Mongodb在系统中打开了太多文件

时间：2018-05-17 14:11:50

标签： mongodb asp.net-core-2.0 kestrel-http-server

我们的软件包含：

centos，nginx，kestrel http server，dotnet core（v2.0.8）应用程序使用mongodb（v3.6.7）

kestrel http服务器有时会停止响应，似乎mongodb驱动程序连接的错误就像下面登录的第3行

是什么导致了这个问题？

我已使用此主题将最大打开文件选项配置为640000

https://medium.com/@mshanak/soved-dotnet-core-too-many-open-files-in-system-when-using-postgress-with-entity-framework-c6e30eeff6d1

但没有任何修复，请帮助解决这个问题谢谢大家。

May 17 12:37:36 myserver[14611]: fail: Microsoft.AspNetCore.Server.Kestrel[13]
May 17 12:37:36 myserver[14611]: Connection id "0HLDRQRA00CP4", Request id "0HLDRQRA00CP4:00000001": An unhandled exception was thrown by the application.
May 17 12:37:36 myserver[14611]: MongoDB.Driver.MongoConnectionException: An exception occurred while opening a connection to the server. ---> System.Net.Sockets.SocketException: Too many open files in system
May 17 12:37:36 myserver[14611]: at System.Net.Sockets.Socket..ctor(AddressFamily addressFamily, SocketType socketType, ProtocolType protocolType)
May 17 12:37:36 myserver[14611]: at MongoDB.Driver.Core.Connections.TcpStreamFactory.CreateSocket(EndPoint endPoint)
May 17 12:37:36 myserver[14611]: at MongoDB.Driver.Core.Connections.TcpStreamFactory.<CreateStreamAsync>d__4.MoveNext()
May 17 12:37:36 myserver[14611]: --- End of stack trace from previous location where exception was thrown ---
May 17 12:37:36 myserver[14611]: at System.Runtime.ExceptionServices.ExceptionDispatchInfo.Throw()
May 17 12:37:36 myserver[14611]: at System.Runtime.CompilerServices.TaskAwaiter.HandleNonSuccessAndDebuggerNotification(Task task)
May 17 12:37:36 myserver[14611]: at MongoDB.Driver.Core.Connections.BinaryConnection.<OpenHelperAsync>d__48.MoveNext()
May 17 12:37:36 myserver[14611]: --- End of inner exception stack trace ---
May 17 12:37:36 myserver[14611]: at MongoDB.Driver.Core.Connections.BinaryConnection.<OpenHelperAsync>d__48.MoveNext()
May 17 12:37:36 myserver[14611]: --- End of stack trace from previous location where exception was thrown ---
May 17 12:37:36 myserver[14611]: at System.Runtime.ExceptionServices.ExceptionDispatchInfo.Throw()
May 17 12:37:36 myserver[14611]: at System.Runtime.CompilerServices.TaskAwaiter.HandleNonSuccessAndDebuggerNotification(Task task)
May 17 12:37:36 myserver[14611]: at MongoDB.Driver.Core.Servers.Server.<GetChannelAsync>d__30.MoveNext()
May 17 12:37:36 myserver[14611]: --- End of stack trace from previous location where exception was thrown ---
May 17 12:37:36 myserver[14611]: at System.Runtime.ExceptionServices.ExceptionDispatchInfo.Throw()
May 17 12:37:36 myserver[14611]: at System.Runtime.CompilerServices.TaskAwaiter.HandleNonSuccessAndDebuggerNotification(Task task)
May 17 12:37:36 myserver[14611]: at MongoDB.Driver.Core.Operations.FindOperation`1.<ExecuteAsync>d__111.MoveNext()
May 17 12:37:36 myserver[14611]: --- End of stack trace from previous location where exception was thrown ---
May 17 12:37:36 myserver[14611]: at System.Runtime.ExceptionServices.ExceptionDispatchInfo.Throw()
May 17 12:37:36 myserver[14611]: at System.Runtime.CompilerServices.TaskAwaiter.HandleNonSuccessAndDebuggerNotification(Task task)
May 17 12:37:36 myserver[14611]: at MongoDB.Driver.OperationExecutor.<ExecuteReadOperationAsync>d__3`1.MoveNext()
May 17 12:37:36 myserver[14611]: --- End of stack trace from previous location where exception was thrown ---
May 17 12:37:36 myserver[14611]: at System.Runtime.ExceptionServices.ExceptionDispatchInfo.Throw()
May 17 12:37:36 myserver[14611]: at System.Runtime.CompilerServices.TaskAwaiter.HandleNonSuccessAndDebuggerNotification(Task task)
May 17 12:37:36 myserver[14611]: at MongoDB.Driver.MongoCollectionImpl`1.<ExecuteReadOperationAsync>d__83`1.MoveNext()
May 17 12:37:36 myserver[14611]: --- End of stack trace from previous location where exception was thrown ---
May 17 12:37:36 myserver[14611]: at System.Runtime.ExceptionServices.ExceptionDispatchInfo.Throw()
May 17 12:37:36 myserver[14611]: at System.Runtime.CompilerServices.TaskAwaiter.HandleNonSuccessAndDebuggerNotification(Task task)
May 17 12:37:36 myserver[14611]: at MongoDB.Driver.MongoCollectionImpl`1.<UsingImplicitSessionAsync>d__91`1.MoveNext()
May 17 12:37:36 myserver[14611]: --- End of stack trace from previous location where exception was thrown ---
May 17 12:37:36 myserver[14611]: at System.Runtime.ExceptionServices.ExceptionDispatchInfo.Throw()
May 17 12:37:36 myserver[14611]: at System.Runtime.CompilerServices.TaskAwaiter.HandleNonSuccessAndDebuggerNotification(Task task)
May 17 12:37:36 myserver[14611]: at MongoDB.Driver.IAsyncCursorSourceExtensions.<FirstOrDefaultAsync>d__5`1.MoveNext()
May 17 12:37:36 myserver[14611]: --- End of stack trace from previous location where exception was thrown ---
May 17 12:37:36 myserver[14611]: at System.Runtime.ExceptionServices.ExceptionDispatchInfo.Throw()
May 17 12:37:36 myserver[14611]: at System.Runtime.CompilerServices.TaskAwaiter.HandleNonSuccessAndDebuggerNotification(Task task)
May 17 12:37:36 myserver[14611]: at MYData.UserCollection.<GetByIdAsync>d__2.MoveNext()
May 17 12:37:36 myserver[14611]: --- End of stack trace from previous location where exception was thrown ---
May 17 12:37:36 myserver[14611]: at System.Runtime.ExceptionServices.ExceptionDispatchInfo.Throw()
May 17 12:37:36 myserver[14611]: at System.Runtime.CompilerServices.TaskAwaiter.HandleNonSuccessAndDebuggerNotification(Task task)
May 17 12:37:36 myserver[14611]: at MYAPI.Controllers.PostController.<GetForExplore>d__8.MoveNext()
May 17 12:37:36 myserver[14611]: --- End of stack trace from previous location where exception was thrown ---
May 17 12:37:36 myserver[14611]: at System.Runtime.ExceptionServices.ExceptionDispatchInfo.Throw()
May 17 12:37:36 myserver[14611]: at System.Runtime.CompilerServices.TaskAwaiter.HandleNonSuccessAndDebuggerNotification(Task task)
May 17 12:37:36 myserver[14611]: at System.Runtime.CompilerServices.TaskAwaiter`1.GetResult()
May 17 12:37:36 myserver[14611]: at Microsoft.AspNetCore.Mvc.Internal.ControllerActionInvoker.<InvokeActionMethodAsync>d__12.MoveNext()
May 17 12:37:36 myserver[14611]: --- End of stack trace from previous location where exception was thrown ---
May 17 12:37:36 myserver[14611]: at System.Runtime.ExceptionServices.ExceptionDispatchInfo.Throw()
May 17 12:37:36 myserver[14611]: at System.Runtime.CompilerServices.TaskAwaiter.HandleNonSuccessAndDebuggerNotification(Task task)
May 17 12:37:36 myserver[14611]: at Microsoft.AspNetCore.Mvc.Internal.ControllerActionInvoker.<InvokeNextActionFilterAsync>d__10.MoveNext()
May 17 12:37:36 myserver[14611]: --- End of stack trace from previous location where exception was thrown ---
May 17 12:37:36 myserver[14611]: at System.Runtime.ExceptionServices.ExceptionDispatchInfo.Throw()
May 17 12:37:36 myserver[14611]: at Microsoft.AspNetCore.Mvc.Internal.ControllerActionInvoker.Rethrow(ActionExecutedContext context)
May 17 12:37:36 myserver[14611]: at Microsoft.AspNetCore.Mvc.Internal.ControllerActionInvoker.Next(State& next, Scope& scope, Object& state, Boolean& isCompleted)
May 17 12:37:36 myserver[14611]: at Microsoft.AspNetCore.Mvc.Internal.ControllerActionInvoker.<InvokeInnerFilterAsync>d__14.MoveNext()
May 17 12:37:36 myserver[14611]: --- End of stack trace from previous location where exception was thrown ---
May 17 12:37:36 myserver[14611]: at System.Runtime.ExceptionServices.ExceptionDispatchInfo.Throw()
May 17 12:37:36 myserver[14611]: at System.Runtime.CompilerServices.TaskAwaiter.HandleNonSuccessAndDebuggerNotification(Task task)
May 17 12:37:36 myserver[14611]: at Microsoft.AspNetCore.Mvc.Internal.ResourceInvoker.<InvokeNextResourceFilter>d__22.MoveNext()
May 17 12:37:36 myserver[14611]: --- End of stack trace from previous location where exception was thrown ---
May 17 12:37:36 myserver[14611]: at System.Runtime.ExceptionServices.ExceptionDispatchInfo.Throw()
May 17 12:37:36 myserver[14611]: at Microsoft.AspNetCore.Mvc.Internal.ResourceInvoker.Rethrow(ResourceExecutedContext context)
May 17 12:37:36 myserver[14611]: at Microsoft.AspNetCore.Mvc.Internal.ResourceInvoker.Next(State& next, Scope& scope, Object& state, Boolean& isCompleted)
May 17 12:37:36 myserver[14611]: at Microsoft.AspNetCore.Mvc.Internal.ResourceInvoker.<InvokeFilterPipelineAsync>d__17.MoveNext()
May 17 12:37:36 myserver[14611]: --- End of stack trace from previous location where exception was thrown ---
May 17 12:37:36 myserver[14611]: at System.Runtime.ExceptionServices.ExceptionDispatchInfo.Throw()
May 17 12:37:36 myserver[14611]: at System.Runtime.CompilerServices.TaskAwaiter.HandleNonSuccessAndDebuggerNotification(Task task)
May 17 12:37:36 myserver[14611]: at Microsoft.AspNetCore.Mvc.Internal.ResourceInvoker.<InvokeAsync>d__15.MoveNext()
May 17 12:37:36 myserver[14611]: --- End of stack trace from previous location where exception was thrown ---
May 17 12:37:36 myserver[14611]: at System.Runtime.ExceptionServices.ExceptionDispatchInfo.Throw()
May 17 12:37:36 myserver[14611]: at System.Runtime.CompilerServices.TaskAwaiter.HandleNonSuccessAndDebuggerNotification(Task task)
May 17 12:37:36 myserver[14611]: at Microsoft.AspNetCore.Builder.RouterMiddleware.<Invoke>d__4.MoveNext()
May 17 12:37:36 myserver[14611]: --- End of stack trace from previous location where exception was thrown ---
May 17 12:37:36 myserver[14611]: at System.Runtime.ExceptionServices.ExceptionDispatchInfo.Throw()
May 17 12:37:36 myserver[14611]: at System.Runtime.CompilerServices.TaskAwaiter.HandleNonSuccessAndDebuggerNotification(Task task)
May 17 12:37:36 myserver[14611]: at Microsoft.AspNetCore.Authentication.AuthenticationMiddleware.<Invoke>d__6.MoveNext()
May 17 12:37:36 myserver[14611]: --- End of stack trace from previous location where exception was thrown ---
May 17 12:37:36 myserver[14611]: at System.Runtime.ExceptionServices.ExceptionDispatchInfo.Throw()
May 17 12:37:36 myserver[14611]: at System.Runtime.CompilerServices.TaskAwaiter.HandleNonSuccessAndDebuggerNotification(Task task)
May 17 12:37:36 myserver[14611]: at Microsoft.AspNetCore.Hosting.Internal.RequestServicesContainerMiddleware.<Invoke>d__3.MoveNext()
May 17 12:37:36 myserver[14611]: --- End of stack trace from previous location where exception was thrown ---
May 17 12:37:36 myserver[14611]: at System.Runtime.ExceptionServices.ExceptionDispatchInfo.Throw()
May 17 12:37:36 myserver[14611]: at System.Runtime.CompilerServices.TaskAwaiter.HandleNonSuccessAndDebuggerNotification(Task task)
May 17 12:37:36 myserver[14611]: at Microsoft.AspNetCore.Server.Kestrel.Core.Internal.Http.Frame`1.<ProcessRequestsAsync>d__2.MoveNext()

1 个答案:

答案 0 :(得分：0)

如果您使用的是CentOS 6或更高版本，则可能需要遵循 以下说明。

  

红帽企业Linux和CentOS 6存在最大的流程限制   1024覆盖ulimit设置。创建一个名为的文件   /etc/security/limits.d/99-mongodb-nproc.conf使用新的软nproc和   硬nproc值以增加进程限制。看到   以/etc/security/limits.d/90-nproc.conf文件为例

您可以找到有关ulimit设置的更多详细信息here

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