Domino comes with a set of default Grafana dashboards. Many of the Domino platform services have corresponding Grafana dashboards. There are also several dashboards for Kubernetes observability.
Retrieve the Grafana password and log in to explore the dashboards.
The Grafana password is the secret from the domino-platform namespace.
Retrieve the password with kubectl:
echo -e "\nyour password is: $(kubectl get secret grafana -n domino-platform -ojsonpath='{.data.admin-password}' | base64 -d)\n"-
Enter the Email or username as
grafana. -
Enter the password you retrieved above.
-
Click Log in.
You’ll find many dashboards available in Grafana. The ones described here are especially useful.
Kuberhealthy
Use the Kuberhealthy dashboard as your single source of truth for all defined synthetic checks for basic Kubernetes cluster functionality deployed as part of Domino.
You can see panels such as the following:
- Kuberhealthy Check Status
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Determines if a synthetic test defined has failed. You can see each test with a result of 1 (succeeded) or 0 (failed) with the time it last ran the check.
- Kubernetes Check History
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Shows a historical view of when the checks failed.
General / Keycloak JVM Dashboard
Keycloak pods are responsible for user authentication and session management. A Java Virtual Machine (JVM) executes the program that performs these responsibilities. The "Keycloak JVM Dashboard" shows the overall status of Keycloak pods, metrics about JVM resource usage, including heap and non-heap memory usage, garbage collection stats, and thread counts. You can use this dashboard to help understand performance or scaling issues related to Domino’s authentication engine.
General / Nucleus Dispatcher JVM Metrics: Current Pod
The nucleus-dispatcher is a Kubernetes pod that has several important responsibilities within the Domino system, including "dispatching" runs to begin execution.
A Java Virtual Machine (JVM) executes the program that performs these responsibilities.
The "Nucleus Dispatcher JVM Metrics: Current Pod" dashboard shows metrics about JVM resource usage, including heap and non-heap memory usage, garbage collection stats, and thread counts.
You can use this dashboard to help understand performance or scaling issues related to Domino’s execution engine.
This dashboard shows the JVM stats for the currently-running nucleus-dispatcher Kubernetes pod.
There are also similar JVM metrics dashboards for other "Nucleus" Kubernetes pods that perform less critical roles, such as nucleus-train and nucleus-workspace-volume-snapshot-cleaner.
General / Nucleus Dispatcher JVM Metrics: All Pods Including Terminated
This dashboard shows the same metrics as the "Nucleus Dispatcher JVM Metrics: Current Pod" dashboard, but for all historical pods that still have metrics in the system. This dashboard is useful for viewing resource usage across pod restarts.
There are also similar historical metrics dashboards for other "Nucleus" Kubernetes pods.