<html>
<head>
<meta content="text/html; charset=ISO-8859-1"
http-equiv="Content-Type">
</head>
<body bgcolor="#FFFFFF" text="#000000">
On 05/16/2013 05:02 PM, Aaron Rosen wrote:
<blockquote
cite="mid:CANAD0X-g+02f-pp3J72PgWrXwuJzPTjR5b61eVdq6z5kC=7quQ@mail.gmail.com"
type="cite">
<div dir="ltr"><br>
<div class="gmail_extra"><br>
<br>
<div class="gmail_quote">On Wed, May 15, 2013 at 10:59 PM,
Gary Kotton <span dir="ltr"><<a moz-do-not-send="true"
href="mailto:gkotton@redhat.com" target="_blank">gkotton@redhat.com</a>></span>
wrote:<br>
<blockquote class="gmail_quote" style="margin:0 0 0
.8ex;border-left:1px #ccc solid;padding-left:1ex">
<div bgcolor="#FFFFFF" text="#000000">
<div>
<div class="h5"> On 05/15/2013 10:53 PM, Aaron Rosen
wrote:
<blockquote type="cite">
<div dir="ltr">
<div>Hi, <br>
<br>
</div>
I created the following blueprint and wanted to
hear what the community though before starting
on it. <br>
<div>
<div><br>
<a moz-do-not-send="true"
href="https://blueprints.launchpad.net/nova/+spec/nova-api-quantum-create-port"
target="_blank">https://blueprints.launchpad.net/nova/+spec/nova-api-quantum-create-port</a><br>
</div>
</div>
</div>
</blockquote>
<br>
</div>
</div>
In the BP you wrote: "The only downside I see of moving
this logic into nova-api is that we would slow down the
response time from nova-api to provision instances."<br>
<br>
This can be addressed by nova prefetching quantum ports.
When nova needs a port is can be retrieved from a cached
pool. This may be a way of addressing this at a later
stage if the nova api is indeed a bottleneck when it
comes to the quantum interface (please note that this
currently happens on the compute node at the moment)<br>
<br>
</div>
</blockquote>
<div><br>
</div>
<div>If there are ports that are preallocated and cached in
a pool of available ports on the nova-api node this won't
work if running multiple nova-api nodes with a load
balancer in front. <br>
</div>
</div>
</div>
</div>
</blockquote>
<br>
Why? It is just an implementation detail. This information can be
maintained in the nova database.<br>
<br>
<blockquote
cite="mid:CANAD0X-g+02f-pp3J72PgWrXwuJzPTjR5b61eVdq6z5kC=7quQ@mail.gmail.com"
type="cite">
<div dir="ltr">
<div class="gmail_extra">
<div class="gmail_quote">
<div>
</div>
<div> </div>
<blockquote class="gmail_quote" style="margin:0 0 0
.8ex;border-left:1px #ccc solid;padding-left:1ex">
<div bgcolor="#FFFFFF" text="#000000"> Thanks<br>
Gary<br>
<br>
<blockquote type="cite">
<div dir="ltr">
<div>
<div> <br>
</div>
<div>Thanks, <br>
<br>
Aaron<br>
</div>
</div>
</div>
<br>
<fieldset></fieldset>
<br>
<pre>_______________________________________________
OpenStack-dev mailing list
<a moz-do-not-send="true" href="mailto:OpenStack-dev@lists.openstack.org" target="_blank">OpenStack-dev@lists.openstack.org</a>
<a moz-do-not-send="true" href="http://lists.openstack.org/cgi-bin/mailman/listinfo/openstack-dev" target="_blank">http://lists.openstack.org/cgi-bin/mailman/listinfo/openstack-dev</a>
</pre>
</blockquote>
<br>
</div>
<br>
_______________________________________________<br>
OpenStack-dev mailing list<br>
<a moz-do-not-send="true"
href="mailto:OpenStack-dev@lists.openstack.org">OpenStack-dev@lists.openstack.org</a><br>
<a moz-do-not-send="true"
href="http://lists.openstack.org/cgi-bin/mailman/listinfo/openstack-dev"
target="_blank">http://lists.openstack.org/cgi-bin/mailman/listinfo/openstack-dev</a><br>
<br>
</blockquote>
</div>
<br>
</div>
</div>
</blockquote>
<br>
</body>
</html>