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Oct 25

PySpark Caching on Azure Databricks: cache() vs persist() vs checkpoint(), the Disk Cache, and When Caching Hurts

#databricks #pyspark #spark #dataengineering

6 min read

renanpyd

Oct 24

Como aprendi Apache Spark — Parte 6: Spark SQL e DataFrames — do código ao plano de execução

#pyspark #dataengineering #bigdata #cluster

15 min read

renanpyd

Oct 23

Como aprendi Apache Spark — Parte 4: Shuffle — onde a performance começa a ficar avançada

#dataengineering #bigdata #pyspark #spark

13 min read

renanpyd

Oct 23

Próximo: Parte 2 — Por dentro da arquitetura do Apache Spark: Driver, Executors, Jobs, Stages e Tasks

#pyspark #bigdata #dataengineering #spark

10 min read

renanpyd

Oct 23

Como aprendi Apache Spark — Parte 3: Partições, paralelismo e performance

#dataengineering #bigdata #pyspark #spark

13 min read

Oct 21

Auto Loader and Structured Streaming on Azure Databricks: Checkpoints, Schema Evolution, and Exactly-Once

#databricks #pyspark #dataengineering #azure

6 min read

Oct 20

Delta Lake MERGE in PySpark: Upserts, SCD Type 2, and the Traps Interviewers Ask About

#databricks #pyspark #dataengineering #deltalake

5 min read

Oct 24

PySpark Window Functions on Databricks: Latest-Record Dedup, Running Totals, Sessionisation, and the Frame Traps

#spark #databricks #pyspark #dataengineering

5 min read

Oct 19

Diagnosing and Fixing Data Skew in PySpark on Azure Databricks (2026 Edition)

#databricks #pyspark #dataengineering #spark

8 min read

Oct 21

Testing PySpark Data Quality in CI: A Practical Retail Media Example

#pyspark #dataengineering #testing #githubactions

5 min read

Oct 16

CDP-6001 in PySpark: Six Code Blocks Behind 58% of the Cloudera ML Engineer Exam

#cloudera #pyspark #machinelearning #mlops

8 min read

Jennifer Evangelista

Oct 24

Your Delta MERGE Is Not a Mind Reader

#apachespark #databricks #dataengineering #pyspark

6 min read

Oct 23

Spark Join Strategies on Databricks: Broadcast, Sort-Merge, Shuffle Hash, and What AQE Changes

#databricks #pyspark #spark #dataengineering

6 min read

Oct 22

Delta Lake Table Maintenance on Databricks: OPTIMIZE, Z-ORDER vs Liquid Clustering, and VACUUM

#databricks #deltalake #dataengineering #pyspark

6 min read

Oct 15

Building a Retail Media Analytics Pipeline with PySpark: Bronze, Silver, and Gold

#pyspark #dataengineering #analytics #python

5 min read

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