We are using SDL web 8.5 and suddenly we are having an issue while publishing any item reason is Publish Transaction is not able to save .we are getting below error inside event viewer
Connection request timed out
Component: Tridion.ContentManager.CoreService Errorcode: 0 User: NT AUTHORITY\NETWORK SERVICE StackTrace Information Details:
at Microsoft.AspNet.SignalR.Messaging.ScaleoutStream.Send(Func`2 send, Object state)
at Tridion.ContentManager.Notifications.NotificationsManager.BroadcastNotification(NotificationMessage notification)
at Tridion.Web.UI.CME.TcmExtensions.EventHandlers.IdentifiableObjectEventHandler(IdentifiableObject subject, TcmEventArgs e, EventPhases phases)
--- End of stack trace from previous location where exception was thrown ---
at System.Runtime.ExceptionServices.ExceptionDispatchInfo.Throw()
at Tridion.ContentManager.Extensibility.EventSubscription.DeliverEvent(IEnumerable`1 subjects, TcmEventArgs eventArgs, EventPhases phase)
at Tridion.ContentManager.Extensibility.EventSystem.DeliverEvent(IEnumerable`1 subjects, TcmEventArgs eventArgs, EventDeliveryPhase deliveryPhase)
at Tridion.ContentManager.Extensibility.EventSystem.DeliverEvent(IdentifiableObject subject, TcmEventArgs eventArgs, EventDeliveryPhase deliveryPhase)
at Tridion.ContentManager.IdentifiableObject.Save(SaveEventArgs eventArgs)
at Tridion.ContentManager.IdentifiableObject.Save()
at Tridion.ContentManager.Publishing.PublishTransaction.Save()
at Tridion.ContentManager.Publishing.PublishEngine.InternalCreatePublishTransactions(IEnumerable`1 items, PublishInstructionBase instruction, IEnumerable`1 targets, IEnumerable`1 targetPurposes, Nullable`1 priority)
at Tridion.ContentManager.Publishing.PublishEngine.CreatePublishTransactions(IEnumerable`1 items, PublishInstructionBase instruction, IEnumerable`1 targets, IEnumerable`1 targetPurposes, Nullable`1 priority)
at Tridion.ContentManager.Publishing.PublishEngine.Publish(IEnumerable`1 items, PublishInstruction publishInstruction, IEnumerable`1 targetTypes)
at Tridion.ContentManager.CoreService.CoreServiceBase.Publish(IEnumerable`1 ids, PublishInstructionData publishInstruction, IEnumerable`1 targetIdsOrPurposes, Nullable`1 priority, ReadOptions readOptions)
at SyncInvokePublish(Object , Object[] , Object[] )
at System.ServiceModel.Dispatcher.SyncMethodInvoker.Invoke(Object instance, Object[] inputs, Object[]& outputs)
at Tridion.ContentManager.CoreService.CoreServiceInvoker.Invoke(Object instance, Object[] inputs, Object[]& outputs)
at System.ServiceModel.Dispatcher.DispatchOperationRuntime.InvokeBegin(MessageRpc& rpc)
at System.ServiceModel.Dispatcher.ImmutableDispatchRuntime.ProcessMessage5(MessageRpc& rpc)
at System.ServiceModel.Dispatcher.ImmutableDispatchRuntime.ProcessMessage11(MessageRpc& rpc)
at System.ServiceModel.Dispatcher.MessageRpc.Process(Boolean isOperationContextSet)