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<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri",sans-serif;color:#1F497D">Thanks Sean D. for explanation!<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">I’ve taken a look into old Russell patches, and it seems that the project-config was already modified by him:<o:p></o:p></span></p>
<p style="margin:0in;margin-bottom:.0001pt"><span style="font-size:11.0pt;font-family:"Calibri",sans-serif;color:black">Add check-grenade-dsvm-partial-ncpu-neutron: (project-config)<o:p></o:p></span></p>
<p style="margin:0in;margin-bottom:.0001pt"><span lang="PL" style="font-size:11.0pt;font-family:"Calibri",sans-serif;color:black"><a href="https://review.openstack.org/#/c/189426"><span lang="EN-US">https://review.openstack.org/#/c/189426</span></a><o:p></o:p></span></p>
<p style="margin:0in;margin-bottom:.0001pt"><span style="font-size:11.0pt;font-family:"Calibri",sans-serif;color:black">Add check-grenade-dsvm-partial-ncpu-neutron-dvr (project-config)<o:p></o:p></span></p>
<p style="margin:0in;margin-bottom:.0001pt"><span lang="PL" style="font-size:11.0pt;font-family:"Calibri",sans-serif;color:black"><a href="https://review.openstack.org/#/c/189727"><span lang="EN-US">https://review.openstack.org/#/c/189727</span></a></span><span style="font-size:11.0pt;font-family:"Calibri",sans-serif;color:black"><o:p></o:p></span></p>
<p style="margin:0in;margin-bottom:.0001pt"><span style="font-size:11.0pt;font-family:"Calibri",sans-serif;color:black"><o:p> </o:p></span></p>
<p style="margin:0in;margin-bottom:.0001pt"><span style="font-size:11.0pt;font-family:"Calibri",sans-serif;color:black">Another 2 patches are introducing the Neutron partial job to devstack-gate<o:p></o:p></span></p>
<p style="margin:0in;margin-bottom:.0001pt"><span style="font-size:11.0pt;font-family:"Calibri",sans-serif;color:black">Add partial-ncpu-neutron grenade mode (devstack-gate)<o:p></o:p></span></p>
<p style="margin:0in;margin-bottom:.0001pt"><span lang="PL" style="font-size:11.0pt;font-family:"Calibri",sans-serif;color:black"><a href="https://review.openstack.org/#/c/189424/"><span lang="EN-US">https://review.openstack.org/#/c/189424/</span></a></span><span style="font-size:11.0pt;font-family:"Calibri",sans-serif;color:black"><o:p></o:p></span></p>
<p style="margin:0in;margin-bottom:.0001pt"><span style="font-size:11.0pt;font-family:"Calibri",sans-serif;color:black">Add partial-ncpu-neutron-dvr grenade mode (devstack-gate)<o:p></o:p></span></p>
<p style="margin:0in;margin-bottom:.0001pt"><span lang="PL" style="font-size:11.0pt;font-family:"Calibri",sans-serif;color:black"><a href="https://review.openstack.org/#/c/189715"><span lang="EN-US">https://review.openstack.org/#/c/189715</span></a></span><span style="font-size:11.0pt;font-family:"Calibri",sans-serif;color:black"><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">I haven’t tested that yet, but it looks like it does the job.<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">Also, there is still one patch in Devstack needed for L3 agent separate start/stop:<o:p></o:p></span></p>
<p style="margin:0in;margin-bottom:.0001pt"><span style="font-size:11.0pt;font-family:"Calibri",sans-serif;color:black">Separate start/stop control of the Neutron L3 agent. (Devstack)<o:p></o:p></span></p>
<p style="margin:0in;margin-bottom:.0001pt"><span lang="PL" style="font-size:11.0pt;font-family:"Calibri",sans-serif;color:black"><a href="https://review.openstack.org/#/c/189710/"><span lang="EN-US">https://review.openstack.org/#/c/189710/</span></a></span><span style="font-size:11.0pt;font-family:"Calibri",sans-serif;color:black"><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">From what Sean D. talked about, following patches should not be resurrected:<o:p></o:p></span></p>
<p style="margin:0in;margin-bottom:.0001pt"><span style="font-size:11.0pt;font-family:"Calibri",sans-serif;color:black">Support partial upgrades of Neutron in DVR mode: (Grenade)<o:p></o:p></span></p>
<p style="margin:0in;margin-bottom:.0001pt"><span lang="PL" style="font-size:11.0pt;font-family:"Calibri",sans-serif;color:black"><a href="https://review.openstack.org/#/c/189712"><span lang="EN-US">https://review.openstack.org/#/c/189712</span></a></span><span lang="PL" style="font-size:11.0pt;font-family:"Calibri",sans-serif;color:black">
</span><span style="font-size:11.0pt;font-family:"Calibri",sans-serif;color:black"><o:p></o:p></span></p>
<p style="margin:0in;margin-bottom:.0001pt"><span style="font-size:11.0pt;font-family:"Calibri",sans-serif;color:black"> Support partial Neutron upgrades. (Grenade)<o:p></o:p></span></p>
<p style="margin:0in;margin-bottom:.0001pt"><span lang="PL" style="font-size:11.0pt;font-family:"Calibri",sans-serif;color:black"><a href="https://review.openstack.org/#/c/189417/"><span lang="EN-US">https://review.openstack.org/#/c/189417/</span></a></span><span style="font-size:11.0pt;font-family:"Calibri",sans-serif;color:black"><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 order to test the RPC right, we should be able to decouple the neutron server from its agents – L2, L3, DHCP and metadata agents.<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri",sans-serif;color:#1F497D">Current scenario will let us to test :<o:p></o:p></span></p>
<p class="MsoListParagraph" style="text-indent:-.25in;mso-list:l4 level1 lfo1"><![if !supportLists]><span style="font-size:11.0pt;font-family:"Calibri",sans-serif;color:#1F497D"><span style="mso-list:Ignore">1.<span style="font:7.0pt "Times New Roman"">
</span></span></span><![endif]><span style="font-size:11.0pt;font-family:"Calibri",sans-serif;color:#1F497D">Legacy:<o:p></o:p></span></p>
<p class="MsoListParagraph" style="margin-left:1.0in;text-indent:-.25in;mso-list:l4 level2 lfo1">
<![if !supportLists]><span style="font-size:11.0pt;font-family:"Calibri",sans-serif;color:#1F497D"><span style="mso-list:Ignore">a.<span style="font:7.0pt "Times New Roman"">
</span></span></span><![endif]><span style="font-size:11.0pt;font-family:"Calibri",sans-serif;color:#1F497D">Controller & network node: neutron server, L2, L3, Metadata and DHCP agents<o:p></o:p></span></p>
<p class="MsoListParagraph" style="margin-left:1.0in;text-indent:-.25in;mso-list:l4 level2 lfo1">
<![if !supportLists]><span style="font-size:11.0pt;font-family:"Calibri",sans-serif;color:#1F497D"><span style="mso-list:Ignore">b.<span style="font:7.0pt "Times New Roman"">
</span></span></span><![endif]><span style="font-size:11.0pt;font-family:"Calibri",sans-serif;color:#1F497D">Compute node: L2 agent.<o:p></o:p></span></p>
<p class="MsoListParagraph" style="text-indent:-.25in;mso-list:l4 level1 lfo1"><![if !supportLists]><span style="font-size:11.0pt;font-family:"Calibri",sans-serif;color:#1F497D"><span style="mso-list:Ignore">2.<span style="font:7.0pt "Times New Roman"">
</span></span></span><![endif]><span style="font-size:11.0pt;font-family:"Calibri",sans-serif;color:#1F497D">DVR:<o:p></o:p></span></p>
<p class="MsoListParagraph" style="margin-left:1.0in;text-indent:-.25in;mso-list:l4 level2 lfo1">
<![if !supportLists]><span style="font-size:11.0pt;font-family:"Calibri",sans-serif;color:#1F497D"><span style="mso-list:Ignore">a.<span style="font:7.0pt "Times New Roman"">
</span></span></span><![endif]><span style="font-size:11.0pt;font-family:"Calibri",sans-serif;color:#1F497D">Controller & network node: neutron server, L2, L3, Metadata and DHCP agents<o:p></o:p></span></p>
<p class="MsoListParagraph" style="margin-left:1.0in;text-indent:-.25in;mso-list:l4 level2 lfo1">
<![if !supportLists]><span style="font-size:11.0pt;font-family:"Calibri",sans-serif;color:#1F497D"><span style="mso-list:Ignore">b.<span style="font:7.0pt "Times New Roman"">
</span></span></span><![endif]><span style="font-size:11.0pt;font-family:"Calibri",sans-serif;color:#1F497D">Compute node: L2, L3, Metadata(?) agents<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">We can start with current scenario, but this does not guarantee us to test of DHCP RPC.<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">The ideal upgrade scenario should look like this:<o:p></o:p></span></p>
<p class="MsoListParagraph" style="text-indent:-.25in;mso-list:l1 level1 lfo2"><![if !supportLists]><span style="font-size:11.0pt;font-family:"Calibri",sans-serif;color:#1F497D"><span style="mso-list:Ignore">1.<span style="font:7.0pt "Times New Roman"">
</span></span></span><![endif]><span style="font-size:11.0pt;font-family:"Calibri",sans-serif;color:#1F497D">Legacy:<o:p></o:p></span></p>
<p class="MsoListParagraph" style="margin-left:1.0in;text-indent:-.25in;mso-list:l1 level2 lfo2">
<![if !supportLists]><span style="font-size:11.0pt;font-family:"Calibri",sans-serif;color:#1F497D"><span style="mso-list:Ignore">a.<span style="font:7.0pt "Times New Roman"">
</span></span></span><![endif]><span style="font-size:11.0pt;font-family:"Calibri",sans-serif;color:#1F497D">Controller node: neutron server<o:p></o:p></span></p>
<p class="MsoListParagraph" style="margin-left:1.0in;text-indent:-.25in;mso-list:l1 level2 lfo2">
<![if !supportLists]><span style="font-size:11.0pt;font-family:"Calibri",sans-serif;color:#1F497D"><span style="mso-list:Ignore">b.<span style="font:7.0pt "Times New Roman"">
</span></span></span><![endif]><span style="font-size:11.0pt;font-family:"Calibri",sans-serif;color:#1F497D">Network node: L2, L3, Metadata and DHCP server<o:p></o:p></span></p>
<p class="MsoListParagraph" style="margin-left:1.0in;text-indent:-.25in;mso-list:l1 level2 lfo2">
<![if !supportLists]><span style="font-size:11.0pt;font-family:"Calibri",sans-serif;color:#1F497D"><span style="mso-list:Ignore">c.<span style="font:7.0pt "Times New Roman"">
</span></span></span><![endif]><span style="font-size:11.0pt;font-family:"Calibri",sans-serif;color:#1F497D">Compute node: L2 agent<o:p></o:p></span></p>
<p class="MsoListParagraph" style="text-indent:-.25in;mso-list:l1 level1 lfo2"><![if !supportLists]><span style="font-size:11.0pt;font-family:"Calibri",sans-serif;color:#1F497D"><span style="mso-list:Ignore">2.<span style="font:7.0pt "Times New Roman"">
</span></span></span><![endif]><span style="font-size:11.0pt;font-family:"Calibri",sans-serif;color:#1F497D">DVR:<o:p></o:p></span></p>
<p class="MsoListParagraph" style="margin-left:1.0in;text-indent:-.25in;mso-list:l1 level2 lfo2">
<![if !supportLists]><span style="font-size:11.0pt;font-family:"Calibri",sans-serif;color:#1F497D"><span style="mso-list:Ignore">a.<span style="font:7.0pt "Times New Roman"">
</span></span></span><![endif]><span style="font-size:11.0pt;font-family:"Calibri",sans-serif;color:#1F497D">Controller node: neutron server<o:p></o:p></span></p>
<p class="MsoListParagraph" style="margin-left:1.0in;text-indent:-.25in;mso-list:l1 level2 lfo2">
<![if !supportLists]><span style="font-size:11.0pt;font-family:"Calibri",sans-serif;color:#1F497D"><span style="mso-list:Ignore">b.<span style="font:7.0pt "Times New Roman"">
</span></span></span><![endif]><span style="font-size:11.0pt;font-family:"Calibri",sans-serif;color:#1F497D">Network node: L2, L3, Metadata and DHCP server<o:p></o:p></span></p>
<p class="MsoListParagraph" style="margin-left:1.0in;text-indent:-.25in;mso-list:l1 level2 lfo2">
<![if !supportLists]><span style="font-size:11.0pt;font-family:"Calibri",sans-serif;color:#1F497D"><span style="mso-list:Ignore">c.<span style="font:7.0pt "Times New Roman"">
</span></span></span><![endif]><span style="font-size:11.0pt;font-family:"Calibri",sans-serif;color:#1F497D">Compute node: L2, L3 and Metadata agent<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">The job still to be done in order to fully test partial upgrades:<o:p></o:p></span></p>
<p class="MsoListParagraph" style="text-indent:-.25in;mso-list:l2 level1 lfo5"><![if !supportLists]><span style="font-size:11.0pt;font-family:"Calibri",sans-serif;color:#1F497D"><span style="mso-list:Ignore">-<span style="font:7.0pt "Times New Roman"">
</span></span></span><![endif]><span style="font-size:11.0pt;font-family:"Calibri",sans-serif;color:#1F497D">Decouple the DHCP and metadata agent from devstack neutron restart<o:p></o:p></span></p>
<p class="MsoListParagraph" style="text-indent:-.25in;mso-list:l2 level1 lfo5"><![if !supportLists]><span style="font-size:11.0pt;font-family:"Calibri",sans-serif;color:#1F497D"><span style="mso-list:Ignore">-<span style="font:7.0pt "Times New Roman"">
</span></span></span><![endif]><span style="font-size:11.0pt;font-family:"Calibri",sans-serif;color:#1F497D">Look through the grenade Neutron code in order to identify if we are creating the all the resources critical to test the upgrades<o:p></o:p></span></p>
<p class="MsoListParagraph" style="text-indent:-.25in;mso-list:l2 level1 lfo5"><![if !supportLists]><span style="font-size:11.0pt;font-family:"Calibri",sans-serif;color:#1F497D"><span style="mso-list:Ignore">-<span style="font:7.0pt "Times New Roman"">
</span></span></span><![endif]><span style="font-size:11.0pt;font-family:"Calibri",sans-serif;color:#1F497D">Debug, debug, debug…<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">Regards,<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri",sans-serif;color:#1F497D">Artur<o:p></o:p></span></p>
<p class="MsoNormal"><b><span style="font-size:11.0pt;font-family:"Calibri",sans-serif">From:</span></b><span style="font-size:11.0pt;font-family:"Calibri",sans-serif"> Armando M. [mailto:armamig@gmail.com]
<br>
<b>Sent:</b> Friday, November 13, 2015 9:37 PM<br>
<b>To:</b> OpenStack Development Mailing List (not for usage questions)<br>
<b>Subject:</b> Re: [openstack-dev] [nova][neutron][upgrade] Grenade multinode partial upgrade<o:p></o:p></span></p>
<p class="MsoNormal"><o:p> </o:p></p>
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<p class="MsoNormal"><o:p> </o:p></p>
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<p class="MsoNormal"><o:p> </o:p></p>
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<p class="MsoNormal">On 13 November 2015 at 11:46, Sean Dague <<a href="mailto:sean@dague.net" target="_blank">sean@dague.net</a>> wrote:<o:p></o:p></p>
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<p class="MsoNormal">On 11/13/2015 01:16 PM, Sean M. Collins wrote:<br>
> On Fri, Nov 13, 2015 at 07:42:12AM EST, Sean Dague wrote:<br>
>> Ok, I top responded with the details of the job, honestly I think it's<br>
>> just a project-config change to get up and running, and then hacking at<br>
>> the bugs that fall out.<br>
><br>
> Thanks - that was super helpful.<br>
><br>
> I'm thinking of working on the following on Monday:<br>
><br>
> 1) capture that somewhere in the upgrade docs we're putting together in neutron's devref<br>
><br>
> 2) Adding the stanza to project-config to get grenade running for<br>
> Neutron<br>
><br>
> 3) Take a look at the patches that Armando linked a couple emails back<br>
> in this thread.<br>
<br>
I don't think that any of the patches listed there are needed. This was<br>
part of the reason I -2ed that direction in the last cycle. It required<br>
a separate special code path for partial upgrade setup which was very<br>
synthetic (and honestly kind of confusing to debug).<o:p></o:p></p>
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<p class="MsoNormal"><o:p> </o:p></p>
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<p class="MsoNormal">I don't disagree. I didn't meant to imply 'resume the patches', I was only providing the backdrop.<o:p></o:p></p>
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<p class="MsoNormal"> <o:p></o:p></p>
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<p class="MsoNormal" style="margin-bottom:12.0pt"><br>
The new approach means if you did upgrade for the all-in-one case, and<br>
you did multinode setup with worker processes on the subnode, you just<br>
make a config where you do them both at the same time, and you have<br>
partial upgrade.<br>
<br>
<span class="im"> -Sean</span><br>
<br>
<span class="im">--</span><br>
<span class="im">Sean Dague</span><br>
<span class="im"><a href="http://dague.net" target="_blank">http://dague.net</a></span><o:p></o:p></p>
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