You can now use Hadoop directly from .NET Microsoft has release a SDK to do so.
https://hadoopsdk.codeplex.com/
Of course this means using the java based Hadoop network. But does it matter if the server is running in java? I am sure someone may attempt to port it but I don't think it would be a good idea as corporations are already backing the java version and I don't think the .NET port will get the same attention.
