Update the project statistics immediatelly

app/workers/project_cache_worker.rb

@@ -26,10 +26,17 @@ class ProjectCacheWorker
   end
   # rubocop: enable CodeReuse/ActiveRecord
 
+  # NOTE: triggering both an immediate update and one in 15 minutes if we
+  # successfully obtain the lease. That way, we only need to wait for the
+  # statistics to become accurate if they were already updated once in the
+  # last 15 minutes.
   def update_statistics(project, statistics = [])
     return if Gitlab::Database.read_only?
     return unless try_obtain_lease_for(project.id, statistics)
 
+    Rails.logger.info("Updating statistics for project #{project.id}")
+
+    project.statistics.refresh!(only: statistics)
     UpdateProjectStatisticsWorker.perform_in(LEASE_TIMEOUT, project.id, statistics)
   end
 

spec/workers/project_cache_worker_spec.rb

@@ -86,6 +86,10 @@ describe ProjectCacheWorker do
       it 'updates the project statistics' do
         stub_exclusive_lease(lease_key, timeout: lease_timeout)
 
+        expect(project.statistics).to receive(:refresh!)
+          .with(only: statistics.map(&:to_sym))
+          .and_call_original
+
         expect(UpdateProjectStatisticsWorker).to receive(:perform_in)
           .with(lease_timeout, project.id, statistics.map(&:to_sym))
           .and_call_original