Hi Doug,<div><br></div><div>Thanks for sending this out. Pinging the ceilometer team about Quantum support has been on my todo list for a while now. </div><div><br></div><div>Troy (CC'd) did some thinking about notifications for quantum, but we haven't implemented this yet. Here's the existing blueprint: <a href="https://blueprints.launchpad.net/quantum/+spec/quantum-notifications">https://blueprints.launchpad.net/quantum/+spec/quantum-notifications</a> . My assumption is that we would model what Nova is doing for notifications, but to be honest, I'm not really familiar with that code. Anyone interested in taking this blueprint on? </div>
<div><br></div><div>We do have an extension to support port-statistics to indicate the amount of traffic sent to/from a VM that could be used by ceilometer, though that would likely be more of a poll model, at least with the current implementation.</div>
<div><br></div><div>Dan<br><br><div class="gmail_quote">On Wed, Jun 27, 2012 at 3:16 PM, Doug Hellmann <span dir="ltr"><<a href="mailto:doug.hellmann@dreamhost.com" target="_blank">doug.hellmann@dreamhost.com</a>></span> wrote:<br>
<blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex"><span style="color:rgb(34,34,34);font-size:13px;font-family:arial,sans-serif">Hello,</span><br style="color:rgb(34,34,34);font-size:13px;font-family:arial,sans-serif">
<br style="color:rgb(34,34,34);font-size:13px;font-family:arial,sans-serif"><span style="color:rgb(34,34,34);font-size:13px;font-family:arial,sans-serif">As part of the ceilometer project¹, we're working on retrieving usage </span><div>
<span style="color:rgb(34,34,34);font-size:13px;font-family:arial,sans-serif">data </span><span style="color:rgb(34,34,34);font-size:13px;font-family:arial,sans-serif">from various OpenStack components</span>. We would like to integrate </div>
<div>with Quantum for information about network resource utilization that a </div><div>deployer might want to bill their tenants for.</div><div><div><br style><div><span style="color:rgb(34,34,34);font-size:13px;font-family:arial,sans-serif">Ceilometer has a plugin-based architecture, which </span><span style="color:rgb(34,34,34);font-size:13px;font-family:arial,sans-serif">makes it easy to add </span></div>
<div><span style="color:rgb(34,34,34);font-size:13px;font-family:arial,sans-serif">new measurement types and data </span><span style="color:rgb(34,34,34);font-size:13px;font-family:arial,sans-serif">collectors. </span><span style="color:rgb(34,34,34);font-size:13px;font-family:arial,sans-serif">Our approach with other </span></div>
<div><span style="color:rgb(34,34,34);font-size:13px;font-family:arial,sans-serif">measurements is to collect everything </span><span style="color:rgb(34,34,34);font-size:13px;font-family:arial,sans-serif">and let the ceilometer user decide </span></div>
<div><span style="color:rgb(34,34,34);font-size:13px;font-family:arial,sans-serif">what to bill for and what to </span><span style="color:rgb(34,34,34);font-size:13px;font-family:arial,sans-serif">ignore (they can turn off measurements for </span></div>
<div><span style="color:rgb(34,34,34);font-size:13px;font-family:arial,sans-serif">things they do not </span><span style="color:rgb(34,34,34);font-size:13px;font-family:arial,sans-serif">care about). </span></div>
</div><div><span style="color:rgb(34,34,34);font-size:13px;font-family:arial,sans-serif"><br></span></div><div><span style="color:rgb(34,34,34);font-size:13px;font-family:arial,sans-serif">Depending on the project and the type of data, we can either</span></div>
<div><span style="color:rgb(34,34,34);font-size:13px;font-family:arial,sans-serif">use the notification events generated by allocating/deallocating</span></div><div><span style="color:rgb(34,34,34);font-size:13px;font-family:arial,sans-serif">a resource, or we can poll for metrics being collected elsewhere.</span></div>
<div><span style="color:rgb(34,34,34);font-size:13px;font-family:arial,sans-serif">We will probably want to use both approaches for integrating</span></div><div><span style="color:rgb(34,34,34);font-size:13px;font-family:arial,sans-serif">with Quantum (e.g., use events for things like IP allocation and</span></div>
<div><span style="color:rgb(34,34,34);font-size:13px;font-family:arial,sans-serif">polling for I/O).</span></div><div><br style="color:rgb(34,34,34);font-size:13px;font-family:arial,sans-serif">
<span style="color:rgb(34,34,34);font-size:13px;font-family:arial,sans-serif">Do you have any advice on how to integrate Ceilometer and Quantum</span><span style="color:rgb(34,34,34);font-size:13px;font-family:arial,sans-serif">? </span></div>
<div><span style="color:rgb(34,34,34);font-size:13px;font-family:arial,sans-serif">For example, does Quantum emit notifications and does it collect</span></div><div>(or provide an API to query) I/O statistics?<br style="color:rgb(34,34,34);font-size:13px;font-family:arial,sans-serif">
<br>Thanks,</div><div>Doug</div><div><br style><br style="color:rgb(34,34,34);font-size:13px;font-family:arial,sans-serif"><span style="color:rgb(34,34,34);font-size:13px;font-family:arial,sans-serif">¹ </span><a href="http://launchpad.net/ceilometer" style="color:rgb(17,85,204);font-size:13px;font-family:arial,sans-serif" target="_blank">http://launchpad.net/ceilometer</a></div>
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<br></blockquote></div><br><br clear="all"><div><br></div>-- <br>~~~~~~~~~~~~~~~~~~~~~~~~~~~<br>Dan Wendlandt <div>Nicira, Inc: <a href="http://www.nicira.com" target="_blank">www.nicira.com</a><br><div>twitter: danwendlandt<br>
~~~~~~~~~~~~~~~~~~~~~~~~~~~<br></div></div><br>
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