11.3. 解决方案

grep reserved_huge /var/lib/config-data/puppet-generated/nova_libvirt/etc/nova/nova.conf -B1

[root@overcloud-compute-1 virt]# grep reserved_huge /var/lib/config-data/puppet-generated/nova_libvirt/etc/nova/nova.conf -B1
[DEFAULT]
reserved_huge_pages=node:0,size:2048,count:512
reserved_huge_pages=node:1,size:2048,count:512

[DEFAULT]
reserved_huge_pages=node:0,size:1GB,count:4
reserved_huge_pages=node:1,size:1GB,count:4

[DEFAULT]
reserved_huge_pages=node:0,size:1GB,count:4
reserved_huge_pages=node:1,size:1GB,count:4

reserved_huge_pages = None

(Unknown) Number of huge/large memory pages to reserved per NUMA host cell.

Possible values:

    A list of valid key=value which reflect NUMA node ID, page size (Default unit is KiB) and number of pages to be reserved.

    reserved_huge_pages = node:0,size:2048,count:64 reserved_huge_pages = node:1,size:1GB,count:1

    In this example we are reserving on NUMA node 0 64 pages of 2MiB and on NUMA node 1 1 page of 1GiB.

reserved_huge_pages = None

(Unknown) Number of huge/large memory pages to reserved per NUMA host cell.

Possible values:

    A list of valid key=value which reflect NUMA node ID, page size (Default unit is KiB) and number of pages to be reserved.

    reserved_huge_pages = node:0,size:2048,count:64 reserved_huge_pages = node:1,size:1GB,count:1

    In this example we are reserving on NUMA node 0 64 pages of 2MiB and on NUMA node 1 1 page of 1GiB.

docker restart nova_compute
grep reserved_huge_pages /var/log/containers/nova/nova-compute.log | tail -n1

[root@overcloud-compute-1 virt]# docker restart nova_compute
(...)
[root@overcloud-compute-1 virt]# grep reserved_huge_pages /var/log/containers/nova/nova-compute.log | tail -n1
2017-12-19 17:56:40.727 26691 DEBUG oslo_service.service [req-e681e97d-7d99-4ba8-bee7-5f7a3f655b21 - - - - -]
reserved_huge_pages            = [{'node': '0', 'count': '512', 'size': '2048'}, {'node': '1', 'count': '512', 'size':
'2048'}] log_opt_values /usr/lib/python2.7/site-packages/oslo_config/cfg.py:2622
[root@overcloud-compute-1 virt]#