C# WCF：如何将 ServiceThrottlingBehavior 添加到 WCF 服务？

WCF: How do I add a ServiceThrottlingBehavior to a WCF Service?

提问by Andreas Grech

I have the below code for returning back an instance of my WCF Service ServiceClient:

我有以下代码用于返回我的 WCF 服务实例ServiceClient：

    var readerQuotas = new XmlDictionaryReaderQuotas()
    {
        MaxDepth = 6000000,
        MaxStringContentLength = 6000000,
        MaxArrayLength = 6000000,
        MaxBytesPerRead = 6000000,
        MaxNameTableCharCount = 6000000
    };


    var throttlingBehaviour = new ServiceThrottlingBehavior(){MaxConcurrentCalls=500,MaxConcurrentInstances=500,MaxConcurrentSessions = 500}; 
    binding = new WSHttpBinding(SecurityMode.None) {MaxReceivedMessageSize = 6000000, ReaderQuotas = readerQuotas};

    dualBinding = new WSDualHttpBinding(WSDualHttpSecurityMode.None)
                      {MaxReceivedMessageSize = 6000000, ReaderQuotas = readerQuotas};

    endpointAddress = new EndpointAddress("http://localhost:28666/DBInteractionGateway.svc"); 

    return new MusicRepo_DBAccess_ServiceClient(new InstanceContext(instanceContext), dualBinding, endpointAddress);

Lately I was having some trouble with timeouts and so I decided to add a throttling behavior, like such:

最近我在超时方面遇到了一些麻烦，所以我决定添加一个限制行为，如下所示：

    var throttlingBehaviour = new ServiceThrottlingBehavior () {
        MaxConcurrentCalls=500, 
        MaxConcurrentInstances=500,
        MaxConcurrentSessions = 500
    }; 

My question is, where in the above code should I add this throttlingBehaviourto my MusicRepo_DBAccess_ServiceClientinstance?

我的问题是，我应该在上面的代码中的哪个位置将它添加throttlingBehaviour到我的MusicRepo_DBAccess_ServiceClient实例中？

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From some of the examples I found on the web, they are doing something like this:

从我在网上找到的一些例子来看，他们正在做这样的事情：

ServiceHost host = new ServiceHost(typeof(MyService));
ServiceThrottlingBehavior throttleBehavior = new ServiceThrottlingBehavior
{
    MaxConcurrentCalls = 40,
    MaxConcurrentInstances = 20,
    MaxConcurrentSessions = 20,
};
host.Description.Behaviors.Add(throttleBehavior);
host.Open();

Notice that in the above code they are using a ServiceHostwhereas I am not, and they are then opening it (with Open()) whereas I open the MusicRepo_DBAccess_ServiceClientinstance...and this is what got me confused.

请注意，在上面的代码中，他们使用的是 aServiceHost而我不是，然后他们打开它（使用Open()）而我打开MusicRepo_DBAccess_ServiceClient实例......这让我感到困惑。

采纳答案by Ta01

You can specify the behavior in the configuration file afaik, and the generated client will obey, using behaviors.

您可以在配置文件 afaik 中指定行为，生成的客户端将遵守，使用行为。

Some configuration sections excluded for brevity

为简洁起见排除了一些配置部分

<service 
    behaviorConfiguration="throttleThis" />

        <serviceBehaviors>
            <behavior name="throttleThis">
                <serviceMetadata httpGetEnabled="True" />
                <serviceThrottling
                    maxConcurrentCalls="40"
                    maxConcurrentInstances="20"
                    maxConcurrentSessions="20"/>
            </behavior>
        </serviceBehaviors>

回答by ArnonRGO

Throttling is a service side (server) behavior not client side one

节流是一种服务端（服务器）行为，而不是客户端行为

Arnon

阿农

回答by Brian

Can be done in code for those, like me, who configure at runtime.

对于像我这样在运行时配置的人，可以在代码中完成。

vb version:

VB版本：

    Dim stb As New ServiceThrottlingBehavior
    stb.MaxConcurrentSessions = 100
    stb.MaxConcurrentCalls = 100
    stb.MaxConcurrentInstances = 100
    ServiceHost.Description.Behaviors.Add(stb)

c# version:

C# 版本：

    ServiceThrottlingBehavior stb = new ServiceThrottlingBehavior {
        MaxConcurrentSessions = 100,
        MaxConcurrentCalls = 100,
        MaxConcurrentInstances = 100
    };
    ServiceHost.Description.Behaviors.Add(stb);