WCF RIA 通过 Net.TCP 绑定？
我正在尝试提高 Silverlight 4 WCF RIA 应用程序的性能。由于它仅供 Intranet 使用，因此我认为从默认的二进制 HTTP 绑定切换到 Net.TCP 绑定可能会稍微提高性能。
然而，我很难运行一个简单的概念验证应用程序。我已经：
- 将 conecpt 应用程序的证明从 Cassini 切换到 IIS (7)
- 在 IIS 上添加了适当的绑定并启用了协议
- 将 clientaccesspolicy.xml 文件添加到我的 IIS 根
现在，当我创建如下上下文时：
var context = new DomainService1(
new Uri(
"net.tcp://localhost:4502/BusinessApplication/BusinessApplication2.Web/ClientBin/BusinessApplication2-Web-DomainService1.svc"));
... 我得到以下错误：
The provided URI scheme 'net.tcp' is invalid; expected 'http'. Parameter name: via
现在我很困惑。据我所知，问题是由自动生成的 WCF RIA 代码创建的客户端需要被告知它要使用 Net.TCP 端点，但我不确定如何做到这一点。
我找到了大量解释如何通过 Net.TCP 获取 WCF 服务的博客文章，但我没有找到一篇讨论 WCF RIA 的文章，而且我也找不到任何官方文档。所有这些解释都涉及对 web.config 文件的更改，这些更改似乎不适合 WCF RIA 应用程序。
有人可以向我解释一下如何进行此配置，或者向我指出一些文档吗？
I am trying to improve the performance of a Silverlight 4 WCF RIA application. As it's for intranet use only, I figured switching from the default binary HTTP binding to the Net.TCP binding might improve performance a bit.
However, I am having a hard time just getting a simple proof of concept application running. I have:
- switched the proof of conecpt app from Cassini to IIS (7)
- added the appropriate bindings and enabled protocols on IIS
- added a clientaccesspolicy.xml file to my IIS root
Now, when I create a context like so:
var context = new DomainService1(
new Uri(
"net.tcp://localhost:4502/BusinessApplication/BusinessApplication2.Web/ClientBin/BusinessApplication2-Web-DomainService1.svc"));
... I get the following error:
The provided URI scheme 'net.tcp' is invalid; expected 'http'. Parameter name: via
Now I'm stumped. As far as I can tell, the problem is that the client being created by the auto-generated WCF RIA code needs to be told that it's to use a Net.TCP endpoint, but I'm unsure how to do that.
I've found plenty of blog posts explaining how to get WCF services going over Net.TCP, but I haven't found a single one talking about WCF RIA, and I can't find any offical documentation either. All of those explanations involve changes to the web.config file that seem unsuited to a WCF RIA app.
Could some one please either explain to me how to get this configured, or point me at some documentation?
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评论（1）
WCF RIA 服务依赖于 HttpContext，而 Net.TCP 绑定不提供该服务。
至于性能问题，您能详细说明一下吗？查询/操作的瓶颈是什么？数据大小是多少（实体大小 x 实体数量）？您的性能要求与当前性能之间的差异是多少？
也许还有其他不涉及Net.TCP的方法？
谢谢。
Dinesh
（WCF RIA 服务项目经理）
WCF RIA Services depends on HttpContext which is not available with Net.TCP binding.
As for perf issues, could you elaborate a bit further? What is the bottleneck query/operation? What is the size of data (entity size x entity count)? What is the delta between your perf requirements and current perf?
Perhaps there are other ways that don't involve Net.TCP?
Thanks.
Dinesh
(WCF RIA Services Program Manager)