pub const HDFS_NAME_NODE: &str = "hdfs.name-node";Expand description
HDFS NameNode RPC endpoint(s) as host:port, e.g. hdfs://namenode:8020;
a comma-separated list enables HA failover. Serves authority-less paths
(hdfs:///path) only; a path authority with a port is used as is. A
portless authority (hdfs://ns1/path) must be a nameservice declared in
properties: hdfs.name-node.<nameservice> takes the same list and is
sugar for Hadoop’s dfs.ha.namenodes.<nameservice> and
dfs.namenode.rpc-address.<nameservice>.<id>, which are honored as well
when passed through HDFS_HADOOP_CONF_PREFIX. Unlike Hadoop, an
undeclared one is an error: it is neither resolved from
$HADOOP_CONF_DIR nor dialed on the default port 8020.