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Can AppFabric be a session state provider and use local cache?

I use AppFabric as the session state provider in my ASP.Net MVC2 application, and I would like it to use the local cache as well. I have the following entry in my web.config right after the configSections node:

<dataCacheClient> <localCache isEnabled="true" sync="TimeoutBased" objectCount="100000" ttlValue="300" /> <hosts> <host name="127.0.0.1" cachePort="22233"/> </hosts> </dataCacheClient>

I also have the following entry in web.config as a child of system.web node:

 <sessionState mode="Custom" customProvider="AppFabricCacheSessionStoreProvider"> <providers> <add name="AppFabricCacheSessionStoreProvider" type="Microsoft.ApplicationServer.Caching.DataCacheSessionStoreProvider" cacheName="Default" sharedId="DefaultId"/> </providers> </sessionState>

Unfortunately, if I add something to the session, run the following two commands in the PowerShell AppFabric, all that I added to my session data no longer exists, which leaves me to believe that it does not use the local cache:

 Stop-CacheCluster Start-CacheCluster

I also try to cache objects using AppFabric using the following code, and after I started and stopped CacheCluster, the cached object stops caching:

 var factory = new DataCacheFactory(); var cache = factory.GetCache("Default"); cache.Put("Key", "Test");

However, if I create an instance of AppFabric using the following code, where I explicitly tell it to use the local cache, rather than relying on the web.config entry, it works:

 var servers = new List<DataCacheServerEndpoint>(1) { new DataCacheServerEndpoint("127.0.0.1", 22233) }; var configuration = new DataCacheFactoryConfiguration { Servers = servers, LocalCacheProperties = new DataCacheLocalCacheProperties(100000, new TimeSpan(0, 30, 0), DataCacheLocalCacheInvalidationPolicy.TimeoutBased) }; var factory = new DataCacheFactory(configuration); var cache factory.GetCache("StpWebSession"); cache.Put("Key", "Test");

What am I doing wrong, why does my entry in web.config not say that AppFabric uses the local cache? Can you use AppFabric as a session state provider and also use the local cache?

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I found a little tune in http://social.msdn.microsoft.com/Forums/en-US/velocity/thread/24e72dab-bb20-47ec-aae2-77423b1d296b .

Basically, "enableSessionState" is "true" by default, which means you need to go through remotely for all requests. If you set the ReadOnly property, the session state object will be retrieved from the local cache. Then, if the local cache is invalid, it will again go to the remote store.

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