Databricks

I am confused by what's difference between running code using command python3 CODENAME.py and launch it by commend pyspark and start working on the code. When I run the code : spark = SparkSession.builder.config("spark.driver.memory", "16").appName(...

I used @pandas_udf write a function for speeding up the process(parsing xml file ) and then compare it's speed with single thread , Surprisingly , Using @pandas_udf is two times slower than single-thread code. And the number of xml files I need to p...