无法以 root 用户身份在 /var/log 下创建目录

Question

以下错误的原因可能是什么。我以 root 用户身份运行脚本。我相信 root 用户必须具有超级用户权限。它失败并出现以下错误

mkdir: 无法创建目录'/var/log/hadoop': 权限被拒绝

(base) [root@localhost ~]# cat /tmp/hadoop-service-startup.log
STARTING NAMENODE
WARNING: HADOOP_NAMENODE_OPTS has been replaced by HDFS_NAMENODE_OPTS. Using value of HADOOP_NAMENODE_OPTS.
WARNING: /var/log/hadoop does not exist. Creating.
mkdir: cannot create directory ‘/var/log/hadoop’: Permission denied
ERROR: Unable to create /var/log/hadoop. Aborting.
COMPLETE
STARTING SECONDARY NAMENODE
WARNING: HADOOP_SECONDARYNAMENODE_OPTS has been replaced by HDFS_SECONDARYNAMENODE_OPTS. Using value of HADOOP_SECONDARYNAMENODE_OPTS.
WARNING: /var/log/hadoop does not exist. Creating.
mkdir: cannot create directory ‘/var/log/hadoop’: Permission denied
ERROR: Unable to create /var/log/hadoop. Aborting.
COMPLETE
STARTING DATANODE
WARNING: HADOOP_DATANODE_OPTS has been replaced by HDFS_DATANODE_OPTS. Using value of HADOOP_DATANODE_OPTS.
WARNING: /var/log/hadoop does not exist. Creating.
mkdir: cannot create directory ‘/var/log/hadoop’: Permission denied
ERROR: Unable to create /var/log/hadoop. Aborting.
COMPLETE
STARTED DAEMONS
4884 Jps
STARTING RESOURCEMANGER
WARNING: /var/log/hadoop does not exist. Creating.
mkdir: cannot create directory ‘/var/log/hadoop’: Permission denied
ERROR: Unable to create /var/log/hadoop. Aborting.
COMPLETE
STARTING NODEMANGER
WARNING: /var/log/hadoop does not exist. Creating.
mkdir: cannot create directory ‘/var/log/hadoop’: Permission denied
ERROR: Unable to create /var/log/hadoop. Aborting.
COMPLETE
STARTING HISTORYSERVER
WARNING: /var/log/hadoop does not exist. Creating.
mkdir: cannot create directory ‘/var/log/hadoop’: Permission denied
ERROR: Unable to create /var/log/hadoop. Aborting.
COMPLETE
STARTED DAEMONS
5012 Jps

Answer 1

您可能遇到权限问题。尝试执行以下操作更改权限

  sudo chown -R hadoop /var/log/hadoop/

如果你不起作用，你可以尝试通过将 Hadoop 日志的位置更改到其他位置来解决它