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                ThinkChat2.0新版上線,更智能更精彩,支持會話、畫圖、視頻、閱讀、搜索等,送10W Token,即刻開啟你的AI之旅 廣告
                [TOC] ## 前提條件: 1. 至少有2個計算節點 2. 2個計算節點必須處于同一個可用區域 3. 計算節點,有足夠的剩余計算資源 ## 配置操作 ### 1.配置計算節點nova用戶互信 **所有計算節點** 在所有節點上,設置nova用戶使用bash工具 ```sh usermod -s /bin/bash nova ``` **計算節點1[0.31]:** 切換到nova賬號--生成秘鑰對--對自己授信--拷貝到另一個節點 ```sh su - nova ssh-keygen -q -N "" -f ~/.ssh/id_rsa cp -fa .ssh/id_rsa.pub .ssh/authorized_keys scp -rp .ssh root@10.0.0.32:`pwd` ``` **計算節點2[0.32]:** 對拷貝過來的秘鑰授權 ```sh chown -R nova:nova /var/lib/nova ``` 分別在nova賬號下進行免秘鑰登錄測試,測試成功后才能做后續操作 ### 2.修改控制節點nova服務配置 **修改控制節點nova.conf** nova.conf的default模塊中添加`scheduler_default_filters`配置 ```sh vi /etc/nova/nova.conf [DEFAULT] scheduler_default_filters=RetryFilter,AvailabilityZoneFilter,RamFilter,DiskFilter,ComputeFilter,ComputeCapabilitiesFilter,ImagePropertiesFilter,ServerGroupAntiAffinityFilter,ServerGroupAffinityFilter ``` **重啟openstack-nova-scheduler** ```sh systemctl restart openstack-nova-scheduler.service ``` **修改計算節點nova配置** nova.conf的default模塊添加`allow_resize_to_same_host = True`配置 ```sh openstack-config --set /etc/nova/nova.conf DEFAULT allow_resize_to_same_host True ``` **重啟openstack-nova-compute** ```sh systemctl restart openstack-nova-compute.service ``` **最后在dashboard上進行操作** 完成以上配置后,就可以在web界面進行云主機的冷遷移 系統--實例--實例下拉箭頭--遷移實例
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