Ports Used by Impala
Impala uses the TCP ports listed in the following table. Before deploying Impala, ensure these ports are open on each system.
| Component | Service | Port | Access Requirement | Comment |
|---|---|---|---|---|
|
Impala Daemon |
Impala Daemon Frontend Port |
21000 |
External |
Used to transmit commands and receive results by |
|
Impala Daemon |
Impala Daemon Frontend Port |
21050 |
External |
Used to transmit commands and receive results by applications, such as Business Intelligence tools, using JDBC, the Beeswax query editor in Hue, and some ODBC drivers. |
|
Impala Daemon |
Impala Daemon Backend Port |
22000 |
Internal |
Internal use only. Impala daemons use this port to communicate with each other. |
|
Impala Daemon |
StateStoreSubscriber Service Port |
23000 |
Internal |
Internal use only. Impala daemons listen on this port for updates from the statestore daemon. |
|
Catalog Daemon |
StateStoreSubscriber Service Port |
23020 |
Internal |
Internal use only. The catalog daemon listens on this port for updates from the statestore daemon. |
|
Impala Daemon |
Impala Daemon HTTP Server Port |
25000 |
External |
Impala web interface for administrators to monitor and troubleshoot. |
|
Impala StateStore Daemon |
StateStore HTTP Server Port |
25010 |
External |
StateStore web interface for administrators to monitor and troubleshoot. |
|
Impala Catalog Daemon |
Catalog HTTP Server Port |
25020 |
External |
Catalog service web interface for administrators to monitor and troubleshoot. New in Impala 1.2 and higher. |
|
Impala StateStore Daemon |
StateStore Service Port |
24000 |
Internal |
Internal use only. The statestore daemon listens on this port for registration/unregistration requests. |
|
Impala Catalog Daemon |
StateStore Service Port |
26000 |
Internal |
Internal use only. The catalog service uses this port to communicate with the Impala daemons. New in Impala 1.2 and higher. |
|
Impala Daemon |
Llama Callback Port |
28000 |
Internal |
Internal use only. Impala daemons use to communicate with Llama. New in Impala 1.3 and higher. |
|
Impala Llama ApplicationMaster |
Llama Thrift Admin Port |
15002 |
Internal |
Internal use only. New in Impala 1.3 and higher. |
|
Impala Llama ApplicationMaster |
Llama Thrift Port |
15000 |
Internal |
Internal use only. New in Impala 1.3 and higher. |
|
Impala Llama ApplicationMaster |
Llama HTTP Port |
15001 |
External |
Llama service web interface for administrators to monitor and troubleshoot. New in Impala 1.3 and higher. |