hadoop搭建，怎么办啊

Question

hadoop搭建问题，搞三天了，从头搞了好几遍，一直各种问题，真的要崩溃了

[hadoop@master ~]$ cd $HADOOP_HOME/sbin
[hadoop@master sbin]$ ./start-all.sh
WARNING: Attempting to start all Apache Hadoop daemons as hadoop in 10 seconds.
WARNING: This is not a recommended production deployment configuration.
WARNING: Use CTRL-C to abort.
Starting namenodes on [master]
master: Permission denied (publickey,gssapi-keyex,gssapi-with-mic,password).
Starting datanodes
slave2: datanode is running as process 2561.  Stop it first and ensure /tmp/hadoop-hadoop-datanode.pid file is empty before retry.
slave1: datanode is running as process 6860.  Stop it first and ensure /tmp/hadoop-hadoop-datanode.pid file is empty before retry.
Starting secondary namenodes [master]
master: Permission denied (publickey,gssapi-keyex,gssapi-with-mic,password).
/usr/hadoop-3.3.5//etc/hadoop/yarn-env.sh: line 1: [/usr/lib/jvm/java-1.8.0-openjdk-1.8.0.262.b10-1.el7.x86_64/jre: No such file or directory
Starting resourcemanager
resourcemanager is running as process 2952.  Stop it first and ensure /tmp/hadoop-hadoop-resourcemanager.pid file is empty before retry.
Starting nodemanagers
slave2: /usr/hadoop-3.3.5//etc/hadoop/yarn-env.sh: line 1: [/usr/lib/jvm/java-1.8.0-openjdk-1.8.0.262.b10-1.el7.x86_64/jre: No such file or directory
slave1: /usr/hadoop-3.3.5//etc/hadoop/yarn-env.sh: line 1: [/usr/lib/jvm/java-1.8.0-openjdk-1.8.0.262.b10-1.el7.x86_64/jre: No such file or directory
slave2: nodemanager is running as process 2697.  Stop it first and ensure /tmp/hadoop-hadoop-nodemanager.pid file is empty before retry.
slave1: nodemanager is running as process 6984.  Stop it first and ensure /tmp/hadoop-hadoop-nodemanager.pid file is empty before retry.

Answer 1

让【道友老李】来帮你解答，本回答参考gpt编写，并整理提供，如果还有疑问可以点击头像关注私信或评论。

如果答案让您满意，请采纳、关注，非常感谢！

根据错误提示，在启动Hadoop时，出现了文件权限的问题以及Java环境配置的问题。可以尝试以下解决方法：

1. 关于"Permission denied"的问题，可以检查文件权限是否正确，确保Hadoop用户有权限执行相关操作。可以尝试使用sudo或者切换到对应的用户进行操作。
2. Java环境配置问题可以通过编辑对应的配置文件进行修正。在这里是指yarn-env.sh文件中的路径配置错误，可以打开该文件，找到错误的路径并将其修改为正确的Java路径。 解决以上问题后，重新启动Hadoop集群。如果还有其他问题，可以把详细的错误信息提供出来，以便进一步帮助解决。