ntnu.no>
In-Reply-To: <01B7A43F-1F49-4EDF-99A2-45D611C38766@pvv.ntnu.no>
Accept-Language: it-IT
Content-Language: en-US
acceptlanguage: it-IT
Content-Type: text/plain; charset="iso-8859-1"
Content-Transfer-Encoding: quoted-printable
MIME-Version: 1.0

Hi Tore,
thanks for your answer.
Ha-jdbc seems to be a great product.
It can be used in conjunction with Cayenne?
I prefer to demand to Cayenne all the stuffs involved in the connection to =
the database (es connection pooling), and use its API to read and write.
Do you think that it is possible?

Thanks
Davide


-----Original Message-----
From: Tore Halset [mailto:halset@pvv.ntnu.no]
Sent: marted=EC 23 dicembre 2008 19.50
To: user@cayenne.apache.org
Subject: Re: Cayenne with JGroups replication

Hello.

Cayenne uses jgroups to synchronize the caches. Use ha-jdbc or sequoia
to sync the databases.

  - Tore.

On Dec 23, 2008, at 16:39, Pirola Davide <davide.pirola@matrix.it>
wrote:

> Hi,
> i'm developing a web application that need to store some data.
> For some reasons i can't have a database installed on a cluster, so
> I inted to use Apache Derby (Java DB embedded in the JDK 6.0).
> The main issue is due to the fact that i have 2 front end server so
> I need to synchronize the data stored in the 2 instance of the Derby
> database.
> My idea is to use JGroups to permit to the servers to communicate in
> multicast way and manually realize the synchronization.
> Whit a great surprise I found this article in the Cayenne manual:
>
> http://cayenne.apache.org/doc12/configuring-caching-behavior.html
>
> so cayenne already perform this kind of job?
> Where I can find some documentation or example about it?
> This solution can be used in production with a high traffic web site?
>
> Thanks
> Davide
>
> ________________________________
> Le informazioni contenute nella presente e-mail potrebbero essere
> confidenziali e sono dirette unicamente ai destinatari sopra
> indicati. In caso di ricezione da parte di persona diversa ? vietato
> qualunque tipo di distribuzione o copia. Chi riceva questo messaggio
> per errore ? pregato di inoltrarlo al mittente e di distruggere
> questa e-mail.
>
> This e-mail may contain confidential information and is intended
> only for the use of the addressee(s) named above. If the reader of
> this message is not the intended recipient of this message, please
> note that distribution or copying of this communication is
> forbidden. Anyone who receives this communication in error should
> return it immediately to the sender and destroy the message.

Le informazioni contenute nella presente e-mail potrebbero essere confidenz=
iali e sono dirette unicamente ai destinatari sopra indicati. In caso di ri=
cezione da parte di persona diversa =E8 vietato qualunque tipo di distribuz=
ione o copia. Chi riceva questo messaggio per errore =E8 pregato di inoltra=
rlo al mittente e di distruggere questa e-mail.

This e-mail may contain confidential information and is intended only for t=
he use of the addressee(s) named above. If the reader of this message is no=
t the intended recipient of this message, please note that distribution or =
copying of this communication is forbidden. Anyone who receives this commun=
ication in error should return it immediately to the sender and destroy the=
 message.