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ATMathew
Asked: 2011-04-29 17:34:01 +0800 CST

在 Hadoop 中启动单节点集群时出现“权限被拒绝”错误

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我在 Ubuntu 10.10 中工作，并试图在 Hadoop 中启动一个单节点集群。

hadoop@abraham-Dimension-3000:/usr/local/hadoop$ bin/start-all.sh
mkdir: cannot create directory `/usr/local/hadoop/bin/../logs': Permission denied
starting namenode, logging to /usr/local/hadoop/bin/../logs/hadoop-hadoop-namenode-abraham-Dimension-3000.out
/usr/local/hadoop/bin/hadoop-daemon.sh: line 117: /usr/local/hadoop/bin/../logs/hadoop-hadoop-namenode-abraham-Dimension-3000.out: No such file or directory
head: cannot open `/usr/local/hadoop/bin/../logs/hadoop-hadoop-namenode-abraham-Dimension-3000.out' for reading: No such file or directory
localhost: mkdir: cannot create directory `/usr/local/hadoop/bin/../logs': Permission denied
localhost: starting datanode, logging to /usr/local/hadoop/bin/../logs/hadoop-hadoop-datanode-abraham-Dimension-3000.out
localhost: /usr/local/hadoop/bin/hadoop-daemon.sh: line 117: /usr/local/hadoop/bin/../logs/hadoop-hadoop-datanode-abraham-Dimension-3000.out: No such file or directory
localhost: head: cannot open `/usr/local/hadoop/bin/../logs/hadoop-hadoop-datanode-abraham-Dimension-3000.out' for reading: No such file or directory
localhost: mkdir: cannot create directory `/usr/local/hadoop/bin/../logs': Permission denied
localhost: starting secondarynamenode, logging to /usr/local/hadoop/bin/../logs/hadoop-hadoop-secondarynamenode-abraham-Dimension-3000.out
localhost: /usr/local/hadoop/bin/hadoop-daemon.sh: line 117: /usr/local/hadoop/bin/../logs/hadoop-hadoop-secondarynamenode-abraham-Dimension-3000.out: No such file or directory
localhost: head: cannot open `/usr/local/hadoop/bin/../logs/hadoop-hadoop-secondarynamenode-abraham-Dimension-3000.out' for reading: No such file or directory
mkdir: cannot create directory `/usr/local/hadoop/bin/../logs': Permission denied
starting jobtracker, logging to /usr/local/hadoop/bin/../logs/hadoop-hadoop-jobtracker-abraham-Dimension-3000.out
/usr/local/hadoop/bin/hadoop-daemon.sh: line 117: /usr/local/hadoop/bin/../logs/hadoop-hadoop-jobtracker-abraham-Dimension-3000.out: No such file or directory
head: cannot open `/usr/local/hadoop/bin/../logs/hadoop-hadoop-jobtracker-abraham-Dimension-3000.out' for reading: No such file or directory
localhost: mkdir: cannot create directory `/usr/local/hadoop/bin/../logs': Permission denied
localhost: starting tasktracker, logging to /usr/local/hadoop/bin/../logs/hadoop-hadoop-tasktracker-abraham-Dimension-3000.out
localhost: /usr/local/hadoop/bin/hadoop-daemon.sh: line 117: /usr/local/hadoop/bin/../logs/hadoop-hadoop-tasktracker-abraham-Dimension-3000.out: No such file or directory
localhost: head: cannot open `/usr/local/hadoop/bin/../logs/hadoop-hadoop-tasktracker-abraham-Dimension-3000.out' for reading: No such file or directory
hadoop@abraham-Dimension-3000:/usr/local/hadoop$

我不知道我做错了什么或其中一些错误暗示了什么。

hadoop@abraham-Dimension-3000:/usr/local/hadoop$ jps
5099 Jps

任何人都可以诊断问题。

hadoop

2 个回答

  1. Best Answer

    这些错误表明存在权限问题。

    确保 hadoop 用户对/usr/local/hadoop. 尝试：

    sudo chown -R hadoop /usr/local/hadoop/
    • 21

  2. 你用非hadoop用户指定了hadoop文件系统的工作目录，所以设置有读写权限的目录给hadoop用户或者改变目录的所有者
    试试::

    sudo chown -R hadoop-user /user/hadoop_project/

    或者

    sudo chmod 777 /user/hadoop_project

    hadoop 环境的“hadoop-user”登录名在哪里。'hadoop-project' 为 hadoop 文件系统指定工作目录。（指定您自己的登录名和用于安装 hadoop 的目录）

    • 1

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