[Hadoop] start-dfs.sh ssh报错

Permission denied (publickey

决解方案

相关命令

cd ~/.ssh

ssh-keygen -t rsa -p""

cat id_rsa.pub >> authorized_keys

chmod 0600 authorized_keys

相关链接Hadoop: start-dfs.sh permission denied - Stack Overflow

Java HotSpot(TM) Server VM warning: You have loaded library /usr/local/hadoop/lib/native/libhadoop.so.1.0.0 which might have disabled stack guard. The VM will try to fix the stack guard now.

It's highly recommended that you fix the library with 'execstack -c <libfile>', or link it with '-z noexecstack'.
2023-09-14 20:28:11,146 WARN util.NativeCodeLoader: Unable to load native-hadoop library for your platform... using builtin-java classes where applicable

解决方法

#hadoop lib
export HADOOP_COMMON_LIB_NATIVE_DIR=$HADOOP_HOME/lib/native

export HADOOP_OPTS="-Djava.library.path=$HADOOP_HOME/lib"

结果:还有一个警告(但是可以忽略...)

WARN util.NativeCodeLoader: Unable to load native-hadoop library for your platform... using builtin-java classes where applicable

决解方法

https://www.cnblogs.com/shoufeng/p/14940245.html