Important: This documentation is about an older version. It's relevant only to the release noted, many of the features and functions have been updated or replaced. Please view the current version.
Storing exemplars in Grafana Mimir
You can enable exemplar storage in Grafana Mimir and view the resulting data in Grafana. While exemplars can be enabled for all tenants at once or for only specific tenants, we recommend enabling and enforcing limits for exemplars for only specific tenants.
Enable exemplars globally
In the Grafana Mimir configuration file, set the
limits.max_global_exemplars_per_uservalue. Start with a relatively low number (100,000) and adjust it if needed.
A partial Grafana Mimir configuration file with
max_global_exemplars_per_userset globally looks as follows:yaml
limits: max_global_exemplars_per_user: 100000
Save and deploy the configuration file.
Perform a rolling update of Grafana Mimir components.
Enable exemplars for a specific tenant
Ensure Grafana Mimir uses a runtime configuration file by verifying that the flag
-runtime-config.fileis set to a non-null value. For more information about supported runtime configuration, refer to Runtime configuration file
In the runtime configuration file, set the
overrides.<TENANT>.max_global_exemplars_per_uservalue. Start with a relatively low number (100,000) and adjust it if needed.
A partial runtime configuration file with
max_global_exemplars_per_userset for a tenant called “tenant-a” would look as follows:yaml
overrides: "tenant-a": max_global_exemplars_per_user: 100000
Save and deploy the runtime configuration file.
-runtime-config.reload-period has elapsed, components reload the runtime configuration file and use the updated configuration.