Ha-jdbc looks like a jdbc driver from the cayenne side. It should work fine, but please report back.

 - Tore.

On Dec 24, 2008, at 15:44, Pirola Davide <[email protected]> wrote:

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:[email protected]]
Sent: martedì 23 dicembre 2008 19.50
To: [email protected]
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 <[email protected]>
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

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