Repository/wiki verification errors are logged out to the `geo.log`, but they can not be queried through the API. We can currently query for the sync failures with the `GET /geo_nodes/current/failures` endpoint, and it returns the following properties for secondary nodes. ``` expose :project_id expose :last_repository_synced_at expose :last_repository_successful_sync_at expose :last_wiki_synced_at expose :last_wiki_successful_sync_at expose :repository_retry_count expose :wiki_retry_count expose :last_repository_sync_failure expose :last_wiki_sync_failure ``` Nothing is returned on the primary, as these attributes only have meaning on the secondary. However, verification errors can happen on both the primary and the secondary. We either need to use the same `GET /geo_nodes/current/failures` endpoint and remove the unused attributes (or just leave them nulled out, which might cause confusion), or we need a new endpoint such as `GET /geo_nodes/current/verification_failures` Related to https://gitlab.com/gitlab-org/gitlab-ee/issues/5519 - [ ] add tests into `qa/qa/specs/features/ee/api/geo_nodes_spec.rb`