Ports Used by DistCp

All ports listed are TCP.

Component Service Qualifier Port Access Requirement Configuration Comment

Hadoop HDFS

NameNode

 

8020

External

 
fs.default.
name
or 
fs.defaultFS
 
fs.default.
name
is deprecated (but still works)

 

DataNode

Secure

1004

External

 
dfs.datanode.
address

 

 

DataNode

  

50010

External

 
dfs.datanode.
address

 

WebHDFS

NameNode

 

50070

External

 
dfs.http.
address
or 
dfs.namenode.
http-address
 
dfs.http.
address
is deprecated (but still works)

 

DataNode

Secure

1006

External

 
dfs.datanode.http.
address

 

HttpFS

web

 

14000