[
https://issues.apache.org/jira/browse/TINKERPOP-2019?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16580559#comment-16580559
]
Sami edited comment on TINKERPOP-2019 at 8/14/18 11:49 PM:
-----------------------------------------------------------
Thank you, Florian.
Let me share the Stack Trace which may be helpful.
{code:java}
System.InvalidOperationException:
at System.Runtime.ExceptionServices.ExceptionDispatchInfo.Throw
(System.Private.CoreLib, Version=4.0.0.0, Culture=neutral,
PublicKeyToken=7cec85d7bea7798e)
at System.Runtime.CompilerServices.TaskAwaiter.ThrowForNonSuccess
(System.Private.CoreLib, Version=4.0.0.0, Culture=neutral,
PublicKeyToken=7cec85d7bea7798e)
at
System.Runtime.CompilerServices.TaskAwaiter.HandleNonSuccessAndDebuggerNotification
(System.Private.CoreLib, Version=4.0.0.0, Culture=neutral,
PublicKeyToken=7cec85d7bea7798e)
at Gremlin.Net.Driver.WebSocketConnection+<SendMessageAsync>d__5.MoveNext
(Gremlin.Net, Version=3.3.0.0, Culture=neutral, PublicKeyToken=d2035e9aa387a711)
at System.Runtime.ExceptionServices.ExceptionDispatchInfo.Throw
(System.Private.CoreLib, Version=4.0.0.0, Culture=neutral,
PublicKeyToken=7cec85d7bea7798e)
at System.Runtime.CompilerServices.TaskAwaiter.ThrowForNonSuccess
(System.Private.CoreLib, Version=4.0.0.0, Culture=neutral,
PublicKeyToken=7cec85d7bea7798e)
at
System.Runtime.CompilerServices.TaskAwaiter.HandleNonSuccessAndDebuggerNotification
(System.Private.CoreLib, Version=4.0.0.0, Culture=neutral,
PublicKeyToken=7cec85d7bea7798e)
at Gremlin.Net.Driver.Connection+<SendAsync>d__13.MoveNext (Gremlin.Net,
Version=3.3.0.0, Culture=neutral, PublicKeyToken=d2035e9aa387a711)
at System.Runtime.ExceptionServices.ExceptionDispatchInfo.Throw
(System.Private.CoreLib, Version=4.0.0.0, Culture=neutral,
PublicKeyToken=7cec85d7bea7798e)
at System.Runtime.CompilerServices.TaskAwaiter.ThrowForNonSuccess
(System.Private.CoreLib, Version=4.0.0.0, Culture=neutral,
PublicKeyToken=7cec85d7bea7798e)
at
System.Runtime.CompilerServices.TaskAwaiter.HandleNonSuccessAndDebuggerNotification
(System.Private.CoreLib, Version=4.0.0.0, Culture=neutral,
PublicKeyToken=7cec85d7bea7798e)
at Gremlin.Net.Driver.Connection+<SubmitAsync>d__8`1.MoveNext (Gremlin.Net,
Version=3.3.0.0, Culture=neutral, PublicKeyToken=d2035e9aa387a711)
at System.Runtime.ExceptionServices.ExceptionDispatchInfo.Throw
(System.Private.CoreLib, Version=4.0.0.0, Culture=neutral,
PublicKeyToken=7cec85d7bea7798e)
at System.Runtime.CompilerServices.TaskAwaiter.ThrowForNonSuccess
(System.Private.CoreLib, Version=4.0.0.0, Culture=neutral,
PublicKeyToken=7cec85d7bea7798e)
at
System.Runtime.CompilerServices.TaskAwaiter.HandleNonSuccessAndDebuggerNotification
(System.Private.CoreLib, Version=4.0.0.0, Culture=neutral,
PublicKeyToken=7cec85d7bea7798e)
at Gremlin.Net.Driver.ProxyConnection+<SubmitAsync>d__3`1.MoveNext
(Gremlin.Net, Version=3.3.0.0, Culture=neutral, PublicKeyToken=d2035e9aa387a711)
at System.Runtime.ExceptionServices.ExceptionDispatchInfo.Throw
(System.Private.CoreLib, Version=4.0.0.0, Culture=neutral,
PublicKeyToken=7cec85d7bea7798e)
at System.Runtime.CompilerServices.TaskAwaiter.ThrowForNonSuccess
(System.Private.CoreLib, Version=4.0.0.0, Culture=neutral,
PublicKeyToken=7cec85d7bea7798e)
at
System.Runtime.CompilerServices.TaskAwaiter.HandleNonSuccessAndDebuggerNotification
(System.Private.CoreLib, Version=4.0.0.0, Culture=neutral,
PublicKeyToken=7cec85d7bea7798e)
at Gremlin.Net.Driver.GremlinClient+<SubmitAsync>d__6`1.MoveNext (Gremlin.Net,
Version=3.3.0.0, Culture=neutral, PublicKeyToken=d2035e9aa387a711)
at System.Runtime.ExceptionServices.ExceptionDispatchInfo.Throw
(System.Private.CoreLib, Version=4.0.0.0, Culture=neutral,
PublicKeyToken=7cec85d7bea7798e)
at System.Runtime.CompilerServices.TaskAwaiter.ThrowForNonSuccess
(System.Private.CoreLib, Version=4.0.0.0, Culture=neutral,
PublicKeyToken=7cec85d7bea7798e)
at
System.Runtime.CompilerServices.TaskAwaiter.HandleNonSuccessAndDebuggerNotification
(System.Private.CoreLib, Version=4.0.0.0, Culture=neutral,
PublicKeyToken=7cec85d7bea7798e)
at Gremlin.Net.Driver.GremlinClientExtensions+<SubmitAsync>d__4`1.MoveNext
(Gremlin.Net, Version=3.3.0.0, Culture=neutral, PublicKeyToken=d2035e9aa387a711)
at System.Runtime.ExceptionServices.ExceptionDispatchInfo.Throw
(System.Private.CoreLib, Version=4.0.0.0, Culture=neutral,
PublicKeyToken=7cec85d7bea7798e)
at System.Runtime.CompilerServices.TaskAwaiter.ThrowForNonSuccess
(System.Private.CoreLib, Version=4.0.0.0, Culture=neutral,
PublicKeyToken=7cec85d7bea7798e)
at
System.Runtime.CompilerServices.TaskAwaiter.HandleNonSuccessAndDebuggerNotification
(System.Private.CoreLib, Version=4.0.0.0, Culture=neutral,
PublicKeyToken=7cec85d7bea7798e)
at SampleProject.Repository.Cosmos.Reader+<ExecuteGremlinQuery>d__14.MoveNext
(<...removed...>)
at System.Runtime.ExceptionServices.ExceptionDispatchInfo.Throw
(System.Private.CoreLib, Version=4.0.0.0, Culture=neutral,
PublicKeyToken=7cec85d7bea7798e)
at System.Runtime.CompilerServices.TaskAwaiter.ThrowForNonSuccess
(System.Private.CoreLib, Version=4.0.0.0, Culture=neutral,
PublicKeyToken=7cec85d7bea7798e)
at
System.Runtime.CompilerServices.TaskAwaiter.HandleNonSuccessAndDebuggerNotification
(System.Private.CoreLib, Version=4.0.0.0, Culture=neutral,
PublicKeyToken=7cec85d7bea7798e)
at SampleProject.Repository.Cosmos.UnitOfWork+<CreatePersonAsync>d__30.MoveNext
(<...removed...>)
at System.Runtime.ExceptionServices.ExceptionDispatchInfo.Throw
(System.Private.CoreLib, Version=4.0.0.0, Culture=neutral,
PublicKeyToken=7cec85d7bea7798e)
at System.Runtime.CompilerServices.TaskAwaiter.ThrowForNonSuccess
(System.Private.CoreLib, Version=4.0.0.0, Culture=neutral,
PublicKeyToken=7cec85d7bea7798e)
at
System.Runtime.CompilerServices.TaskAwaiter.HandleNonSuccessAndDebuggerNotification
(System.Private.CoreLib, Version=4.0.0.0, Culture=neutral,
PublicKeyToken=7cec85d7bea7798e)
at System.Runtime.CompilerServices.TaskAwaiter`1.GetResult
(System.Private.CoreLib, Version=4.0.0.0, Culture=neutral,
PublicKeyToken=7cec85d7bea7798e)
at SampleProject.Controller.PersonController+<Post>d__5.MoveNext
(<...removed...>)
at System.Runtime.ExceptionServices.ExceptionDispatchInfo.Throw
(System.Private.CoreLib, Version=4.0.0.0, Culture=neutral,
PublicKeyToken=7cec85d7bea7798e)
at System.Runtime.CompilerServices.TaskAwaiter.ThrowForNonSuccess
(System.Private.CoreLib, Version=4.0.0.0, Culture=neutral,
PublicKeyToken=7cec85d7bea7798e)
at
System.Runtime.CompilerServices.TaskAwaiter.HandleNonSuccessAndDebuggerNotification
(System.Private.CoreLib, Version=4.0.0.0, Culture=neutral,
PublicKeyToken=7cec85d7bea7798e)
at
Microsoft.AspNetCore.Mvc.Internal.ControllerActionInvoker+<InvokeActionMethodAsync>d__12.MoveNext
(Microsoft.AspNetCore.Mvc.Core, Version=2.0.2.0, Culture=neutral,
PublicKeyToken=adb9793829ddae60)
at System.Runtime.ExceptionServices.ExceptionDispatchInfo.Throw
(System.Private.CoreLib, Version=4.0.0.0, Culture=neutral,
PublicKeyToken=7cec85d7bea7798e)
at System.Runtime.CompilerServices.TaskAwaiter.ThrowForNonSuccess
(System.Private.CoreLib, Version=4.0.0.0, Culture=neutral,
PublicKeyToken=7cec85d7bea7798e)
at
Microsoft.AspNetCore.Mvc.Internal.ControllerActionInvoker+<InvokeNextActionFilterAsync>d__10.MoveNext
(Microsoft.AspNetCore.Mvc.Core, Version=2.0.2.0, Culture=neutral,
PublicKeyToken=adb9793829ddae60)
at System.Runtime.ExceptionServices.ExceptionDispatchInfo.Throw
(System.Private.CoreLib, Version=4.0.0.0, Culture=neutral,
PublicKeyToken=7cec85d7bea7798e)
at Microsoft.AspNetCore.Mvc.Internal.ControllerActionInvoker.Rethrow
(Microsoft.AspNetCore.Mvc.Core, Version=2.0.2.0, Culture=neutral,
PublicKeyToken=adb9793829ddae60)
at Microsoft.AspNetCore.Mvc.Internal.ControllerActionInvoker.Next
(Microsoft.AspNetCore.Mvc.Core, Version=2.0.2.0, Culture=neutral,
PublicKeyToken=adb9793829ddae60)
at
Microsoft.AspNetCore.Mvc.Internal.ControllerActionInvoker+<InvokeInnerFilterAsync>d__14.MoveNext
(Microsoft.AspNetCore.Mvc.Core, Version=2.0.2.0, Culture=neutral,
PublicKeyToken=adb9793829ddae60)
at System.Runtime.ExceptionServices.ExceptionDispatchInfo.Throw
(System.Private.CoreLib, Version=4.0.0.0, Culture=neutral,
PublicKeyToken=7cec85d7bea7798e)
at System.Runtime.CompilerServices.TaskAwaiter.ThrowForNonSuccess
(System.Private.CoreLib, Version=4.0.0.0, Culture=neutral,
PublicKeyToken=7cec85d7bea7798e)
at
Microsoft.AspNetCore.Mvc.Internal.ResourceInvoker+<InvokeNextExceptionFilterAsync>d__23.MoveNext
(Microsoft.AspNetCore.Mvc.Core, Version=2.0.2.0, Culture=neutral,
PublicKeyToken=adb9793829ddae60)
{code}
Note in the Stack Trace above that once we make a call to ExecuteGremlinQuery,
all subsequent calls in the stack are calls within Gremlin.Net.Driver.
{code:java}
at SampleProject.Repository.Cosmos.Reader+<ExecuteGremlinQuery>d__14.MoveNext
(<...removed...>){code}
Given that fact, I'm thinking that this may be a bug of Gremlin.Net.
Also, I implemented a try/catch to catch the InvalidOperationException with a
retry and now we are getting the following error; basically we run out of
pooled connections and Gremlin.Net shuts down. (Yikes!) : )
{code:java}
System.Net.WebSockets.WebSocketException:
at System.Net.WebSockets.WebSocketValidate.ThrowIfInvalidState
(System.Net.WebSockets.Client, Version=4.1.0.0, Culture=neutral,
PublicKeyToken=b03f5f7f11d50a3a)
at System.Net.WebSockets.WinHttpWebSocketState.InterlockedCheckAndUpdateState
(System.Net.WebSockets.Client, Version=4.1.0.0, Culture=neutral,
PublicKeyToken=b03f5f7f11d50a3a)
at System.Net.WebSockets.WinHttpWebSocket+<CloseAsync>d__30.MoveNext
(System.Net.WebSockets.Client, Version=4.1.0.0, Culture=neutral,
PublicKeyToken=b03f5f7f11d50a3a)
at System.Runtime.ExceptionServices.ExceptionDispatchInfo.Throw
(System.Private.CoreLib, Version=4.0.0.0, Culture=neutral,
PublicKeyToken=7cec85d7bea7798e)
at System.Runtime.CompilerServices.TaskAwaiter.ThrowForNonSuccess
(System.Private.CoreLib, Version=4.0.0.0, Culture=neutral,
PublicKeyToken=7cec85d7bea7798e)
at
System.Runtime.CompilerServices.TaskAwaiter.HandleNonSuccessAndDebuggerNotification
(System.Private.CoreLib, Version=4.0.0.0, Culture=neutral,
PublicKeyToken=7cec85d7bea7798e)
at Gremlin.Net.Driver.WebSocketConnection+<CloseAsync>d__4.MoveNext
(Gremlin.Net, Version=3.3.0.0, Culture=neutral, PublicKeyToken=d2035e9aa387a711)
at System.Runtime.ExceptionServices.ExceptionDispatchInfo.Throw
(System.Private.CoreLib, Version=4.0.0.0, Culture=neutral,
PublicKeyToken=7cec85d7bea7798e)
at System.Runtime.CompilerServices.TaskAwaiter.ThrowForNonSuccess
(System.Private.CoreLib, Version=4.0.0.0, Culture=neutral,
PublicKeyToken=7cec85d7bea7798e)
at
System.Runtime.CompilerServices.TaskAwaiter.HandleNonSuccessAndDebuggerNotification
(System.Private.CoreLib, Version=4.0.0.0, Culture=neutral,
PublicKeyToken=7cec85d7bea7798e)
at Gremlin.Net.Driver.Connection+<CloseAsync>d__10.MoveNext (Gremlin.Net,
Version=3.3.0.0, Culture=neutral, PublicKeyToken=d2035e9aa387a711)
at System.Runtime.ExceptionServices.ExceptionDispatchInfo.Throw
(System.Private.CoreLib, Version=4.0.0.0, Culture=neutral,
PublicKeyToken=7cec85d7bea7798e)
at System.Runtime.CompilerServices.TaskAwaiter.ThrowForNonSuccess
(System.Private.CoreLib, Version=4.0.0.0, Culture=neutral,
PublicKeyToken=7cec85d7bea7798e)
at
System.Runtime.CompilerServices.TaskAwaiter.HandleNonSuccessAndDebuggerNotification
(System.Private.CoreLib, Version=4.0.0.0, Culture=neutral,
PublicKeyToken=7cec85d7bea7798e)
at Gremlin.Net.Driver.ConnectionPool+<TeardownAsync>d__15.MoveNext
(Gremlin.Net, Version=3.3.0.0, Culture=neutral, PublicKeyToken=d2035e9aa387a711)
at System.Runtime.ExceptionServices.ExceptionDispatchInfo.Throw
(System.Private.CoreLib, Version=4.0.0.0, Culture=neutral,
PublicKeyToken=7cec85d7bea7798e)
at Gremlin.Net.Process.Utils.WaitUnwrap (Gremlin.Net, Version=3.3.0.0,
Culture=neutral, PublicKeyToken=d2035e9aa387a711)
at Gremlin.Net.Driver.ConnectionPool.CloseAndRemoveAllConnections (Gremlin.Net,
Version=3.3.0.0, Culture=neutral, PublicKeyToken=d2035e9aa387a711)
at Gremlin.Net.Driver.ConnectionPool.AddConnectionIfOpen (Gremlin.Net,
Version=3.3.0.0, Culture=neutral, PublicKeyToken=d2035e9aa387a711)
at Gremlin.Net.Driver.ProxyConnection.Dispose (Gremlin.Net, Version=3.3.0.0,
Culture=neutral, PublicKeyToken=d2035e9aa387a711)
at Gremlin.Net.Driver.GremlinClient+<SubmitAsync>d__6`1.MoveNext (Gremlin.Net,
Version=3.3.0.0, Culture=neutral, PublicKeyToken=d2035e9aa387a711)
at System.Runtime.ExceptionServices.ExceptionDispatchInfo.Throw
(System.Private.CoreLib, Version=4.0.0.0, Culture=neutral,
PublicKeyToken=7cec85d7bea7798e)
at System.Runtime.CompilerServices.TaskAwaiter.ThrowForNonSuccess
(System.Private.CoreLib, Version=4.0.0.0, Culture=neutral,
PublicKeyToken=7cec85d7bea7798e)
at
System.Runtime.CompilerServices.TaskAwaiter.HandleNonSuccessAndDebuggerNotification
(System.Private.CoreLib, Version=4.0.0.0, Culture=neutral,
PublicKeyToken=7cec85d7bea7798e)
at Gremlin.Net.Driver.GremlinClientExtensions+<SubmitAsync>d__4`1.MoveNext
(Gremlin.Net, Version=3.3.0.0, Culture=neutral, PublicKeyToken=d2035e9aa387a711)
at System.Runtime.ExceptionServices.ExceptionDispatchInfo.Throw
(System.Private.CoreLib, Version=4.0.0.0, Culture=neutral,
PublicKeyToken=7cec85d7bea7798e)
at System.Runtime.CompilerServices.TaskAwaiter.ThrowForNonSuccess
(System.Private.CoreLib, Version=4.0.0.0, Culture=neutral,
PublicKeyToken=7cec85d7bea7798e)
at
System.Runtime.CompilerServices.TaskAwaiter.HandleNonSuccessAndDebuggerNotification
(System.Private.CoreLib, Version=4.0.0.0, Culture=neutral,
PublicKeyToken=7cec85d7bea7798e)
at System.Runtime.CompilerServices.TaskAwaiter`1.GetResult
(System.Private.CoreLib, Version=4.0.0.0, Culture=neutral,
PublicKeyToken=7cec85d7bea7798e)
at SampleProject.Repository.Cosmos.Reader+<ExecuteGremlinQuery>d__14.MoveNext
(<...removed...>)
at System.Runtime.ExceptionServices.ExceptionDispatchInfo.Throw
(System.Private.CoreLib, Version=4.0.0.0, Culture=neutral,
PublicKeyToken=7cec85d7bea7798e)
at System.Runtime.CompilerServices.TaskAwaiter.ThrowForNonSuccess
(System.Private.CoreLib, Version=4.0.0.0, Culture=neutral,
PublicKeyToken=7cec85d7bea7798e)
at
System.Runtime.CompilerServices.TaskAwaiter.HandleNonSuccessAndDebuggerNotification
(System.Private.CoreLib, Version=4.0.0.0, Culture=neutral,
PublicKeyToken=7cec85d7bea7798e)
at System.Runtime.CompilerServices.TaskAwaiter`1.GetResult
(System.Private.CoreLib, Version=4.0.0.0, Culture=neutral,
PublicKeyToken=7cec85d7bea7798e)
at
SampleProject.Repository.Cosmos.UnitOfWork+<CreateAddressAsync>d__30.MoveNext
(<...removed...>)
at System.Runtime.ExceptionServices.ExceptionDispatchInfo.Throw
(System.Private.CoreLib, Version=4.0.0.0, Culture=neutral,
PublicKeyToken=7cec85d7bea7798e)
at System.Runtime.CompilerServices.TaskAwaiter.ThrowForNonSuccess
(System.Private.CoreLib, Version=4.0.0.0, Culture=neutral,
PublicKeyToken=7cec85d7bea7798e)
at
System.Runtime.CompilerServices.TaskAwaiter.HandleNonSuccessAndDebuggerNotification
(System.Private.CoreLib, Version=4.0.0.0, Culture=neutral,
PublicKeyToken=7cec85d7bea7798e)
at System.Runtime.CompilerServices.TaskAwaiter`1.GetResult
(System.Private.CoreLib, Version=4.0.0.0, Culture=neutral,
PublicKeyToken=7cec85d7bea7798e)
at SampleProject.Repository.Cosmos.UnitOfWork+<CreatePersonAsync>d__30.MoveNext
(<...removed...>)
at System.Runtime.ExceptionServices.ExceptionDispatchInfo.Throw
(System.Private.CoreLib, Version=4.0.0.0, Culture=neutral,
PublicKeyToken=7cec85d7bea7798e)
at System.Runtime.CompilerServices.TaskAwaiter.ThrowForNonSuccess
(System.Private.CoreLib, Version=4.0.0.0, Culture=neutral,
PublicKeyToken=7cec85d7bea7798e)
at
System.Runtime.CompilerServices.TaskAwaiter.HandleNonSuccessAndDebuggerNotification
(System.Private.CoreLib, Version=4.0.0.0, Culture=neutral,
PublicKeyToken=7cec85d7bea7798e)
at System.Runtime.CompilerServices.TaskAwaiter`1.GetResult
(System.Private.CoreLib, Version=4.0.0.0, Culture=neutral,
PublicKeyToken=7cec85d7bea7798e)
at SampleProject.Controller.PersonController+<Post>d__5.MoveNext
(<...removed...>)
at System.Runtime.ExceptionServices.ExceptionDispatchInfo.Throw
(System.Private.CoreLib, Version=4.0.0.0, Culture=neutral,
PublicKeyToken=7cec85d7bea7798e)
at System.Runtime.CompilerServices.TaskAwaiter.ThrowForNonSuccess
(System.Private.CoreLib, Version=4.0.0.0, Culture=neutral,
PublicKeyToken=7cec85d7bea7798e)
at
System.Runtime.CompilerServices.TaskAwaiter.HandleNonSuccessAndDebuggerNotification
(System.Private.CoreLib, Version=4.0.0.0, Culture=neutral,
PublicKeyToken=7cec85d7bea7798e)
at
Microsoft.AspNetCore.Mvc.Internal.ControllerActionInvoker+<InvokeActionMethodAsync>d__12.MoveNext
(Microsoft.AspNetCore.Mvc.Core, Version=2.0.2.0, Culture=neutral,
PublicKeyToken=adb9793829ddae60)
at System.Runtime.ExceptionServices.ExceptionDispatchInfo.Throw
(System.Private.CoreLib, Version=4.0.0.0, Culture=neutral,
PublicKeyToken=7cec85d7bea7798e)
at System.Runtime.CompilerServices.TaskAwaiter.ThrowForNonSuccess
(System.Private.CoreLib, Version=4.0.0.0, Culture=neutral,
PublicKeyToken=7cec85d7bea7798e)
at
Microsoft.AspNetCore.Mvc.Internal.ControllerActionInvoker+<InvokeNextActionFilterAsync>d__10.MoveNext
(Microsoft.AspNetCore.Mvc.Core, Version=2.0.2.0, Culture=neutral,
PublicKeyToken=adb9793829ddae60)
at System.Runtime.ExceptionServices.ExceptionDispatchInfo.Throw
(System.Private.CoreLib, Version=4.0.0.0, Culture=neutral,
PublicKeyToken=7cec85d7bea7798e)
at Microsoft.AspNetCore.Mvc.Internal.ControllerActionInvoker.Rethrow
(Microsoft.AspNetCore.Mvc.Core, Version=2.0.2.0, Culture=neutral,
PublicKeyToken=adb9793829ddae60)
at Microsoft.AspNetCore.Mvc.Internal.ControllerActionInvoker.Next
(Microsoft.AspNetCore.Mvc.Core, Version=2.0.2.0, Culture=neutral,
PublicKeyToken=adb9793829ddae60)
at
Microsoft.AspNetCore.Mvc.Internal.ControllerActionInvoker+<InvokeInnerFilterAsync>d__14.MoveNext
(Microsoft.AspNetCore.Mvc.Core, Version=2.0.2.0, Culture=neutral,
PublicKeyToken=adb9793829ddae60)
at System.Runtime.ExceptionServices.ExceptionDispatchInfo.Throw
(System.Private.CoreLib, Version=4.0.0.0, Culture=neutral,
PublicKeyToken=7cec85d7bea7798e)
at System.Runtime.CompilerServices.TaskAwaiter.ThrowForNonSuccess
(System.Private.CoreLib, Version=4.0.0.0, Culture=neutral,
PublicKeyToken=7cec85d7bea7798e)
at
Microsoft.AspNetCore.Mvc.Internal.ResourceInvoker+<InvokeNextExceptionFilterAsync>d__23.MoveNext
(Microsoft.AspNetCore.Mvc.Core, Version=2.0.2.0, Culture=neutral,
PublicKeyToken=adb9793829ddae60)
{code}
One side note: I did _very slightly_ modify the stack trace just to remove
personal information and our local class & method names but only any place
you'd see "SampleProject"
At this point, it looks like we need to pursue a solution. Would you please
help us take a close look?
Please let me know what I can do on my end to help get this resolved.
Unfortunately the error is very difficult to reproduce. Also, I'm not sure if I
can abstract out Cosmosdb and only work with the Gremlin server since I don't
have experience with it.
> Gremlin.Net.Driver.WebSocketConnection throws System.InvalidOperationException
> ------------------------------------------------------------------------------
>
> Key: TINKERPOP-2019
> URL: https://issues.apache.org/jira/browse/TINKERPOP-2019
> Project: TinkerPop
> Issue Type: Bug
> Components: dotnet
> Affects Versions: 3.3.3
> Environment: Azure App Service
> Reporter: Sami
> Priority: Critical
>
> We're getting the following {{System.InvalidOperationException}} error
> message:
> {code:c#}
> "There is already one outstanding 'SendAsync' call for this WebSocket
> instance. ReceiveAsync and SendAsync can be called simultaneously, but at
> most one outstanding operation for each of them is allowed at the same time.
> Problem Id:
> System.InvalidOperationException at
> Gremlin.Net.Driver.WebSocketConnection+<SendMessageAsync>d__5.MoveNext"{code}
>
> We get this exception sporadically and only a few times out of thousands.
> Unfortunately we have not been able to reproduce it.
>
> I understand that when dealing with web sockets, it is allowed to have only
> a single pending "send" or a single pending "receive".
>
> After looking at GitHub's WebSocketConnection class, I don't see any
> orchestration between SendMessageAsync's {{_client.SendAsync}} (currently
> line 54) and ReceiveMessageAsync's {{_client.ReceiveAsync}} (currently line
> 66).
>
> Reference Link:
>
> [https://github.com/apache/tinkerpop/blob/master/gremlin-dotnet/src/Gremlin.Net/Driver/WebSocketConnection.cs]
>
> I'm wondering if not having orchestration in the WebSocketConnection class
> to keep the single pending "send" or a single pending "receive" rule may be
> the cause.
>
> In our .NET Core web api application, we create the GremlinConnection as a
> singleton in Startup.cs and then have one central call that makes Gremlin
> calls; i.e. it's a very straightforward implementation.
>
> Startup.cs:
> {code:c#}
> public void ConfigureServices(IServiceCollection services)
> {
> //...other stuff removed for brevity
> services.AddSingleton<IGremlinConnection, GremlinConnection>();
> }{code}
>
> Reader.cs:
> {code:c#}
> public async Task<IReadOnlyCollection<dynamic>> ExecuteGremlinQuery(string
> query)
> {
> try
> {
> return await _gremlinConnection.Client.SubmitAsync<dynamic>(query);
> }
> catch (Gremlin.Net.Driver.Exceptions.ResponseException responseException)
> {
> //our error handling removed for brevity!
> }
> }{code}
>
> We use the Gremlin.Net version 3.3.3 nuget package and the
> Microsoft.NETCore.App SDK
>
> Would it be possible to identify if this is indeed a bug on Gremlin.NET?
> And if it is, any thoughts on a best-practice (temporary) work-around that
> we can implement?
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