no org id

[yzhengwei]

I'm used grafana mimir without an authenticating, and it's auto set the tenant ID to the string anonymous, when I want to query some metrics from the query-frontend useing url http://<query-frontend>:8080/api/v1/query, it's returned no org id, I'm changed the url to http://<query-frontend>:8080/anonymous/api/v1/query, then it's returnd 404, which is the right url to query metrics?

[rlex]

AFAIK you still need X-Scope-OrgID header set even with auth disabled and URL should be same for every tenant (without /anonymous/ part)
From mimir-nginx gateway:

  # Ensure that X-Scope-OrgID is always present, default to "anonymous" for backwards compatibility when multi-tenancy was turned off.
  map $http_x_scope_orgid $ensured_x_scope_orgid {
    default $http_x_scope_orgid;
    "" "anonymous";
  }

proxy_set_header X-Scope-OrgID $ensured_x_scope_orgid;

[pracucci]

That's correct.

Multi-tenancy is enabled by default and can be disabled via -auth.multitenancy-enabled=false. If you keep multi-tenancy enabled, then every API request is required to have the X-Scope-OrgID header with the value set to the tenant ID you're authenticating for (anonymous is the default tenant ID used when multi tenancy is disabled).

You can learn more in Grafana Mimir authentication and authorization.