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Hadoop 的版本和安装位置是否必须在集群中的所有节点上完全相同?例如,如果我在 /usr/local/hadoop 的主节点上安装了 hadoop-0.18.2,那么版本和安装目录是否必须在所有数据节点中都相同?
是的,它们必须相同,否则您将遇到重大问题。