Sql server 无效操作。连接已关闭
我们正在一个刚刚上线的项目中使用EntityFramework。根据我们的日志,有几个用户正在遭受无效操作。连接已关闭,每天大约发生50次 异常情况如下所示:Sql server 无效操作。连接已关闭,sql-server,entity-framework,unity-container,Sql Server,Entity Framework,Unity Container,我们正在一个刚刚上线的项目中使用EntityFramework。根据我们的日志,有几个用户正在遭受无效操作。连接已关闭,每天大约发生50次 异常情况如下所示: An error occurred while executing the command definition. See the inner exception for details. at System.Data.EntityClient.EntityCommandDefinition.ExecuteStoreCommands
An error occurred while executing the command definition. See the inner exception for details. at System.Data.EntityClient.EntityCommandDefinition.ExecuteStoreCommands(EntityCommand entityCommand, CommandBehavior behavior)
at System.Data.Objects.Internal.ObjectQueryExecutionPlan.Execute[TResultType](ObjectContext context, ObjectParameterCollection parameterValues)
at System.Data.Objects.ObjectQuery`1.GetResults(Nullable`1 forMergeOption)
at System.Data.Objects.ObjectQuery`1.System.Collections.Generic.IEnumerable<T>.GetEnumerator()
at System.Collections.Generic.List`1..ctor(IEnumerable`1 collection)
at System.Linq.Enumerable.ToList[TSource](IEnumerable`1 source)
at xxxx.SelectResultToPeople(IEnumerable`1 result)
at xxxx.GetResult()
at DynamicModule.ns.Wrapped_IPeopleGetter_a853d13914444ca6ab0e016e035520c5.<People_DelegateImplementation>__0(IMethodInvocation inputs, GetNextInterceptionBehaviorDelegate getNext)
Invalid operation. The connection is closed. at System.Data.SqlClient.TdsParserStateObject.ReadSniSyncOverAsync()
at System.Data.SqlClient.TdsParserStateObject.TryReadNetworkPacket()
at System.Data.SqlClient.TdsParserStateObject.TryPrepareBuffer()
at System.Data.SqlClient.TdsParserStateObject.TryReadByte(Byte& value)
at System.Data.SqlClient.TdsParserStateObject.TryPeekByte(Byte& value)
at System.Data.SqlClient.SqlDataReader.TrySetMetaData(_SqlMetaDataSet metaData, Boolean moreInfo)
at System.Data.SqlClient.TdsParser.TryRun(RunBehavior runBehavior, SqlCommand cmdHandler, SqlDataReader dataStream, BulkCopySimpleResultSet bulkCopyHandler, TdsParserStateObject stateObj, Boolean& dataReady)
at System.Data.SqlClient.SqlDataReader.TryCloseInternal(Boolean closeReader)
at System.Data.SqlClient.SqlDataReader.Close()
at System.Data.SqlClient.SqlCommand.FinishExecuteReader(SqlDataReader ds, RunBehavior runBehavior, String resetOptionsString)
at System.Data.SqlClient.SqlCommand.RunExecuteReaderTds(CommandBehavior cmdBehavior, RunBehavior runBehavior, Boolean returnStream, Boolean async, Int32 timeout, Task& task, Boolean asyncWrite)
at System.Data.SqlClient.SqlCommand.RunExecuteReader(CommandBehavior cmdBehavior, RunBehavior runBehavior, Boolean returnStream, String method, TaskCompletionSource`1 completion, Int32 timeout, Task& task, Boolean asyncWrite)
at System.Data.SqlClient.SqlCommand.RunExecuteReader(CommandBehavior cmdBehavior, RunBehavior runBehavior, Boolean returnStream, String method)
at System.Data.SqlClient.SqlCommand.ExecuteReader(CommandBehavior behavior, String method)
at System.Data.SqlClient.SqlCommand.ExecuteDbDataReader(CommandBehavior behavior)
at System.Data.Common.DbCommand.ExecuteReader(CommandBehavior behavior)
at System.Data.EntityClient.EntityCommandDefinition.ExecuteStoreCommands(EntityCommand entityCommand, CommandBehavior behavior)
你知道为什么我们会有紧密的联系吗
谢谢你的帮助 尝试使用?嗯,这是个好主意。我会马上调查,但奇怪的是它是随机发生的。并非此页面上的所有请求都会获得此执行。延迟加载的导航属性似乎不是问题,这些属性不会在任何地方使用,并且表函数返回类型没有任何导航属性
public class PeopleGetter : IPeopleGetter
{
public List<object> GetResult()
{
using (var siteEntities = new SiteEntities())
{
IQueryable<someResultEntity> result =
siteEntities.GetPeopleNames()
.SortBy("Name", "asc")
.Skip(20*query.CurrentPagingPosition)
.Take(20);
List<People> people = SelectResultToPeople(result)
return people;
}
}
private List<People> SelectResultToPeople(IQueryable<someResultEntity> result)
{
return result
.ToList()
.Select(x => new People { })
.ToList();
}
}
public class PerCallContextLifeTimeManager : HierarchicalLifetimeManager
{
private readonly string _key = string.Format("PerCallContextOrRequestLifeTimeManager_{0}", Guid.NewGuid());
public override object GetValue()
{
if (HttpContext.Current != null)
return GetFromHttpContext();
else
return base.GetValue();
}
private object GetFromHttpContext()
{
return HttpContext.Current.Items[_key];
}
public override void SetValue(object newValue)
{
if (HttpContext.Current != null)
SetInHttpContext(newValue);
else
base.SetValue(newValue);
}
private void SetInHttpContext(object newValue)
{
HttpContext.Current.Items.Add(_key, newValue);
}
public override void RemoveValue()
{
}
}