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Insufficient compute resources: Requested instance NUMA topology cannot fit the given host NUMA topology

asked 2016-03-07 22:40:05 -0500

yby-developer gravatar image

updated 2016-03-07 22:51:52 -0500

I think this may be a bug, as my host has all the numa/hugepages properties required for this flavor as far as I know:


extra_specs:{"hw:cpu_policy": "dedicated", "hw:mem_page_size": "large", "aggregate_instance_extra_specs:pinned": "true", "hw:numa_node.0": "0", "hw:numa_nodes": "1", "hw:cpu_model": "Haswell"}

ram: 512


virsh capabilities:

  <cells num='2'>
    <cell id='0'>
      <memory unit='KiB'>65855052</memory>
      <pages unit='KiB' size='4'>16463763</pages>
      <pages unit='KiB' size='2048'>4096</pages>
        <sibling id='0' value='10'/>
        <sibling id='1' value='21'/>
      <cpus num='24'>

vm hugepages:

$:~/libvirt-1.2.12# cat /proc/sys/vm/nr_hugepages


$:~/libvirt-1.2.12# grep -i huge /proc/meminfo
AnonHugePages:    528384 kB
HugePages_Total:    8192
HugePages_Free:     7680
HugePages_Rsvd:        0
HugePages_Surp:        0
Hugepagesize:       2048 kB


$:~/libvirt-1.2.12# mount|grep huge
cgroup on /sys/fs/cgroup/hugetlb type cgroup (rw,nosuid,nodev,noexec,relatime,hugetlb)
hugetlbfs on /dev/hugepages type hugetlbfs (rw,relatime)
nodev on /mnt/huge type hugetlbfs (rw,relatime,uid=107,gid=113)


$# nova --version 2.23.3

This is openstack kilo on Debian 8.

Am I missing anything?

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2 answers

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answered 2017-02-02 06:52:35 -0500

I Have a similar problem. Did you find answer to it ?

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answered 2018-08-16 18:56:57 -0500

spamulap gravatar image

In my case it was due to incorrect Ram allocation in the flavor. Initially I had 14.5GB after this error I rounded it to 15GB.

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Asked: 2016-03-07 22:40:05 -0500

Seen: 4,696 times

Last updated: Mar 07 '16