anchor.diff:  
   WORKDIR /opt/work
   
  -ARG ANALYTICS_ZOO_VERSION=0.6.0-SNAPSHOT
  -ARG BIGDL_VERSION=0.9.0
  +ARG ANALYTICS_ZOO_VERSION=0.7.0-SNAPSHOT
  +ARG BIGDL_VERSION=0.9.1
   ARG SPARK_VERSION=2.4.3
   ARG RUNTIME_SPARK_MASTER=local[4]
   ARG RUNTIME_DRIVER_CORES=4
  
positive.code:     #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
  
negative.code: ENV RUNTIME_EXECUTOR_MEMORY         ${RUNTIME_EXECUTOR_MEMORY}
  ENV RUNTIME_TOTAL_EXECUTOR_CORES    ${RUNTIME_TOTAL_EXECUTOR_CORES}
  ENV SPARK_HOME                      /opt/work/spark-${SPARK_VERSION}
  ENV ANALYTICS_ZOO_HOME              /opt/work/analytics-zoo-${ANALYTICS_ZOO_VERSION}
  ENV JAVA_HOME                       /opt/jdk
  ENV PATH                            ${JAVA_HOME}/bin:${PATH}
  
  