Blog

2025

• Export Prometheus metrics for Databricks and Spark

2024

• Notes on Go GC and Java GC

2023

• Catalog config for Iceberg & Delta Lake & Hudi
• Managed table’s location for Spark & Hive

2022

• Binary Encoding Comparison of Avro and Protocol Buffer
• Spark mapPartitions and Iterator
• Use CASE to combine stages in Spark SQL
• Basic knowledge of UUID
• Convert BSON to Parquet
• Comparison of Parquet and ORC

2021

• Summary of GFS
• Summary of MapReduce
• Summary of Bigtable
• A Journey of Redis
• A Journey of Memcached