Question

安装hadoop并将HADOOP_HOME设置为/ usr / local / hadoop / bin / hadoop后，只需在终端输入hadoop运行hadoop，就说我没有权限。然后我尝试用sudo运行它，然后它说，sudo：command not found

Answer 1

HADOOP_HOME应指向/usr/local/hadoop。
如果要在终端中键入hadoop，则必须将其添加到全局路径变量中。为此，请在/home/hadoopuser/.bashrc：
中添加这些行
export HADOOP_HOME=/usr/local/hadoop

export PATH=$PATH:$HADOOP_HOME/bin

注意：hadoopuser 是您的hadoop用户名。将其替换为您的用户名。

Answer 2

如果使用的是Mac OS，请在〜/ .bash_profile中添加以下行；

export JAVA_HOME=/Library/Java/JavaVirtualMachines/jdk1.8.0_91.jdk/Contents/Home
export HADOOP_HOME=/Users/karanverma/Documents/backups/h/hadoop-2.6.4
export PATH=$PATH:$HADOOP_HOME/bin
export PATH=$PATH:$HADOOP_HOME/sbin
export HADOOP_PREFIX=/Users/karanverma/Documents/backups/h/hadoop-2.6.4
export HADOOP_CONF_DIR=$HADOOP_HOME/etc/hadoop
export HADOOP_MAPRED_HOME=$HADOOP_HOME
export HADOOP_COMMON_HOME=$HADOOP_HOME
export HADOOP_HDFS_HOME=$HADOOP_HOME
export YARN_HOME=$HADOOP_HOME

export HADOOP_COMMON_LIB_NATIVE_DIR=$HADOOP_HOME/lib/native
export HADOOP_OPTS="-Djava.library.path=$HADOOP_HOME/lib"
export HADOOP_CLASSPATH=${JAVA_HOME}/lib/tools.jar

export JAVA_LIBRARY_PATH=$HADOOP_HOME/lib/native:$JAVA_LIBRARY_PATH

export PATH=/usr/local/mysql/bin:/Users/bng/Documents/mongodb/bin:$JAVA_HOME/bin:$HADOOP_HOME/bin:$HADOOP_HOME/sbin:$PATH

Hadoop正确地将HADOOP_HOME设置为bin / hadoop它会找不到命令

2 个答案: