pub const HDFS_HOST: &str = "hdfs.host";Expand description
NameNode host for authority-less paths, as in PyIceberg; paths that carry
an authority ignore it, as they do there. Combined with HDFS_PORT into
Hadoop’s fs.defaultFS. PyIceberg’s hdfs.user and hdfs.kerberos_ticket
have no equivalent: the client reads HADOOP_USER_NAME and the default
Kerberos credential cache.