This is the documentation for CDH 5.0.x. Documentation for other versions is available at Cloudera Documentation.

Appendix A - 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-shell`, Beeswax, and version 1.2 of the Cloudera ODBC driver.
Impala Daemon	Impala Daemon Frontend Port	21050	External	Used to transmit commands and receive results by applications, such as Business Intelligence tools, using JDBC and the version 2.0 or higher of the Cloudera ODBC driver.
Impala Daemon	Impala Daemon Backend Port	22000	Internal	Internal use only. Impala daemons use 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 state store.
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. State store 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 CDH 5.0.0 and higher.
Impala Llama ApplicationMaster	Llama Thrift Admin Port	15002	Internal	Internal use only. New in CDH 5.0.0 and higher.
Impala Llama ApplicationMaster	Llama Thrift Port	15000	Internal	Internal use only. New in CDH 5.0.0 and higher.
Impala Llama ApplicationMaster	Llama HTTP Port	15001	External	Llama service web interface for administrators to monitor and troubleshoot. New in CDH 5.0.0 and higher.

Page generated September 3, 2015.