【发布时间】：2013-05-04 21:43:58
【问题描述】：
我正在使用 WCF 服务和 Azure 进行游戏。
我有几个 WCF 服务在 Azure 上成功运行，这个特定的服务一直在正常运行，直到我决定在不同的（现有）云服务下重新部署它。
我在我的 VS 解决方案中将其从云服务 X 的角色下删除，并将其添加到另一个云服务角色。我发布了，当我发布时，我收到异常错误 “未处理的异常：Microsoft.WindowsAzure.ServiceRuntime.RoleEnvironmentException”。有人告诉我，该服务不断被回收。
此消息显示在此 WCF 服务所在实例下的 Azure 管理门户中。我已经在它自己的云服务和具有实例的服务下尝试过它。
查看了有关该问题 (http://blogs.msdn.com/b/davidmcg/archive/2011/03/10/diagnosticmonitor-roleenvironmentexception-was-unhandled.aspx) 和 (http://www.microsofttranslator.com/bv.aspx?from=&to=en&a=http%3A%2F%2Fpul.se%2FBlog-Post-Error-RoleEnvironmentException-was-unhandled_Video-ptFrIOhJU6%2ClWCxfMvJiNbE) 的少量文章
远程处理实例，我在事件查看器中有以下内容：
Application: WaIISHost.exe
Framework Version: v4.0.30319
Description: The process was terminated due to an unhandled exception.
Exception Info: Microsoft.WindowsAzure.ServiceRuntime.RoleEnvironmentException
Stack:
at Microsoft.WindowsAzure.ServiceRuntime.Implementation.Loader.RoleRuntimeBridge.<InitializeRole>b__0()
at System.Threading.ExecutionContext.RunInternal(System.Threading.ExecutionContext, System.Threading.ContextCallback, System.Object, Boolean)
at System.Threading.ExecutionContext.Run(System.Threading.ExecutionContext, System.Threading.ContextCallback, System.Object, Boolean)
at System.Threading.ExecutionContext.Run(System.Threading.ExecutionContext, System.Threading.ContextCallback, System.Object)
at System.Threading.ThreadHelper.ThreadStart()
我也发现了：
Microsoft.WindowsAzure.ServiceRuntime.RoleEnvironmentException: error
at Microsoft.WindowsAzure.ServiceRuntime.RoleEnvironment.GetLocalResource(String localResourceName)
at WCFServiceDataTransfer.AzureLocalStorageTraceListener.GetLogDirectory()
at WCFServiceDataTransfer.WebRole.OnStart()
但这是 AzureLocalStorageTraceListener 中自动生成的代码。
我怎样才能找到这个问题的根源？
Web.Config
<?xml version="1.0" encoding="utf-8"?>
<configuration>
<!-- To collect diagnostic traces, uncomment the section below or merge with existing system.diagnostics section.
To persist the traces to storage, update the DiagnosticsConnectionString setting with your storage credentials.
To avoid performance degradation, remember to disable tracing on production deployments.
<system.diagnostics>
<sharedListeners>
<add name="AzureLocalStorage" type="WCFServiceDataTransfer.AzureLocalStorageTraceListener, WCFServiceDataTransfer"/>
</sharedListeners>
<sources>
<source name="System.ServiceModel" switchValue="Verbose, ActivityTracing">
<listeners>
<add name="AzureLocalStorage"/>
</listeners>
</source>
<source name="System.ServiceModel.MessageLogging" switchValue="Verbose">
<listeners>
<add name="AzureLocalStorage"/>
</listeners>
</source>
</sources>
</system.diagnostics> -->
<system.diagnostics>
<trace>
<listeners>
<add type="Microsoft.WindowsAzure.Diagnostics.DiagnosticMonitorTraceListener, Microsoft.WindowsAzure.Diagnostics, Version=1.8.0.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35" name="AzureDiagnostics">
</add>
</listeners>
</trace>
</system.diagnostics>
<system.web>
<compilation debug="true" targetFramework="4.0" />
</system.web>
<system.serviceModel>
<client />
<services>
<service behaviorConfiguration="TransferServiceBehavior" name="WCFServiceDataTransfer.TransferService">
<endpoint address="" binding="basicHttpBinding" bindingConfiguration="TransferService" contract="WCFServiceDataTransfer.ITransferService">
</endpoint>
</service>
</services>
<bindings>
<basicHttpBinding>
<binding name="TransferService" maxBufferSize="2147483647" maxReceivedMessageSize="2147483647"
transferMode="Streamed">
<readerQuotas maxDepth="2147483647" maxStringContentLength="2147483647"
maxArrayLength="2147483647" maxBytesPerRead="2147483647" maxNameTableCharCount="2147483647" />
<security mode="None" />
</binding>
</basicHttpBinding>
</bindings>
<behaviors>
<serviceBehaviors>
<behavior name="TransferServiceBehavior">
<serviceMetadata httpGetEnabled="true" />
<dataContractSerializer maxItemsInObjectGraph="2147483647" />
<serviceDebug includeExceptionDetailInFaults="true" />
<serviceThrottling maxConcurrentCalls="500" maxConcurrentSessions="500" maxConcurrentInstances="500" />
</behavior>
<behavior>
<!-- To avoid disclosing metadata information, set the value below to false before deployment -->
<serviceMetadata httpGetEnabled="true" />
<!-- To receive exception details in faults for debugging purposes, set the value below to true. Set to false before deployment to avoid disclosing exception information -->
<serviceDebug includeExceptionDetailInFaults="true" />
</behavior>
</serviceBehaviors>
</behaviors>
<serviceHostingEnvironment aspNetCompatibilityEnabled="true" multipleSiteBindingsEnabled="true" />
</system.serviceModel>
<system.webServer>
<modules runAllManagedModulesForAllRequests="true" />
<!--
To browse web app root directory during debugging, set the value below to true.
Set to false before deployment to avoid disclosing web app folder information.
-->
<directoryBrowse enabled="true" />
</system.webServer>
<runtime>
<assemblyBinding xmlns="urn:schemas-microsoft-com:asm.v1">
<dependentAssembly>
<assemblyIdentity name="Microsoft.Data.Services.Client" publicKeyToken="31bf3856ad364e35" culture="neutral" />
<bindingRedirect oldVersion="0.0.0.0-5.1.0.0" newVersion="5.1.0.0" />
</dependentAssembly>
</assemblyBinding>
<httpRuntime maxRequestLength="2097151" useFullyQualifiedRedirectUrl="true" executionTimeout="14400" />
</runtime>
</configuration>
进入
public class WebRole : RoleEntryPoint
{
public override bool OnStart()
{
// To enable the AzureLocalStorageTraceListner, uncomment relevent section in the web.config
DiagnosticMonitorConfiguration diagnosticConfig = DiagnosticMonitor.GetDefaultInitialConfiguration();
diagnosticConfig.Directories.ScheduledTransferPeriod = TimeSpan.FromMinutes(1);
diagnosticConfig.Directories.DataSources.Add(AzureLocalStorageTraceListener.GetLogDirectory());
// For information on handling configuration changes
// see the MSDN topic at http://go.microsoft.com/fwlink/?LinkId=166357.
return base.OnStart();
}
}
【问题讨论】：