Stop consumer on deactivation.

backend/src/Squidex.Infrastructure/EventSourcing/Grains/BatchSubscriber.cs

@@ -45,7 +45,7 @@ namespace Squidex.Infrastructure.EventSourcing.Grains
             Func<IEventSubscriber, IEventSubscription> factory,
             TaskScheduler scheduler)
         {
-            var batchSize = Math.Max(1, eventConsumer!.BatchSize);
+            var batchSize = Math.Max(1, eventConsumer.BatchSize);
             var batchDelay = Math.Max(100, eventConsumer.BatchDelay);
 
             var parse = new TransformBlock<Job, Job>(job =>
@@ -132,7 +132,7 @@ namespace Squidex.Infrastructure.EventSourcing.Grains
 
             buffer.LinkTo(handle, new DataflowLinkOptions
             {
-                PropagateCompletion = true
+                PropagateCompletion = true,
             });
 
             pipelineStart = parse;
@@ -189,6 +189,7 @@ namespace Squidex.Infrastructure.EventSourcing.Grains
             var job = new Job
             {
                 Sender = subscription,
+                StoredEvent = null,
                 Exception = exception
             };
 

backend/src/Squidex.Infrastructure/EventSourcing/Grains/EventConsumerGrain.cs

@@ -11,6 +11,7 @@ using System.Runtime.CompilerServices;
 using System.Threading;
 using System.Threading.Tasks;
 using Squidex.Infrastructure.Orleans;
+using Squidex.Infrastructure.Tasks;
 using Squidex.Log;
 
 namespace Squidex.Infrastructure.EventSourcing.Grains
@@ -63,6 +64,13 @@ namespace Squidex.Infrastructure.EventSourcing.Grains
             return Task.CompletedTask;
         }
 
+        public override Task OnDeactivateAsync()
+        {
+            CompleteAsync().Forget();
+
+            return Task.CompletedTask;
+        }
+
         public async Task CompleteAsync()
         {
             if (currentSubscriber != null)
@@ -296,4 +304,4 @@ namespace Squidex.Infrastructure.EventSourcing.Grains
             return eventStore.CreateSubscription(subscriber, eventConsumer!.EventsFilter, State.Position);
         }
     }
-}
+}