Log when cancellation was requested

MaxPower/HostedServices/ExporterService.cs

@@ -24,12 +24,18 @@ protected override async Task ExecuteAsync(CancellationToken cancellationToken)
             Logger.LogInformation("Entering sleep state for {pollinterval} seconds.", MaxSettings.PollIntervalSeconds);
             await Task.Delay(TimeSpan.FromSeconds(MaxSettings.PollIntervalSeconds), cancellationToken);
         }
+
+        if (cancellationToken.IsCancellationRequested)
+            Logger.LogInformation("Cancellation requested, leaving loop ...");
     }
 
     private async Task ProcessInverter(InverterConfiguration inverter, CancellationToken cancellationToken)
     {
         if (cancellationToken.IsCancellationRequested)
+        {
+            Logger.LogInformation("Cancellation requested, skipping inverter {inverterId} ...", inverter.Id);
             return;
+        }
 
         // add an additional (generous) timeout to prevent the system from hanging if the socket conection hangs.
         // seems to happen sometimes after some hours of working perfectly ...
@@ -68,4 +74,4 @@ private async Task ProcessInverter(InverterConfiguration inverter, CancellationT
             _energyTotal.WithLabels(labels).Set(data?.EnergyTotal ?? 0);
         }
     }
-}
+}