Consistent use of logger

py/desisurvey/plan.py

@@ -232,6 +232,8 @@ def fiberassign(self, night, completed):
                       .format(np.count_nonzero(run_now), np.count_nonzero(delayed), night))
 
     def afternoon_plan(self, night, completed):
+        self.log.debug('Starting afternoon planning for {} with {} / {} tiles completed.'
+                       .format(night, np.count_nonzero(completed), self.tiles.ntiles))
         if self.first_night is None:
             # Remember the first night of the survey.
             self.first_night = night

py/desisurvey/scheduler.py

@@ -186,7 +186,10 @@ def update_tiles(self, tile_available, tile_priority):
 
         if not np.any(self.tile_available & self.tile_planned):
             raise ValueError('No available tiles with priority > 0 to schedule.')
-        return np.where(new_available)[0], np.where(new_planned)[0]
+        new_available, new_planned = np.where(new_available)[0], np.where(new_planned)[0]
+        self.log.debug('{} new available tiles, {} new planned tiles.'.format(
+            len(new_available), len(new_planned)))
+        return new_available, new_planned
 
     def init_night(self, night, use_twilight=False):
         """Initialize scheduling for the specified night.