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1. “Improving the scalability of a Spark pipeline for conversion attribution”

   2019-07-26 Tags: spark, etl, performance, scala, pinterest by klotz
2. “Spark UDF — Deep insights in performance”

   2019-07-23 Tags: spark, usf, etl, performance, python, benchmark by klotz
3. Create your first ETL Pipeline in Apache Spark and Python

   2019-06-10 Tags: spark, python, etl, introduction, tutorial by klotz
4. Data Science & Engineering Platform: Data Lineage and Provenance for Apache Spark - Hortonworks

   2018-12-12 Tags: spark, etl, provenance by klotz
5. ORC Creation Best Practices - Hortonworks

   -set hive.exec.orc.split.strategy=ETL; -- this will work only for specific values scan, if full table scan will be required anyway, use default (HYBRID) or BI.

   2017-06-12 Tags: spark, hadoop, orc, hive, performance, tuning, etl, bi, hybrid by klotz
6. Transformation Processing Smackdown; Spark vs Hive vs Pig

   2017-02-27 Tags: pig, hive, spark, etl, rosetta by klotz
7. scala - Dropping a nested column from Spark DataFrame - Stack Overflow

   2016-12-16 Tags: spark, scala, etl, column, dataframe by klotz

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