Michael questions

• How to calculate cumulative sum using sqlContext
• How to free c++ memory vector<int> * arr?
• cannot start spark history server
• How does Spark DataFrame handles Pandas DataFrame that is larger than memory
• How to prevent logging of pyspark 'answer received' and 'command to send' messages
• Passing additional arguments to python pandas DataFrame apply
• How to instantiate a static vector of object?
• How to increase the font size of the markdown table in jupyter notebook?

Michael answers