Hello all,<div><br></div><div>I am part of the SF south bay meetup group and trying to add a Disk I/O QoS feature which is based on the blkiotune in libvirt. </div><div>We would like to add flavor types in which we specify the blkiotune in the create flavor screen. After reviewing the discussions and some emails it appears that it makes sense to use the "instance_type_extra_specs" to add the blkiotune as a key/value pair instead of extending the "instance_type" table in nova db. </div>
<div><br></div><div>I am able to use nova-manage to create instance type and use "set_key" to add extra specs. The set_key seems to make a direct call to the db to insert the keys whereas the instance_type create takes the more traditional path through the flavomanage controller. However I notice that there is no documentation on how to add the extra_specs keys using a RESTful api. Is this something still in discussions? </div>
<div><br></div><div>Thanks</div><div>Vinay</div><div><br><div class="gmail_quote">On Tue, Aug 28, 2012 at 8:02 AM, Patrick Petit <span dir="ltr"><<a href="mailto:patrick.michel.petit@gmail.com" target="_blank">patrick.michel.petit@gmail.com</a>></span> wrote:<br>
<blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex">Hi Don,<div><br></div><div>I added a comment in <a href="https://bugs.launchpad.net/nova/+bug/1039386" target="_blank">https://bugs.launchpad.net/nova/+bug/1039386</a> regarding your point.</div>
<div>Best regards,</div><div>Patrick<br><br>
<div class="gmail_quote">2012/8/24 Dugger, Donald D <span dir="ltr"><<a href="mailto:donald.d.dugger@intel.com" target="_blank">donald.d.dugger@intel.com</a>></span><div><div class="h5"><br><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex">
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<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1f497d">Patrick-<u></u><u></u></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1f497d"><u></u> <u></u></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1f497d">We’ve enhanced `nova-manage’ to manipulate the `extra_specs’ entries, c.f.
<a href="https://blueprints.launchpad.net/nova/+spec/update-flavor-key-value" target="_blank">https://blueprints.launchpad.net/nova/+spec/update-flavor-key-value</a>, You can add an `extra_specs’ key/value pair to a flavor with the command:<u></u><u></u></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1f497d"><u></u> <u></u></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1f497d"> nova-manage instance_type add_key m1.humongous cpu_type itanium<u></u><u></u></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1f497d"><u></u> <u></u></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1f497d">And delete a key/value pair with the command:<u></u><u></u></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1f497d"><u></u> <u></u></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1f497d"> nova-manage instance_type del_key m1.humongous cpu_type<u></u><u></u></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1f497d"><u></u> <u></u></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1f497d">We’re in the process of enhancing `python-novaclient’ and Horizon with similar capabilities and hope to have them ready for the Folsom release.<u></u><u></u></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1f497d"><u></u> <u></u></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1f497d">Currently, there’s no hook to set `extra_specs’ through the `nova.conf’ file, the mechanism is to dynamically add the `extra_specs’ key/values after the administrator
has created a flavor.<u></u><u></u></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1f497d"><u></u> <u></u></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1f497d">Currently, the keys are completely free form but there are some issues with that so that should change. Checkout the bug:<u></u><u></u></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1f497d"><u></u> <u></u></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1f497d">
<a href="https://bugs.launchpad.net/nova/+bug/1039386" target="_blank">https://bugs.launchpad.net/nova/+bug/1039386</a><u></u><u></u></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1f497d"><u></u> <u></u></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1f497d">Based upon that bug we need to put some sort of scope on the keys to indicate which components a key applies to. I’m in favor of adding a new column to the
`extra_specs’ table that would explicitly set the scope but an alternative would be to encode the scope into the key itself, something like `TrustedFilter:trust’ to indicate that the `trust’ key only applies to the `TrustedFilter’ scheduler component. Feel
free to chime in on the BZ entry on how to specify the scope, once we decide on how to deal with this I’ll create a patch to handle it.<u></u><u></u></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1f497d"><u></u> <u></u></span></p>
<p class="MsoNormal"><span style="font-size:10.5pt;font-family:Consolas;color:#1f497d">--<u></u><u></u></span></p>
<p class="MsoNormal"><span style="font-size:10.5pt;font-family:Consolas;color:#1f497d">Don Dugger<u></u><u></u></span></p>
<p class="MsoNormal"><span style="font-size:10.5pt;font-family:Consolas;color:#1f497d">"Censeo Toto nos in Kansa esse decisse." - D. Gale<u></u><u></u></span></p>
<p class="MsoNormal"><span style="font-size:10.5pt;font-family:Consolas;color:#1f497d">Ph: <a href="tel:303%2F443-3786" value="+13034433786" target="_blank">303/443-3786</a><u></u><u></u></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1f497d"><u></u> <u></u></span></p>
<div style="border:none;border-top:solid #b5c4df 1.0pt;padding:3.0pt 0in 0in 0in">
<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""> openstack-bounces+donald.d.dugger=<a href="mailto:intel.com@lists.launchpad.net" target="_blank">intel.com@lists.launchpad.net</a> [mailto:<a href="mailto:openstack-bounces%2Bdonald.d.dugger" target="_blank">openstack-bounces+donald.d.dugger</a>=<a href="mailto:intel.com@lists.launchpad.net" target="_blank">intel.com@lists.launchpad.net</a>]
<b>On Behalf Of </b>Patrick Petit<br>
<b>Sent:</b> Friday, August 24, 2012 7:13 AM<br>
<b>To:</b> <a href="mailto:openstack@lists.launchpad.net" target="_blank">openstack@lists.launchpad.net</a> (<a href="mailto:openstack@lists.launchpad.net" target="_blank">openstack@lists.launchpad.net</a>)<br>
<b>Subject:</b> [Openstack] [Nova] Instance Type Extra Specs clarifications<u></u><u></u></span></p>
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<p class="MsoNormal"><u></u> <u></u></p>
<p class="MsoNormal">Hi,<u></u><u></u></p>
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<p class="MsoNormal"><u></u> <u></u></p>
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<p class="MsoNormal">Could someone give a practical overview of how configuring and using the instance type extra specs extension capability introduced in Folsom?<u></u><u></u></p>
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<p class="MsoNormal"><u></u> <u></u></p>
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<p class="MsoNormal">If how extending an instance type is relatively clear.<u></u><u></u></p>
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<p class="MsoNormal"><u></u> <u></u></p>
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<p class="MsoNormal">Eg.: #nova-manage instance_type set_key --name=<my.instancetype> --key <cpu_arch> --value <'s== x86_64'> <u></u><u></u></p>
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<p class="MsoNormal"><u></u> <u></u></p>
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<p class="MsoNormal">The principles of capability advertising is less clearer. Is it assumed that the key/value pairs are always declared statically as flags in nova.conf of the compute node, or can they be generated dynamically and if so, who would that be?
And also, are the keys completely free form strings or strings that are known (reserved) by Nova?<u></u><u></u></p>
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<p class="MsoNormal"><u></u> <u></u></p>
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<p class="MsoNormal">Thanks in advance for clarifying this.<u></u><u></u></p>
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<p class="MsoNormal"><u></u> <u></u></p>
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<p class="MsoNormal">Patrick<u></u><u></u></p>
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</blockquote></div></div></div><span class="HOEnZb"><font color="#888888"><br><br clear="all"><div><br></div>-- <br><i>"Give me a place to stand, and I shall move the earth with a lever"</i><br>
</font></span></div>
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<br></blockquote></div><br><br clear="all"><div><br></div>-- <br>Vinay Bannai<br>Email: <a href="mailto:vbannai@gmail.com">vbannai@gmail.com</a><br>Google Voice: 415 938 7576<br><br>
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