Distributed database transactions

Question

I am trying to write to 3 different databases: MySQL, Oracle and MongoDB. The requirement is that all 3 databases should be in a consistent state. For eg if the write to MySQL and Oracle succeeded, and mongo failed(eg network failure), then there should be a way to write the failed record back to mongo to keep all 3 records consistent. What's the best way to do this? Should I implement a queue to store failed records and have some background process to read records from the queue and try to write it again to the failed database?

Answer 1

Your best bet would probably be the Java Transaction API (JTA) . I have not personally used it but it seems to be the Java "industry standard" for distributed transactions.