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9.3. 替换 Compute 节点
当一个 Compute 节点出现问题时，您可以使用一个正常的节点替换它。使用以下步骤替换 Compute 节点：
- 迁移 Compute 节点上的负载并关闭节点。详细信息，请参阅 第 8.9 节 “从一个 Overcloud Compute 节点中迁移虚拟机”。
- 从 Overcloud 中删除 Compute 节点。详细信息，请参阅 第 9.2 节 “删除 Compute 节点”。
- 添加新 Compute 节点扩展 Overcloud。详细信息，请参阅 第 9 章 扩展 Overcloud。
这个过程确保了替换节点的操作不会影响到任何实例的可用性。
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