Why can't I see the menu option to access the dashboard?
If you don't have the GKE option in the Resource menu, you might not have any GKE clusters using Cloud Operations for GKE. Similarly, if GKE Clusters isn't listed, then you might not any GKE clusters using Legacy Logging and Monitoring.
Why can't I see any Kubernetes resources in my dashboard?
If you don't see any Kubernetes resources in your Cloud Operations for GKE dashboard, then check the following:
Is the correct Google Cloud project selected at the top of the page?
If not, use the drop-down list in the menu bar to select a project. You must select the project whose data you want to see.
Does your project have any activity?
If you just created your cluster, wait a few minutes for it to populate with data. See Installing monitoring and logging support for details.
Is the time range too narrow?
You can use the Time menu in the dashboard toolbar to select other time ranges or define a Custom range.
Do you have the proper permissions to view the dashboard?
If you see either of the following permission-denied error messages when viewing a service's deployment details or a Google Cloud project's metrics, you need to update your Identity and Access Management role to include roles/monitoring.viewer or roles/viewer:
You do not have sufficient permissions to view this page
You don't have permissions to perform the action on the selected resources
For more details, go to Predefined roles.
Does the service account for your clusters and nodes have permission to write data into Monitoring and Logging?
If you see high error rates on your API dashboard, then your service account might be missing the following roles:
roles/logging.logWriter: In the Google Cloud Console, this role is named Logs Writer. For more information on Logging roles, see the Logging access control guide.
roles/monitoring.metricWriter: In the Google Cloud Console, this role is named Monitoring Metric Writer. This role permits a service account to write metric data to a Workspace. For more information on Monitoring roles, see the Monitoring access control guide.
roles/stackdriver.resourceMetadata.writer: In the Google Cloud Console, this role is named Stackdriver Resource Metadata Writer. This role permits write-only access to resource metadata, and it provides exactly the permissions needed by agents to send metadata. For more information on Monitoring roles, see the Monitoring access control guide.
Why don't I see all of my logs?
Is your agent overloaded and dropping logs?
One possible reason you're not seeing all of your logs is that the node's log volume is overloading the agent. The default Logging agent configuration in GKE is tuned for the rate of 100 kiB/s per node, and the agent might start dropping logs if the volume exceeds that limit.
To detect if you might be hitting this limit, look for any of the following indicators:
kubernetes.io/container/cpu/core_usage_timemetric with the filter
container_name=fluentd-gcpto see if the CPU usage of the Logging agent is near or at 100%.
logging.googleapis.com/byte_countmetric grouped by
metadata.system_labels.node_nameto see if any node reaches 100 kiB/s.
If you see any of these conditions, you can reduce the log volume of your nodes by adding more nodes to the cluster. If all of the log volume comes from a single pod, then you would need to reduce the volume from that pod.
If you want to change the Logging agent tuning parameters, review the Customizing Cloud Logging logs for GKE with Fluentd guide for deploying a custom Logging agent configuration.