MapR 5.0 Documentation : Impala Ports

Before you deploy Impala, verify that the TCP ports are open on each system.

Impala uses the following ports:

Component

Service

Port

Type

Description

Impala Daemon

Impala Daemon Frontend Port

21000

External

Impala uses this port to communicate commands and receive results through the impala-shell and the ODBC driver.

Impala Daemon

Impala Daemon Frontend Port

21050

External

Impala uses this port to communicate commands and receive results through applications.

Impala Daemon

Impala Daemon Backend Port

22000

Internal

The Impala daemons use this port to communicate with each other.

Impala Daemon

StateStoreSubscriber Service Port

23000

Internal

The Impala daemons listen for updates from the statestore on this port.

Impala Daemon

Impala Daemon HTTP Server Port

25000

External

The Impala web interface that administrators use for troubleshooting.

Impala Statestore Daemon

StateStore Service Port

24000

Internal

The statestore listens on this port for registration requests.

Impala Statestore Daemon

StateStore HTTP Server Port

25010

External

The statestore web interface that administrators use for troubleshooting.

Impala Catalog DaemonCatalog HTTP Server Port25020 ExternalThe catalog service web interface that administrators use for troubleshooting.
Impala Catalog DaemonCatalog Service Port 26000InternalThe catalog service uses this port to communicate with the Impala daemons.