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集群启动流程


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先初始化启动 ConfigNode,等 ConfigNode 初始节点启动成功后,可以开始启动 DataNode 节点、或者新增 ConfigNode 节点。增删节点区分节点停机和移除操作,停机为正常停机,并未从集群移除,因此无需进行数据迁移和复制。