根据请求时间逆序

tasks/new_contentId_task.py

@@ -56,7 +56,7 @@ class NewContentIdTask(object):
                     t1.content_status = {NewContentIdTaskConst.TASK_INIT_STATUS}
                 AND t1.process_times <= {NewContentIdTaskConst.TASK_MAX_PROCESS_TIMES}
                 AND COALESCE(t2.cnt, 0) < {NewContentIdTaskConst.MIN_MATCH_VIDEO_NUM}
-            ORDER BY flow_pool_level, request_timestamp
+            ORDER BY flow_pool_level, request_timestamp DESC
             LIMIT {self.spider_coroutines};
         """
         tasks = await self.long_articles_client.async_select(select_sql)