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Vicky
Vicky

Reputation: 5540

Distributed Transaction across two EJB server

I was reading an article about 2-PC and distributed transaction in EJB server. It says:

A 2-PC allows transactions to be managed across different servers and resources (e.g., databases and JMS providers). The details of a 2-PC are beyond the scope of this book, but a system that supports it will not require any extra operations by an EJB or application developer.

In addition to managing transactions in its own environment, an EJB server can coordinate with other transactional systems. If, for example, an EJB actually came from a different application server than the BankEJB, the two application servers would cooperate to manage the transaction as one unit-of-work.

If I've two different Enterprize Apps (A and B) running on two app-server that are hosted in two different machines. The application servers that I'm using will be WebLogic and Oracle AS. Is it possible that 2 PC/distributed transaction will co-ordinate the transaction across the two servers (even, if they are from different vendors)? Let me know, If my question is not clear.

Upvotes: 1

Views: 1889

Answers (1)

Brett Kail
Brett Kail

Reputation: 33936

In theory, the EJB spec requires EJB containers to either implement transaction interoperability using OTS or to throw an exception.

In practice, it appears that WebLogic does implement transaction interoperability:

http://download.oracle.com/docs/cd/E12840_01/wls/docs103/jta/trxsvc.html#wp1056344

...but OC4J does not:

http://download.oracle.com/docs/cd/B12314_01/web.904/b10326/interop.htm

Upvotes: 1

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