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Showing posts with the label Pyspark

Spark - Missing 1 Required Position Argument (lambda Function)

I'm trying to distribute some text extraction from PDFs between multiple servers using Spark. T… Read more Spark - Missing 1 Required Position Argument (lambda Function)

Pyspark: Concat Function Generated Columns Into New Dataframe

I have a pyspark dataframe (df) with n cols, I would like to generate another df of n cols, where e… Read more Pyspark: Concat Function Generated Columns Into New Dataframe

Cosine Similarity For Two Pyspark Dataframes

I have a PySpark DataFrame, df1, that looks like: CustomerID CustomerValue CustomerValue2 12 … Read more Cosine Similarity For Two Pyspark Dataframes

Flatten Nested Array In Spark Dataframe

I'm reading in some JSON on the from: {'a': [{'b': {'c': 1, 'd'… Read more Flatten Nested Array In Spark Dataframe

Encountering " Warn Procfsmetricsgetter: Exception When Trying To Compute Pagesize" Error When Running Spark

I installed spark and when trying to run it, I am getting the error: WARN ProcfsMetricsGetter: Exc… Read more Encountering " Warn Procfsmetricsgetter: Exception When Trying To Compute Pagesize" Error When Running Spark

Pyspark 2.1: Importing Module With Udf's Breaks Hive Connectivity

I'm currently working with Spark 2.1 and have a main script that calls a helper module that con… Read more Pyspark 2.1: Importing Module With Udf's Breaks Hive Connectivity

How To Merge Multiple Rows Into Single Cell Based On Id And Then Count?

How to merge multiple rows into single cell based on id using PySpark? I have a dataframe with ids … Read more How To Merge Multiple Rows Into Single Cell Based On Id And Then Count?

Spark Request With Time

I want to make a request to find the most busy time of the day on average in 1-hour intervals. I ha… Read more Spark Request With Time

Creating Multiple Pyspark Dataframes From A Single Dataframe

I need to dynamically create multiple dataframes in pyspark based on the values available in the py… Read more Creating Multiple Pyspark Dataframes From A Single Dataframe

Gcp Dataproc Custom Image Python Environment

I have an issue when I create a DataProc custom image and Pyspark. My custom image is based on Data… Read more Gcp Dataproc Custom Image Python Environment

Return Rdd Of Largest N Values From Another Rdd In Spark

I'm trying to filter an RDD of tuples to return the largest N tuples based on key values. I nee… Read more Return Rdd Of Largest N Values From Another Rdd In Spark

Passing Array To Spark Lit Function

Let's say I have a numpy array a that contains the numbers 1-10: [1 2 3 4 5 6 7 8 9 10] I also … Read more Passing Array To Spark Lit Function

Check If Two Pyspark Rows Are Equal

I am writing unit tests for a Spark job, and some of the outputs are named tuples: pyspark.sql.Row … Read more Check If Two Pyspark Rows Are Equal

No Module Named Py4j.protocol On Eclipse (pydev)

I configured Eclipse in order to develop with Spark and Python. I configured : 1. PyDev with the … Read more No Module Named Py4j.protocol On Eclipse (pydev)

Issue In Encoding Non-numeric Feature To Numeric In Spark And Ipython

I am working on something where I have to make predictions for numeric data (monthly employee spend… Read more Issue In Encoding Non-numeric Feature To Numeric In Spark And Ipython

Pyspark Structured Streaming From Kafka Does Not Output To Console For Debugging

Below is my code. I have tried many different select variations, and yet the app runs, but without … Read more Pyspark Structured Streaming From Kafka Does Not Output To Console For Debugging

Number Of Lines With Number Of Words Less Than 5

Using pyspark, I would like to find number of lines that has number of words Solution 1: I think y… Read more Number Of Lines With Number Of Words Less Than 5

Run Different Classifiers/algorithms In Parallel Using Spark

I have a dataset and I wanted to test different classifiers in parallel using Spark with Python. Fo… Read more Run Different Classifiers/algorithms In Parallel Using Spark

Create A New Column In Pyspark Dataframe By Applying A Udf On Another Column From This Dataframe

My data is dataset diamond: +-----+-------+-----+-------+-----+-----+-----+----+----+----+ |carat| … Read more Create A New Column In Pyspark Dataframe By Applying A Udf On Another Column From This Dataframe

How To Assign A String Variable To A Dataframe Name

I had a problem, which is a for loop program.like below: list = [1,2,3,4] for index in list: n… Read more How To Assign A String Variable To A Dataframe Name