Cluster Health Monitor

When a threat defense is the control node of a cluster, the management center collects various metrics periodically from the device metric data collector. The cluster health monitor is comprised of the following components:

  • Overview dashboard―Displays information about the cluster topology, cluster statistics, and metric charts:

    • The topology section displays a cluster's live status, the health of individual threat defense, threat defense node type (control node or data node), and the status of the device. The status of the device could be Disabled (when the device leaves the cluster), Added out of box (in a public cloud cluster, the additional nodes that do not belong to the management center), or Normal (ideal state of the node).

    • The cluster statistics section displays current metrics of the cluster with respect to the CPU usage, memory usage, input rate, output rate, active connections, and NAT translations.

      Note

      The CPU and memory metrics display the individual average of the data plane and snort usage.

    • The metric charts, namely, CPU Usage, Memory Usage, Throughput, and Connections, diagrammatically display the statistics of the cluster over the specified time period.

  • Load Distribution dashboard―Displays load distribution across the cluster nodes in two widgets:

    • The Distribution widget displays the average packet and connection distribution over the time range across the cluster nodes. This data depicts how the load is being distributed by the nodes. Using this widget, you can easily identify any abnormalities in the load distribution and rectify it.

    • The Node Statistics widget displays the node level metrics in table format. It displays metric data on CPU usage, memory usage, input rate, output rate, active connections, and NAT translations across the cluster nodes. This table view enables you to correlate data and easily identify any discrepancies.

  • Member Performance dashboard―Displays current metrics of the cluster nodes. You can use the selector to filter the nodes and view the details of a specific node. The metric data include CPU usage, memory usage, input rate, output rate, active connections, and NAT translations.

  • CCL dashboard―Displays, graphically, the cluster control link data namely, the input, and output rate.

  • Troubleshooting and Links ― Provides convenient links to frequently used troubleshooting topics and procedures.

  • Time range―An adjustable time window to constrain the information that appears in the various cluster metrics dashboards and widgets.

  • Custom Dashboard―Displays data on both cluster-wide metrics and node-level metrics. However, node selection only applies for the threat defense metrics and not for the entire cluster to which the node belongs.