Instance Metrics and Health Checks

Instance metrics

The instance itself won’t be able to tell much about overall system health, but it should emit metrics that can be collected, analyzed, and visualized centrally. This may be as simple as periodically spitting a line of stats into a log file. The stronger our log-scraping tools are, the more attractive this option will be. Within a large organization, this is probably the best choice.

An ever-growing number of systems have outsourced their metrics collection to companies like New Relic and Datadog. In these cases, providers supply plugins to run with different applications and runtime ...