Two Phase commit-How to test

Question

We are trying to implement two phase commit on a Java/Jboss/Apache environment.

However we have difficulty understanding how we can test that it actually works? are there any gui tools that can help us test it?

Thanks

Answer 1

I can think of couple of scenarios

• unplug once of the resources participating in a 2PC. my favorite
• let one of the db operations fail with integrity constraint

The transaction should rollback.

Answer 2

I'd consider adding some hooks to your application to force a failure at each stage one by one; so you can check the expected outcome.

Or use unit testing if thats easier.