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Exception calling AppendToStreamAsync with duplicate event

Open StevenBlair123 opened this issue 2 years ago • 2 comments

Describe the bug After writing an event to the database, we truncate the stream, then attempt to write the same event to the stream. An exception is thrown on the second AppendToStreamAsync call.

To Reproduce Steps to reproduce the behavior:

  1. Write Event to Stream1
  2. Delete the Stream
  3. Write Event to Stream1

Expected behavior No Error should be thrown.

Actual behavior Exception is thrown:

Grpc.Core.RpcException : Status(StatusCode="Unknown", Detail="Exception was thrown by handler.")

Config/Logs/Screenshots If applicable, please attach your node configuration, logs or any screenshots.

EventStore details

  • EventStore server version: 22.10

  • Operating system: Windows

  • EventStore client version (if applicable): 23.0

Additional context

I have included my unit test incase it's something in the test that wrong:

[Test]
 public async Task truncated_stream_can_be_written_to(){
     String eventStoreConnectionString = ConfigurationReader.GetValue(Constants.KeyNameEventStoreConnectionString);
     EventStoreClientSettings eventStoreClientSettings = EventStoreClientSettings.Create(eventStoreConnectionString);

     eventStoreClientSettings.OperationOptions = new EventStoreClientOperationOptions(){
                                                                                           ThrowOnAppendFailure = false
                                                                                       };

     EventStoreClient eventStoreClient = new(eventStoreClientSettings);
     String streamName = $"TestStream{Guid.NewGuid():N}";

     EventData GetEvent(){
         var @event1 = new{
                              EventId = Guid.Parse("da3a18fe-74ae-4751-b97e-fd711fef260c"),
                              Id = 1,
                              Type = "TestEvent"
                          };

         Byte[] bytes = Encoding.Default.GetBytes(JsonConvert.SerializeObject(@event1));
         return   new(Uuid.FromGuid(@event1.EventId), @event1.Type, (ReadOnlyMemory<Byte>)bytes);
     }

     await eventStoreClient.AppendToStreamAsync(streamName, StreamState.NoStream, new []{ GetEvent() });

     //Truncate the stream
     DeleteResult deleteResult = await eventStoreClient.DeleteAsync(streamName, StreamState.StreamExists);

     //Get the events
     EventStoreClient.ReadStreamResult result = eventStoreClient.ReadStreamAsync(Direction.Backwards, streamName, StreamPosition.Start);

     ReadState readState = await result.ReadState;

     readState.ShouldBe(ReadState.StreamNotFound);

     IWriteResult r = await eventStoreClient.AppendToStreamAsync(streamName, 
                                                                 StreamState.Any, 
                                                                 new[] { GetEvent() },
                                                                 ConfigureOperationOptions);
 }

StevenBlair123 avatar Apr 03 '23 16:04 StevenBlair123

Have you seen anything on the server side? From the error message I'd expect an errors in the server logs.

alexeyzimarev avatar Apr 04 '23 13:04 alexeyzimarev

[ 1,12,15:45:20.256,DBG] IDEMPOTENT WRITE TO STREAM ClientCorrelationID c1321167-af19-4c91-a983-e2e7c5181757, "EventStreamId: TestStream1617ff842b064cbc98023c9a4e17f2a5, CorrelationId: c6d3dea6-9765-4d38-9576-f2fd38ea81ea, FirstEventNumber: 0, LastEventNumber: 0".

StevenBlair123 avatar Apr 04 '23 14:04 StevenBlair123