Replace Makara with an initial Rails 6 role based splitting method.

app/controllers/concerns/session_tracking_concern.rb

@@ -13,9 +13,10 @@ module SessionTrackingConcern
 
   def set_session_activity
     return unless session_needs_update?
-    conn = ActiveRecord::Base.connection
-    conn.stick_to_master!
-    conn.exec_query "update session_activations set updated_at = NOW() where id = #{current_session.id}"
+    ActiveRecord::Base.connected_to(role: :writing) do
+      conn = ActiveRecord::Base.connection
+      conn.exec_query "update session_activations set updated_at = NOW() where id = #{current_session.id}"
+    end
   end
 
   def session_needs_update?

app/controllers/concerns/user_tracking_concern.rb

@@ -12,7 +12,9 @@ module UserTrackingConcern
   private
 
   def set_user_activity
-    current_user.update_sign_in!(request) if user_needs_sign_in_update?
+    ActiveRecord::Base.connected_to(role: :writing) do
+      current_user.update_sign_in!(request) if user_needs_sign_in_update?
+    end
   end
 
   def user_needs_sign_in_update?