Ports Used by DistCp

DistCp uses various ports for HDFS and HttpFS services.

All ports listed are TCP.

In the following table, the Access Requirement column for each port is usually either "Internal" or "External." In this context, "Internal" means that the port is used only for communication among the components; "External" means that the port can be used for either internal or external communication.


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		9870 or 9871	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