SeaweedFS is a fast distributed storage system for blobs, objects, files, and data lake, for billions of files! Blob store has O(1) disk seek, cloud tiering. Filer supports Cloud Drive, cross-DC active-active replication, Kubernetes, POSIX FUSE mount, S3 API, S3 Gateway, Hadoop, WebDAV, encryption, Erasure Coding.

Ceph is a distributed object, block, and file storage platform

Streaming replication for SQLite.

Sync little subsets of your Postgres data into local apps and services.

MySQL replication topology management and HA

CloudNativePG is a comprehensive platform designed to seamlessly manage PostgreSQL databases within Kubernetes environments, covering the entire operational lifecycle from initial deployment to ongoing maintenance

Gluster Filesystem : Build your distributed storage in minutes

Continuous Archiving for Postgres

These are policy-driven snapshot management and replication tools which use OpenZFS for underlying next-gen storage. (Btrfs support plans are shelved unless and until btrfs becomes reliable.)

Official MyDumper Project

A list of papers about distributed consensus.

比 MySQL 和 MongoDB 快10倍的 OLTP 关系数据库和文档数据库

💫 The easy way to synchronize the DNS configuration of two Pi-hole 5.x instances.

A distributed data integration framework that simplifies common aspects of big data integration such as data ingestion, replication, organization and lifecycle management for both streaming and batch data ecosystems.

X-Pipe是由携程框架部门研发的Redis多数据中心复制管理系统。基于Redis的Master-Slave复制协议，实现低延时、高可用的Redis多数据中心、跨公网数据复制，并且提供一键机房切换，复制监控、异常报警等功能。开源版本和携程内部生产环境版本一致。

A distributed SQLite replicator built on top of NATS

Automated database platform for PostgreSQL® — the open-source alternative to cloud-managed databases.

MongoShake is a universal data replication platform based on MongoDB's oplog. Redundant replication and active-active replication are two most important functions. 基于mongodb oplog的集群复制工具，可以满足迁移和同步的需求，进一步实现灾备和多活功能。

A lightweight replication manager for PostgreSQL (Postgres)

JSON output plugin for changeset extraction