To help control consumption of disk space, OpsCenter provides two ways to limit the
growth of OpsCenter performance data by:
Excluding specified keyspaces and column families from performance data collection
Shortening the time period after which performance data automatically expires
Excluding keyspaces and column families
By default, OpsCenter does not collect performance data for its own keyspace or the Cassandra system keyspace. You can manually add any other keyspaces or column families that you do not want to monitor in the [cassandra_metrics] section of the configuration file.