Gist realted to my "Auto retry concurrent commands with ncqrs" blogpost on http://marcofranssen.nl

SafeCommandService.cs

public class SafeCommandService : CommandService
{
    public override void Execute(ICommand command)
    {
        try 
        {
            base.Execute(command);
        }
        catch(ConcurrencyException ex)
        {
            Execute(command);
            //Log retry executed
        }
    }
}