Hi All ,
I have a question /query regarding using the hibernate in th scenario described below.
We will be running our application behind a load ablancer, so 2 differnet JVM's would be running ,
and our application that is being developed using the hibernate will sit on both of these JVM's .
and the application would be using the same database.

So the query we have is since we have 2 differnet JVM's so will this be in any case become unstable
or the data would be inconsistent if the 2 users using the differnt JVM's try to access the same data in the database?

Thanks
Jyoti

You have to worry about stale data in that situation, yes. But it won't cause any data corruption, just potential data loss. If JVM A loads object X, JVM B loads object X, JVM A edits and saves object X, JVM B can still save object X, undoing JVM A's changes. It's the sort of thing that users just have to live with in multi-user environments.

Hi All,,

I would like to reframe the same question once again for the better understanding.

1JVM A loads object X
2.JVM B loads object X
3.JVM B changes and saves object X
4.JVM A receives a request to load object X. Is there any chance that stale data will be loaded by JVM A since the hibernate engine thinks that Object X is not dirty and does not go to the DB to retrieve it (returns from its cache)?


Jyoti

Yes, you have to worry about that. You can use session.refresh(), session.evict() or session.clear() any time you're concerned about finding stale data.