Can you explain how fault tolerance works in distributed systems?
Sure! Fault tolerance in distributed systems allows the system to continue operating even when some components fail. It achieves this through redundancy, replication, and error detection.
What are some common techniques used for achieving fault tolerance?
Common techniques include data replication, consensus algorithms like Paxos or Raft, and checkpointing to save system states.
How does data replication help in fault tolerance?
Data replication ensures that multiple copies of data exist across different nodes. If one node fails, others can provide the necessary data, maintaining system availability.
Can you give an example of a distributed system that uses fault tolerance?
Certainly! Apache Cassandra is a distributed database that uses fault tolerance through data replication across multiple nodes to ensure high availability.
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