XA protocol

The XA Protocol is a standard used in computer systems to manage transactions across multiple resources, like databases or message queues. It ensures that these transactions are completed successfully and consistently, even if some resources fail during the process. The protocol outlines a two-phase approach: first, all involved resources prepare to commit the transaction, and then they either all commit or all roll back changes if there's a problem. This way, XA helps maintain data integrity and coordination across different systems, making sure everything aligns correctly in complex operations.