System.NotSupportedException: Operation is not supported.

EventStoreDB
1

Hi, i have an application that translates EventStore streams to database views that suddenly stopped working. Here are the logs that i gather from EventStore:

[PID:00988:031 2017.04.11 07:07:29.975 ERROR QueuedHandlerAutoRes] Error while processing message EventStore.Projections.Core.Messages.EventReaderSubscriptionMessage+CheckpointSuggested in queued handler ‘Projection Core #1’.

System.NotSupportedException: Operation is not supported.

at EventStore.Projections.Core.EventReaders.Feeds.FeedReader.Handle (EventStore.Projections.Core.Messages.CheckpointSuggested message) [0x00000] in :0

at EventStore.Projections.Core.Services.PublishSubscribeDispatcher`4[System.Guid,EventStore.Projections.Core.Messages.ReaderSubscriptionManagement+Subscribe,EventStore.Projections.Core.Messages.ReaderSubscriptionManagement+ReaderSubscriptionManagementMessage,EventStore.Projections.Core.Messages.EventReaderSubscriptionMessageBase].Handle[CheckpointSuggested] (EventStore.Projections.Core.Messages.CheckpointSuggested message) [0x00000] in :0

at EventStore.Projections.Core.Services.PublishSubscribeDispatcher4+Subscriber1[System.Guid,EventStore.Projections.Core.Messages.ReaderSubscriptionManagement+Subscribe,EventStore.Projections.Core.Messages.ReaderSubscriptionManagement+ReaderSubscriptionManagementMessage,EventStore.Projections.Core.Messages.EventReaderSubscriptionMessageBase,EventStore.Projections.Core.Messages.EventReaderSubscriptionMessage+CheckpointSuggested].Handle (EventStore.Projections.Core.Messages.CheckpointSuggested message) [0x00000] in :0

at EventStore.Core.Bus.MessageHandler`1[EventStore.Projections.Core.Messages.EventReaderSubscriptionMessage+CheckpointSuggested].TryHandle (EventStore.Core.Messaging.Message message) [0x00000] in :0

at EventStore.Core.Bus.InMemoryBus.Publish (EventStore.Core.Messaging.Message message) [0x00000] in :0

at EventStore.Core.Bus.InMemoryBus.Handle (EventStore.Core.Messaging.Message message) [0x00000] in :0

at EventStore.Core.Bus.QueuedHandlerAutoReset.ReadFromQueue (System.Object o) [0x00000] in :0

I restarted EventStore that it worked out again, but i am not able to figure out why it happened. Any help is appreciated.

2

EventStore version: 3.9.3, Running in t2.medium 500 iOPS Provisioned SSD

3
  1. Do you have a complete log instead of a snippet?
  2. Were you debugging a projection during this time?
4
  1. Yes i do, it will take some time to upload. I will post again after i have it successfully uploaded.
  2. Yes, i was debugging a temporal query at that time.
5

Hi Pieter,

Here is the complete error logs :

https://drive.google.com/file/d/0B0OY_24V6cEcd2pSQWxoRmVwT28/view?usp=sharing