Hadoop 3.3.1 配置Web UI可跨域

core-site.xml

        
        
            hadoop.http.filter.initializers
            org.apache.hadoop.security.HttpCrossOriginFilterInitializer
        
        
            hadoop.http.cross-origin.enabled
            true
        
        
            hadoop.http.cross-origin.allowed-origins
            *
        
        
            hadoop.http.cross-origin.allowed-methods
            GET,POST,HEAD
        
        
            hadoop.http.cross-origin.allowed-headers
            X-Requested-With,Content-Type,Accept,Origin
        
        
            hadoop.http.cross-origin.max-age
            1800
        

参考：https://hadoop.apache.org/docs/current/hadoop-project-dist/hadoop-common/HttpAuthentication.html

文件上传不了，有可能是目录权限问题。为了排除是跨域原因导致文件上传不了：

# 将目录权限修改为公共读写
hdfs dfs -chmod -R 777 /share

试试上传文件，假如上传成功，说明跨域问题解决。