Help Center/ MapReduce Service/ User Guide/ MRS Cluster O&M/ Common Ports for MRS Cluster Services

Updated on 2025-08-09 GMT+08:00

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Common Ports for MRS Cluster Services

This section describes the common ports of each component in an MRS cluster. If the cluster version type is LTS during cluster creation in custom config mode as described in Buying a Custom MRS Cluster, you can determine whether to keep the default ports of the components consistent with those of the open-source components.

Figure 1 Selecting a component port policy for an LTS cluster in custom config mode

If Component Port is set to Open source or Version Type is set to Normal, find the default component ports in the Default Open Source Port column of the following table.
If Component Port is set to Custom, find the default component ports in the Default Custom Port column of the following table.
If there is only the Default Port column, the open-source ports of the component are the same as the default custom ports.
The value range of each component port is a recommended value, defined by the product. However, the system does not enforce strict limitations on port ranges.

Common HBase Ports

The protocol type of all ports in the table is TCP.

Parameter	Default Open Source Port	Default Custom Port	Port Description
hbase.master.port	16000	21300	HMaster RPC port, which is used to connect the HBase client to HMaster. Is the port enabled by default during the installation: Yes Is the port enabled after security hardening: Yes
hbase.master.info.port	16010	21301	HMaster HTTPS port, which is used by the remote web client to connect to the HMaster UI. Is the port enabled by default during the installation: Yes Is the port enabled after security hardening: Yes
hbase.regionserver.port	16020	21302	RegionServer (RS) RPC port, which is used to connect the HBase client to RegionServer. Is the port enabled by default during the installation: Yes Is the port enabled after security hardening: Yes
hbase.regionserver.info.port	16030	21303	RegionServer HTTPS port, which is used by the remote web client to connect to the RegionServer UI. Is the port enabled by default during the installation: Yes Is the port enabled after security hardening: Yes
hbase.thrift.info.port	9095	21304	Thrift server listening port of ThriftServer. This port is used by client connections. Is the port enabled by default during the installation: Yes Is the port enabled after security hardening: Yes
hbase.regionserver.thrift.port	9090	21305	Thrift server listening port of RegionServer. This port is used by clients to connect to RegionServer. Is the port enabled by default during the installation: Yes Is the port enabled after security hardening: Yes
hbase.rest.info.port	8085	21308	Port of the native web UI of RegionServer RESTServer.
-	21309	21309	REST port of RegionServer RESTServer.

Common HDFS Ports

The protocol type of all ports in the table is TCP.

Parameter	Default Open Source Port	Default Custom Port	Port Description
dfs.namenode.rpc.port	9820 (versions earlier than MRS 3.x) 8020 (MRS 3.x or later)	25000	NameNode RPC port, which is used for communication between the HDFS client and NameNode and connections between different DataNodes. Is the port enabled by default during the installation: Yes Is the port enabled after security hardening: Yes
dfs.namenode.http.port	9870	25002	HTTP access port of NameNode. This port is used for the point-to-point NameNode checkpoint operations and for the remote web client to connect to the NameNode UI. Is the port enabled by default during the installation: Yes Is the port enabled after security hardening: Yes
dfs.namenode.https.port	9871	25003	HTTPS access port of NameNode. This port is used for the point-to-point NameNode checkpoint operations and for the remote web client to connect to the NameNode UI. Is the port enabled by default during the installation: Yes Is the port enabled after security hardening: Yes
dfs.datanode.ipc.port	9867	25008	Port for communication between DataNode processes. This port is used by clients to connect to DataNodes to perform RPC operations. Is the port enabled by default during the installation: Yes Is the port enabled after security hardening: Yes
dfs.datanode.port	9866	25009	DataNode data transmission port. This port is used by the HDFS client to transfer data from or to DataNode. Is the port enabled by default during the installation: Yes Is the port enabled after security hardening: Yes
dfs.datanode.http.port	9864	25010	DataNode HTTP port, which is used to remotely connect to the DataNode UI through a web client in secure mode. Is the port enabled by default during the installation: Yes Is the port enabled after security hardening: Yes
dfs.datanode.https.port	9865	25011	DataNode HTTPS port, which is used to remotely connect to the DataNode UI through a web client in secure mode. Is the port enabled by default during the installation: Yes Is the port enabled after security hardening: Yes
dfs.JournalNode.rpc.port	8485	25012	JournalNode RPC port, which is used for client communication. Is the port enabled by default during the installation: Yes Is the port enabled after security hardening: Yes
dfs.journalnode.http.port	8480	25013	JournalNode HTTP port, which is used to remotely connect to JournalNode through a web client in secure mode. Is the port enabled by default during the installation: Yes Is the port enabled after security hardening: Yes
dfs.journalnode.https.port	8481	25014	JournalNode HTTPS port, which is used to remotely connect to JournalNode through a web client in secure mode. Is the port enabled by default during the installation: Yes Is the port enabled after security hardening: Yes
httpfs.http.port	14000	25018	HttpFS HTTP server listening port, which is used to remotely connect to HttpFS through a REST API. Is the port enabled by default during the installation: Yes Is the port enabled after security hardening: Yes

Common HetuEngine Ports

The protocol type of all ports in the table is TCP.

Parameter	Default Open Source Port	Default Custom Port	Port Description
server.port (HSBroker)	29860	29860	Specifies the port number that HSBroker listens to.
server.port (HSConsole)	29880	29880	Specifies the port number that HSConsole listens to.
server.port (HSFabric)	29900	29900	Specifies the port number that HSFabric listens to, which is used for cross-domain connections.
gateway.port	29902	29902	Specifies the port number that HSFabric listens to, which is used for JDBC connections.

Common Hive Ports

The protocol type of all ports in the table is TCP.

Parameter	Default Open Source Port	Default Custom Port	Port Description
templeton.port	9111	21055	Port used for WebHCat to provide the REST service. This port is used for the communication between the WebHCat server and the WebHCat client. Is the port enabled by default during the installation: Yes Is the port enabled after security hardening: Yes
hive.server2.thrift.port	10000	21066	Port for HiveServer to provide Thrift services. This port is used for the communication between the HiveServer server and the HiveServer client. Is the port enabled by default during the installation: Yes Is the port enabled after security hardening: Yes
hive.metastore.port	9083	21088	Port for MetaStore to provide Thrift services. This port is used for communication between the Metastore client and Metastore, that is, communication between HiveServer and Metastore. Is the port enabled by default during the installation: Yes Is the port enabled after security hardening: Yes
hive.server2.webui.port	10002	-	Hive Web UI port, which is used to communicate with the Hive UI server using HTTPS/HTTP.

Common Hue Ports

The protocol type of all ports in the table is TCP.

Parameter	Default Open Source Port	Default Custom Port	Port Description
HTTP_PORT	8888	21200	Port for Hue to provide HTTPS services This port is used to provide web services over HTTPS, which can be changed. Is the port enabled by default during the installation: Yes Is the port enabled after security hardening: Yes

Parameter

Default Open Source Port

Default Custom Port

Port Description

HTTP_PORT

8888

21200

Port for Hue to provide HTTPS services

This port is used to provide web services over HTTPS, which can be changed.

Is the port enabled by default during the installation: Yes
Is the port enabled after security hardening: Yes

Common Kafka Ports

The protocol type of all ports in the table is TCP.

Parameter	Default Open Source Port	Default Custom Port	Port Description
port	9092	21005	Port for a broker to receive data and obtain services
ssl.port	9093	21008	SSL port used by a broker to receive data and obtain services
sasl.port	21007	21007	SASL security authentication port provided by a broker, which provides the secure Kafka service
sasl-ssl.port	21009	21009	Port used by a broker to provide encrypted service based on the SASL and SSL protocols

Common Loader Ports

The protocol type of all ports in the table is TCP.

Parameter	Default Port	Port Description
LOADER_HTTPS_PORT	21351	This port is used to provide REST APIs for configuration and running of Loader jobs. Is the port enabled by default during the installation: Yes Is the port enabled after security hardening: Yes

Parameter

Default Port

Port Description

LOADER_HTTPS_PORT

21351

This port is used to provide REST APIs for configuration and running of Loader jobs.

Is the port enabled by default during the installation: Yes
Is the port enabled after security hardening: Yes

Common Manager Ports

The protocol type of all ports in the table is TCP.

Parameter	Default Port (Versions Earlier Than MRS 3.x)	Port Description
-	8080	Port provided by WebService for user access This port is used to access the web UI over HTTP. Is the port enabled by default during the installation: Yes Is the port enabled after security hardening: Yes
-	28443	Port provided by WebService for user access This port is used to access the web UI over HTTPS. Is the port enabled by default during the installation: Yes Is the port enabled after security hardening: Yes

Parameter

Default Port

(Versions Earlier Than MRS 3.x)

Port Description

8080

Port provided by WebService for user access

This port is used to access the web UI over HTTP.

Is the port enabled by default during the installation: Yes
Is the port enabled after security hardening: Yes

28443

Port provided by WebService for user access

This port is used to access the web UI over HTTPS.

Is the port enabled by default during the installation: Yes
Is the port enabled after security hardening: Yes

Common MapReduce Ports

The protocol type of all ports in the table is TCP.

Parameter	Default Open Source Port	Default Custom Port	Port Description
mapreduce.jobhistory.webapp.port	19888	26012	Web HTTP port of the JobHistory server This port is used to view the web page of the JobHistory server.
mapreduce.jobhistory.port	10020	26013	Port of the JobHistory server This port is used for: Task data restoration in the MapReduce client Obtaining task report in the Job client
mapreduce.jobhistory.webapp.https.port	19890	26014	Web HTTPS port of the JobHistory server This port is used to view the web page of the JobHistory server.

Parameter

Default Open Source Port

Default Custom Port

Port Description

mapreduce.jobhistory.webapp.port

19888

26012

Web HTTP port of the JobHistory server

This port is used to view the web page of the JobHistory server.

mapreduce.jobhistory.port

10020

26013

Port of the JobHistory server

This port is used for:

Task data restoration in the MapReduce client
Obtaining task report in the Job client

mapreduce.jobhistory.webapp.https.port

19890

26014

Web HTTPS port of the JobHistory server

This port is used to view the web page of the JobHistory server.

Common Spark Ports

The protocol type of all ports in the table is TCP.

Parameter	Default Open Source Port	Default Custom Port	Port Description
hive.server2.thrift.port	22550	22550	JDBC thrift port This port is used for socket communication between the Spark 2.1.0 CLI/JDBC client and server. If hive.server2.thrift.port is used, an exception indicating that the port is occupied is reported. Is the port enabled by default during the installation: Yes Is the port enabled after security hardening: Yes
spark.ui.port	4040	22950	Web UI port of JDBC This port is used for HTTPS/HTTP communication between Web requests and the JDBC Server Web UI server. The system obtains the port based on the parameter settings and checks its validity. If the port is invalid, the system increases the port number by 1 each time for a maximum of 16 times until a valid port is obtained (the retry times can be configured using spark.port.maxRetries). Is the port enabled by default during the installation: Yes Is the port enabled after security hardening: Yes
spark.history.ui.port	18080	22500	JobHistory Web UI port This port is used for HTTPS/HTTP communication between web requests and the Spark 2.1.0 History Server. The system obtains the port based on the parameter settings and checks its validity. If the port is invalid, the system increases the port number by 1 each time for a maximum of 16 times until a valid port is obtained (the retry times can be configured using spark.port.maxRetries). Is the port enabled by default during the installation: Yes Is the port enabled after security hardening: Yes

Parameter

Default Open Source Port

Default Custom Port

Port Description

hive.server2.thrift.port

22550

JDBC thrift port

This port is used for socket communication between the Spark 2.1.0 CLI/JDBC client and server.

If hive.server2.thrift.port is used, an exception indicating that the port is occupied is reported.

Is the port enabled by default during the installation: Yes
Is the port enabled after security hardening: Yes

spark.ui.port

4040

22950

Web UI port of JDBC

This port is used for HTTPS/HTTP communication between Web requests and the JDBC Server Web UI server.

The system obtains the port based on the parameter settings and checks its validity. If the port is invalid, the system increases the port number by 1 each time for a maximum of 16 times until a valid port is obtained (the retry times can be configured using spark.port.maxRetries).

Is the port enabled by default during the installation: Yes
Is the port enabled after security hardening: Yes

spark.history.ui.port

18080

22500

JobHistory Web UI port

This port is used for HTTPS/HTTP communication between web requests and the Spark 2.1.0 History Server.

Is the port enabled by default during the installation: Yes
Is the port enabled after security hardening: Yes

Common Storm Ports

The protocol type of all ports in the table is TCP.

Parameter	Default Open Source Port	Default Custom Port	Port Description
nimbus.thrift.port	6627	29200	Port for Nimbus to provide thrift services
supervisor.slots.ports	6700/6701/6702/6703	29200~29499	Port for receiving service requests that are forwarded from other servers
logviewer.https.port	29248	29248	Port for LogViewer to provide HTTPS services
ui.https.port	29243	29243	Port for the Storm UI to provide HTTPS services

Common YARN Ports

The protocol type of all ports in the table is TCP.

Parameter	Default Open Source Port	Default Custom Port	Port Description
yarn.resourcemanager.webapp.port	8088	26000	Web HTTP port of the ResourceManager service
yarn.resourcemanager.webapp.https.port	8090	26001	Web HTTPS port of the ResourceManager service This port is used to access the Resource Manager web applications in security mode. Is the port enabled by default during the installation: Yes Is the port enabled after security hardening: Yes
yarn.nodemanager.webapp.port	8042	26006	NodeManager Web HTTP port
yarn.nodemanager.webapp.https.port	8044	26010	NodeManager Web HTTPS port This port is used to access the NodeManager web applications in security mode. Is the port enabled by default during the installation: Yes Is the port enabled after security hardening: Yes

Common ZooKeeper Ports

The protocol type of all ports in the table is TCP.

Parameter	Default Open Source Port	Default Custom Port	Port Description
clientPort	2181	24002	ZooKeeper client port This port is used for communication between the ZooKeeper client and ZooKeeper server. Is the port enabled by default during the installation: Yes Is the port enabled after security hardening: Yes

Parameter

Default Open Source Port

Default Custom Port

Port Description

clientPort

2181

24002

ZooKeeper client port

This port is used for communication between the ZooKeeper client and ZooKeeper server.

Is the port enabled by default during the installation: Yes
Is the port enabled after security hardening: Yes

Common Kerberos Ports

The protocol type of all ports in the table is TCP and UDP.

Parameter	Default Port	Port Description
KADMIN_PORT	21730	Port for managing Kerberos users.
KPASSWD_PORT	21731	Port for changing the Kerberos password.
kdc_ports	21732	Kerberos server port. This port is used by components for Kerberos authentication. This port may be used when you configure mutual trust between clusters.

Common OpenTSDB Ports

The protocol type of all ports in the table is TCP.

Parameter	Default Port	Port Description
tsd.network.port	4242	Web UI port of OpenTSDB This port is used for HTTPS/HTTP communication between web requests and the OpenTSDB UI server.

Parameter

Default Port

Port Description

tsd.network.port

4242

Web UI port of OpenTSDB

This port is used for HTTPS/HTTP communication between web requests and the OpenTSDB UI server.

Common Tez Ports

The protocol type of all ports in the table is TCP.

Parameter	Default Port	Port Description
tez.ui.port	28888	Web UI port of Tez

Common KafkaManager Ports

The protocol type of all ports in the table is TCP.

Parameter	Default Port	Port Description
kafka_manager_port	9099	Web UI port of KafkaManager

Common Presto Ports

The protocol type of all ports in the table is TCP.

Parameter	Default Port	Port Description
http-server.http.port	7520	HTTP port for Presto coordinator to provide services to external systems
http-server.https.port	7521	HTTPS port for Presto coordinator to provide services to external systems
http-server.http.port	7530	HTTP port for Presto worker to provide services to external systems
http-server.https.port	7531	HTTPS port for Presto worker to provide services to external systems

Common Flink Ports

The protocol type of all ports in the table is TCP.

Parameter	Default Port	Port Description
jobmanager.web.port	32261~32325	Web UI port of Flink This port is used for HTTP/HTTPS communication between the client web requests and Flink server.

Parameter

Default Port

Port Description

jobmanager.web.port

32261~32325

Web UI port of Flink

This port is used for HTTP/HTTPS communication between the client web requests and Flink server.

Common ClickHouse Ports

The protocol type of the port in the table is TCP and HTTP.

Parameter	Default Open Source Port	Default Custom Port	Port Description
interserver_http_port	9009	9009	HTTP port for the communication between ClickHouse servers.
interserver_https_port	9010	9010	HTTPS port for the communication between ClickHouse servers.
http_port	8123	8123	Port for connecting to the ClickHouse server through HTTP.
https_port	8443	8443	Port for connecting to the ClickHouse server through HTTPS.
tcp_port	9000	9000	Port for connecting the client to the ClickHouse server through TCP.
tcp_port_secure	9440	9440	Port for connecting the client to the ClickHouse server through TCP SSL.
lb_tcp_port	21424	21424	TCP communication port number for ClickHouseBalancer.
lb_http_port	21425	21425	HTTP communication port number for ClickHouseBalancer.
lb_https_port	21426	21426	HTTPS communication port number for ClickHouseBalancer.
lb_tcp_secure_port	21428	21428	TCP SSL communication port number for ClickHouseBalancer.

Common Impala Ports

The protocol type of all ports in the table is TCP.

Parameter	Default Open Source Port	Default Custom Port	Port Description
--beeswax_port	21000	21970	Port for impala-shell communication
--hs2_port	21050	21971	Port for Impala application communication
--hs2_http_port	28000	21981	Port used by Impala to provide the HiveServer2 protocol for external systems

Common Doris Ports

The protocol type of the port in the table is TCP and HTTP.

Parameter	Default Open Source Port	Default Custom Port	Port Description
http_port	8030	29980	HTTP port of the FE service
https_port	8050	29991	HTTPS port of the FE service
query_port	9030	29982	Port used by the Doris FE to query connections through the MySQL protocol
rpc_port	9020	29981	Thrift Server port of the FE service
be_port	9060	29984	Thrift Server Port on BE for receiving requests from FE
brpc_port	8060	29987	BRPC port on BE, which is used for communications between BE instances.
heartbeat_service_port	9050	29985	Thrift heartbeat service port on BE, which is used to receive heartbeat messages from FE
webserver_port	8040	29986	HTTP server port on BE
broker_ipc_port	8000	29990	Thrift Server communication port on Broker, which is used to receive requests.
single_replica_load_brpc_port	9070	29988	RPC port used for the communication between the master and slave replicas to import single-replica data
single_replica_load_download_port	8050	29989	Port used by the slave replica to download data files from the master replica through HTTP for single-copy data import

Common Guardian Ports

The protocol type of the port in the table is TCP and HTTP.

Parameter	Default Open Source Port	Default Custom Port	Port Description
ranger.obs.service.rpc.address.port	26901	26901	The RPC listening port for the Guardian OBS client service.
token.server.http-server.port	26900	26900	HTTP listening port of the Guardian service.
token.server.rpc.address.port	26902	26902	The RPC listening port of the Guardian service.

Common Kudu Ports

The protocol type of the port in the table is TCP and HTTP.

Parameter	Default Open Source Port	Default Custom Port	Port Description
rpc_bind_addresses	7051	7051	Default RPC port of the Kudu Master. All requests from Tablet Server and clients (such as Impala and Spark) interact with the Master through this port.
webserver_port	8051	8051	Web UI port of the Kudu Master. You can access http://<master_host>:8051 using a browser to view the Master status and monitoring information.
rpc_bind_addresses	7050	7050	Default RPC port of the Kudu Tablet Server. This port is used for receiving client requests, coordinating with the Master, and communication between Tablet Servers.
webserver_port	8050	8050	Web UI port of the Kudu Tablet Server. You can access http://<tserver_host>:8050 using a browser to view the Tablet Server status and monitoring information.