How does failover work in distributed systems?

Can you explain how failover works in distributed systems?

Sure! Failover in distributed systems is a process that ensures system reliability by switching to a standby system when the primary system fails.

What are some common failover strategies?

Common strategies include active-passive, active-active, and load balancing, each with its own advantages and use cases.

How does the system detect a failure?

Failure detection can be done through heartbeat signals, monitoring tools, or by checking the responsiveness of services.

What happens during a failover?

During a failover, the system reroutes requests to the standby system, ensuring minimal disruption and maintaining service availability.

Are there any challenges with implementing failover?

Yes, challenges include ensuring data consistency, managing state, and the complexity of configuration and testing.