Each operating system instance is assigned a node name.
给每个操作系统实例分配一个节点名。
In this layer, they also run a second HDFS installation (with a separate name node), which acts as a hot standy - if the primary HDFS is down, the system writes to the backup HDFS.
在这个层次，运行第二个HDFS实例(使用单独的名字节点)，作为热备份——如果主HDFS宕机，系统将向备份的HDFS写入。
In this context, a "node" refers to an instance of an operating system, whether or not it is part of a cluster or a standalone system, and the node name is a separate entity from the host name.
在这个上下文中，“节点”是指一个操作系统实例，它可能是集群的一部分或单独的系统，节点名与主机名是不同的实体。
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