红帽全球峰会4.6. 更新所有 Compute 节点
此过程会将所有 Compute 节点更新至最新的 OpenStack Platform 13 版本。此过程涉及运行 openstack overcloud update run 命令，并包括 --nodes Compute 选项，以限制仅向 Compute 节点限制操作。
- 并行化注意事项
当您更新大量 Compute 节点以提高性能时，您可以在 20 个节点时并行使用
--nodes Compute选项运行openstack overcloud update run命令。例如，如果您的部署中有 80 个 Compute 节点，您可以运行以下命令来并行更新 Compute 节点：openstack overcloud update run --nodes 'Compute[0:19]' > update-compute-0-19.log 2>&1 & openstack overcloud update run --nodes 'Compute[20:39]' > update-compute-20-39.log 2>&1 & openstack overcloud update run --nodes 'Compute[40:59]' > update-compute-40-59.log 2>&1 & openstack overcloud update run --nodes 'Compute[60:79]' > update-compute-60-79.log 2>&1 &
$ openstack overcloud update run --nodes 'Compute[0:19]' > update-compute-0-19.log 2>&1 & $ openstack overcloud update run --nodes 'Compute[20:39]' > update-compute-20-39.log 2>&1 & $ openstack overcloud update run --nodes 'Compute[40:59]' > update-compute-40-59.log 2>&1 & $ openstack overcloud update run --nodes 'Compute[60:79]' > update-compute-60-79.log 2>&1 &Copy to Clipboard Copied! Toggle word wrap Toggle overflow 'Compute[0:19]','Compute[20:39]','Compute[40:59]', 和'Compute[60:79]'方法对节点进行分区是随机的，您没有控制每个批处理中更新节点的顺序。要更新特定的 Compute 节点，请列出您要在以逗号分隔的批处理中更新的节点：
openstack overcloud update run --nodes <Compute0>,<Compute1>,<Compute2>,<Compute3>
$ openstack overcloud update run --nodes <Compute0>,<Compute1>,<Compute2>,<Compute3>Copy to Clipboard Copied! Toggle word wrap Toggle overflow
流程
Source
stackrc文件：source ~/stackrc
$ source ~/stackrcCopy to Clipboard Copied! Toggle word wrap Toggle overflow 运行更新命令：
openstack overcloud update run --nodes Compute
$ openstack overcloud update run --nodes ComputeCopy to Clipboard Copied! Toggle word wrap Toggle overflow - 等待 Compute 节点更新完成。
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