Hi Fernando, ----- Original Message ----- From: "Fernando" <[EMAIL PROTECTED]> To: "OJB User List (E-mail)" <[EMAIL PROTECTED]> Sent: Monday, February 10, 2003 6:19 PM Subject: Does OJB supports clustering in an EJB container?
> Hello. > > I would like to know if OJB supports clustering in an EJB container. That > is, I want to use OJB from inside sessions beans running in a clustered > enviro. I want to use OJB cache, and I'm worried about when a session bean > updates the datastore. > I think currently there is no cluster-safe caching implementation. There is a JCS based cache implementation in the code base and on JCS web page they a promise a multi-tiered cache, but I don't know if this stuff is ready to work for you http://jakarta.apache.org/turbine/jcs/RemoteAuxCache.html Another possibility could be a JMS-based cache implementation, but nobody works on such a beast. regards, Armin > The question can be illustrated with this: > > 1. Cluster A runs a query that loads object O1 into cache (outside a > transaction). > 2. Cluster B removes object O1 from the datastore, and commit. > 3. Cluster A runs the same query again. Will this query return object O1 > again? > > Thanks, > Fernando > > --------------------------------------------------------------------- > To unsubscribe, e-mail: [EMAIL PROTECTED] > For additional commands, e-mail: [EMAIL PROTECTED] > > > --------------------------------------------------------------------- To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED]
