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From "ASF GitHub Bot (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (TINKERPOP-2090) After running backend for a day or so System.IO.IOException keep throwing
Date Thu, 11 Apr 2019 21:02:00 GMT

    [ https://issues.apache.org/jira/browse/TINKERPOP-2090?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16815774#comment-16815774
] 

ASF GitHub Bot commented on TINKERPOP-2090:
-------------------------------------------

bpeav commented on pull request #1096: TINKERPOP-2090: Fix Sign for Checking if Connection
Pool Needs to be Repopulated
URL: https://github.com/apache/tinkerpop/pull/1096
 
 
   https://issues.apache.org/jira/browse/TINKERPOP-2090
   
   Going through the commit history, it looks like the comparison changed in this PR used
to be correct but was erroneously flipped after several modifications.
   
   _poolSize is the maximum number of connections in the pool and NrConnections is the actual
number of connections currently open. The comparison would previously always be true, causing
EnsurePoolIsPopulatedAsync() to always early exit and never repopulate the pool as connections
in it were disposed of and removed.
 
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> After running backend for a day or so System.IO.IOException keep throwing
> -------------------------------------------------------------------------
>
>                 Key: TINKERPOP-2090
>                 URL: https://issues.apache.org/jira/browse/TINKERPOP-2090
>             Project: TinkerPop
>          Issue Type: Bug
>          Components: dotnet
>    Affects Versions: 3.4.0
>         Environment: .NET Core 2.1.5
> Microsoft Azure
>            Reporter: Saber Karmous
>            Priority: Critical
>
> .NET Core 2.1.5
> Gremlin.NET 3.4.0-rc2 
> We're using the latest RC of the Gremlin client. And we have a gremlin client that's
being injected as a singleton through out IoC container. After running the backend for a day
or two it keeps throwing System.IO.IOExceptions. If we restart the application it works again.
> We use Polly for out retry strategy, and retrying for 9 times. But it keeps failing.
> I added the stack trace below. Reproducing is a bit of a pain in the behind, you have
to wait for a day or two for the exception to occur.
> {noformat}
> *no* System.IO.IOException:
>  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.ConfiguredValueTaskAwaitable+ConfiguredValueTaskAwaiter.GetResult
(System.Private.CoreLib, Version=4.0.0.0, Culture=neutral, PublicKeyToken=7cec85d7bea7798e)
>  at System.Net.Security.SslStreamInternal+<<WriteSingleChunk>g__CompleteAsync|36_1>d`1.MoveNext
(System.Net.Security, Version=4.1.1.0, 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 System.Runtime.CompilerServices.ConfiguredValueTaskAwaitable+ConfiguredValueTaskAwaiter.GetResult
(System.Private.CoreLib, Version=4.0.0.0, Culture=neutral, PublicKeyToken=7cec85d7bea7798e)
>  at System.Net.Security.SslStreamInternal+<<WriteAsyncInternal>g__ExitWriteAsync|35_0>d`1.MoveNext
(System.Net.Security, Version=4.1.1.0, 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+<SendMessageAsync>d__7.MoveNext (Gremlin.Net,
Version=3.4.0.0, 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=3.4.0.0,
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=3.4.0.0,
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=3.4.0.0, 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=3.4.0.0, 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=3.4.0.0, 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 boskalis.world.data.repository.Services.AzureCosmosDBGremlinProvider+<>c__DisplayClass9_0`1+<<Query>b__5>d.MoveNext
(boskalis.world.data.logic, Version=1.0.0.0, Culture=neutral, PublicKeyToken=nullboskalis.world.data.logic,
Version=1.0.0.0, Culture=neutral, PublicKeyToken=null: D:\a\1\s\src\boskalis.world.data.logic\Services\AzureCosmosDBGremlinProvider.csboskalis.world.data.logic,
Version=1.0.0.0, Culture=neutral, PublicKeyToken=null: 222)
>  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 Polly.Policy+<>c__DisplayClass181_0`1+<<ExecuteAsyncInternal>b__0>d.MoveNext
(Polly, Version=6.0.0.0, Culture=neutral, PublicKeyToken=c8a3ffc3f8f825cc)
>  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 Polly.RetrySyntaxAsync+<>c__DisplayClass25_1+<<WaitAndRetryAsync>b__1>d.MoveNext
(Polly, Version=6.0.0.0, Culture=neutral, PublicKeyToken=c8a3ffc3f8f825cc)
>  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 Polly.Retry.RetryEngine+<ImplementationAsync>d__1`1.MoveNext (Polly, Version=6.0.0.0,
Culture=neutral, PublicKeyToken=c8a3ffc3f8f825cc)
> Inner exception System.Net.Sockets.SocketException handled at System.Runtime.ExceptionServices.ExceptionDispatchInfo.Throw:
> {noformat}
> I'm going to implement a workaround by recycling the client every couple of hours.
>  



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