Re: xindice session replication questions

On Oct 17, 2008, at 11:06 AM, Edward Capriolo wrote:

> Very interesting. If those classes implement serialization

Even if they don't (I don't remember one way or another), it would be  
trivial to implement it.


> they can be used with tomcat session replication?

I'm not sure that I see how *session* replication can be used to  
replicate a *shared* (across multiple users) resource.

Also, consider that database can be modified on different nodes at  
once by different web site visitors. Say, one user will add a document  
and another user will delete some other document. After these changes  
are made, how you are going to synchronize state of these databases?

That's why I suggested building a replication layer on top. Instead of  
trying to replicate complete database (which will be costly if  
database size is anything but trivial), you'd replicate only  
modifications.


> I am also looking into
> http://www.jgroups.org/. My goal is to have some type of database that
> can scale on the fly.

Yes, jgroups can be employed to build communication for the  
replication layer.

Vadim