Etcd

etcd is a distributed key-value store and configuration store designed to maintain a consistent set of data across a cluster of nodes. It functions as a reliable registry for storing and synchronizing critical settings and metadata used by distributed applications.

The system implements the Raft consensus algorithm to ensure data consistency and leader election across servers. To protect data transfers and verify node identities, it utilizes a network security layer based on mutual TLS and client certificates.

Its capabilities cover distributed configuration management, cluster state synchronization, and distributed service discovery.

Features

Distributed Key-Value Stores - Provides a distributed key-value store for synchronizing critical system settings across a cluster.

Write Acknowledgement Strategies - Uses quorum-based write validation to ensure data durability and consistency across replicas.

Distributed Consensus Stores - Ensures cluster-wide data consistency through a consensus-based storage layer.

Distributed Configuration Management - Synchronizes operational state, policies, and configuration settings across a distributed environment.

Cluster State Coordinators - Coordinates global cluster state and metadata across multiple nodes for fault tolerance.

Raft Consensus Implementations - Implements the Raft consensus algorithm to manage replicated logs and leader election.

Distributed Key-Value Stores - Maintains a consistent and replicated key-value storage system for high availability.

Multi-Version Concurrency Control - Implements multi-version concurrency control to allow consistent snapshots and non-blocking read operations.

gRPC Interfaces - Provides a gRPC communication layer using Protocol Buffers and HTTP/2 for cluster and client interaction.

Service Discovery - Provides a reliable registry for services to identify and locate each other within a cluster.

Cluster Communication Security - Secures internal cluster communication using mutual TLS and certificate-based identity verification.

Mutual TLS Configurations - Uses mutual TLS configurations and client certificates to encrypt traffic and verify node identities.

Databases and Storage - A distributed, reliable key-value store for configuration and service discovery.

Distributed Coordination - Distributed key-value store for shared configuration.

Cloud Orchestration - Distributed key-value store for service discovery and configuration.

Distributed Systems - Raft consensus protocol implementation.

Distributed Systems and RPC - Distributed key-value store for configuration and service discovery.

Server Applications - Distributed key-value store for configuration and discovery.

Server Applications and Infrastructure - Distributed key-value store for configuration and discovery.

Configuration and Discovery - Highly-available key-value store for shared configuration and service discovery.

Distributed Systems - Distributed key-value store using Raft.

coreosetcd

Features

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