[root@nn1 hadoop-2.9.0]# ./sbin/start-dfs.sh
Starting namenodes on [nn1]
nn1: namenode running as process 2707. Stop it first.
nn1: datanode running as process 2859. Stop it first.
dn1: bash: line 0: cd: /home/user1/hadoop-2.9.0: No such file or directory
dn1: bash: /home/user1/hadoop-2.9.0/sbin/hadoop-daemon.sh: No such file or directory
dn2: bash: line 0: cd: /home/user1/hadoop-2.9.0: No such file or directory
dn2: bash: /home/user1/hadoop-2.9.0/sbin/hadoop-daemon.sh: No such file or directory
Starting secondary namenodes [0.0.0.0]
0.0.0.0: secondarynamenode running as process 3052. Stop it first.
[root@nn1 hadoop-2.9.0]#
供参考:
Master:
Hostname= nn1
Username= user1
Slave1:
主机名=dn1
用户名=slave1
slave2:
主机名=dn2
用户名=slave2
您以 root 用户的身份运行命令,而不是user1
它正在寻找文件的地方。
而且你真的不应该以 root 身份运行 Hadoop 的任何组件
它还表示您的进程正在运行,因此不清楚您为什么要再次启动它们
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