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<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D">If it is not going to nova-compute, it must be thrown out directly at nova-api due to any of the following reasons:<o:p></o:p></span></p>
<p class="MsoListParagraph" style="text-indent:-.25in;mso-list:l0 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">No valid host to launch the instance: Though you can see free memory on the compute node, but it does check for few more things: disk space and CPU.
Please note that the disk space being looked at is the theoretical value. <o:p></o:p></span></p>
<p class="MsoListParagraph" style="text-indent:-.25in;mso-list:l0 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">The instance flavor type is incorrect. The image uploaded might have not been specified the right correct min. disk and min. memory needs. So, if
you use tiny flavor and the image really requires more than 2 GB of root, it is going to fail.
<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">You may like to run the following command:<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:9.0pt;font-family:"Courier New";color:#23302D">nova hypervisor-stats<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~hrushi<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"><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""> Vikash Kumar [mailto:vikash.kumar@oneconvergence.com]
<br>
<b>Sent:</b> Monday, July 07, 2014 9:13 PM<br>
<b>To:</b> Openstack Milis; openstack-dev<br>
<b>Subject:</b> [Openstack] [Nova] Launch of VM failed after certain count openstack Havana<o:p></o:p></span></p>
<p class="MsoNormal"><o:p> </o:p></p>
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<p class="MsoNormal" style="margin-bottom:12.0pt">Hi all,<o:p></o:p></p>
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<p class="MsoNormal" style="margin-bottom:12.0pt"> I am facing issue with VM launch. I am using openstack
<b>Havana.</b> I have one compute node with following specification:<br>
<br>
root@compute-node:~# lscpu<br>
Architecture: x86_64<br>
CPU op-mode(s): 32-bit, 64-bit<br>
Byte Order: Little Endian<br>
CPU(s): 8<br>
On-line CPU(s) list: 0-7<br>
Thread(s) per core: 1<br>
Core(s) per socket: 4<br>
Socket(s): 2<br>
NUMA node(s): 1<br>
Vendor ID: GenuineIntel<br>
CPU family: 6<br>
Model: 15<br>
Stepping: 7<br>
CPU MHz: 1995.104<br>
BogoMIPS: 3990.02<br>
Virtualization: VT-x<br>
L1d cache: 32K<br>
L1i cache: 32K<br>
L2 cache: 4096K<br>
NUMA node0 CPU(s): 0-7<br>
<br>
root@compute-node:~# free -h<br>
total used free shared buffers cached<br>
Mem: 15G 1.5G 14G 0B 174M 531M<br>
-/+ buffers/cache: 870M 14G<br>
Swap: 15G 0B 15G<br>
<br>
<o:p></o:p></p>
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<p class="MsoNormal" style="margin-bottom:12.0pt">But I am not able to launch more than 12-14 VM. VM launch fails. Even I don't see
<b>ERROR </b>logs in any of nova logs on both <b>openstack controller and compute node.</b> Don't see any request coming to compute node also. I just tailed nova compute logs on compute node. As soon as, I clean the previous VMs , everything works fine. I have
never observed this with Grizzly.<br>
<br>
<o:p></o:p></p>
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<p class="MsoNormal">Regards,<o:p></o:p></p>
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<p class="MsoNormal">Vikash<o:p></o:p></p>
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<p class="MsoNormal"><o:p> </o:p></p>
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