AWS Database Blog

Tag: autovacuum

Understanding autovacuum in Amazon RDS for PostgreSQL environments

January 2024: This post was reviewed and updated for accuracy. PostgreSQL has become the preferred open-source relational database for many enterprise developers and startups, and powers leading business and mobile applications. Amazon Web Services (AWS) offers Amazon Relational Database Service (Amazon RDS) and Amazon Aurora as fully managed relational database services. Amazon RDS for PostgreSQL […]

A Case Study of Tuning Autovacuum in Amazon RDS for PostgreSQL

In a PostgreSQL database, the autovacuum process performs multiple critical maintenance operations. In addition to freezing the transaction ID to prevent it from wraparound, autovacuum also removes dead tuples to recover space usage. For databases with a high volume of write operations, it is recommended that you tune autovacuum to run frequently. Doing this helps […]