/plushcap/analysis/peerdb/how-can-we-make-pgdump-and-pgrestore-5-times-faster

How can we make pg_dump and pg_restore 5 times faster?

What's this blog post about?

The text discusses how to make pg_dump and pg_restore 5 times faster. These tools are essential for backing up and restoring Postgres databases but can be slow for large tables due to their single-threaded nature at the table level. Parallel Snapshotting is an idea that could make these tools multi-threaded at the single table level by logically partitioning the table based on CTIDs and copying multiple partitions simultaneously. PeerDB, an open-source Postgres replication tool, has already implemented this concept. Through Parallel Snapshotting, a 1.5TB table can be migrated 5 times faster than using pg_dump and pg_restore alone.

Company
PeerDB

Date published
April 25, 2024

Author(s)
Sai Srirampur

Word count
1208

Language
English

Hacker News points
83


By Matt Makai. 2021-2024.