This article explores the relationship between Presto, Hive, and Alluxio in executing SQL queries on data lakes. It covers topics such as the SQL lifecycle in Hive and Presto, how Presto loads the Alluxio Client JAR, and how Presto triggers Alluxio's position read operation.
Table of contents
1. An Overview of the SQL Lifecycle2. When and How Does Presto Load the Alluxio Client JAR?3. How Does Presto Know the Exact Filesystem Class To Use According To Different LOCATION Schemas?4. How Does Presto Trigger Alluxio’s Position Read Operation?5. Summary50 Impressions