Cloudera Docs

Ports Used by Cloudera Manager

The diagrams and tables below provide an overview of some of the ports used by Cloudera Manager and Cloudera Management Service roles.

Figure 1. Ports Used by Cloudera Manager


When peer-to-peer distribution is enabled for parcels, the Cloudera Manager Agent can obtain the parcel from the Cloudera Manager Server or from other agents, as follows:

Figure 2. Ports Used in Peer-to-Peer Parcel Distribution


For further details, see the following tables. All ports listed are TCP.

In the following tables, 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.

Table 1. External Ports
Component Service Port Configuration Description
Cloudera Manager Server HTTP (Web UI) 7180 Administration > Settings > Category > Ports and Addresses > HTTP Port for Admin Console HTTP port used by the web console.
HTTPS (Web UI) 7183 Administration > Settings > Category > Ports and Addresses > HTTPS Port for Admin Console Port used by the web console if HTTPS is enabled. If enabled, port 7180 remains open, but redirects all requests to HTTPS on port 7183.
Cloudera  Manager Agent  HTTP (Debug) 9000 /etc/cloudera-scm-agent/config.ini
Backup and Disaster Recovery HTTP (Web UI) 7180 Administration > Settings > Category > Ports and Addresses > HTTP Port for Admin Console Used for communication to peer (source) Cloudera Manager.
HTTPS (Web UI) 7183 Administration > Settings > Category > Ports and Addresses > HTTPS Port for Admin Console Used for communication to peer (source) Cloudera Manager when HTTPS is enabled.
HDFS NameNode 8020 HDFS service > Configuration > Category > Ports and Addresses > NameNode Port HDFS and Hive/Impala replication: communication from destination HDFS and MapReduce hosts to source HDFS NameNode(s). Hive/Impala Replication: communication from source Hive hosts to destination HDFS NameNode(s).
HDFS DataNode 9866 HDFS service > Configuration > Category > Ports and Addresses > DataNode Transceiver Port HDFS and Hive/Impala replication: communication from destination HDFS and MapReduce hosts to source HDFS DataNode(s). Hive/Impala Replication: communication from source Hive hosts to destination HDFS DataNode(s).
Telemetry Publisher HTTP 10110 Clusters > Cloudera Management Service > Category > Ports and Addresses > Telemetry Publisher Server Port The port where the Telemetry Publisher Server listens for requests
Telemetry Publisher HTTP (Debug) 10111 Clusters > Cloudera Management Service > Category > Ports and Addresses > Telemetry Publisher Web UI Port The port where Telemetry Publisher starts a debug web server. Set to -1 to disable debug server.
Table 2. Internal Ports
Component Service Port Configuration Description
 Cloudera Manager Server  Avro (RPC) 7182 Administration > Settings > Category > Ports and Addresses > Agent Port to connect to Server Used for Agent to Server heartbeats
Embedded PostgreSQL  database 7432 The optional embedded PostgreSQL database used for storing configuration information for Cloudera Manager Server.
Peer-to-peer parcel distribution 7190, 7191 Hosts > All Hosts > Configuration > P2P Parcel Distribution Port Used to distribute parcels to cluster hosts during installation and upgrade operations.
Cloudera  Manager Agent  HTTP (Debug) The value set for the listening_port parameter in the /etc/cloudera-scm-agent/config.ini file, plus 1. Not directly configurable.

For example, the default external port is 9000. Therefore the default internal port is 9001.
supervisord 19001

For example, the default internal port is 19001. You can configure the custom port under /etc/cloudera-scm-agent/config.ini by updating supervisord_port.

 This port is used to start the supervisord process.
Event Server  Custom protocol 7184 Cloudera Management Service > Configuration > Category > Ports and Addresses > Event Publish Port Port on which the Event Server listens for the publication of events.
Custom protocol 7185 Cloudera Management Service > Configuration > Category > Ports and Addresses > Event Query Port Port on which the Event Server listens for queries for events.
HTTP (Debug) 8084 Cloudera Management Service > Configuration > Category > Ports and Addresses > Event Server Web UI Port Port for the Event Server's Debug page. Set to -1 to disable debug server.
Alert Publisher Custom protocol 10101 Cloudera Management Service > Configuration > Category > Ports and Addresses > Alerts: Listen Port Port where the Alert Publisher listens for internal API requests.
Service Monitor   HTTP (Debug) 8086 Cloudera Management Service > Configuration > Category > Ports and Addresses > Service Monitor Web UI Port Port for Service Monitor's Debug page. Set to -1 to disable the debug server.
HTTPS (Debug) Cloudera Management Service > Configuration > Category > Ports and Addresses > Service Monitor Web UI HTTPS Port Port for Service Monitor's HTTPS Debug page.
Custom protocol 9997 Cloudera Management Service > Configuration > Category > Ports and Addresses > Service Monitor Listen Port Port where Service Monitor is listening for agent messages.
Internal query API (Avro) 9996 Cloudera Management Service > Configuration > Category > Ports and Addresses > Service Monitor Nozzle Port Port where Service Monitor's query API is exposed.
Activity Monitor   HTTP (Debug) 8087 Cloudera Management Service > Configuration > Category > Ports and Addresses > Activity Monitor Web UI Port Port for Activity Monitor's Debug page. Set to -1 to disable the debug server.
HTTPS (Debug) Cloudera Management Service > Configuration > Category > Ports and Addresses > Activity Monitor Web UI HTTPS Port Port for Activity Monitor's HTTPS Debug page.
Custom protocol 9999 Cloudera Management Service > Configuration > Category > Ports and Addresses > Activity Monitor Listen Port Port where Activity Monitor is listening for agent messages.
Internal query API (Avro) 9998 Cloudera Management Service > Configuration > Category > Ports and Addresses > Activity Monitor Nozzle Port  Port where Activity Monitor's query API is exposed.
Host Monitor   HTTP (Debug) 8091 Cloudera Management Service > Configuration > Category > Ports and Addresses > Host Monitor Web UI Port Port for Host Monitor's Debug page. Set to -1 to disable the debug server.
HTTPS (Debug) 9091 Cloudera Management Service > Configuration > Category > Ports and Addresses > Host Monitor Web UI HTTPS Port Port for Host Monitor's HTTPS Debug page.
Custom protocol 9995 Cloudera Management Service > Configuration > Category > Ports and Addresses > Host Monitor Listen Port Port where Host Monitor is listening for agent messages. 
Internal query API (Avro) 9994 Cloudera Management Service > Configuration > Category > Ports and Addresses > Host Monitor Nozzle Port Port where Host Monitor's query API is exposed.
Reports Manager Queries (Thrift) 5678 Cloudera Management Service > Configuration > Category > Ports and Addresses > Reports Manager Server Port The port where Reports Manager listens for requests. 
HTTP (Debug) 8083 Cloudera Management Service > Configuration > Category > Ports and Addresses > Reports Manager Web UI Port The port where Reports Manager starts a debug web server. Set to -1 to disable debug server.