Technology

SeaweedFS

An open-source distributed storage system with an S3-compatible API, architecturally optimized for billions of small and large files with O(1) disk seek for any object lookup.

6 connections 3 resources

Summary

What it is

An open-source distributed storage system with an S3-compatible API, architecturally optimized for billions of small and large files with O(1) disk seek for any object lookup.

Where it fits

SeaweedFS addresses the small files problem at the storage engine level. Its architecture separates metadata (master) from data (volume servers), enabling fast lookup regardless of namespace size — a design well-suited for workloads with billions of small objects.

Misconceptions / Traps
  • Not just another MinIO clone. SeaweedFS has a fundamentally different architecture that separates metadata from data storage, providing fast lookup regardless of namespace size.
  • Community and ecosystem are smaller than MinIO or Ceph. Evaluate support and integration availability for your stack.
Key Connections
  • implements S3 API — S3-compatible interface
  • solves Small Files Problem — O(1) lookup architecture handles billions of small files
  • solves Vendor Lock-In — self-hosted S3-compatible alternative

Definition

What it is

An open-source, distributed storage system with S3 API compatibility, FUSE mount, and optimized handling of both small and large files. Designed for billions of files with fast lookup.

Why it exists

Traditional object stores struggle with billions of small files. SeaweedFS separates file metadata from content storage, enabling O(1) file lookup regardless of namespace size, making it ideal for workloads that S3's flat namespace struggles with.

Primary use cases

Image and media storage at scale, small file-intensive workloads, S3-compatible development environments, on-premise object storage.

Connections 6

Outbound 6
scoped_to2
S3Object Storage
implements1
S3 API
solves3
Small Files ProblemDirectory Namespace / Listing BottlenecksVendor Lock-In

Resources 3

GitHubHigh
github.com/seaweedfs/seaweedfs

Primary SeaweedFS repository for this distributed storage system supporting S3 API, FUSE mount, and Hadoop compatibility.

DocsHigh
github.com/seaweedfs/seaweedfs/wiki

SeaweedFS documentation wiki covering architecture, deployment, replication, and tiered storage configuration.

DocsHigh
github.com/seaweedfs/seaweedfs/wiki/Amazon-S3-API

SeaweedFS S3 API compatibility reference detailing supported S3 operations and configuration.