虚拟机快照机制说明

[待补充]

动态快照设置选项说明与默认值

[workarounds] # When using libvirt 1.2.2 live snapshots fail intermittently under load. This # config option provides a mechanism to enable live snapshot while this is # resolved. See https://bugs.launchpad.net/nova/+bug/1334398 (boolean value) #disable_libvirt_livesnapshot=true

检查使用的libvirt版本

[root@qs-cloud-kvm-02 ~]# rpm -aq | grep libvirt libvirt-daemon-1.2.17-13.el7_2.5.x86_64 libvirt-daemon-kvm-1.2.17-13.el7_2.5.x86_64

libvirt版本为1.2.17 而不是1.2.2，可以启用动态快照

启用动态快照

disable_libvirt_livesnapshot=false

验证

[略]