The query auditor is a tool bundled in the Cortex repository, but not included in Docker images – this must be built from source. It’s primarily useful for those developing Cortex, but can be helpful to operators as well during certain scenarios (backend migrations come to mind). How it works The query-audit tool performs a set of queries against two backends that expose the Prometheus read API. This is generally the query-frontend component of two Cortex deployments.
