TSDB

This directory contains the Prometheus storage layer that is used in its 2.x releases.

A writeup of its design can be found here.

Based on the Gorilla TSDB white papers.

Video: Storing 16 Bytes at Scale from PromCon 2017.

See also the format documentation.

A series of blog posts explaining different components of TSDB:

• The Head Block
• WAL and Checkpoint
• Memory Mapping of Head Chunks from Disk
• Persistent Block and its Index