h-w-chen / regionless-storage-service

A geo-distributed regionless metadata storage service

Regionless KV Service (RKV)

What Is RKV?

RKV overcomes various limitations of ETCD (e.g., storage capacity), and provides a "regionless" style storage service for large scale geo-distributed platform such as Centaurus Arktos. Versioned key-value pairs are managed (geo-partition, replicated with flexible consistency) and exposed for access with compatible APIs of ETCD such as range query and list-watch.

Highlighted Features

• Region-agnostic data access API
• Partitioned and horrizontally scalable data storage with open backend store options
• Replicated for HA and fast data access
• Versioned key-value pairs
• CRUD APIs together with range query and list-watch
• Supporting batch KV access (aka "txn" in ETCD)
• Flexible (Configurable) replication consistency including (but not limited to) linearizability, sequential, "session", and eventual consistency
• Smart caching for high performance data access

Data Model

Architecture

Setup Guide

A one-click deploy script is provided to provision a full set of running RKV with multiple backend storage instances from multiple regions. Here is the setup guide.

Community Meetings

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