We are using hibernate in our project along with struts1.1 and is deployed in JBOSS3.2.5 AppServer.

My project has two applications deployed in the jboss which connect to the same database. The two deployed application communicate with each other each having its own SessionFactory . My problem is the modifications made by one application was not visible to the other. The database instance of the second application is not getting refreshed and has the same state as when it is deployed. This situation is when I was using InnoDB storage engine Of MySql.

Using MyIsam storage engine of MySQL solves the problem but it doesnt support Transactions.

Is this the problem with MySql or Hibernate? My project worked fine when I used PostGresql. Also please give me information about how ?Hibernate works with Multiple SessionFactory.

Please help me in this.

You have to learn a lot about Transaction Isolation (I hope you use transaction management through either CMT or the Hibernate transaction API - see http://www.hibernate.org/245.html) and cache management - nothing that can be answered quickly here ... read up and experiment ...