anchor.diff:      #Fix tornado await process
       pip uninstall -y -q tornado && \
       pip install tornado==5.1.1 && \
  -    pip install ray==0.7.0 && \
  -    pip install psutil && \
  -    pip install aiohttp && \
  -    pip install setproctitle && \
  -    pip install featuretools && \
       python3 -m ipykernel.kernelspec
   
   #spark
  
positive.code: 
  WORKDIR /opt/work
  
  ARG ANALYTICS_ZOO_VERSION=0.6.0-SNAPSHOT
  ARG BIGDL_VERSION=0.9.0
  ARG SPARK_VERSION=2.4.3
  ARG RUNTIME_SPARK_MASTER=local[4]
  ARG RUNTIME_DRIVER_CORES=4
  
negative.code:     mv spark-${SPARK_VERSION}-bin-hadoop2.7 spark-${SPARK_VERSION} && \
      rm spark-${SPARK_VERSION}-bin-hadoop2.7.tgz
  
  ADD ./download-analytics-zoo.sh /opt/work
  ADD ./start-notebook.sh /opt/work
  RUN chmod a+x /opt/work/download-analytics-zoo.sh && \
      chmod a+x /opt/work/start-notebook.sh
  RUN /opt/work/download-analytics-zoo.sh
  
  CMD ["/opt/work/start-notebook.sh"]
  