Description: Distributed transactions are transactions that involve multiple databases or network resources. These transactions are fundamental in distributed systems, where data and resources are spread across different physical locations but must be managed coherently and securely. The main characteristic of distributed transactions is that they guarantee atomicity, consistency, isolation, and durability (ACID) across all involved nodes. This means that even though a transaction is executed across several systems, it must either complete in its entirety or not occur at all, thus ensuring data integrity. Additionally, distributed transactions must handle issues such as network latency, node failures, and data synchronization, making them a significant technical challenge. Implementing these transactions requires specific protocols, such as the two-phase commit (2PC) protocol, which helps coordinate the completion of transactions across different systems. In summary, distributed transactions are essential for the efficient and secure operation of applications that require access to data in multiple locations, allowing organizations to operate more flexibly and scalably in an increasingly interconnected environment.
