This is the documentation for Cloudera Manager 4.8.3.
Documentation for other versions is available at Cloudera Documentation.

Ports Used by Cloudera Manager

Component Service Port Protocol Access Requirement Configuration Comment
Cloudera Manager Server HTTP (Web UI) 7180 TCP External Administration > Settings > Ports and Addresses  
  HTTPS (Web UI) 7183 TCP External Used for HTTPS on master, if enabled. HTTP is the default; only one port is open for either HTTP or HTTPS, not both
  Avro (RPC) 7182 TCP Internal   Used for Agent to Server heartbeats
  PostgreSQL database managed by cloudera-scm-server-db service 7432 TCP Internal   This is the optional embedded PostgreSQL database installed by the Cloudera Manager installation program that is used for storing configuration information for Cloudera Manager Server.
Cloudera  Manager Agent HTTP (Debug) 9000 TCP Internal
/etc/cloudera-scm-agent/config.ini
 
  Internal supervisord localhost: 9001 TCP Localhost   supervisord status and control port; used for communication between the agent and supervisord; only open internally (on localhost)
Cloudera Manager Event Server Listen for events and queries. 7184 TCP Internal Cloudera Management Service > Configuration > View and Edit > ServerName (Default) > Ports and Addresses  
  Listen for events and queries. 7185 TCP Internal    
  HTTP (Debug) 8084 TCP Internal   Allows access to debugging and diagnostic information
Cloudera Manager Alert Publisher Internal API 10101 TCP Internal Cloudera Management Service > Configuration > View and Edit > ServerName (Default) > Ports and Addresses  
Cloudera Manager Service Monitor HTTP (Debug) 8086 TCP Internal Cloudera Management Service > Configuration > View and Edit > ServerName (Default) > Ports and Addresses  
  Listening for Agent messages (private protocol) 9997        
  Internal query API (Avro) 9996        
Cloudera Manager Activity Monitor HTTP (Debug) 8087 TCP Internal Cloudera Management Service > Configuration > View and Edit > ServerName (Default) > Ports and Addresses  
  Listening for Agent messages (private protocol) 9999        
  Internal query API (Avro) 9998        
Cloudera Manager Host Monitor HTTP (Debug) 8090 TCP Internal Cloudera Management Service > Configuration > View and Edit > ServerName (Default) > Ports and Addresses  
  Listening for Agent messages (private protocol) 9995        
  Internal query API (Avro) 9994        
Cloudera Manager Reports Manager Queries (Thrift) 5678 TCP Internal Cloudera Management Service > Configuration > View and Edit > ServerName (Default) > Ports and Addresses  
  HTTP (Debug) 8083 TCP Internal    
Cloudera Navigator HTTP (Debug) 8089 TCP Internal Cloudera Management Service > Configuration > View and Edit > ServerName (Default) > Ports and Addresses  
  HTTP 7186 TCP Internal    
Task Tracker Plugin (used for activity monitoring) HTTP (Debug) localhost: 4867 TCP Localhost   Used only on localhost interface by monitoring agent
Backup and Disaster Recovery HTTP (WebUI) 7180 TCP External Administration > Settings > Ports and Addresses Used for communication to peer (source) Cloudera Manager.
  HDFS NameNode 8020 TCP External HDFS > Configuration > View and Edit > NameNode Role Group > Ports and Addresses: NameNode Port HDFS and Hive replication: communication from destination HDFS and MapReduce hosts to source HDFS NameNode(s). Hive Replication: communication from source Hive hosts to destination HDFS NameNode(s).
  HDFS DataNode 50010 TCP External HDFS > Configuration > View and Edit > DataNode Role Group(s) > Ports and Addresses: DataNode Transceiver Port HDFS and Hive replication: communication from destination HDFS and MapReduce hosts to source HDFS DataNode(s). Hive Replication: communication from source Hive hosts to destination HDFS DataNode(s).