Zookeeper vs Redis for Distributed Locks

What are the main differences between using Zookeeper and Redis for distributed locks?

Zookeeper is designed for distributed coordination and provides strong consistency, while Redis is faster and simpler but may not guarantee strong consistency.

Can you explain how Zookeeper handles locks?

Zookeeper uses ephemeral nodes to create locks. When a client creates an ephemeral node, it will be deleted if the client disconnects, ensuring that locks are released.

What about Redis? How does it implement locking?

Redis uses the SETNX command to create a lock. If the key doesn't exist, it sets it and returns success; otherwise, it indicates the lock is already held.

Which one would you recommend for a high-traffic application?

For high-traffic applications, Redis might be preferable due to its speed, but consider Zookeeper if you need strong consistency and coordination.