This page summarizes the default ports used by Hadoop services. It is useful when configuring network interfaces in a cluster.
Hadoop 3.1.0
HDFS
The secondary namenode http/https server address and port.
| Service | Servers | Default Ports Used | Protocol | Configuration Parameter | Comments |
|---|---|---|---|---|---|
| WebUI for NameNode | Master (incl. back-up NameNodes) | 9870/9871 | http/https | dfs.namenode.http-address dfs.namenode.https-address |
The address and the base port where the dfs namenode web ui will listen on. The namenode secure http server address and port. |
| Metadata service (NameNode) | Master (incl. back-up NameNodes) | IPC | fs.defaultFS | The name of the default file system. For example, hdfs://hdp-master:19000 |
|
| Data Node | All slave nodes | 9864/9865 | http/https | dfs.datanode.http.address dfs.datanode.https.address |
The secondary namenode http/https server address and port. |
| Data Node | All slave nodes | 9866 | dfs.datanode.address | The datanode server address and port for data transfer. | |
| Data Node | All slave nodes | 9867 | IPC | dfs.datanode.ipc.address | The datanode ipc server address and port (for metadata operations). |
| Secondary NameNode | Secondary NameNode and any backup NameNodes | 9868/9869 | http/https | dfs.namenode.secondary.http-address fs.namenode.secondary.https-address |
|
| JournalNode | 8485 | IPC | dfs.journalnode.rpc-address | The JournalNode RPC server address and port. | |
| JournalNode | 8480/8481 | http/https | dfs.journalnode.http-address dfs.journalnode.https-address |
The address and port the JournalNode http/https server listens on. | |
| Aliasmap Server | NameNode | 50200 | dfs.provided.aliasmap.inmemory.dnrpc-address | The address where the aliasmap server will be running |
MapReduce
| Service | Servers | Default Ports Used | Protocol | Configuration Parameter | Comments |
|---|---|---|---|---|---|
| MapReduce Job History | 10020 | mapreduce.jobhistory.address | MapReduce JobHistory Server IPC host:port | ||
| MapReduce Job History UI | 19888/19890 | http/https | mapreduce.jobhistory.webapp.address mapreduce.jobhistory.webapp.https.address |
MapReduce JobHistory Server Web UI URL (http/https) | |
| History server admin | 10033 | IPC | mapreduce.jobhistory.admin.address | The address of the History server admin interface. |
YARN
| Service | Servers | Default Ports Used | Protocol | Configuration Parameter | Comments |
|---|---|---|---|---|---|
| 8032 | IPC | yarn.resourcemanager.address | The address of the applications manager interface in the RM. | ||
| 8030 | IPC | yarn.resourcemanager.scheduler.address | The address of the scheduler interface. | ||
| 8088/8090 | http/https | yarn.resourcemanager.webapp.address yarn.resourcemanager.webapp.https.address |
The http/https address of the RM web application. | ||
| 8031 | yarn.resourcemanager.resource-tracker.address | ||||
| 8033 | yarn.resourcemanager.admin.address | The address of the RM admin interface. | |||
| 0 | yarn.nodemanager.address | The address of the container manager in the NM. | |||
| 8040 | yarn.nodemanager.localizer.address | Address where the localizer IPC is. | |||
| 8048 | yarn.nodemanager.collector-service.address | Address where the collector service IPC is. | |||
| 8042/8044 | http/https | yarn.nodemanager.webapp.address yarn.nodemanager.webapp.https.address |
The http/https address of the NM web application. | ||
| 10200 | yarn.timeline-service.address | This is default address for the timeline server to start the RPC server. |
|||
| 8188/8190 | yarn.timeline-service.webapp.address yarn.timeline-service.webapp.https.address |
The http/https address of the timeline service web application. | |||
| 8047 | yarn.sharedcache.admin.address | The address of the admin interface in the SCM (shared cache manager) | |||
| 8788 | yarn.sharedcache.webapp.address | The address of the web application in the SCM (shared cache manager) | |||
| 8046 | yarn.sharedcache.uploader.server.address | The address of the node manager interface in the SCM (shared cache manager) |
|||
| 8045 | yarn.sharedcache.client-server.address | The address of the client interface in the SCM (shared cache manager) |
|||
| 8049 | yarn.nodemanager.amrmproxy.address | The address of the AMRMProxyService listener. | |||
| 8089/8091 | yarn.router.webapp.address yarn.router.webapp.https.address |
The http/https address of the Router web application. | |||
References
The following links provide information about all the default configurations for Hadoop v3.1.0.