Gyuho Lee c72fa51b2a scripts: remove ".aci" commands %!s(int64=5) %!d(string=hai) anos
..
benchmarks ca47aab373 *: fix typos in markdown docs %!s(int64=6) %!d(string=hai) anos
dev c72fa51b2a scripts: remove ".aci" commands %!s(int64=5) %!d(string=hai) anos
platforms 49fe77eea0 Documentation/v2: 'etcd v2' to the title %!s(int64=7) %!d(string=hai) anos
rfc a621d807f0 documentation: initial metadata additions for website generation (#10596) %!s(int64=5) %!d(string=hai) anos
04_to_2_snapshot_migration.md a621d807f0 documentation: initial metadata additions for website generation (#10596) %!s(int64=5) %!d(string=hai) anos
README.md a621d807f0 documentation: initial metadata additions for website generation (#10596) %!s(int64=5) %!d(string=hai) anos
admin_guide.md a621d807f0 documentation: initial metadata additions for website generation (#10596) %!s(int64=5) %!d(string=hai) anos
api.md a621d807f0 documentation: initial metadata additions for website generation (#10596) %!s(int64=5) %!d(string=hai) anos
api_v3.md a621d807f0 documentation: initial metadata additions for website generation (#10596) %!s(int64=5) %!d(string=hai) anos
auth_api.md a621d807f0 documentation: initial metadata additions for website generation (#10596) %!s(int64=5) %!d(string=hai) anos
authentication.md a621d807f0 documentation: initial metadata additions for website generation (#10596) %!s(int64=5) %!d(string=hai) anos
backward_compatibility.md a621d807f0 documentation: initial metadata additions for website generation (#10596) %!s(int64=5) %!d(string=hai) anos
branch_management.md a621d807f0 documentation: initial metadata additions for website generation (#10596) %!s(int64=5) %!d(string=hai) anos
clustering.md a621d807f0 documentation: initial metadata additions for website generation (#10596) %!s(int64=5) %!d(string=hai) anos
configuration.md a621d807f0 documentation: initial metadata additions for website generation (#10596) %!s(int64=5) %!d(string=hai) anos
discovery_protocol.md a621d807f0 documentation: initial metadata additions for website generation (#10596) %!s(int64=5) %!d(string=hai) anos
docker_guide.md a621d807f0 documentation: initial metadata additions for website generation (#10596) %!s(int64=5) %!d(string=hai) anos
errorcode.md a621d807f0 documentation: initial metadata additions for website generation (#10596) %!s(int64=5) %!d(string=hai) anos
etcd_alert.rules 5ae04259c4 Documentation: alert.rules. fix labels bug %!s(int64=7) %!d(string=hai) anos
etcd_alert.rules.yml 10a863aac2 Documentation/op-guide: Add rules for Prometheus 2.0 %!s(int64=6) %!d(string=hai) anos
faq.md 49fe77eea0 Documentation/v2: 'etcd v2' to the title %!s(int64=7) %!d(string=hai) anos
glossary.md 49fe77eea0 Documentation/v2: 'etcd v2' to the title %!s(int64=7) %!d(string=hai) anos
internal-protocol-versioning.md 49fe77eea0 Documentation/v2: 'etcd v2' to the title %!s(int64=7) %!d(string=hai) anos
libraries-and-tools.md e235cd3302 Documentation: update github links %!s(int64=6) %!d(string=hai) anos
members_api.md 49fe77eea0 Documentation/v2: 'etcd v2' to the title %!s(int64=7) %!d(string=hai) anos
metrics.md 6ef7c5f462 Documentation/v2/metrics.md: Fix a typo %!s(int64=6) %!d(string=hai) anos
other_apis.md f77e54eb13 api/etcdhttp: change /health type back to string for backwards compatibility %!s(int64=6) %!d(string=hai) anos
production-users.md 49fe77eea0 Documentation/v2: 'etcd v2' to the title %!s(int64=7) %!d(string=hai) anos
proxy.md e235cd3302 Documentation: update github links %!s(int64=6) %!d(string=hai) anos
reporting_bugs.md a621d807f0 documentation: initial metadata additions for website generation (#10596) %!s(int64=5) %!d(string=hai) anos
runtime-configuration.md a621d807f0 documentation: initial metadata additions for website generation (#10596) %!s(int64=5) %!d(string=hai) anos
runtime-reconf-design.md a621d807f0 documentation: initial metadata additions for website generation (#10596) %!s(int64=5) %!d(string=hai) anos
security.md a621d807f0 documentation: initial metadata additions for website generation (#10596) %!s(int64=5) %!d(string=hai) anos
tuning.md a621d807f0 documentation: initial metadata additions for website generation (#10596) %!s(int64=5) %!d(string=hai) anos
upgrade_2_1.md a621d807f0 documentation: initial metadata additions for website generation (#10596) %!s(int64=5) %!d(string=hai) anos
upgrade_2_2.md a621d807f0 documentation: initial metadata additions for website generation (#10596) %!s(int64=5) %!d(string=hai) anos
upgrade_2_3.md a621d807f0 documentation: initial metadata additions for website generation (#10596) %!s(int64=5) %!d(string=hai) anos

README.md


title: Documentation

etcd is a distributed key-value store designed to reliably and quickly preserve and provide access to critical data. It enables reliable distributed coordination through distributed locking, leader elections, and write barriers. An etcd cluster is intended for high availability and permanent data storage and retrieval.

This is the etcd v2 documentation set. For more recent versions, please see the etcd v3 guides.

Communicating with etcd v2

Reading and writing into the etcd keyspace is done via a simple, RESTful HTTP API, or using language-specific libraries that wrap the HTTP API with higher level primitives.

Reading and Writing

Security, Auth, Access control

etcd v2 Cluster Administration

Configuration values are distributed within the cluster for your applications to read. Values can be changed programmatically and smart applications can reconfigure automatically. You'll never again have to run a configuration management tool on every machine in order to change a single config value.

General Info

Initial Setup

Live Reconfiguration

Debugging etcd

Migration