▲ 4 ▼ A rewrite of Disaster Recovery for Postgres in Go by @citusdata

A key part of running a reliable database service is ensuring you have a good plan for disaster recovery. Disaster recovery comes into play when disks or instances fail, and you need to be able to recover your data. In those type of cases logical backups, via pg_dump, may be days old and in such cases not ideal for you to restore from. To remove the risk of data loss, many of us turn to the Postgres WAL to keep safe.

Years ago Daniel Farina, now a principal engineer at Citus Data, authored a continuous archiving utility to make it easy for Postgres users to prepare for and recover from disasters. The tool, WAL-E, has been used to keep millions of Postgres databases safe. Today we’re excited to introduce an exciting new version of this tool: WAL-G. WAL-G, the successor to WAL-E, was created by a software engineering intern here at Citus Data, Katie Li, who is an undergraduate at UC Berkeley.