Sql异常使用.net 4和EF

Question

我们正在使用.net 4 MVC2与EF和Sql Server 2005.

对于某些请求,它很少发生,并且只有当我们进行搜索时,这是通过映射到执行全文搜索的存储过程的类实现的,我们得到异常:

[SqlException (0x80131904): Timeout expired.  The timeout period elapsed prior to completion of the operation or the server is not responding.]
   System.Data.SqlClient.SqlConnection.OnError(SqlException exception, Boolean breakConnection) +2030802
   System.Data.SqlClient.SqlInternalConnection.OnError(SqlException exception, Boolean breakConnection) +5009584
   System.Data.SqlClient.TdsParser.ThrowExceptionAndWarning() +234
   System.Data.SqlClient.TdsParser.Run(RunBehavior runBehavior, SqlCommand cmdHandler, SqlDataReader dataStream, BulkCopySimpleResultSet bulkCopyHandler, TdsParserStateObject stateObj) +2275
   System.Data.SqlClient.SqlDataReader.ConsumeMetaData() +33
   System.Data.SqlClient.SqlDataReader.get_MetaData() +86
   System.Data.SqlClient.SqlCommand.FinishExecuteReader(SqlDataReader ds, RunBehavior runBehavior, String resetOptionsString) +311
   System.Data.SqlClient.SqlCommand.RunExecuteReaderTds(CommandBehavior cmdBehavior, RunBehavior runBehavior, Boolean returnStream, Boolean async) +987
   System.Data.SqlClient.SqlCommand.RunExecuteReader(CommandBehavior cmdBehavior, RunBehavior runBehavior, Boolean returnStream, String method, DbAsyncResult result) +162
   System.Data.SqlClient.SqlCommand.RunExecuteReader(CommandBehavior cmdBehavior, RunBehavior runBehavior, Boolean returnStream, String method) +32
   System.Data.SqlClient.SqlCommand.ExecuteReader(CommandBehavior behavior, String method) +141
   System.Data.SqlClient.SqlCommand.ExecuteDbDataReader(CommandBehavior behavior) +12
   System.Data.Common.DbCommand.ExecuteReader(CommandBehavior behavior) +10
   System.Data.EntityClient.EntityCommandDefinition.ExecuteStoreCommands(EntityCommand entityCommand, CommandBehavior behavior) +443

[EntityCommandExecutionException: An error occurred while executing the command definition. See the inner exception for details.]
   System.Data.EntityClient.EntityCommandDefinition.ExecuteStoreCommands(EntityCommand entityCommand, CommandBehavior behavior) +479
   System.Data.Objects.ObjectContext.CreateFunctionObjectResult(EntityCommand entityCommand, EntitySet entitySet, EdmType edmType, MergeOption mergeOption) +182
   System.Data.Objects.ObjectContext.ExecuteFunction(String functionName, MergeOption mergeOption, ObjectParameter[] parameters) +218
   System.Data.Objects.ObjectContext.ExecuteFunction(String functionName, ObjectParameter[] parameters) +53

如果在错误发生后(具有相同或不同的术语)重试搜索,则它会定期运行.

任何建议都很受欢迎

谢谢

--MB

思考1:异常似乎发生在连接到sql server之后,并且在执行存储过程时,我是否正确？如果是这种情况,那么我需要扩展查询执行超时而不是连接超时？这可能吗,在哪里？

思考2​​:也许我错了,这可能是游泳池中的陈旧连接？在Java世界中,您可以在应用程序获取之前传递在连接上执行的sql,以确保连接已打开并正常工作？这可能导致这种情况.我无法在http://msdn.microsoft.com/en-us/library/system.data.sqlclient.sqlconnection.connectionstring.aspx中找到这样的选项.

想到3:我迷路了:)

Answer 1

您可以尝试设置ObjectContext.CommandTimeout属性:

获取或设置所有对象上下文操作的超时值(以秒为单位).空值表示将使用基础提供程序的默认值.