Etcd - Revision history

Donsez: /* First steps */

2015-06-01T21:08:12Z

First steps

← Older revision		Revision as of 21:08, 1 June 2015
Line 55:		Line 55:
	--version, -v print the version		--version, -v print the version
	--help, -h show help		--help, -h show help
			</pre>

			<pre>
	core@core-01 ~ $ etcdctl set /message Hello		core@core-01 ~ $ etcdctl set /message Hello
	Hello		Hello

Donsez at 21:07, 1 June 2015

2015-06-01T21:07:33Z

@@ Line 13: / Line 13: @@
 * Atomic test and set
 * Easily listen for changes to a prefix via HTTP long-polling
 Related: [[CoreOS]]
@@ Line 19: / Line 23: @@
 <pre>
 core@core-01 ~ $ etcdctl set /message Hello
 Hello

Donsez at 20:59, 1 June 2015

2015-06-01T20:59:35Z

← Older revision		Revision as of 20:59, 1 June 2015
Line 15:		Line 15:

	Related: [[CoreOS]]		Related: [[CoreOS]]

			=First steps=

			<pre>
			core@core-01 ~ $ etcdctl set /message Hello
			Hello
			core@core-01 ~ $ etcdctl rm /message

			core@core-01 ~ $ etcdctl set /message Hello
			Hello
			core@core-01 ~ $ etcdctl get /message
			Titi
			core@core-01 ~ $ etcdctl rm /message

			core@core-01 ~ $ etcdctl set /message Hello
			Hello
			core@core-01 ~ $ etcdctl ls
			/coreos.com
			/first-etcd-key
			core@core-01 ~ $ etcdctl ls /
			/first-etcd-key
			/coreos.com
			core@core-01 ~ $ etcdctl ls /message
			Error: 100: Key not found (/message) [2977]
			core@core-01 ~ $ etcdctl set /message Hello
			Hello
			core@core-01 ~ $ etcdctl ls /
			/coreos.com
			/first-etcd-key
			/message
			core@core-01 ~ $ etcdctl watch /message --recursive
			Titi
			core@core-01 ~ $ etcdctl set /message "Hi" --swap-with-value "Hello"
			Hi
			core@core-01 ~ $ etcdctl set /message "Expiring Soon" --ttl 20
			Expiring Soon
			</pre>

			<pre>
			core@core-02 ~ $ etcdctl get /message
			Hello
			core@core-02 ~ $ etcdctl get /message
			Error: 100: Key not found (/message) [2830]
			core@core-02 ~ $ etcdctl get /message
			Hello
			core@core-02 ~ $ etcdctl set /message Titi
			Titi
			core@core-02 ~ $ etcdctl get /message
			Titi
			core@core-02 ~ $ etcdctl get /message
			Error: 100: Key not found (/message) [2883]

			core@core-02 ~ $ curl -L -X DELETE http://127.0.0.1:4001/v2/keys/message
			{"errorCode":100,"message":"Key not found","cause":"/message","index":2902}

			core@core-02 ~ $ curl -L -X DELETE http://127.0.0.1:4001/v2/keys/message
			{"action":"delete","node":{"key":"/message","modifiedIndex":2909,"createdIndex":2906},"prevNode":{"key":"/message","value":"Hello","modifiedIndex":2906,"createdIndex":2906}}

			core@core-02 ~ $ curl -L -X DELETE http://127.0.0.1:4001/v2/keys/me

			core@core-02 ~ $ etcdctl set /message Titi
			Titi
			core@core-02 ~ $ etcdctl set /message Titi
			Titi
			core@core-02 ~ $ etcdctl set /message Hi
			Hi
			core@core-02 ~ $ etcdctl set /message Hello
			Hello
			core@core-02 ~ $ etcdctl watch /message --recursive
			Hi
			core@core-02 ~ $ etcdctl get /message
			Expiring Soon
			core@core-02 ~ $ etcdctl get /message
			Expiring Soon
			core@core-02 ~ $ etcdctl get /message
			Expiring Soon
			core@core-02 ~ $ etcdctl get /message
			Expiring Soon
			core@core-02 ~ $ etcdctl get /message
			Expiring Soon
			core@core-02 ~ $ etcdctl get /message
			Error: 100: Key not found (/message) [3112]
			</pre>

Donsez at 20:23, 1 June 2015

2015-06-01T20:23:49Z

← Older revision		Revision as of 20:23, 1 June 2015
Line 9:		Line 9:
	* Optional SSL client cert authentication		* Optional SSL client cert authentication
	* Benchmarked 1000s of writes/s per instance		* Benchmarked 1000s of writes/s per instance
	* Properly distributed using Raft protocol		* Properly distributed using [[Raft]] protocol
	* Keys support TTL		* Keys support TTL
	* Atomic test and set		* Atomic test and set

Donsez: Created page with "https://coreos.com/using-coreos/etcd/ etcd is an open-source distributed key value store that provides the backbone of CoreOS clusters and the etcd client runs on each machin..."

2014-12-16T11:08:21Z

Created page with "https://coreos.com/using-coreos/etcd/ etcd is an open-source distributed key value store that provides the backbone of CoreOS clusters and the etcd client runs on each machin..."

New page

https://coreos.com/using-coreos/etcd/

etcd is an open-source distributed key value store that provides the backbone of CoreOS clusters and the etcd client runs on each machine in a cluster. etcd gracefully handles master election during network partitions and the loss of the current master.

Your applications can read and write data into etcd. Common examples are storing database connection details, cache settings, feature flags, and more.
Features

* Simple, curl-able API (HTTP + JSON)
* Optional SSL client cert authentication
* Benchmarked 1000s of writes/s per instance
* Properly distributed using Raft protocol
* Keys support TTL
* Atomic test and set
* Easily listen for changes to a prefix via HTTP long-polling

Related: [[CoreOS]]