Cluster overview
This is the page you see when you open the admin UI. The cluster overview provides a high-level overview of the CockroachDB cluster. Figure 8.4 is a screenshot that shows the cluster overview for a cluster with three nodes. Some of the links on the side panel don't show up if there is no data. For example, you might not see Sessions, Transactions, and Statements until a session has been established with the CockroachDB cluster and you execute some queries.
Figure 8.4 – UI for the cluster overview
You can find the following set of information in the cluster's Overview tab:
- Capacity Usage: This is the total disk space used by all the nodes in the CockroachDB cluster. It classifies the usage further into USED and USABLE. USED indicates the current disk space by all the nodes, and USABLE is the maximum capacity that can eventually be used by all the nodes in the cluster. You can set the maximum capacity for a given node...
