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Tracking BZ for updating to latest etcd. 
- questionable transitive dependency from latest k8's 
- updated performance analysis
-- upstream details: 
   https://gist.github.com/yichengq/fbc2028a710887a86ff9
   https://gist.github.com/yichengq/c89f8b7215b29c0974be

- documentation on clustering vs. single node?

depends on golang 1.4 : https://github.com/coreos/etcd/issues/2524

please ensure that we use etcd 2.0.9 , re: https://github.com/coreos/etcd/pull/2622

we are at etcd 2.0.9 now

# rpm -q etcd
etcd-2.0.9-2.el7.x86_64
# etcdctl set /key/message hello
hello
# etcdctl get /key/message 
hello
# etcdctl rm /key/message 

#

Since the problem described in this bug report should be
resolved in a recent advisory, it has been closed with a
resolution of ERRATA.

For information on the advisory, and where to find the updated
files, follow the link below.

If the solution does not work for you, open a new bug report.

https://rhn.redhat.com/errata/RHBA-2015-0942.html