我们正在使用Entity框架来执行CRUD操作。我们观察到非常罕见的情况，对于来自API的第一个请求，我们得到如下错误..但是在每个其他请求之后它工作正常。请帮帮我
{"Message":"An error has occurred.","ExceptionMessage":"An error was reported while committing a database transaction but it could not be determined whether the transaction succeeded or failed on the database server. See the inner exception and http://go.microsoft.com/fwlink/?LinkId=313468 for more information.","ExceptionType":"System.Data.Entity.Infrastructure.CommitFailedException","StackTrace":" at System.Data.Entity.Infrastructure.Interception.InternalDispatcher 1.Dispatch [TTarget，TInterceptionContext]（TTarget目标，Action 2 operation, TInterceptionContext interceptionContext, Action 3执行，Action 3 executed)\r\n at System.Data.Entity.Infrastructure.Interception.DbTransactionDispatcher.Commit(DbTransaction transaction, DbInterceptionContext interceptionContext)\r\n at System.Data.Entity.Core.EntityClient.EntityTransaction.Commit()\r\n at System.Data.Entity.Core.Objects.ObjectContext.ExecuteInTransaction[T](Func 1 func，IDbExecutionStrategy executionStrategy，Boolean startLocalTransaction，Boolean releaseConnectionOnSuccess）\ r \ n在System.Data.Entity.Core.Objects.ObjectContext.SaveChangesToStore（SaveOptions选项，IDbExecutionStrategy executionStrategy，Boolean startLocalTransaction）\ r \ n在System.Data.Entity.Core.Objects.ObjectContext。＆lt;＆gt; c__DisplayClass2a.b__27（ ）\ r \ n在System.Data.Entity.SqlServer.DefaultSqlExecutionStrategy.Execute [TResult]（Func 1 operation)\r\n at System.Data.Entity.Core.Objects.ObjectContext.SaveChangesInternal(SaveOptions options, Boolean executeInExistingTransaction)\r\n at System.Data.Entity.Core.Objects.ObjectContext.SaveChanges(SaveOptions options)\r\n at System.Data.Entity.Internal.InternalContext.SaveChanges()\r\n at System.Data.Entity.Internal.LazyInternalContext.SaveChanges()\r\n at System.Data.Entity.DbContext.SaveChanges()\r\n at SeritiApp.Data.UnitOfWork.MasterUnitOfWork.Save() in E:\\DevelopmentSpace\Web App\\App\\App.Data\\UnitOfWork\\MasterUnitOfWork.cs:line 158\r\n at SeritiAppMVC.Services.SeritiMasterServices.CreateAPIErrorLogEnrty(ApiLogEntryEntity apiLogEntryEntity)\r\n at SeritiAppMVC.WebAPI.Utils.ApiLogHandler.<>c__DisplayClass5_1.<SendAsync>b__1(Task 1任务）\ r \ n在System.Threading.Tasks.ContinuationResultTaskFromResultTask 2.InnerInvoke()\r\n at System.Threading.Tasks.Task.Execute()\r\n--- End of stack trace from previous location where exception was thrown ---\r\n at System.Runtime.CompilerServices.TaskAwaiter.ThrowForNonSuccess(Task task)\r\n at System.Runtime.CompilerServices.TaskAwaiter.HandleNonSuccessAndDebuggerNotification(Task task)\r\n at SeritiAppMVC.WebAPI.Utils.ApiLogHandler.<SendAsync>d__5.MoveNext()\r\n--- End of stack trace from previous location where exception was thrown ---\r\n at System.Runtime.CompilerServices.TaskAwaiter.ThrowForNonSuccess(Task task)\r\n at System.Runtime.CompilerServices.TaskAwaiter.HandleNonSuccessAndDebuggerNotification(Task task)\r\n at System.Web.Http.Owin.PassiveAuthenticationMessageHandler.<SendAsync>d__0.MoveNext()\r\n--- End of stack trace from previous location where exception was thrown ---\r\n at System.Runtime.CompilerServices.TaskAwaiter.ThrowForNonSuccess(Task task)\r\n at System.Runtime.CompilerServices.TaskAwaiter.HandleNonSuccessAndDebuggerNotification(Task task)\r\n at System.Web.Http.HttpServer.<SendAsync>d__0.MoveNext()","InnerException":{"Message":"An error has occurred.","ExceptionMessage":"Execution Timeout Expired. The timeout period elapsed prior to completion of the operation or the server is not responding.","ExceptionType":"System.Data.SqlClient.SqlException","StackTrace":" at System.Data.SqlClient.SqlInternalConnection.OnError(SqlException exception, Boolean breakConnection, Action 1 wrapCloseInAction） \ r \ n在System.Data.SqlClient.TdsParser.ThrowExceptionAndWarning（TdsParserStateObject stateObj，布尔callerHasConnectionLock，布尔asyncClose个）\ r \ n在System.Data.SqlClient.TdsParserStateObject.ReadSniError（TdsParserStateObject stateObj，UInt32的误差）\ r \ n在System.Data.SqlClient.TdsParserStateObject.ReadSniSyncOverAsync（个）\ r \ n System.Data.SqlClient.TdsParserStateObject.TryReadNetworkPacket（）\ r \ n at System.Data.SqlClient.TdsParserStateObject.TryPrepareBuffer（）\ r \ n在System.Data.SqlClient.TdsParserStateObject.TryReadByte（Byte＆amp;值）\ r \ n在System.Data.SqlClient.TdsParser.TryRun（RunBehavior runBehavior，SqlCommand cmdHandler，SqlDataReader dataStream，BulkCopySimpleResultSet bulkCopyHandler，TdsParserStateObject stateObj，Boolean＆amp; dataReady）\ r \ n在System.Data.SqlClient.TdsParser.Run （runBehavior runBehavior，SqlCommand的cmdHandler，SqlDataReader的数据流，BulkCopySimpleResultSet bulkCopyHandler，TdsParserStateObject stateObj个）\ r \ n在System.Data.SqlClient.TdsParser.TdsExecuteTransactionManagerRequest（字节[]缓冲液，TransactionManagerRequestType请求，字符串transactionName，TransactionManagerIsolationLevel ISOLEVEL，的Int32超时，SqlInternalTransaction交易，TdsParserStateObject stateObj，Boolean isDelegateControlRequest）\ r \ n在System.Data.SqlClient.SqlInternalConnectionTds.ExecuteTransactionYukon（TransactionRequest transactionRequest，String transactionName，IsolationLevel iso，SqlInternalTransaction internalTransaction，Boolean isDelegateControlRequest）\ r \ n在System.Data.SqlClien t.SqlInternalConnectionTds.ExecuteTransaction（TransactionRequest transactionRequest，String name，IsolationLevel iso，SqlInternalTransaction internalTransaction，Boolean isDelegateControlRequest）\ r \ n在System.Data.SqlClient.SqlInternalTransaction.Commit（）\ r \ n，位于System.Data.SqlClient.SqlTransaction。在系统的System.Data.Entity.Infrastructure.Interception.DbTransactionDispatcher.b__c（DbTransaction t，DbTransactionInterceptionContext c）\ r \ n的Glimpse.Ado.AlternateType.GlimpseDbTransaction.Commit（）\ r \ n中提交（）\ r \ n .Data.Entity.Infrastructure.Interception.InternalDispatcher 1.Dispatch[TTarget,TInterceptionContext](TTarget target, Action 2操作，TInterceptionContext interceptionContext，Action 3 executing, Action 3执行）“，”InnerException“：{”消息“：”发生了错误。“，” ExceptionMessage“：”等待操作超时“，”ExceptionType“：”System.ComponentModel.Win32Exception“，”StackTrace“：null}}}
`