🆚 CouchDB vs. Memcached

Apache CouchDB is an open-source, document-oriented NoSQL database that stores data as JSON documents and exposes a RESTful HTTP API for application access.

It features multi-version concurrency control, masterless replication with bi-directional sync, automatic conflict detection, map-reduce views for indexing and queries, pluggable storage engines, and supports clustering with horizontal scaling across multiple nodes.

Memcached is an open-source event-based key-value store that keeps data in memory to deliver very low latency access and high throughput.

It can handle over 200,000 operations per second on fast hardware, uses multi-threading to leverage multiple CPU cores, and applies Least Recently Used cache eviction policy when it runs out of memory.

Popularity

Determined by the number of sites using each technology.

• 🥈 Second most popular in the United States in the Databases category.
• 🥈 Second most popular in Australia in the Databases category.
• 🥈 Second most popular in Canada in the Databases category.
• 🥈 Second most popular in New Zealand in the Databases category.
• 🥈 Second most popular in Mexico in the Databases category.

Top sites

Top-ranked sites that use these technologies.

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• CouchDB technology profile
• Apache Software Foundation company profile

• Memcached technology profile