release 1.2.1
release 1.2.1

lulusayhi/jafka,lsqtongxin/jafka,adyliu/jafka,lulusayhi/jafka,sdgdsffdsfff/jafka,lsqtongxin/jafka,GreedyWang/jafka,adyliu/jafka,zhangxingits/jafka,StevenTsai/jafka,lsqtongxin/jafka,StevenTsai/jafka,StevenTsai/jafka,buildhappy/jafka,sdgdsffdsfff/jafka,buildhappy/jafka,lulusayhi/jafka,adyliu/jafka,sdgdsffdsfff/jafka,GreedyWang/jafka,zhangxingits/jafka,zhangxingits/jafka,GreedyWang/jafka,buildhappy/jafka