As one of the most popular open-source Kubernetes monitoring solutions, Prometheus leverages a multidimensional data model of time-stamped metric data and labels. The platform uses a pull-based architecture to collect metrics from various targets. It stores the metrics in a time-series database and provides the powerful PromQL query language for efficient analysis and data visualization.
Despite its powerful capabilities, there are several key considerations that determine the observability efficiency of a Kubernetes cluster through Prometheus. These considerations include: