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<p class="MsoNormal" style="text-indent:6.0pt"><span lang="EN-US">Agree with this approach. The large-scale test scenario configuration manual is very meaningful.<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US"><o:p> </o:p></span></p>
<p class="MsoNormal" style="text-indent:6.0pt"><span lang="EN-US">When the OpenStack deployment scale reaches a certain level (for example, nodes >= 200,500… etc.),<o:p></o:p></span></p>
<p class="MsoNormal" style="text-indent:6.0pt"><span lang="EN-US">various exception scenarios will occur, rabitmq blocking conditions, and create a batch of servers.<o:p></o:p></span></p>
<p class="MsoNormal" style="text-indent:6.0pt"><span lang="EN-US">It’s success rate (There will be some configurations to be care. e.g. scheduling policies, rpc wait time, amount of works etc.).<o:p></o:p></span></p>
<p class="MsoNormal" style="text-indent:6.0pt"><span lang="EN-US">If there is a reference manual, this is very friendly.<o:p></o:p></span></p>
<p class="MsoNormal" style="text-indent:5.25pt"><span lang="EN-US" style="font-size:10.5pt;font-family:"Calibri",sans-serif;color:#1F497D"><o:p> </o:p></span></p>
<p class="MsoNormal"><b><span lang="EN-US" style="font-size:11.0pt;font-family:"微软雅黑",sans-serif"><o:p> </o:p></span></b></p>
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<p class="MsoNormal"><span lang="EN-US" style="color:#1F497D">> </span><span lang="EN-US">On Sat, 3 Aug. 2019, 6:25 am Matt Riedemann, <<a href="mailto:mriedemos@gmail.com">mriedemos@gmail.com</a>> wrote:<o:p></o:p></span></p>
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<p class="MsoNormal" style="margin-bottom:12.0pt"><span lang="EN-US" style="color:#1F497D">>
</span><span lang="EN-US">I wanted to send this to get other people's feedback if they have
<br>
<span style="color:#1F497D">> </span>particular nova configurations once they hit a certain scale (hundreds
<br>
<span style="color:#1F497D">> </span>or thousands of nodes). Every once in awhile in IRC I'll be chatting
<br>
<span style="color:#1F497D">> </span>with someone about configuration changes they've made running at large
<br>
<span style="color:#1F497D">> </span>scale to avoid, for example, hammering the control plane. I don't know
<br>
<span style="color:#1F497D">> </span>how many times I've thought, "it would be nice if we had a doc
<br>
<span style="color:#1F497D">> </span>highlighting some of these things so a new operator could come along and
<br>
<span style="color:#1F497D">> </span>see, oh I've never tried changing that value before".<br>
<span style="color:#1F497D">></span><br>
<span style="color:#1F497D">> </span>I haven't started that doc, but I've started a bug report for people to
<br>
<span style="color:#1F497D">> </span>dump some of their settings. The most common ones could go into a simple
<br>
<span style="color:#1F497D">> </span>admin doc to start.<br>
<span style="color:#1F497D">></span><br>
<span style="color:#1F497D">> </span>I know there is more I've thought about in the past that I don't have in
<br>
<span style="color:#1F497D">> </span>here but this is just a starting point so I don't make the mistake of
<br>
<span style="color:#1F497D">> </span>not taking action on this again.<br>
<span style="color:#1F497D">></span><br>
<span style="color:#1F497D">> </span><a href="https://bugs.launchpad.net/nova/+bug/1838819" target="_blank">https://bugs.launchpad.net/nova/+bug/1838819</a><br>
<span style="color:#1F497D">></span><br>
<span style="color:#1F497D">> </span>-- <br>
<span style="color:#1F497D"> > </span><br>
<span style="color:#1F497D"> > </span>Thanks,<br>
<span style="color:#1F497D">> </span><br>
<span style="color:#1F497D"> > </span>Matt<span style="color:#1F497D"><o:p></o:p></span></span></p>
<p class="MsoNormal"><span lang="EN-US">Hi Matt,<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US"><o:p> </o:p></span></p>
<p class="MsoNormal"><span lang="EN-US">My name is Joe - docs person from years back - this looks like a good initiative and I would be up for documenting these settings at scale.<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US"><o:p> </o:p></span></p>
<p class="MsoNormal"><span lang="EN-US">Next step I can see is gathering more Info about this pain point (already started :)) and then I can draft something together for feedback.<o:p></o:p></span></p>
<p class="MsoNormal" style="margin-bottom:12.0pt"><span lang="EN-US" style="font-size:10.5pt;font-family:"Calibri",sans-serif;color:#1F497D"><o:p> </o:p></span></p>
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