System.Web.Providers.DefaultMembershipProvider having performance issues/deadlocks

Question

We have started to use the updated System.Web.Providers provided in the Microsoft.AspNet.Providers.Core package from NuGet. We started to migrate our existing users and foun

Answer 1

I was using the System.Web.Providers.DefaultMembershipProvider membership provider too but found that it was really slow. I changed to the System.Web.Security.SqlMembershipProvider and found it to be much faster (>5 times faster).

This tutorial shows you how to set up the SQL database that you need to use the SqlMembershipProvider http://weblogs.asp.net/sukumarraju/archive/2009/10/02/installing-asp-net-membership-services-database-in-sql-server-expreess.aspx

This database that is auto generated uses stored procedures which may or may not be an issue for your DB guys.

Answer 2

You can create an index on lower(username) per Sql Server : Lower function on Indexed Column

ALTER TABLE dbo.users ADD LowerFieldName AS LOWER(username) PERSISTED
CREATE NONCLUSTERED INDEX IX_users_LowerFieldName_  ON dbo.users(LowerFieldName)