Monitor key Couchbase metrics

Major League Soccer (MLS) has been using Datadog as their exclusive performance monitoring and graphing tool for nearly a year. They love the fact that Datadog's agent is open-source, which allows them to create custom checks and contribute back to the community. MLS Digital developed a new check for Couchbase, a distributed NoSQL database, six months ago based on an existing CouchDB version. Monitoring Couchbase metrics alongside application metrics has been crucial in identifying and resolving performance and availability issues in their products. Key Couchbase metrics to monitor include operations per second, view operations per second, current connections, total objects, resident item ratio, memory headroom, cache miss ratio, disk reads per second, ejections, disk write queue, and out of memory errors.