private String getInfoServer ( ) throws IOException { URI fsName = FileSystem . getDefaultUri ( conf ) ; if ( ! "hdfs" . equals ( fsName . getScheme ( ) ) ) { throw new IOException ( "This is not a DFS" ) ; } return NetUtils . getServerAddress ( conf , "dfs.info.bindAddress" , "dfs.info.port" , "dfs.http.address" ) ; }
Returns the Jetty server that the Namenode is listening on .