Mirroristas/etcd
2
0
Fork 0
mirror of https://github.com/etcd-io/etcd.git synced 2024-09-27 06:25:44 +00:00
Code Issues Packages Projects Releases Wiki Activity

docs: describe the lifetime of discovery url

Browse Source
This commit is contained in:
Yicheng Qin 2014-11-05 18:15:23 -08:00
parent 3fc6f9c24f
commit 5d755bd54a
1 changed files with 8 additions and 0 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

8
Documentation/0.5/clustering.md
View File

@ -83,6 +83,14 @@ exit 1
In a number of cases you might not know the IPs of your cluster peers ahead of time. This is common when utilizing cloud providers or when your network uses DHCP. In these cases you can use an existing etcd cluster to bootstrap a new one. We call this process "discovery".
### Lifetime of a Discovery URL
A discovery URL identifies a unique etcd cluster. Instead of reusing a discovery URL, you should always create discovery URLs for new clusters.
Moreover, discovery URLs should ONLY be used for the initial bootstrapping of a cluster. To change cluster membership after the cluster is already running, see the [runtime reconfiguration][runtime] guide.
[runtime]: https://github.com/coreos/etcd/blob/master/Documentation/0.5/runtime-configuration.md
### Custom etcd discovery service
Discovery uses an existing cluster to bootstrap itself. If you are using your own etcd cluster you can create a URL like so: