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HttpWebRequest.GetResponse中的System.AccessViolationException

2016-09-15 111 views
2

下面的異常很少發生，大約1-5次，持續使用3周。在3個星期內，WebClient被大量使用，造成成千上萬的請求。服務器正在運行安裝了所有更新的Windows Server 2012 R2。該過程是64位。發生這種情況時沒有特殊情況。HttpWebRequest.GetResponse中的System.AccessViolationException

Framework Version: v4.0.30319 
Description: The process was terminated due to an unhandled exception. 
Exception Info: System.AccessViolationException 
    at System.Collections.Concurrent.ConcurrentStack`1[[System.__Canon, mscorlib, Version=4.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089]].TryPop(System.__Canon ByRef) 
    at System.Net.Sockets.Socket.Receive(Byte[], Int32, Int32, System.Net.Sockets.SocketFlags) 
    at System.Net.Sockets.NetworkStream.Read(Byte[], Int32, Int32) 
    at System.Net.FixedSizeReader.ReadPacket(Byte[], Int32, Int32) 
    at System.Net.Security._SslStream.StartFrameHeader(Byte[], Int32, Int32, System.Net.AsyncProtocolRequest) 
    at System.Net.Security._SslStream.StartReading(Byte[], Int32, Int32, System.Net.AsyncProtocolRequest) 
    at System.Net.Security._SslStream.ProcessRead(Byte[], Int32, Int32, System.Net.AsyncProtocolRequest) 
    at System.Net.TlsStream.Read(Byte[], Int32, Int32) 
    at System.Net.Connection.SyncRead(System.Net.HttpWebRequest, Boolean, Boolean) 
    at System.Net.ConnectStream.ProcessWriteCallDone(System.Net.ConnectionReturnResult) 
    at System.Net.ConnectStream.CallDone(System.Net.ConnectionReturnResult) 
    at System.Net.ConnectStream.CloseInternal(Boolean, Boolean) 
    at System.Net.ConnectStream.System.Net.ICloseEx.CloseEx(System.Net.CloseExState) 
    at System.Net.HttpWebRequest.EndWriteHeaders_Part2() 
    at System.Net.HttpWebRequest.EndWriteHeaders(Boolean) 
    at System.Net.HttpWebRequest.WriteHeadersCallback(System.Net.WebExceptionStatus, System.Net.ConnectStream, Boolean) 
    at System.Net.ConnectStream.WriteHeaders(Boolean) 
    at System.Net.HttpWebRequest.EndSubmitRequest() 
    at System.Net.Connection.CompleteConnection(Boolean, System.Net.HttpWebRequest) 
    at System.Net.Connection.CompleteStartConnection(Boolean, System.Net.HttpWebRequest) 
    at System.Net.Connection.CompleteStartRequest(Boolean, System.Net.HttpWebRequest, System.Net.TriState) 
    at System.Net.Connection.SubmitRequest(System.Net.HttpWebRequest, Boolean) 
    at System.Net.ServicePoint.SubmitRequest(System.Net.HttpWebRequest, System.String) 
    at System.Net.HttpWebRequest.SubmitRequest(System.Net.ServicePoint) 
    at System.Net.HttpWebRequest.GetResponse() 
    at System.Net.WebClient.GetWebResponse(System.Net.WebRequest) 
    at System.Net.WebClient.DownloadBits(System.Net.WebRequest, System.IO.Stream, System.Net.CompletionDelegate, System.ComponentModel.AsyncOperation) 
    at System.Net.WebClient.DownloadDataInternal(System.Uri, System.Net.WebRequest ByRef) 
    at System.Net.WebClient.DownloadString(System.Uri) 
    at Company.Code.Method3(System.String) 
    at System.Threading.Tasks.Parallel+<>c__DisplayClass42_0`2[[System.Collections.Generic.KeyValuePair`2[[System.__Canon, mscorlib, Version=4.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089],[System.Int32, mscorlib, Version=4.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089]], mscorlib, Version=4.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089],[System.__Canon, mscorlib, Version=4.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089]].<PartitionerForEachWorker>b__1() 
    at System.Threading.Tasks.Task.InnerInvokeWithArg(System.Threading.Tasks.Task) 
    at System.Threading.Tasks.Task+<>c__DisplayClass176_0.<ExecuteSelfReplicating>b__0(System.Object) 
    at System.Threading.ExecutionContext.RunInternal(System.Threading.ExecutionContext, System.Threading.ContextCallback, System.Object, Boolean) 
    at System.Threading.ExecutionContext.Run(System.Threading.ExecutionContext, System.Threading.ContextCallback, System.Object, Boolean) 
    at System.Threading.Tasks.Task.ExecuteWithThreadLocal(System.Threading.Tasks.Task ByRef) 
    at System.Threading.Tasks.Task.ExecuteEntry(Boolean) 
    at System.Threading.Tasks.ThreadPoolTaskScheduler.TryExecuteTaskInline(System.Threading.Tasks.Task, Boolean) 
    at System.Threading.Tasks.TaskScheduler.TryRunInline(System.Threading.Tasks.Task, Boolean) 
    at System.Threading.Tasks.Task.InternalRunSynchronously(System.Threading.Tasks.TaskScheduler, Boolean) 
    at System.Threading.Tasks.Parallel.PartitionerForEachWorker[[System.Collections.Generic.KeyValuePair`2[[System.__Canon, mscorlib, Version=4.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089],[System.Int32, mscorlib, Version=4.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089]], mscorlib, Version=4.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089],[System.__Canon, mscorlib, Version=4.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089]](System.Collections.Concurrent.Partitioner`1<System.Collections.Generic.KeyValuePair`2<System.__Canon,Int32>>, System.Threading.Tasks.ParallelOptions, System.Action`1<System.Collections.Generic.KeyValuePair`2<System.__Canon,Int32>>, System.Action`2<System.Collections.Generic.KeyValuePair`2<System.__Canon,Int32>,System.Threading.Tasks.ParallelLoopState>, System.Action`3<System.Collections.Generic.KeyValuePair`2<System.__Canon,Int32>,System.Threading.Tasks.ParallelLoopState,Int64>, System.Func`4<System.Collections.Generic.KeyValuePair`2<System.__Canon,Int32>,System.Threading.Tasks.ParallelLoopState,System.__Canon,System.__Canon>, System.Func`5<System.Collections.Generic.KeyValuePair`2<System.__Canon,Int32>,System.Threading.Tasks.ParallelLoopState,Int64,System.__Canon,System.__Canon>, System.Func`1<System.__Canon>, System.Action`1<System.__Canon>) 
    at System.Threading.Tasks.Parallel.ForEachWorker[[System.Collections.Generic.KeyValuePair`2[[System.__Canon, mscorlib, Version=4.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089],[System.Int32, mscorlib, Version=4.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089]], mscorlib, Version=4.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089],[System.__Canon, mscorlib, Version=4.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089]](System.Collections.Generic.IEnumerable`1<System.Collections.Generic.KeyValuePair`2<System.__Canon,Int32>>, System.Threading.Tasks.ParallelOptions, System.Action`1<System.Collections.Generic.KeyValuePair`2<System.__Canon,Int32>>, System.Action`2<System.Collections.Generic.KeyValuePair`2<System.__Canon,Int32>,System.Threading.Tasks.ParallelLoopState>, System.Action`3<System.Collections.Generic.KeyValuePair`2<System.__Canon,Int32>,System.Threading.Tasks.ParallelLoopState,Int64>, System.Func`4<System.Collections.Generic.KeyValuePair`2<System.__Canon,Int32>,System.Threading.Tasks.ParallelLoopState,System.__Canon,System.__Canon>, System.Func`5<System.Collections.Generic.KeyValuePair`2<System.__Canon,Int32>,System.Threading.Tasks.ParallelLoopState,Int64,System.__Canon,System.__Canon>, System.Func`1<System.__Canon>, System.Action`1<System.__Canon>) 
    at System.Threading.Tasks.Parallel.ForEach[[System.Collections.Generic.KeyValuePair`2[[System.__Canon, mscorlib, Version=4.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089],[System.Int32, mscorlib, Version=4.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089]], mscorlib, Version=4.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089]](System.Collections.Generic.IEnumerable`1<System.Collections.Generic.KeyValuePair`2<System.__Canon,Int32>>, System.Threading.Tasks.ParallelOptions, System.Action`1<System.Collections.Generic.KeyValuePair`2<System.__Canon,Int32>>) 
    at Company.Code.Method2(xxx) 
    at System.Threading.Tasks.Parallel+<>c__DisplayClass17_0`1[[System.__Canon, mscorlib, Version=4.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089]].<ForWorker>b__1() 
    at System.Threading.Tasks.Task.InnerInvokeWithArg(System.Threading.Tasks.Task) 
    at System.Threading.Tasks.Task+<>c__DisplayClass176_0.<ExecuteSelfReplicating>b__0(System.Object) 
    at System.Threading.ExecutionContext.RunInternal(System.Threading.ExecutionContext, System.Threading.ContextCallback, System.Object, Boolean) 
    at System.Threading.ExecutionContext.Run(System.Threading.ExecutionContext, System.Threading.ContextCallback, System.Object, Boolean) 
    at System.Threading.Tasks.Task.ExecuteWithThreadLocal(System.Threading.Tasks.Task ByRef) 
    at System.Threading.Tasks.Task.ExecuteEntry(Boolean) 
    at System.Threading.Tasks.ThreadPoolTaskScheduler.TryExecuteTaskInline(System.Threading.Tasks.Task, Boolean) 
    at System.Threading.Tasks.TaskScheduler.TryRunInline(System.Threading.Tasks.Task, Boolean) 
    at System.Threading.Tasks.Task.InternalRunSynchronously(System.Threading.Tasks.TaskScheduler, Boolean) 
    at System.Threading.Tasks.Parallel.ForWorker[[System.__Canon, mscorlib, Version=4.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089]](Int32, Int32, System.Threading.Tasks.ParallelOptions, System.Action`1<Int32>, System.Action`2<Int32,System.Threading.Tasks.ParallelLoopState>, System.Func`4<Int32,System.Threading.Tasks.ParallelLoopState,System.__Canon,System.__Canon>, System.Func`1<System.__Canon>, System.Action`1<System.__Canon>) 
    at System.Threading.Tasks.Parallel.ForEachWorker[[System.__Canon, mscorlib, Version=4.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089],[System.__Canon, mscorlib, Version=4.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089]](System.Collections.Generic.IEnumerable`1<System.__Canon>, System.Threading.Tasks.ParallelOptions, System.Action`1<System.__Canon>, System.Action`2<System.__Canon,System.Threading.Tasks.ParallelLoopState>, System.Action`3<System.__Canon,System.Threading.Tasks.ParallelLoopState,Int64>, System.Func`4<System.__Canon,System.Threading.Tasks.ParallelLoopState,System.__Canon,System.__Canon>, System.Func`5<System.__Canon,System.Threading.Tasks.ParallelLoopState,Int64,System.__Canon,System.__Canon>, System.Func`1<System.__Canon>, System.Action`1<System.__Canon>) 
    at System.Threading.Tasks.Parallel.ForEach[[System.__Canon, mscorlib, Version=4.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089]](System.Collections.Generic.IEnumerable`1<System.__Canon>, System.Threading.Tasks.ParallelOptions, System.Action`1<System.__Canon>) 
    at Company.Code.Method1(xxx) 

Exception Info: System.Reflection.TargetInvocationException 
    at System.RuntimeMethodHandle.InvokeMethod(System.Object, System.Object[], System.Signature, Boolean) 
    at System.Reflection.RuntimeMethodInfo.UnsafeInvokeInternal(System.Object, System.Object[], System.Object[]) 
    at System.Reflection.RuntimeMethodInfo.Invoke(System.Object, System.Reflection.BindingFlags, System.Reflection.Binder, System.Object[], System.Globalization.CultureInfo) 
    at Hangfire.Server.CoreBackgroundJobPerformer.InvokeMethod(Hangfire.Server.PerformContext, System.Object, System.Object[]) 
    at Hangfire.Server.CoreBackgroundJobPerformer.Perform(Hangfire.Server.PerformContext) 
    at Hangfire.Server.BackgroundJobPerformer+<>c__DisplayClass8_0.<PerformJobWithFilters>b__0() 
    at Hangfire.Server.BackgroundJobPerformer.InvokePerformFilter(Hangfire.Server.IServerFilter, Hangfire.Server.PerformingContext, System.Func`1<Hangfire.Server.PerformedContext>) 
    at Hangfire.Server.BackgroundJobPerformer.InvokePerformFilter(Hangfire.Server.IServerFilter, Hangfire.Server.PerformingContext, System.Func`1<Hangfire.Server.PerformedContext>) 
    at Hangfire.Server.BackgroundJobPerformer.PerformJobWithFilters(Hangfire.Server.PerformContext, System.Collections.Generic.IEnumerable`1<Hangfire.Server.IServerFilter>) 
    at Hangfire.Server.BackgroundJobPerformer.Perform(Hangfire.Server.PerformContext) 
    at Hangfire.Server.Worker.PerformJob(Hangfire.Server.BackgroundProcessContext, Hangfire.Storage.IStorageConnection, System.String) 
    at Hangfire.Server.Worker.Execute(Hangfire.Server.BackgroundProcessContext) 
    at Hangfire.Server.AutomaticRetryProcess.Execute(Hangfire.Server.BackgroundProcessContext) 
    at Hangfire.Server.InfiniteLoopProcess.Execute(Hangfire.Server.BackgroundProcessContext) 
    at Hangfire.Server.ServerProcessExtensions.RunProcess(Hangfire.Server.IServerProcess, Hangfire.Server.BackgroundProcessContext) 
    at System.Threading.Tasks.Task.Execute() 
    at System.Threading.ExecutionContext.RunInternal(System.Threading.ExecutionContext, System.Threading.ContextCallback, System.Object, Boolean) 
    at System.Threading.ExecutionContext.Run(System.Threading.ExecutionContext, System.Threading.ContextCallback, System.Object, Boolean) 
    at System.Threading.Tasks.Task.ExecuteWithThreadLocal(System.Threading.Tasks.Task ByRef) 
    at System.Threading.Tasks.Task.ExecuteEntry(Boolean) 
    at System.Threading.ExecutionContext.RunInternal(System.Threading.ExecutionContext, System.Threading.ContextCallback, System.Object, Boolean) 
    at System.Threading.ExecutionContext.Run(System.Threading.ExecutionContext, System.Threading.ContextCallback, System.Object, Boolean) 
    at System.Threading.ExecutionContext.Run(System.Threading.ExecutionContext, System.Threading.ContextCallback, System.Object) 
    at System.Threading.ThreadHelper.ThreadStart(System.Object)

任何人都知道爲什麼會發生這種情況？

來源

2016-09-15 piotrwest

回答

1

我想我可能會意外地找到了這個問題的答案。這沒有得到證實，但值得嘗試。

在整個應用程序的多個線程中，根據線程的需要，我一直在根據不同的值分配不同的ServicePointManager屬性。例如：

Thread A: 
void MakeCallToX { 
    System.Net.ServicePointManager.SecurityProtocol = SecurityProtocolType.Tls12; 
    WebClient.DownloadString("https://x"); 
} 

Thread B: 
void MakeCallToY { 
    System.Net.ServicePointManager.SecurityProtocol = SecurityProtocolType.Tls11; 
    WebClient.DownloadString("https://y"); 
}

可能發生這些方法是並行調用的。 設置System.Net.ServicePointManager屬性（不僅SecurityProtocol）在應用程序啓動似乎是唯一的解決方案。

來源

2017-04-23 05:42:00 piotrwest

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