最奇怪的事情。我正在切换到 SDK v1.7 和新的 ACS，成功登录后出现这个奇怪的错误。它似乎与 Azure 缓存服务的 SessionState 提供程序有关。
我没有使用预览版，但我使用的是 SDK 1.7，并且我使用的是启用了预览版功能的 Windows Azure 帐户。
就像 ACS/Cache Service SDK 深处的某些东西被搞砸了。
这是我的缓存配置：
<dataCacheClients>
<dataCacheClient name="default">
<tracing sinkType="DiagnosticSink" traceLevel="Verbose" />
<hosts>
<host name="[[newCacheNamespace]].cache.windows.net" cachePort="22233" />
</hosts>
<securityProperties mode="Message">
<messageSecurity authorizationInfo="[[secret]]">
</messageSecurity>
</securityProperties>
</dataCacheClient>
<dataCacheClient name="SslEndpoint">
<tracing sinkType="DiagnosticSink" traceLevel="Verbose" />
<hosts>
<host name="[[newCacheNamespace]].cache.windows.net" cachePort="22243" />
</hosts>
<securityProperties mode="Message" sslEnabled="true">
<messageSecurity authorizationInfo="[[secret]]">
</messageSecurity>
</securityProperties>
</dataCacheClient>
</dataCacheClients>
这是我的会话状态提供程序配置：
<sessionState mode="Custom" customProvider="AppFabricCacheSessionStoreProvider">
<providers>
<add name="DefaultSessionProvider" type="System.Web.Providers.DefaultSessionStateProvider, System.Web.Providers, Version=1.0.0.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35" connectionStringName="DefaultConnection" applicationName="/" />
<add name="AppFabricCacheSessionStoreProvider" type="Microsoft.Web.DistributedCache.DistributedCacheSessionStateStoreProvider, Microsoft.Web.DistributedCache" cacheName="default" useBlobMode="true" dataCacheClientName="default" />
</providers>
</sessionState>
以下是我得到的错误：
Server Error in '/' Application.
--------------------------------------------------------------------------------
The remote name could not be resolved: '[[oldCacheNamespace]]-cache.accesscontrol.windows.net'
Description: An unhandled exception occurred during the execution of the current web request. Please review the stack trace for more information about the error and where it originated in the code.
Exception Details: System.Net.WebException: The remote name could not be resolved: '[[oldCacheNamespace]]-cache.accesscontrol.windows.net'
Source Error:
An unhandled exception was generated during the execution of the current web request. Information regarding the origin and location of the exception can be identified using the exception stack trace below.
Stack Trace:
[WebException: The remote name could not be resolved: '[[oldCacheNamespace]]-cache.accesscontrol.windows.net']
System.Net.WebClient.UploadValues(Uri address, String method, NameValueCollection data) +1243
System.Net.WebClient.UploadValues(String address, String method, NameValueCollection data) +179
Microsoft.ApplicationServer.Caching.AcsHelpers.GetToken(String serviceNamespace, String acsHostName, String issuerName, String issuerKey, String appliesTo) +523
[DataCacheException: ErrorCode<ERRCA0030>:SubStatus<ES0001>:ACS request for token failed. One of the reasons could be an invalid authorization token.]
Microsoft.ApplicationServer.Caching.AcsHelpers.GetToken(String serviceNamespace, String acsHostName, String issuerName, String issuerKey, String appliesTo) +1875
Microsoft.ApplicationServer.Caching.ClientAcsSecurity.get_Token() +242
Microsoft.ApplicationServer.Caching.CacheResolverChannel..ctor(CacheResolverCommunicatorType communicatorType, IDuplexSessionChannel innerChannel, DataCacheSecurity dataCacheSecurity) +559
[CommunicationException: ErrorCode<ERRCA0030>:SubStatus<ES0001>:ACS request for token failed. One of the reasons could be an invalid authorization token.]
Microsoft.ApplicationServer.Caching.CacheResolverChannel..ctor(CacheResolverCommunicatorType communicatorType, IDuplexSessionChannel innerChannel, DataCacheSecurity dataCacheSecurity) +833
Microsoft.ApplicationServer.Caching.CacheResolverChannelFactory`1.System.ServiceModel.Channels.IChannelFactory<TChannel>.CreateChannel(EndpointAddress to) +274
Microsoft.ApplicationServer.Caching.EndPointIdentityChannelFactory`1.System.ServiceModel.Channels.IChannelFactory<TChannel>.CreateChannel(EndpointAddress to) +186
Microsoft.ApplicationServer.Caching.WcfClientChannel.CreateChannel(EndpointID endpoint) +557
Microsoft.ApplicationServer.Caching.ChannelContainer.CreateChannel() +153
[DataCacheException: ErrorCode<ERRCA0017>:SubStatus<ES0006>:There is a temporary failure. Please retry later. (One or more specified cache servers are unavailable, which could be caused by busy network or servers. For on-premises cache clusters, also verify the following conditions. Ensure that security permission has been granted for this client account, and check that the AppFabric Caching Service is allowed through the firewall on all cache hosts. Also the MaxBufferSize on the server must be greater than or equal to the serialized object size sent from the client.)]
Microsoft.ApplicationServer.Caching.DataCache.ThrowException(ResponseBody respBody) +693
Microsoft.ApplicationServer.Caching.DataCacheFactory.GetCacheProperties(RequestBody request, SimpleSendReceiveModule sendRcvModule) +1194
Microsoft.ApplicationServer.Caching.DataCacheFactory.GetCache(String cacheName) +701
Microsoft.Web.DistributedCache.DataCacheFactoryWrapper.CreateDataCacheFromFactory(DataCacheFactory factory, String cacheName) +63
Microsoft.Web.DistributedCache.CacheHelpers.RunCacheCreationHooks(CacheConnectingEventArgs fetchingEventArgs, IDataCacheFactory dataCacheFactory, Object sender, EventHandler`1 fetchingHandler, EventHandler`1 fetchedHandler) +356
Microsoft.Web.DistributedCache.DistributedCacheSessionStateStoreProvider.CreateInternalProvider(IHttpRuntime httpRuntime, SessionInitializationData initData, IDataCacheFactory dataCacheFactory, EventHandler`1 cacheFetching, EventHandler`1 cacheFetched) +447
Microsoft.Web.DistributedCache.DistributedCacheSessionStateStoreProvider.GetInternalProvider() +315
Microsoft.Web.DistributedCache.DistributedCacheSessionStateStoreProvider.CreateNewStoreData(HttpContext context, Int32 timeout) +59
System.Web.SessionState.SessionStateModule.InitStateStoreItem(Boolean addToContext) +182
System.Web.SessionState.SessionStateModule.CompleteAcquireState() +374
System.Web.SessionState.SessionStateModule.BeginAcquireState(Object source, EventArgs e, AsyncCallback cb, Object extraData) +2007
System.Web.AsyncEventExecutionStep.System.Web.HttpApplication.IExecutionStep.Execute() +477
System.Web.HttpApplication.ExecuteStep(IExecutionStep step, Boolean& completedSynchronously) +312