AOF

AOF, or Append-Only File, is a storage method used by databases and systems to record changes in a continuous, sequential manner. Instead of overwriting existing data, it appends new information at the end of the file, creating a reliable history of all updates. This approach ensures data integrity, facilitates recovery after failures, and allows for efficient replication across servers. Think of it like a diary where each new entry adds to the end, preserving the entire record of activities. AOF is essential for systems that require durability, consistency, and the ability to reconstruct data accurately.