<html><head></head><body style="word-wrap: break-word; -webkit-nbsp-mode: space; -webkit-line-break: after-white-space; "><br><div><div>On Apr 10, 2012, at 3:04 PM, Justin Santa Barbara wrote:</div><br class="Apple-interchange-newline"><blockquote type="cite"><div class="gmail_quote"><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex"><div class="im">Having the ability to read config data from a runtime changeable</div>
metadata server (rather then a config file on an injected disk) serves a<br>
use case I am interested in. The only problem is horizontal scalability<br>
of the metadata server in this model which may not be a problem with<br>
some tinkering.<br></blockquote><div><br></div>Can you please share that use case? I'm especially interested in finding use cases that would not better be better served by e.g. SSH or Zookeeper or Corosync..</div></blockquote><br></div><div>One advantage of a network metadata channel is it allows for communication with cloud provider services without having to put a key into the vm. In other words, the vm can be authenticated via its ipv6 address.</div><div><br></div><div>Vish</div><br></body></html>