RE: [OT] Clustering

2004-08-27 Thread Ivan Vasquez
I assume you ask about an Oracle RAC database. In that case, the mode is "kind-of" ACTIVE/ACTIVE: What you get is a single database mounted by as many instances as cluster nodes you have configured. So every time your application establishes a db connection, it may be served by either cluster nod

Re: [OT] Clustering Application Scope Objects

2004-04-10 Thread Curtis Taylor
Hi Mike, This is an interesting question. Using the PlugIn interface to store "semi-static" data in the app context is a commonly accepted pattern (we use it in the project I'm working on now). However, there's no mechanism currently available in Struts to allow for data model change event noti

Re: [OT] Clustering Application Scope Objects

2004-04-10 Thread Matt Sgarlata
Hi Mike, Your JMS approach sounds fairly sophisticated; could take a while to implement ;-) Hibernate provides some out-of-the-box cacheing implementations, some of which take on this problem. I think you'll find this portion of their user guide fairly relevant: http://www.hibernate.org/hib_

Re: [OT] Clustering Application Scope Objects

2004-04-10 Thread Mike Duffy
Thanks Christian, Let me give you a specific example of what I am trying to do. I have several different sets of label/value pairs that are stored in database tables. These label/value pairs make up the select options and other interface options for web pages in the application. The options d

Re: [OT] Clustering Application Scope Objects

2004-04-10 Thread Christian Bollmeyer
On Saturday 10 April 2004 21:48, Mike Duffy wrote: Hi, > I've read documentation for The Tomcat 5 Servlet/JSP Container: > Clustering/Session Replication HOW-TO > http://jakarta.apache.org/tomcat/tomcat-5.0-doc/cluster-howto.html > > I understand clustering for individual user sessions. Are ther