distributed web applications

In distributed web applications, where data is spread across multiple nodes and servers, ensuring data synchronization and consistency is paramount. Here are some key techniques and strategies that can help achieve this: 1. Distributed Transactions: Distributed transactions enable multiple operations across different nodes to be treated as a single atomic operation. This ensures that either all the operations succeed or none of them do, maintaining consistency in the system. Techniques like two-phase commit (2PC) and transaction logs can be used to implement distributed transactions. 2. Conflict Resolution: In a distributed environment, conflicts can arise when multiple nodes try to update the same piece of data simultaneously. Conflict resolution techniques, such as last-writer-wins (LWW) or vector clocks, can be used to resolve conflicts and determine the correct state of the data. These techniques help ensure that the data remains consistent across all nodes. 3. Data Versioning: Data versioning involves assigning unique version numbers or timestamps to data updates. By tracking and comparing these version numbers, it