我已经按照从这个网站安装 Hadoop 的每一个步骤 https://www.digitalocean.com/community/tutorials/how-to-install-hadoop-on-ubuntu-13-10
除了我使用 start-dfs.sh 启动 Hadoop 的最后一步之外，所有步骤都很好，但出现了很多错误。请帮忙。
错误是:
15/04/07 00:08:16 WARN util.NativeCodeLoader: Unable to load native-hadoop library for your platform... using builtin-java classes where applicable
Starting namenodes on [localhost]
localhost: mkdir: cannot create directory ‘/usr/local/hadoop/logs’: Permission denied
localhost: chown: cannot access ‘/usr/local/hadoop/logs’: No such file or directory
localhost: starting namenode, logging to /usr/local/hadoop/logs/hadoop-tushar-namenode-tushar-VirtualBox.out
localhost: /usr/local/hadoop/sbin/hadoop-daemon.sh: line 159: /usr/local/hadoop/logs/hadoop-tushar-namenode-tushar-VirtualBox.out: No such file or directory
localhost: head: cannot open ‘/usr/local/hadoop/logs/hadoop-tushar-namenode-tushar-VirtualBox.out’ for reading: No such file or directory
localhost: /usr/local/hadoop/sbin/hadoop-daemon.sh: line 177: /usr/local/hadoop/logs/hadoop-tushar-namenode-tushar-VirtualBox.out: No such file or directory
localhost: /usr/local/hadoop/sbin/hadoop-daemon.sh: line 178: /usr/local/hadoop/logs/hadoop-tushar-namenode-tushar-VirtualBox.out: No such file or directory
localhost: mkdir: cannot create directory ‘/usr/local/hadoop/logs’: Permission denied
localhost: chown: cannot access ‘/usr/local/hadoop/logs’: No such file or directory
localhost: starting datanode, logging to /usr/local/hadoop/logs/hadoop-tushar-datanode-tushar-VirtualBox.out
localhost: /usr/local/hadoop/sbin/hadoop-daemon.sh: line 159: /usr/local/hadoop/logs/hadoop-tushar-datanode-tushar-VirtualBox.out: No such file or directory
localhost: head: cannot open ‘/usr/local/hadoop/logs/hadoop-tushar-datanode-tushar-VirtualBox.out’ for reading: No such file or directory
localhost: /usr/local/hadoop/sbin/hadoop-daemon.sh: line 177: /usr/local/hadoop/logs/hadoop-tushar-datanode-tushar-VirtualBox.out: No such file or directory
localhost: /usr/local/hadoop/sbin/hadoop-daemon.sh: line 178: /usr/local/hadoop/logs/hadoop-tushar-datanode-tushar-VirtualBox.out: No such file or directory
Starting secondary namenodes [0.0.0.0]
0.0.0.0: mkdir: cannot create directory ‘/usr/local/hadoop/logs’: Permission denied
0.0.0.0: chown: cannot access ‘/usr/local/hadoop/logs’: No such file or directory
0.0.0.0: starting secondarynamenode, logging to /usr/local/hadoop/logs/hadoop-tushar-secondarynamenode-tushar-VirtualBox.out
0.0.0.0: /usr/local/hadoop/sbin/hadoop-daemon.sh: line 159: /usr/local/hadoop/logs/hadoop-tushar-secondarynamenode-tushar-VirtualBox.out: No such file or directory
0.0.0.0: head: cannot open ‘/usr/local/hadoop/logs/hadoop-tushar-secondarynamenode-tushar-VirtualBox.out’ for reading: No such file or directory
0.0.0.0: /usr/local/hadoop/sbin/hadoop-daemon.sh: line 177: /usr/local/hadoop/logs/hadoop-tushar-secondarynamenode-tushar-VirtualBox.out: No such file or directory
0.0.0.0: /usr/local/hadoop/sbin/hadoop-daemon.sh: line 178: /usr/local/hadoop/logs/hadoop-tushar-secondarynamenode-tushar-VirtualBox.out: No such file or directory
15/04/07 00:08:34 WARN util.NativeCodeLoader: Unable to load native-hadoop library for your platform... using builtin-java classes where applicable
最佳答案
您的用户帐户没有对 /usr/local/hadoop 的正确权限目录，因此 Hadoop 在尝试创建其日志时失败。尝试运行 sudo chown -R <username> /usr/local/hadoop你的用户名在哪里。要获取您的用户名，您可以使用 whoami命令。
关于java - Hadoop单节点集群报错，我们在Stack Overflow上找到一个类似的问题： https://stackoverflow.com/questions/29477572/