The authenticity of host 'hadoop000 (127.0.0.1)' can't be established

Question

[root@master-yzjbz2547615666-1574134705683-1119608 sbin]# ./start-dfs.sh
20/05/19 10:28:48 WARN util.NativeCodeLoader: Unable to load native-hadoop library for your platform… using builtin-java classes where applicable
Starting namenodes on [hadoop000]
The authenticity of host ‘hadoop000 (127.0.0.1)’ can’t be established.
ECDSA key fingerprint is SHA256:mK/hOST/auLCw6panXwdCZj1iUYObG26IKXuy/ZAKJM.
ECDSA key fingerprint is MD5:5d:a0:5f:aa:e6:bd:78:0b:11:37:e7:3c:81:d7:bb:b5.
Are you sure you want to continue connecting (yes/no)? no
格式化，配置都做好了，启动就报错，老师请问怎么处理？
我的是云服务器，/etc/hosts 文件配置如下
[root@master-yzjbz2547615666-1574134705683-1119608 hadoop-2.6.0-cdh5.15.1]# cat /etc/hosts
::1 localhost localhost.localdomain localhost6 localhost6.localdomain6

127.0.0.1 hadoop000
127.0.0.1 localhost localhost.localdomain localhost4 localhost4.localdomain4
127.0.0.1 ecs-cf3b.novalocal ecs-cf3b
127.0.0.1 ecs-cf3b.novalocal ecs-cf3b.novalocal
127.0.0.1 ecs-test01.novalocal ecs-test01.novalocal
127.0.0.1 ecs-tst0001.novalocal ecs-tst0001.novalocal
127.0.0.1 ecs-c264.novalocal ecs-c264.novalocal
127.0.0.1 ecs-e60a.novalocal ecs-e60a.novalocal
127.0.0.1 master-yzjbz2547615666-1574134705683-1119608.novalocal master-yzjbz2547615666-1574134705683-1119608.novalocal

Answer 1

Michael_PK 2020-05-19 10:55:59

格式化确定成功没，有成功的字样的日志吗？那地方应该要输入yes吧。你启动后缺少什么进程就去logs下找到对应缺失进程的日志去分析是什么原因

• 提问者 慕数据4146799 #1

  格式化成功了Storage directory /root/bigdata/app/tmp/dfs/name has been successfully formatted；
  我看你视频，你是starting secondary namenodes 的时候才会弹出这个yes/no 我是在starting namenodes 的时候就弹出提示

• Michael_PK 回复 提问者 慕数据4146799 #2

  这个弹出是ssh没配置OK

• 提问者 慕数据4146799 回复 Michael_PK #3

  Are you sure you want to continue connecting (yes/no)? yes
  hadoop000: Warning: Permanently added 'hadoop000' (ECDSA) to the list of known hosts.
  hadoop000: Authentication failed.
  少了namenode 进程，并且没有这个进程log 文件

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