Tag: data persistence
-
Caching : Write Through Strategy
The Write-Through Strategy is a caching technique used to ensure consistency between the cache and the primary data source. It is widely used in systems where data integrity and durability are critical, such as databases, distributed systems, and file storage. What is Write-Through Caching? In the Write-Through approach, every write operation is performed simultaneously on…
-
Caching : Write Behind Strategy
The Write-Behind Strategy (also known as Write-Back) is a caching technique used to optimize write performance by deferring updates to the primary data source. This strategy is particularly effective in write-heavy systems where immediate consistency is not a strict requirement. What is Write-Behind Caching? In the Write-Behind Strategy, data is first written to the cache,…
-
Durability : ACID Complaince
Durability in ACID: The Immutable Guarantee of Data Persistence In database systems, the ACID model—Atomicity, Consistency, Isolation, and Durability—defines the fundamental principles for reliable transaction management. Among these, durability ensures that once a transaction has been successfully committed, its changes are permanently recorded in the database, even in the face of system crashes, power outages,…