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POASP.NET TableStorageProvider for Azure tables not persisting users?
 

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  1. POASP.NET TableStorageProvider for Azure tables not persisting users?
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    <p>I have a windows azure Webrole application using Silverlight on top of WCF+ASP.NET. I found this useful ASP.NET provider for Azure tables in the <a href="http://code.msdn.microsoft.com/windowsazuresamples" rel="nofollow noreferrer">Azure samples</a> and implemented it. I authenticate my users with the WCF service <code>System.Web.ApplicationServices.AuthenticationService</code>. </p> <p>It works great: I create my users with a very simple ASP.NET form, then I go to my Silverlight app and authenticate successfully, but when I shutdown the Azure development storage environment and restart it, I can't log in again, even if the user is still in the Membership table. I debugged the logging process and found that when the provider executes the query to the table, it throw an exception in this method:</p> <pre><code>private MembershipRow GetUserFromTable(DataServiceContext svc, string username) { SecUtility.CheckParameter(ref username, true, true, true, Constants.MaxTableUsernameLength, "username"); DataServiceQuery&lt;MembershipRow&gt; queryObj = svc.CreateQuery&lt;MembershipRow&gt;(_tableName); var query = (from user in queryObj where user.PartitionKey == SecUtility.CombineToKey(_applicationName, username) &amp;&amp; user.ProfileIsCreatedByProfileProvider == false select user).AsTableServiceQuery(); IEnumerable&lt;MembershipRow&gt; allUsers = query.Execute(); if (allUsers == null) { return null; } IEnumerator&lt;MembershipRow&gt; e = allUsers.GetEnumerator(); if (e == null) { return null; } // e.Reset() throws a not implemented exception // according to the spec, the enumerator is at the beginning of the collections after a call to GetEnumerator() if (!e.MoveNext()) { return null; } MembershipRow ret = e.Current; if (e.MoveNext()) { throw new ProviderException("Duplicate elements for primary keys application and user name."); } return ret; } </code></pre> <p>the <code>queryObj</code> variable contains the user entry when I check during execution, but <code>query</code> looks like it contains an exception in one of its member. Finally, the execution fails when making the <code>e.moveNext()</code>.</p> <p>If I just delete all the Membership tables and blobs and recreate a user, it works just normally.</p>
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    1. This table or related slice is empty.
    1. USPaul
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      1. POASP.NET TableStorageProvider for Azure tables not persisting users?
      1. USKris van der Mast
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    1. COAre you sure that there is data for the users in all Membership and Roles table in Table Storage? There was a bug in developer storage that would not manifest itself until a restart when there are empty Table Storage tables and queries are made against them.
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      1. POASP.NET TableStorageProvider for Azure tables not persisting users?
      1. USMatt Spradley
    2. COI just started my machine and checked the tables. There is data in both Membership, Roles and Sessions. That's what worry me: if it is a development storage bug (in this case it is not a problem), or if it is a Provider-Azure bug (far more annoying...)
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      1. POASP.NET TableStorageProvider for Azure tables not persisting users?
      1. USPaul
    3. COThat Azure samples are not supposed to be production code, I'm still considering about use them or not :(
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      1. POASP.NET TableStorageProvider for Azure tables not persisting users?
      1. USvtortola
 

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