Freaks City

When multiple clients concurrently modify shared data in Redis—such as decrementing product inventory during flash sales—race conditions can lead to incorrect results. Without proper synchronization, two clients might read the same initial value, both decrement it locally, and write back identical results, causing lost updates. While locking me ...

MongoDB Atomic Operations MongoDB does not support multi-document ACID transactions. Therefore, you must design your application logic to handle data consistency without relying on the database for cross-document integrity. However, MongoDB provides a comprehensive set of atomic operations for single-document modifications. An atomic operation ...