在回测螺纹的时候（15分钟），2019-12-6这一天，通过打日志发现，每15分钟onbar函数被重复调用了三次，每15分钟被调用一次才对，如下是部分日志，请看下是什么问题，谢谢！
Line 80878: 2020-01-01 22:48:18.727 - 2019-12-06 09:00:00.000 - INFO - ======================进入BAR处理,code=rb2005.SHFE,g.code=rb2005.SHFE====================
Line 80893: 2020-01-01 22:48:18.730 - 2019-12-06 09:00:00.000 - INFO - ======================进入BAR处理,code=rb2001.SHFE,g.code=rb2005.SHFE====================
Line 80894: 2020-01-01 22:48:18.731 - 2019-12-06 09:00:00.000 - INFO - ======================进入BAR处理,code=rb2005.SHFE,g.code=rb2005.SHFE====================
Line 80909: 2020-01-01 22:48:18.739 - 2019-12-06 09:15:00.000 - INFO - ======================进入BAR处理,code=rb2005.SHFE,g.code=rb2005.SHFE====================
Line 80924: 2020-01-01 22:48:18.742 - 2019-12-06 09:15:00.000 - INFO - ======================进入BAR处理,code=rb2001.SHFE,g.code=rb2005.SHFE====================
Line 80925: 2020-01-01 22:48:18.742 - 2019-12-06 09:15:00.000 - INFO - ======================进入BAR处理,code=rb2005.SHFE,g.code=rb2005.SHFE====================
Line 80940: 2020-01-01 22:48:18.751 - 2019-12-06 09:30:00.000 - INFO - ======================进入BAR处理,code=rb2005.SHFE,g.code=rb2005.SHFE====================
Line 80955: 2020-01-01 22:48:18.753 - 2019-12-06 09:30:00.000 - INFO - ======================进入BAR处理,code=rb2001.SHFE,g.code=rb2005.SHFE====================
Line 80956: 2020-01-01 22:48:18.753 - 2019-12-06 09:30:00.000 - INFO - ======================进入BAR处理,code=rb2005.SHFE,g.code=rb2005.SHFE====================
Line 80971: 2020-01-01 22:48:18.761 - 2019-12-06 09:45:00.000 - INFO - ======================进入BAR处理,code=rb2005.SHFE,g.code=rb2005.SHFE====================
Line 80986: 2020-01-01 22:48:18.764 - 2019-12-06 09:45:00.000 - INFO - ======================进入BAR处理,code=rb2001.SHFE,g.code=rb2005.SHFE====================
Line 80987: 2020-01-01 22:48:18.764 - 2019-12-06 09:45:00.000 - INFO - ======================进入BAR处理,code=rb2005.SHFE,g.code=rb2005.SHFE====================
Line 81002: 2020-01-01 22:48:18.772 - 2019-12-06 10:00:00.000 - INFO - ======================进入BAR处理,code=rb2005.SHFE,g.code=rb2005.SHFE====================
Line 81020: 2020-01-01 22:48:18.776 - 2019-12-06 10:00:00.000 - INFO - ======================进入BAR处理,code=rb2001.SHFE,g.code=rb2005.SHFE====================
Line 81021: 2020-01-01 22:48:18.776 - 2019-12-06 10:00:00.000 - INFO - ======================进入BAR处理,code=rb2005.SHFE,g.code=rb2005.SHFE====================
Line 81037: 2020-01-01 22:48:18.786 - 2019-12-06 10:30:00.000 - INFO - ======================进入BAR处理,code=rb2005.SHFE,g.code=rb2005.SHFE====================
Line 81056: 2020-01-01 22:48:18.790 - 2019-12-06 10:30:00.000 - INFO - ======================进入BAR处理,code=rb2001.SHFE,g.code=rb2005.SHFE====================
Line 81057: 2020-01-01 22:48:18.790 - 2019-12-06 10:30:00.000 - INFO - ======================进入BAR处理,code=rb2005.SHFE,g.code=rb2005.SHFE====================
Line 81071: 2020-01-01 22:48:18.799 - 2019-12-06 10:45:00.000 - INFO - ======================进入BAR处理,code=rb2005.SHFE,g.code=rb2005.SHFE====================
Line 81086: 2020-01-01 22:48:18.802 - 2019-12-06 10:45:00.000 - INFO - ======================进入BAR处理,code=rb2001.SHFE,g.code=rb2005.SHFE====================
Line 81087: 2020-01-01 22:48:18.802 - 2019-12-06 10:45:00.000 - INFO - ======================进入BAR处理,code=rb2005.SHFE,g.code=rb2005.SHFE====================
Line 81102: 2020-01-01 22:48:18.810 - 2019-12-06 11:00:00.000 - INFO - ======================进入BAR处理,code=rb2005.SHFE,g.code=rb2005.SHFE====================
Line 81117: 2020-01-01 22:48:18.813 - 2019-12-06 11:00:00.000 - INFO - ======================进入BAR处理,code=rb2001.SHFE,g.code=rb2005.SHFE====================
Line 81118: 2020-01-01 22:48:18.813 - 2019-12-06 11:00:00.000 - INFO - ======================进入BAR处理,code=rb2005.SHFE,g.code=rb2005.SHFE====================
Line 81133: 2020-01-01 22:48:18.821 - 2019-12-06 11:15:00.000 - INFO - ======================进入BAR处理,code=rb2005.SHFE,g.code=rb2005.SHFE====================
Line 81148: 2020-01-01 22:48:18.824 - 2019-12-06 11:15:00.000 - INFO - ======================进入BAR处理,code=rb2001.SHFE,g.code=rb2005.SHFE====================
Line 81149: 2020-01-01 22:48:18.824 - 2019-12-06 11:15:00.000 - INFO - ======================进入BAR处理,code=rb2005.SHFE,g.code=rb2005.SHFE====================
Line 81164: 2020-01-01 22:48:18.833 - 2019-12-06 13:30:00.000 - INFO - ======================进入BAR处理,code=rb2005.SHFE,g.code=rb2005.SHFE====================
Line 81179: 2020-01-01 22:48:18.836 - 2019-12-06 13:30:00.000 - INFO - ======================进入BAR处理,code=rb2001.SHFE,g.code=rb2005.SHFE====================
Line 81180: 2020-01-01 22:48:18.836 - 2019-12-06 13:30:00.000 - INFO - ======================进入BAR处理,code=rb2005.SHFE,g.code=rb2005.SHFE====================
Line 81195: 2020-01-01 22:48:18.845 - 2019-12-06 13:45:00.000 - INFO - ======================进入BAR处理,code=rb2005.SHFE,g.code=rb2005.SHFE====================
Line 81210: 2020-01-01 22:48:18.847 - 2019-12-06 13:45:00.000 - INFO - ======================进入BAR处理,code=rb2001.SHFE,g.code=rb2005.SHFE====================
Line 81211: 2020-01-01 22:48:18.847 - 2019-12-06 13:45:00.000 - INFO - ======================进入BAR处理,code=rb2005.SHFE,g.code=rb2005.SHFE====================
Line 81226: 2020-01-01 22:48:18.856 - 2019-12-06 14:00:00.000 - INFO - ======================进入BAR处理,code=rb2005.SHFE,g.code=rb2005.SHFE====================
Line 81241: 2020-01-01 22:48:18.858 - 2019-12-06 14:00:00.000 - INFO - ======================进入BAR处理,code=rb2001.SHFE,g.code=rb2005.SHFE====================
Line 81242: 2020-01-01 22:48:18.858 - 2019-12-06 14:00:00.000 - INFO - ======================进入BAR处理,code=rb2005.SHFE,g.code=rb2005.SHFE====================
Line 81257: 2020-01-01 22:48:18.867 - 2019-12-06 14:15:00.000 - INFO - ======================进入BAR处理,code=rb2005.SHFE,g.code=rb2005.SHFE====================
Line 81272: 2020-01-01 22:48:18.869 - 2019-12-06 14:15:00.000 - INFO - ======================进入BAR处理,code=rb2001.SHFE,g.code=rb2005.SHFE====================
Line 81273: 2020-01-01 22:48:18.869 - 2019-12-06 14:15:00.000 - INFO - ======================进入BAR处理,code=rb2005.SHFE,g.code=rb2005.SHFE====================