etcd is a distributed reliable key-value store for the most critical data of a distributed system.
etcd is a strongly consistent, distributed key-value store that provides a reliable way to store data that needs to be accessed by a distributed system or cluster of machines. It gracefully handles leader elections during network partitions and can tolerate machine failure, even in the leader node.
It uses the Raft consensus algorithm to manage a highly-available replicated log.
This is free and open source software.
Key Features
- Simple: well-defined, user-facing API (gRPC).
- Secure: automatic TLS with optional client cert authentication.
- Fast: benchmarked 10,000 writes/sec.
- Reliable: properly distributed using Raft.
- Optional SSL client certificate authentication.
- Optional TTLs for keys expiration.
Website: github.com/etcd-io/etcd
Support:
Developer: etcd Authors
License: Apache License 2.0
etcd is written in Go. Learn Go with our recommended free books and free tutorials.
Related Software
| Service Discovery | |
|---|---|
| etcd | Distributed reliable key-value store |
| Consul | Offers service discovery, service mesh, traffic management, and more |
| Nacos | Dynamic service discovery, configuration management, and service governance |
| Eureka | RESTful (Representational State Transfer) service |
| Serf | Decentralized membership, failure detection and orchestration |
| ZooKeeper | Centralized service for maintaining configuration information |
| Avahi | Implements zero-configuration networking using mDNS/DNS-SD |
| dnsdock | DNS server for automatic docker container discovery |
Read our verdict in the software roundup.
| Key Value Stores | |
|---|---|
| Redis | In-memory data structure store |
| etcd | Distributed reliable key-value store |
| RocksDB | Persistent key-value store for flash and RAM Storage |
| Valkey | High-performance data structure server |
| Apache Cassandra | Distributed database management system |
| ScyllaDB | Real-time big data database |
| Apache Accumulo | Based on Google's BigTable design |
| ArangoDB | Native multi-model database |
| Aerospike CE | Real-time NoSQL database and key-value store |
| BadgerDB | Embeddable key-value database |
| Berkeley DB | Family of open source, embeddable databases |
| TiKV | Distributed transactional key-value database |
| LevelDB | Fast and lightweight key/value database library by Google |
| Garnet | Remote cache-store |
| KeyDB | High performance fork of Redis |
| Redict | Distributed key/value store |
| Kvrocks | Distributed key-value NoSQL database |
| Project Voldemort | Distributed data store |
| Scalaris | Distributed transactional key-value store |
Read our verdict in the software roundup.
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