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Showing posts with the label Pyspark

Memory Leaks When Using Pandas_udf And Parquet Serialization?

I am currently developing my first whole system using PySpark and I am running into some strange, m… Read more Memory Leaks When Using Pandas_udf And Parquet Serialization?

Pyspark - Get All Parameters Of Models Created With Paramgridbuilder

I'm using PySpark 2.0 for a Kaggle competition. I'd like to know the behavior of a model (R… Read more Pyspark - Get All Parameters Of Models Created With Paramgridbuilder

Spark - Set Null When Column Not Exist In Dataframe

I'm loading many versions of JSON files to spark DataFrame. some of the files holds columns A,B… Read more Spark - Set Null When Column Not Exist In Dataframe

Count Substring In String Column Using Spark Dataframe

I have a Spark dataframe with a column (assigned_products) of type string that contains values such… Read more Count Substring In String Column Using Spark Dataframe

Issue With Df.show() In Pyspark

I have the following code: import pyspark import pandas as pd from pyspark.sql import SQLContext f… Read more Issue With Df.show() In Pyspark

How To Specify The Partition For Mappartition In Spark

What I would like to do is compute each list separately so for example if I have 5 list ([1,2,3,4,5… Read more How To Specify The Partition For Mappartition In Spark

How To Drop Columns Based On Multiple Filters In A Dataframe Using Pyspark?

I have a list of valid values that a cell can have. If one cell in a column is invalid, I need to d… Read more How To Drop Columns Based On Multiple Filters In A Dataframe Using Pyspark?

Unable To Open Pyspark In Mac Os

I have installed pyspark through pip but unable to open it. It shows following error . Users/sonv… Read more Unable To Open Pyspark In Mac Os