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[英]WCF Timeout - WSDualHttpBinding, How to set OperationTimeout
[英]wcf wsdualhttpbinding timeout problem
請幫我!!!
我正在嘗試構建一個使用回調合同的應用程序。我的應用程序在同一台機器上的客戶端和服務器上都可以正常工作,但是當我嘗試從其他機器訪問服務時出現異常超時(操作 din 內未完成分配的超時)。客戶端讀取一些值從服務器上的數據庫中拋出服務。我不知道我的錯誤在哪里。我試圖將客戶端放在虛擬機中,以及服務(和數據庫) 在真機上。
這是我的服務器配置文件:
<binding name="TrainService" closeTimeout="00:02:00" openTimeout="00:02:00"
receiveTimeout="00:10:00" sendTimeout="00:02:00" bypassProxyOnLocal="false"
transactionFlow="false" hostNameComparisonMode="StrongWildcard"
maxBufferPoolSize="524288" maxReceivedMessageSize="65536"
messageEncoding="Text" textEncoding="utf-8" useDefaultWebProxy="true">
<readerQuotas maxDepth="32" maxStringContentLength="8192" maxArrayLength="16384"
maxBytesPerRead="4096" maxNameTableCharCount="16384" />
<reliableSession ordered="true" inactivityTimeout="00:10:00" />
<security mode="None">
<message clientCredentialType="None" negotiateServiceCredential="true"
algorithmSuite="Default" />
</security>
</binding>
</wsDualHttpBinding>
<wsHttpBinding>
<binding name="WSHttpBinding_ITrainService" closeTimeout="00:02:00"
openTimeout="00:02:00" receiveTimeout="00:10:00" sendTimeout="00:02:00"
bypassProxyOnLocal="false" transactionFlow="false" hostNameComparisonMode="StrongWildcard"
maxBufferPoolSize="524288" maxReceivedMessageSize="65536"
messageEncoding="Text" textEncoding="utf-8" useDefaultWebProxy="true"
allowCookies="false">
<readerQuotas maxDepth="32" maxStringContentLength="8192" maxArrayLength="16384"
maxBytesPerRead="4096" maxNameTableCharCount="16384" />
<reliableSession ordered="true" inactivityTimeout="00:10:00"
enabled="false" />
<security mode="None">
<transport clientCredentialType="None" proxyCredentialType="None"
realm="" />
<message clientCredentialType="None" negotiateServiceCredential="true"
algorithmSuite="Default" />
</security>
</binding>
</wsHttpBinding>
</bindings>
<client>
<endpoint address="http://localhost:8732/Design_Time_Addresses/WCFandEFService/TrainService/"
binding="wsHttpBinding" bindingConfiguration="WSHttpBinding_ITrainService"
contract="TrainServiceRef.ITrainService" name="WSHttpBinding_ITrainService">
<identity>
<dns value="localhost" />
</identity>
</endpoint>
<endpoint address="net.tcp://localhost:8080/TcpService" binding="netTcpBinding"
contract="TrainServiceRef.ITrainService" name="NetTcpBinding_ITrainService" />
<endpoint address="http://localhost:8082/InterlockingService/Host/line"
binding="wsDualHttpBinding" bindingConfiguration="LineService"
contract="InterlockingServiceReference.ILineService" name="LineService">
<identity>
<userPrincipalName value="Romina-PC\Romina" />
</identity>
</endpoint>
<endpoint address="http://localhost:8082/InterlockingService/Host/trains"
binding="wsDualHttpBinding" bindingConfiguration="TrainService"
contract="InterlockingServiceReference.ITrainService" name="TrainService">
<identity>
<userPrincipalName value="Romina-PC\Romina" />
</identity>
</endpoint>
</client>
</system.serviceModel>
我的客戶端配置文件:
-->
<binding name="TrainService" closeTimeout="00:01:00" openTimeout="00:01:00"
receiveTimeout="00:10:00" sendTimeout="00:01:00" bypassProxyOnLocal="false"
transactionFlow="false" hostNameComparisonMode="StrongWildcard"
maxBufferPoolSize="52428800" maxReceivedMessageSize="6553600"
messageEncoding="Text" textEncoding="utf-8" useDefaultWebProxy="true">
<readerQuotas maxDepth="32" maxStringContentLength="8192" maxArrayLength="1638400"
maxBytesPerRead="4096" maxNameTableCharCount="1638400" />
<reliableSession ordered="true" inactivityTimeout="00:10:00" />
<security mode="None">
<!--<message clientCredentialType="None" negotiateServiceCredential="true"
algorithmSuite="Default" />-->
</security>
</binding>
</wsDualHttpBinding>
</bindings>
<client>
<endpoint address="http://localhost:8082/InterlockingService/Host/line"
binding="wsDualHttpBinding" bindingConfiguration="LineService"
contract="InterlockingServiceRef.ILineService" name="LineService">
<identity>
<userPrincipalName value="Romina-PC\Romina" />
</identity>
</endpoint>
<endpoint address="http://localhost:8082/InterlockingService/Host/trains"
binding="wsDualHttpBinding" bindingConfiguration="TrainService"
contract="InterlockingServiceRef.ITrainService" name="TrainService">
<identity>
<userPrincipalName value="Romina-PC\Romina" />
</identity>
</endpoint>
</client>
</system.serviceModel>
謝謝你。
這些是合同: public interface ITrainServiceCallBack { [OperationContract (IsOneWay=true)] void OnTrainChangeState(TrainData train); }
//[ServiceContract(Name = "LineService", CallbackContract = typeof(ILineServiceCallBack))]
[ServiceContract(CallbackContract = typeof(ITrainServiceCallBack))]
public interface ITrainService
{
[OperationContract]
TrainData GetTrainData(string trainName);
[OperationContract]
bool ChangeTrainState_bool(ref TrainData train);
[OperationContract]
void ChangeTrainState(ref Trains_Detail train);
[OperationContract]
bool SubscribeToTrainChangeEvent();
[OperationContract]
bool UnSubscribeFromTrainChangeEvent();
[OperationContract]
TrainData TranslateTrainEntityToTrainData(Trains_Detail trainEntity);
[OperationContract]
IEnumerable<Trains_Detail> GetTrains();
[OperationContract]
IEnumerable<Trains_Detail> GetTrains_ByStation(int Statie_plecare, int Statie_sosire);
}
方法實現:
使用系統; 使用 System.Collections.Generic; 使用 System.Linq; 使用 System.Runtime.Serialization; 使用 System.ServiceModel; 使用 System.Text; 使用 System.Data;
namespace WCFandEFService { // 注意:您可以使用“重構”菜單上的“重命名”命令在代碼和配置文件中同時更改 class 名稱“ProductService”。 //[ServiceBehavior(ConcurrencyMode = ConcurrencyMode.Multiple)]
public partial class InterlockingService : ITrainService
{
static List<ITrainServiceCallBack> subscribers_train = new List<ITrainServiceCallBack>();
public bool TrainExists(string nrTren, InterlockingEntities database)
{
// Check to see whether the specified product exists in the database
int numTrain = (from t in database.Trains_Details
where string.Equals(t.Nr_tren, nrTren)
select t).Count();
return numTrain > 0;
}
public TrainData TranslateTrainEntityToTrainData(Trains_Detail trainEntity)
{
TrainData train = new TrainData();
train.nrTren=trainEntity.Nr_tren;
train.ora_Plecare= trainEntity.Ora_plecare;
train.ora_Sosire=trainEntity.Ora_sosire;
train.statie_Plecare=trainEntity.Statie_plecare;
train.statie_Sosire=trainEntity.Statie_sosire;
train.rang=trainEntity.Rang;
train.observatii=trainEntity.Observatii;
train.RowVersion=trainEntity.RowVersion;
return train;
}
#region ILineService Members
public IEnumerable<Trains_Detail> GetTrains()
{
InterlockingEntities context = new InterlockingEntities();
IEnumerable<Trains_Detail> result =
(from t in context.Trains_Details
//where l.Station == station
select t);
return result;
}
public IEnumerable<Trains_Detail> GetTrains_ByStation(int Statie_plecare,int Statie_sosire)
{
InterlockingEntities context = new InterlockingEntities();
IEnumerable<Trains_Detail> result =
(from t in context.Trains_Details
where t.Statie_plecare==Statie_plecare && t.Statie_sosire==Statie_sosire
select t);
return result;
}
public TrainData GetTrainData(string trainNr)
{
InterlockingEntities context = new InterlockingEntities();
Trains_Detail trainInDB =
(from t
in context.Trains_Details
where String.Compare(t.Nr_tren, trainNr) == 0
select t).FirstOrDefault();
if (trainInDB == null)
{
throw new Exception("No line cu numele " + trainInDB.Nr_tren);
}
context.Detach(trainInDB);
return TranslateTrainEntityToTrainData(trainInDB);
}
public bool ChangeTrainState_bool(ref TrainData train)
{
InterlockingEntities context = new InterlockingEntities();
String trainName = train.nrTren;
//int lineStation = line.station;
Trains_Detail trainInDB =
(from t
in context.Trains_Details
where String.Compare(t.Nr_tren, trainName) == 0
select t).FirstOrDefault();
if (trainInDB == null)
{
throw new Exception("No train cu numele " + trainInDB.Nr_tren);
}
context.Detach(trainInDB);
trainInDB.Nr_tren = train.nrTren;
trainInDB.Ora_plecare=train.ora_Plecare;
trainInDB.Ora_sosire=train.ora_Sosire;
trainInDB.Statie_plecare=train.statie_Plecare;
trainInDB.Statie_sosire=train.statie_Sosire;
trainInDB.Rang=train.rang;
trainInDB.RowVersion = train.RowVersion;
context.Attach(trainInDB);
context.ObjectStateManager.ChangeObjectState(trainInDB, System.Data.EntityState.Modified);
context.SaveChanges();
train.RowVersion = trainInDB.RowVersion;
context.Dispose();
raiseTrainChangeState(TranslateTrainEntityToTrainData(trainInDB));
return true;
}
public void ChangeTrainState(ref Trains_Detail train)
{
using (var context = new InterlockingEntities())
{
context.Attach(train);
context.ObjectStateManager.ChangeObjectState(train, EntityState.Modified);
context.SaveChanges();
}
}
}
public bool SubscribeToTrainChangeEvent()
{
try
{
ITrainServiceCallBack callback = OperationContext.Current.GetCallbackChannel<ITrainServiceCallBack>();
if (!subscribers_train.Contains(callback))
{
subscribers_train.Add(callback);
}
return true;
}
catch (Exception)
{
return false;
}
}
public bool UnSubscribeFromTrainChangeEvent()
{
try
{
ITrainServiceCallBack callback = OperationContext.Current.GetCallbackChannel<ITrainServiceCallBack>();
subscribers_train.Remove(callback);
return true;
}
catch (Exception)
{
return false;
}
}
#endregion
private void raiseTrainChangeState(TrainData train)
{
subscribers_train.AsParallel().ForAll(callback =>
{
if (((ICommunicationObject)callback).State == CommunicationState.Opened)
{
callback.OnTrainChangeState(train);
}
else
{
subscribers_train.Remove(callback);
}
});
}
}
}
回調合同中的操作合同應標記為 IsOneWay = true,並且應返回無效 - 不是服務中的所有操作合同。
此外,我在 NetTcpBinding 上使用雙工合同時遇到了類似的問題。 我通過在代理上設置 OperationTimeout 值(在我的情況下為 5 分鍾)解決了這個問題。 在創建通道時,我通過將通道轉換為客戶端上的 IContextChannel 接口以編程方式設置它。 您應該可以在客戶端配置文件中執行相同的操作。
我的代碼:
((IContextChannel)myChannel).OperationTimeout = new Timespan(0, 5, 0);
您在客戶端和服務器中的端點地址將“localhost”指定為機器名稱。 如果它們在不同的機器上,客戶端將無法與服務通信。 嘗試將其更改為服務器所在的實際機器名稱。
更新:這是一個 WSDualHttpBinding 示例,它在合約和回調合約上都使用非單向操作。 WSDualHttpBinding不要求回調契約上的操作是一種方式。 PollingDuplexHttpBinding(用於 Silverlight)確實如此,但這是另一回事。
using System;
using System.IO;
using System.Reflection;
using System.ServiceModel;
using System.Threading;
public class StackOverflow_6216605_751090
{
[ServiceContract(CallbackContract = typeof(ITestCallback))]
public interface ITest
{
[OperationContract]
int Add(int x, int y);
[OperationContract]
void CallMe(int numberOfTimes);
}
[ServiceContract]
public interface ITestCallback
{
[OperationContract]
string Hello(string name);
}
[ServiceBehavior(ConcurrencyMode = ConcurrencyMode.Multiple)]
public class Service : ITest
{
public int Add(int x, int y)
{
Console.WriteLine("In a Request/Reply operation on server: {0} + {1}", x, y);
return x + y;
}
public void CallMe(int numberOfTimes)
{
Console.WriteLine("In another request/reply operation on server, which will call the client.");
ITestCallback callback = OperationContext.Current.GetCallbackChannel<ITestCallback>();
ThreadPool.QueueUserWorkItem(delegate
{
for (int i = 0; i < numberOfTimes; i++)
{
Console.WriteLine("Received from client: {0}", callback.Hello("Server"));
}
});
}
}
[CallbackBehavior(ConcurrencyMode = ConcurrencyMode.Multiple)]
public class ClientCallback : ITestCallback
{
static int count = 0;
public string Hello(string name)
{
Console.WriteLine("In a client operation, name = {0}", name);
return string.Format("[{0}] Hello, {1}", ++count, name);
}
}
static void PrintUsage()
{
string programName = Path.GetFileName(Assembly.GetEntryAssembly().CodeBase);
Console.WriteLine("Usage: {0} <options>", programName);
Console.WriteLine("Examples:");
Console.WriteLine(" Starting the server: {0} -server", programName);
Console.WriteLine(" Starting the client: {0} -client <serverMachineName>", programName);
}
public static void Main(string[] args)
{
if (args.Length < 1)
{
PrintUsage();
return;
}
if (args[0].Equals("-server", StringComparison.OrdinalIgnoreCase))
{
string serviceAddress = "http://" + Environment.MachineName + ":8000/Service";
ServiceHost host = new ServiceHost(typeof(Service), new Uri(serviceAddress));
host.AddServiceEndpoint(typeof(ITest), new WSDualHttpBinding(WSDualHttpSecurityMode.None), "");
host.Open();
Console.WriteLine("Host opened, press ENTER to close");
Console.ReadLine();
host.Close();
}
else if (args.Length > 1 && args[0].Equals("-client", StringComparison.OrdinalIgnoreCase))
{
string serviceAddress = "http://" + args[1] + ":8000/Service";
ClientCallback clientCallback = new ClientCallback();
DuplexChannelFactory<ITest> factory = new DuplexChannelFactory<ITest>(
clientCallback,
new WSDualHttpBinding(WSDualHttpSecurityMode.None),
new EndpointAddress(serviceAddress));
ITest proxy = factory.CreateChannel();
Console.WriteLine("Simple Request/Reply: {0}", proxy.Add(3, 4));
Console.WriteLine("Now calling an operation on the server which will cause callbacks");
proxy.CallMe(10);
Console.WriteLine("Press ENTER to close");
Console.ReadLine();
}
else
{
PrintUsage();
}
}
}
檢查您是否已將運營合同標記為一種方式。 通常在雙 http 綁定中超時,人們無法將合同標記為一種方式。
[OperationContract(IsOneWay = true)]
編輯
請在服務合同的行為中加入以下行。
[ServiceBehavior(ConcurrencyMode = ConcurrencyMode.Multiple)]
供我們參考,請考慮發布您的服務合同結構和運營合同的實施。
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