Requesting further assistance with Spark Scala code coverage

2024-03-14 Thread 里昂
I have sent out an email regarding Spark coverage, but haven't received any response. I'm hoping someone could provide an answer on whether there is currently any code coverage statistics available for Scala code in Spark. https://lists.apache.org/thread/hob7x42gk3q244t9b0d8phwjtxjk2plt

Re: pyspark - Where are Dataframes created from Python objects stored?

2024-03-14 Thread Mich Talebzadeh
Hi, When you create a DataFrame from Python objects using spark.createDataFrame, here it goes: *Initial Local Creation:* The DataFrame is initially created in the memory of the driver node. The data is not yet distributed to executors at this point. *The role of lazy Evaluation:* Spark applies

pyspark - Where are Dataframes created from Python objects stored?

2024-03-14 Thread Sreyan Chakravarty
I am trying to understand Spark Architecture. For Dataframes that are created from python objects ie. that are *created in memory where are they stored ?* Take following example: from pyspark.sql import Rowimport datetime courses = [ { 'course_id': 1, 'course_title': 'Masteri