Consul is a distributed, highly available, and data center aware solution to connect and configure applications across dynamic, distributed infrastructure. https://www.consul.io
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Pierre Souchay 51b33ef015 [Performance On Large clusters] Reduce updates on large services (#4720)
* [Performance On Large clusters] Checks do update services/nodes only when really modified to avoid too many updates on very large clusters

In a large cluster, when having a few thousands of nodes, the anti-entropy
mechanism performs lots of changes (several per seconds) while
there is no real change. This patch wants to improve this in order
to increase Consul scalability when using many blocking requests on
health for instance.

* [Performance for large clusters] Only updates index of service if service is really modified

* [Performance for large clusters] Only updates index of nodes if node is really modified

* Added comments / ensure IsSame() has clear semantics

* Avoid having modified boolean, return nil directly if stutures are Same

* Fixed unstable unit tests TestLeader_ChangeServerID

* Rewrite TestNode_IsSame() for better readability as suggested by @banks

* Rename ServiceNode.IsSame() into IsSameService() + added unit tests

* Do not duplicate TestStructs_ServiceNode_Conversions() and increase test coverage of IsSameService

* Clearer documentation in IsSameService

* Take into account ServiceProxy into ServiceNode.IsSameService()

* Fixed IsSameService() with all new structures
2018-10-11 12:42:39 +01:00
.github Contribution guide (#4704) 2018-10-05 09:06:40 -07:00
acl Rewrite all of acl_test.go 2018-07-24 20:29:34 -04:00
agent [Performance On Large clusters] Reduce updates on large services (#4720) 2018-10-11 12:42:39 +01:00
api Added SOA configuration for DNS settings. (#4714) 2018-10-10 15:50:56 -04:00
bench Gets benchmarks running again and does a rough pass for 0.7.1. 2016-11-29 13:02:26 -08:00
build-support Bump Go version for CI and build to 1.11.1 (#4782) 2018-10-11 12:21:53 +01:00
command merge feedback: fix typos; actually use deliverLatest added previously but not plumbed in 2018-10-10 16:55:34 +01:00
connect merge feedback: fix typos; actually use deliverLatest added previously but not plumbed in 2018-10-10 16:55:34 +01:00
demo demo: Added udp port forwarding 2018-05-30 13:56:56 +09:00
ipaddr New config parser, HCL support, multiple bind addrs (#3480) 2017-09-25 11:40:42 -07:00
lib Refactor to use embedded struct. 2018-06-25 12:25:39 -07:00
logger Connect Envoy Command (#4735) 2018-10-10 16:55:34 +01:00
sentinel Renames stubs to be more consistent. 2017-11-29 18:36:52 -08:00
service_os Changes made : 2018-06-28 21:18:14 -04:00
snapshot Removes timeout when restoring snapshots. 2017-12-13 14:10:54 -08:00
terraform Spelling (#3958) 2018-03-19 16:56:00 +00:00
test Update test certificates that expire this year to be way in the future 2018-05-12 10:15:45 +01:00
testrpc Bugfix: Use "%#v" when formatting structs (#4600) 2018-08-28 12:37:34 -04:00
testutil Improve resilience of api pkg tests (#4676) 2018-09-18 17:47:01 +01:00
tlsutil 🐛 Formatting changes only; add missing trailing commas 2018-03-15 10:19:46 -07:00
types Removes remoteConsuls in favor of the new router. 2017-03-16 16:42:19 -07:00
ui update ffi to dodge CVE-2018-1000201 (#4670) 2018-09-14 11:22:48 +02:00
ui-v2 ui: Improve layout of node cards on large and small screens (#4761) 2018-10-11 10:19:06 +01:00
vendor xDS Server Implementation (#4731) 2018-10-10 16:55:34 +01:00
version Putting source back into Dev Mode 2018-09-13 16:35:46 +00:00
watch Add -sidecar-for and new /agent/service/:service_id endpoint (#4691) 2018-10-10 16:55:34 +01:00
website Be more explicit about rolling upgrade process 2018-10-11 11:44:20 +01:00
.dockerignore Update the scripting 2018-06-14 21:42:47 -04:00
.gitignore merge feedback: fix typos; actually use deliverLatest added previously but not plumbed in 2018-10-10 16:55:34 +01:00
.travis.yml Bump Go version for CI and build to 1.11.1 (#4782) 2018-10-11 12:21:53 +01:00
CHANGELOG.md f-envoy branch CHANGELOG entries 2018-10-11 11:21:42 +01:00
GNUmakefile Improve resilience of api pkg tests (#4676) 2018-09-18 17:47:01 +01:00
INTERNALS.md docs: correct link to top level agent package (#4750) 2018-10-04 09:15:55 -05:00
LICENSE Initial commit 2013-11-04 14:15:27 -08:00
NOTICE.md add copyright notice file 2018-07-09 10:58:26 -07:00
README.md Contribution guide (#4704) 2018-10-05 09:06:40 -07:00
Vagrantfile Adds a basic Linux Vagrant setup, stolen from Nomad. 2017-10-06 08:10:12 -07:00
main.go Abandon daemonize for simpler solution (preserving history): 2018-06-25 12:24:10 -07:00
main_test.go Adding basic CLI infrastructure 2013-12-19 11:22:08 -08:00

README.md

Consul Build Status Join the chat at https://gitter.im/hashicorp-consul/Lobby

Consul is a tool for service discovery and configuration. Consul is distributed, highly available, and extremely scalable.

Consul provides several key features:

  • Service Discovery - Consul makes it simple for services to register themselves and to discover other services via a DNS or HTTP interface. External services such as SaaS providers can be registered as well.

  • Health Checking - Health Checking enables Consul to quickly alert operators about any issues in a cluster. The integration with service discovery prevents routing traffic to unhealthy hosts and enables service level circuit breakers.

  • Key/Value Storage - A flexible key/value store enables storing dynamic configuration, feature flagging, coordination, leader election and more. The simple HTTP API makes it easy to use anywhere.

  • Multi-Datacenter - Consul is built to be datacenter aware, and can support any number of regions without complex configuration.

  • Service Segmentation - Consul Connect enables secure service-to-service communication with automatic TLS encryption and identity-based authorization.

Consul runs on Linux, Mac OS X, FreeBSD, Solaris, and Windows. A commercial version called Consul Enterprise is also available.

Please note: We take Consul's security and our users' trust very seriously. If you believe you have found a security issue in Consul, please responsibly disclose by contacting us at security@hashicorp.com.

Quick Start

An extensive quick start is viewable on the Consul website:

https://www.consul.io/intro/getting-started/install.html

Documentation

Full, comprehensive documentation is viewable on the Consul website:

https://www.consul.io/docs

Contributing

Thank you for your interest in contributing! Please refer to CONTRIBUTING.md for guidance.