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<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D">RPC will send the notifications to the queues that have joined the exchanges.<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D"><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D">Any notifications that were published before your service registers are not seen by your service.<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D"><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D">Your service needs to get hold of the data using Nova and Neutron API.<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D"><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D">In summary, when your service comes up, in addition to registering for notifications, it is needed to get the existing data using Nova/Neutrion API. <o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D"><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D">Thanks<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D">SRini<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D"><o:p> </o:p></span></p>
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<p class="MsoNormal"><b><span style="font-size:10.0pt;font-family:"Tahoma","sans-serif"">From:</span></b><span style="font-size:10.0pt;font-family:"Tahoma","sans-serif""> Ravi Chunduru [mailto:ravivsn@gmail.com]
<br>
<b>Sent:</b> Wednesday, July 31, 2013 10:57 AM<br>
<b>To:</b> OpenStack Development Mailing List<br>
<b>Subject:</b> Re: [openstack-dev] Openstack Service requirement<o:p></o:p></span></p>
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<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal">Hi,<o:p></o:p></p>
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<p class="MsoNormal"> Could any one respond on this? This helps us in designing services written on top of openstack.<o:p></o:p></p>
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<p class="MsoNormal"><o:p> </o:p></p>
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<p class="MsoNormal">Thanks,<o:p></o:p></p>
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<p class="MsoNormal" style="margin-bottom:12.0pt">-Ravi.<o:p></o:p></p>
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<p class="MsoNormal">On Tue, Jul 30, 2013 at 7:38 PM, Ravi Chunduru <<a href="mailto:ravivsn@gmail.com" target="_blank">ravivsn@gmail.com</a>> wrote:<o:p></o:p></p>
<p class="MsoNormal">Hi,<o:p></o:p></p>
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<p class="MsoNormal"> I was designing a Openstack service that listens on notifications generated from Nova, Neutron etc., for our custom needs to monitor and act up on events.<o:p></o:p></p>
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<p class="MsoNormal">I have an interesting observation from openstack perspective and I would like to know community thinking about it.<o:p></o:p></p>
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<p class="MsoNormal"><o:p> </o:p></p>
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<p class="MsoNormal">By the time an openstack service starts, it would have missed some notifications. How do we deal with it?<o:p></o:p></p>
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<p class="MsoNormal"><o:p> </o:p></p>
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<p class="MsoNormal">For example, Designate(DNSaaS) starts and by that time some VMs got created, it would loose to update the DNS servers for those VMs.<o:p></o:p></p>
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<p class="MsoNormal">Should any openstack service such as Designate call openstack APIs and get existing configuration?<o:p></o:p></p>
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<p class="MsoNormal"><o:p> </o:p></p>
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<p class="MsoNormal">Thanks,<o:p></o:p></p>
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<p class="MsoNormal"><span class="hoenzb"><span style="color:#888888">-- </span></span><span style="color:#888888"><br>
<span class="hoenzb">Ravi</span></span><o:p></o:p></p>
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<o:p></o:p></p>
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<p class="MsoNormal"><o:p> </o:p></p>
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<p class="MsoNormal">-- <br>
Ravi<o:p></o:p></p>
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