WCF间歇性停止响应

编程入门行业动态更新时间:2024-10-24 12:25:06

本文介绍了WCF间歇性停止响应的处理方法，对大家解决问题具有一定的参考价值，需要的朋友们下面随着小编来一起学习吧！问题描述

我有一个ASP.Net网站，该网站从WCF托管站点(IIS)获取所有业务逻辑.偶尔，后端WCF似乎冻结了，这使Web前端停止响应.我必须回收两个应用程序池以使其再次运行.

I have a ASP.Net web site that get all business logic from a WCF hosting site (IIS). Once in a while, it looks like the backend WCF frozen and that makes web front-end stop responding. I have to recycle both application pools to make it work again.

最近发生的次数更多，可能是因为我们有更多&使用该网站的更多客户.以前，它每月发生一次，而现在每周一次.也许更多.
在每次SVC通话后，我们都会关闭连接.
回收池后在事件日志中收到错误消息

消息:System.ServiceModel.CommunicationException:收到对.........../.... BusinessServices.svc的HTTP响应时发生错误.这可能是由于服务端点绑定未使用HTTP协议.这也可能是由于服务器终止了HTTP请求上下文(可能是由于服务关闭了).有关更多详细信息，请参见服务器日志. ---> System.Net.WebException:基础连接已关闭:接收时发生意外错误. ---> System.IO.IOException:无法从传输连接中读取数据:现有连接被远程主机强行关闭. ---> System.Net.Sockets.SocketException:现有连接被远程主机强行关闭

Message: System.ServiceModel.CommunicationException: An error occurred while receiving the HTTP response to .........../.....BusinessServices.svc. This could be due to the service endpoint binding not using the HTTP protocol. This could also be due to an HTTP request context being aborted by the server (possibly due to the service shutting down). See server logs for more details. ---> System.Net.WebException: The underlying connection was closed: An unexpected error occurred on a receive. ---> System.IO.IOException: Unable to read data from the transport connection: An existing connection was forcibly closed by the remote host. ---> System.Net.Sockets.SocketException: An existing connection was forcibly closed by the remote host

Web应用程序的Web.config:

Web.config，将限制设置为1500
- Web.config of the WCF service, with throttling set to 1500
  
  ...
  
  .....
  <behavior name="AppServiceBehaviors"> <serviceMetadata httpGetEnabled="true" /> <serviceDebug includeExceptionDetailInFaults="true" /> <dataContractSerializer maxItemsInObjectGraph="2147483647" /> <serviceTimeouts transactionTimeout="00:15:00" /> <serviceThrottling maxConcurrentCalls="1500" maxConcurrentSessions="1500" maxConcurrentInstances="2147483647" /> </behavior> <behavior name=""> <serviceMetadata httpGetEnabled="true" /> <serviceDebug includeExceptionDetailInFaults="true" /> <dataContractSerializer maxItemsInObjectGraph="2147483647" /> </behavior> </serviceBehaviors> </behaviors>