updated celery logging info

crawlab/tasks/spider.py

@@ -72,6 +72,10 @@ def execute_spider(self, id: str):
 
     # save task when the task is finished
     db_manager.update_one('tasks', id=task_id, values={
+        'start_ts': datetime.now(),
+        'node_id': hostname,
+        'hostname': hostname,
+        'log_file_path': log_file_path,
         'finish_ts': datetime.now(),
         'status': status
     })