Preheat the oven to 325 degrees F.
Coat a 14-16-cup fluted tube pan with the baking spray.
In the bowl of a stand mixer fitted with a paddle attachment, add the butter and beat it on medium speed until creamy, about 2-3 minutes. Make sure to stop and scrape down the sides of the bowl as needed.
With the mixer running on medium speed, gradually add the granulated sugar and beat until light and fluffy, about 3-5 minutes. Make sure to scrape down the sides of the bowl as necessary.
Add the eggs, 1 at a time, and beat after each addition until just combined.
In a medium bowl, add the flour, the salt, and the baking soda and whisk to combine.
With the stand mixer on low speed, add the flour mixture and the sour cream to the butter mixture, alternating between the two, adding about 1/3 of each at a time, and beating after each addition until just combined. Begin and end with the flour mixture.
Add 1 tablespoon of the vanilla and beat to combine.
Pour 1/2 of the batter into the prepared tube pan.
In a small bowl, add the pecans, the brown sugar, and the cinnamon and stir to combine.
Sprinkle the pecan mixture evenly over the batter in the pan.
Spoon the remaining batter over the pecan mixture and carefully spread it into an even layer.
Bake until a long wooden pick inserted into the center of the cake comes out clean, about 1 hour-1 hour 15 minutes.
Allow the cake to cool in the pan on a wire rack for 15 minutes.
Transfer the cake from the pan and allow it to cool completely on a wire rack, about 2 hours.
In a medium bowl, add the powdered sugar, the milk, and the remaining vanilla and whisk until smooth.
Spoon the glaze over the cooled cake.
Serve.