启动hadoop时遇到Host key verification failed.

最新推荐文章于 2025-06-20 15:05:01 发布

Cytues

最新推荐文章于 2025-06-20 15:05:01 发布

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本文链接：https://blog.youkuaiyun.com/qq_41805514/article/details/88795541

在启动Hadoop的namenode时遇到了'Host key verification failed.'的问题，影响了datanode2, datanode3和namenode。问题根源在于ssh的known_hosts文件。通过参照解决方案，清理并更新known_hosts文件，使其与已成功启动的dn1节点保持一致，最终成功运行start-dfs.sh，解决了启动问题。" 102711472,5627378,Android HTTP网络编程详解,"['Android网络', 'HTTP协议', 'HTTP缓存']

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问题如下：

[root@namenode sbin]# start-dfs.sh
Starting namenodes on [NN]
The authenticity of host 'nn (192.168.4.16)' can't be established.
ECDSA key fingerprint is SHA256:+80GiOqSsCJkefY9527/CCs/MGqkBYsNpuLPSTCkJ7w.
ECDSA key fingerprint is MD5:cb:7c:80:72:5a:81:02:5f:08:2f:e5:59:a8:59:12:df.
Are you sure you want to continue connecting (yes/no)? yes
NN: Warning: Permanently added 'nn,192.168.4.16' (ECDSA) to the list of known hosts.
NN: starting namenode, logging to /home/loli/hadoop-2.6.0/logs/hadoop-root-namenode-namenode.out
The authenticity of host 'dn2 (192.168.4.63)' can't be established.
ECDSA key fingerprint is SHA256:+80GiOqSsCJkefY9527/CCs/MGqkBYsNpuLPSTCkJ7w.
ECDSA key fingerprint is MD5:cb:7c:80:72:5a:81:02:5f:08:2f:e5:59:a8:59:12:df.
Are you sure you want to continue connecting (yes/no)? The authenticity of host 'dn3 (192.168.4.73)' can't be established.
ECDSA key fingerprint is SHA256:+80GiOqSsCJkefY9527/CCs/MGqkBYsNpuLPSTCkJ7w.
ECDSA key finge