Merge branch 'sh-guard-against-nil-sidekiq-metrics-server' into 'master'

Guard against nil Sidekiq metrics server Closes #41351 See merge request gitlab-org/gitlab-ce!17254

Merge branch 'sh-guard-against-nil-sidekiq-metrics-server' into 'master'
Guard against nil Sidekiq metrics server Closes #41351 See merge request gitlab-org/gitlab-ce!17254
1df01bb7 · Robert Speicher · 4bd30414 · 3b3615f0 · 1df01bb7
--- a/lib/gitlab/metrics/sidekiq_metrics_exporter.rb
+++ b/lib/gitlab/metrics/sidekiq_metrics_exporter.rb
@@ -23,7 +23,7 @@ def start_working
      end

      def stop_working
-        server.shutdown
+        server.shutdown if server
        @server = nil
      end