Monitoring and Best Practices
Couchbase Server has a slick and user-friendly UI, which makes it easy to set up and use, but under the deceptively simple surface lies a whole system of complex and interconnected mechanisms. Luckily, this complex system offers multiple ways to monitor its behavior, along with a huge number of switches and settings to tweak, ranging in effect from subtle to very profound.
You have to monitor Couchbase at the machine level, including system RAM and CPU use, disk I/O, and network throughput for every node, as well as for the cluster as a whole. You also have to monitor what’s going on inside each node, ...