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