Configuring data collection and expiration 

OpsCenter collects system and table metrics data for each node in a cluster.

OpsCenter creates its own keyspace within a cluster for storing collected metrics. This data can also be stored on a cluster other than the one currently being managed by OpsCenter. Metrics data is collected at regular intervals and stored within a cluster in a keyspace named OpsCenter. The tables containing metric data continue to grow. Configure how long to keep historical metrics. Data expires after configurable time periods.