|Configuring data collection and expiration / Controlling data collection|
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.
For example, to prevent data collection for the keyspace test as well as the column family Keyspace1.Standard1, uncomment and edit the following values in the OpsCenter cluster configuration file (<cluster_specific>.conf):
[cassandra_metrics] ignored_keyspaces = system, OpsCenter, test ignored_column_families = Keyspace1.Standard1