轉載 http://blog.sina.com.cn/s/blog_6de3aa8a0102vgoo.html
注意:使用ceilometer監控虛擬機的memory.usage,要求libvirt版本1.1.1+,qemu版本1.5+。並且需要鏡像支持balloon,即鏡像中安裝有balloon的driver。(一般linux鏡像都默認包含,但是windows鏡像需要另行安裝,參考[1])
1 查看版本
# ceilometer --version
1.0.14 (kilo版本,或者https://review.openstack.org/#/c/90498/ 之後的版本,參考[2])
# gnocchi爲master版本(stable 1.0.0之後)
# virsh version
Compiled against library: libvirt 1.2.8
Using library: libvirt 1.2.8
Using API: QEMU 1.2.8
Running hypervisor: QEMU 1.5.3
2 配置nova
/etc/nova/nova.conf
[DEFAULT]
instance_usage_audit = True
instance_usage_audit_period = hour
notify_on_state_change = vm_and_task_state
notification_driver = messagingv2
[libvirt]
mem_stats_period_seconds=10
3 啓動虛擬機(手工驗證,參考[3])
virsh dumpxml domain-id
需要包括如下:
virsh dommemstat domain-id
除了actual和rss還要有別的項目數據(也剛創建完成可能不會出現全部的數據,需要等待一會)
actual 6291456
swap_in 0
swap_out 0
major_fault 699
minor_fault 15983737
unused 2386012
available 6111780
rss 4247448
參考:
[1]https://access.redhat.com/documentation/en-US/Red_Hat_Enterprise_Linux/6/html/Virtualization_Host_Configuration_and_Guest_Installation_Guide/form-Virtualization_Host_Configuration_and_Guest_Installation_Guide-Para_virtualized_drivers-Mounting_the_image_with_virt_manager.html
[2]https://github.com/openstack/ceilometer/commit/135961088d603a0ae1b51eb84d9dc7d62dc76476
[3] http://paste.openstack.org/show/78624/