def _populate(self):
        if self.loaded:
            return
        self.write_lock.acquire()
        try:
            if self.loaded:
                return
            for app_name in settings.INSTALLED_APPS:
                if app_name in self.handled:
                    continue
                self.load_app(app_name, True)
            if not self.nesting_level:
                for app_name in self.postponed:
                    self.load_app(app_name)
                self.loaded = True
        finally:
            self.write_lock.release()
Get the configuration of all node groups expressed as a dictionary of
dataset/ETHPy150Open AppScale/appscale/AppServer/lib/django-1.4/django/db/models/loading.py/AppCache._populate--crossover with--dataset/ETHPy150Open ganeti/ganeti/lib/config/__init__.py/ConfigWriter.GetAllNodeGroupsInfoDict