ruson

Results 4 issues of ruson

**Describe the bug** 1. code block in pipeline_model.fit(), No progress, spark stage always 0 2. csv data : column 200, row 800000 3. one centos compute train cost time: 1min...

cd docker-hadoop-3.2.1 docker-compose up starting log: ![image](https://user-images.githubusercontent.com/21210508/102856609-c30f2c00-4461-11eb-91e8-d2cc48a36d7f.png) datanode log: ![image](https://user-images.githubusercontent.com/21210508/102857228-01f1b180-4463-11eb-859b-7ce8e7f5b86b.png)

## Purpose of the pull request ## Brief change log close: #11499 ## Verify this pull request This pull request is code cleanup without any test coverage. *(or)* This pull...

bug
backend

看到你们daasclient支持 部署Scikit-learn模型,部署XGBoost模型,部署LightGBM模型服务,是不是还有个python的模型服务?