刚刚安装的elasticsearch启动报错
查看日志/var/log/message
Sep 27 11:13:17 local-nginx elasticsearch: Exception in thread "main" org.elasticsearch.bootstrap.BootstrapException: org.elasticsearch.cli.UserException: unable to create temporary keystore at [/etc/elasticsearch/elasticsearch.keystore.tmp], please check filesystem permissions
原因：第一次启动需要创建keystore文件，但是配置文件路径/etc/elasticsearch/ 没有权限
设置权限
chown -R elasticsearch:elasticsearch /etc/elasticsearch/
再重启即可
systemctl restart elasticsearch
PS：之前安装elasticsearch无需手动设置该权限