What is "normal" Opscenter space usage?
On my cluster (5 nodes) the directory /var/lib/cassandra/data/OpsCenter/ seems unjustifiably large. On all the nodes in the cluster, there is between 1 and 5 GB of data in this folder, after about a couple of weeks of operation. The culprits seem to be metrics-g-*-Data.db files taking up most of the space.
Is this normal behaviour? At this rate, space usage is unsustainable, we need to constantly add storage to our cluster nodes.
Is this a known issue, or do I have a problem with my installation?