Replication
Learn about replication as a key method to improve availability in distributed systems. Understand how multiple data copies across nodes increase fault tolerance and the trade-offs between pessimistic and optimistic replication strategies. This lesson helps you grasp the challenges of maintaining data consistency and the impact replication has on system design.
We'll cover the following...
Partitioning can improve the scalability and performance of a system by distributing data and request load to multiple nodes.
Another dimension that benefits from using a distributed system is known as availability.
Availability
Availability refers to the ability of the system to remain functional despite failures in parts of it.
Mechanism to achieve availability
The technique we use to achieve availability is replication.
Replication
Replication is the main technique used ...