HDFS                   Port             Config Parameter

—— Namenode     50070          dfs.http.address

Datanodes      50075         dfs.datanode.http.address

Secondary NameNode 50090 dfs.secondary.http.address

Backup/Checkpoint node 50105 dfs.backup.http.address

Mapreduce  Port Config Parameter ——— JobTracker 50030 mapred.job.tracker.http.address

Tasktrackers       50060       mapred.task.tracker.http.address