文件名称：Presto_SQL_on_Everything.pdf
文件大小：543KB
文件格式：PDF
更新时间：2022-07-04 13:13:45
presto
Presto is an open source distributed query engine that supports much of the SQL analytics workload at Facebook. Presto is designed to be adaptive, flexible, and extensible. It supports a wide variety of use cases with diverse characteristics. These range from user-facing reporting applications with subsecond latency requirements to multi-hour ETL jobs that aggregate or join terabytes of data. Presto’s Connector API allows plugins to provide a high performance I/O interface to dozens of data sources, including Hadoop data warehouses, RDBMSs, NoSQL systems, and stream processing systems. In this paper, we outline a selection of use cases that Presto supports at Facebook. We then describe its architecture and implementation, and call out features and performance optimizations that enable it to support these use cases. Finally, we present performance results that demonstrate the impact of our main design decisions. Index Terms—SQL, query engine, big data, data warehouse