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Popular Articles
Unexpected cluster termination
Sometimes a cluster is terminated unexpectedly, not as a result of a manual termi...
Spark job fails with Driver is temporarily unavailable
Problem When running notebooks or jobs on a cluster, they run successfully multip...
Apache Spark job fails with Parquet column cannot be converted error
Problem You are reading data in Parquet format and writing to a Delta table when ...
Create a DataFrame from a JSON string or Python dictionary
In this article we are going to review how you can create an Apache Spark DataFra...
Append to a DataFrame
To append to a DataFrame, use the union method. %scala val firstDF = spark.range(...
Get and set Apache Spark configuration properties in a notebook
In most cases, you set the Spark config (AWS | Azure ) at the cluster level. Howe...
Prevent duplicated columns when joining two DataFrames
If you perform a join in Spark and don’t specify your join correctly you’ll end u...
How to improve performance of Delta Lake MERGE INTO queries using partition pruning
This article explains how to trigger partition pruning in Delta Lake MERGE INTO (...
Generate unique increasing numeric values
This article shows you how to use Apache Spark functions to generate unique incre...
Forbidden error while accessing S3 data
Problem While trying to access S3 data using DBFS mount or directly in Spark APIs...