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PODataServiceRequestException with TableStorageSessionStateProvider
 

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  1. PODataServiceRequestException with TableStorageSessionStateProvider
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    <p>I'm trying to use the TableStorageSessionStateProvider from the Azure training kit. I can use the example without problems but when I use it in my web app, I get this exception:</p> <pre><code>System.Data.Services.Client.DataServiceRequestException occurred Message=An error occurred while processing this request. Source=Microsoft.WindowsAzure.StorageClient StackTrace: at Microsoft.WindowsAzure.StorageClient.Tasks.Task`1.get_Result() at Microsoft.WindowsAzure.StorageClient.Tasks.Task`1.ExecuteAndWait() at Microsoft.Samples.ServiceHosting.AspProviders.TableStorageSessionStateProvider.&lt;&gt;c__DisplayClass5.&lt;ResetItemTimeout&gt;b__4() InnerException: System.Data.Services.Client.DataServiceClientException Message=&lt;?xml version="1.0" encoding="utf-8" standalone="yes"?&gt; &lt;error xmlns="http://schemas.microsoft.com/ado/2007/08/dataservices/metadata"&gt; &lt;code&gt;UpdateConditionNotSatisfied&lt;/code&gt; &lt;message xml:lang="en-US"&gt;The update condition specified in the request was not satisfied. RequestId:c552d552-ba1c-4920-84fc-e716705b58b9 Time:2011-02-17T12:43:38.5650557Z&lt;/message&gt; &lt;/error&gt; Source=System.Data.Services.Client StatusCode=412 StackTrace: at System.Data.Services.Client.DataServiceContext.SaveResult.&lt;HandleBatchResponse&gt;d__1e.MoveNext() InnerException: </code></pre> <p>I've tried <a href="http://social.msdn.microsoft.com/Forums/en/windowsazure/thread/8cb4937a-fe1e-42ef-b907-1e5238b2b3e9" rel="nofollow">this</a>, but no luck so far.I've also seen null reference exceptions happening, so I guess that the TableStorageSessionStateProvider it's not behaving like the InProc one, so maybe I have to check how sessions are being used in the application. But, what could be the problem ?</p> <p>EDIT: Well, I've find out that the example in the Azure training kit also fails if you only use the TableStorageSessionStateProvider with the same exception. You just have to comment the other providers:</p> <p> </p> <pre><code>&lt;authentication mode="Forms"&gt; &lt;forms loginUrl="~/Account/Login.aspx" timeout="2880" /&gt; &lt;/authentication&gt; &lt;!-- Membership Provider Configuration --&gt; &lt;!--&lt;membership defaultProvider="TableStorageMembershipProvider" userIsOnlineTimeWindow="20"&gt; &lt;providers&gt; &lt;clear /&gt; &lt;add name="TableStorageMembershipProvider" type="Microsoft.Samples.ServiceHosting.AspProviders.TableStorageMembershipProvider" description="Membership provider using table storage" applicationName="AzureStore" enablePasswordRetrieval="false" enablePasswordReset="true" requiresQuestionAndAnswer="false" minRequiredPasswordLength="1" minRequiredNonalphanumericCharacters="0" requiresUniqueEmail="true" passwordFormat="Hashed" /&gt; &lt;/providers&gt; &lt;/membership&gt; &lt;profile&gt; &lt;providers&gt; &lt;clear /&gt; &lt;add name="AspNetSqlProfileProvider" type="System.Web.Profile.SqlProfileProvider" connectionStringName="ApplicationServices" applicationName="/" /&gt; &lt;/providers&gt; &lt;/profile&gt; --&gt;&lt;!-- RoleManager Provider Configuration --&gt;&lt;!-- &lt;roleManager enabled="true" defaultProvider="TableStorageRoleProvider" cacheRolesInCookie="true" cookieName=".ASPXROLES" cookieTimeout="30" cookiePath="/" cookieRequireSSL="false" cookieSlidingExpiration="true" cookieProtection="All"&gt; &lt;providers&gt; &lt;clear /&gt; &lt;add name="TableStorageRoleProvider" type="Microsoft.Samples.ServiceHosting.AspProviders.TableStorageRoleProvider" description="Role provider using table storage" applicationName="AzureStore" /&gt; &lt;/providers&gt; &lt;/roleManager&gt;--&gt; &lt;!-- SessionState Provider Configuration --&gt; &lt;sessionState mode="Custom" customProvider="TableStorageSessionStateProvider"&gt; &lt;providers&gt; &lt;clear /&gt; &lt;add name="TableStorageSessionStateProvider" type="Microsoft.Samples.ServiceHosting.AspProviders.TableStorageSessionStateProvider" applicationName="AzureStore" /&gt; &lt;/providers&gt; &lt;/sessionState&gt; &lt;machineKey decryption="AES" decryptionKey="F7FA540B4DFD82E5BB196B95D15FF81F5B973B5514F973D2A46B4C52224A3ABC" validation="SHA1" validationKey="5B973B5514F973D2A46B4C52224A3ABC90378EFA9DE62168764FF0DCE537184F0535D5D9AD66DEDC5B973B5514F973D2A46B4C52224A3ABC90378EFA97DC1ABF" /&gt; </code></pre> <p></p>
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    1. This table or related slice is empty.
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    1. COI don't know specifically how to fix this but I will warn you that this particular session provider shouldn't be used for a production solution. It doesn't clean up after itself (expired session values are not removed) and its also a bit unstable. If you need a more reliable solution, you may want to check into the Azure AppFabric cache service. It also has a session provider that has proven to be much more reliable.
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      1. PODataServiceRequestException with TableStorageSessionStateProvider
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    2. COAzure AppFabric is in CTP and in the Terms of Use of the AppFabricLabs say you are not allowed to use it in commercial applications. We are looking for a temporary solution till the 2011 Q2, that is when AppFabric Cache service is supposed to be released (if I'm not wrong). I cannot believe that the options available to share session state are: this crap and something in CTP, because save the session state in SQL Azure is not supported by Microsoft.
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      1. PODataServiceRequestException with TableStorageSessionStateProvider
      1. USvtortola
 

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