Unclear how to configure new node when adding member to cluster

[bcwaldon]

I've started a single-node cluster:

% ./bin/etcd -name=uno -initial-cluster=uno=http://127.0.0.1:2380
2014/10/29 13:57:37 etcd: no data-dir provided, using default data-dir ./uno.etcd
2014/10/29 13:57:37 etcdserver: start node bc3f316962a4ce82 in cluster 9dbd6201abd472d6
2014/10/29 13:57:37 etcd: listening for peers on http://localhost:2380
2014/10/29 13:57:37 etcd: listening for peers on http://localhost:7001
2014/10/29 13:57:37 etcd: listening for client requests on http://localhost:2379
2014/10/29 13:57:37 etcd: listening for client requests on http://localhost:4001
2014/10/29 13:57:38 raft: leader changed from 0 to bc3f316962a4ce82
2014/10/29 13:57:38 etcdserver: published {Name:uno ClientURLs:[http://localhost:2379 http://localhost:4001]} to cluster 9dbd6201abd472d6

I want to add a node, so I make the following API request:

% curl -X POST http://127.0.0.1:4001/v2/admin/members -H "Content-Type: application/json" -d '{"peerURLs":["http://127.0.0.1:8080"]}'
{"id":"81adb4cd6185c55c","peerURLs":["http://127.0.0.1:8080"]}

Now it is unclear what args I actually need to use in order to join the cluster. What would the necessary invocation of etcd be here to bring up a new node in this cluster with the peerURL http://127.0.0.1:8080?

[yichengq]

i think you should use

./bin/etcd -name ufo -listen-client-urls http://127.0.0.1:4004 -advertise-client-urls http://127.0.0.1:4004 -listen-peer-urls http://127.0.0.1:8080 -initial-cluster 'uno=http://127.0.0.1:2380,ufo=http://http://127.0.0.1:8080' -initial-cluster-state existing

more example here:
#1383 (comment)

we need to update the doc for this.

[xiang90]

duplicated with #1418

[372046933]

It seems that you cannot add member to a single member cluster