Impala service management via ADCM

Eugenia Kuzina

The ADCM UI provides actions to manage the Impala service and its components. For information on how to run service actions, refer to ADH service actions.

The actions available for the Impala service are listed in the table below.

Impala service actions
Action Description

Check

Runs service-specific tests to check the health of the service and its components

Start

Starts the service. When you run this action, the option Apply configs from ADCM is available. If it is set to true, all service configurations defined in ADCM settings will be applied on the service startup. Otherwise, the service starts without applying configurations from ADCM

Stop

Stops the service

Restart

Restarts the service. When you run this action, the option Apply configs from ADCM is available. If it is set to true, all service configurations defined in ADCM settings will be applied during the service restart. Otherwise, the service restarts without applying configurations from ADCM

Remove

Removes the service from the cluster. This action should be used to remove already installed services. Whereas the delete control can be used to remove a non-mapped service (a service which components have not been distributed among cluster hosts)

Impala components also have actions that operate with corresponding daemons. To execute these actions, click the Impala service on the Services cluster tab. Alternatively, click Impala next to the Services diagram on the Overview tab.

The Overview cluster tab with Services diagram
The "Overview" cluster tab with "Services" diagram

The Components tab of the Impala service is displayed. Click the icon actions default dark actions default light in the Action column for a particular component, and select an action from the drop-down list.

Actions of Impala components
Actions of Impala components

The actions available for each component are listed in the tables below.

Impala Daemon actions
Action Description

Add/Remove Daemon(s)

Allows you to remove or add the Impala Daemon component to the cluster hosts. When you run this action, a window with components and hosts is displayed, and you can redistribute the Impala Daemon component among the hosts as described in the Add components article. The Impala Daemon component can be installed on multiple cluster hosts

Check Impala Daemon

Verifies whether all Impala Daemons in the cluster work correctly

Restart Impala Daemon

Restarts all Impala Daemons in the cluster

Start Impala Daemon

Starts all Impala Daemons in the cluster

Stop Impala Daemon

Stops all Impala Daemons in the cluster
Impala Statestore actions
Action Description

Check Impala Statestore

Verifies whether the Impala Statestore daemon works correctly

Move Impala Statestore

Allows you to move the Impala Statestore component from one host to another in the same cluster. When you run this action, a window with components and hosts is displayed, and you can delete the Impala Statestore component from a host and add it to another as described in the Add components article. The Impala Statestore component can only be installed on one host in a cluster

Restart Impala Statestore

Restarts the Impala Statestore daemon

Start Impala Statestore

Starts the Impala Statestore daemon

Stop Impala Statestore

Stops the Impala Statestore daemon
Impala Catalog Service actions
Action Description

Check Impala Catalog

Verifies whether the Impala Catalog daemon works correctly

Move Impala Catalog

Allows you to move the Impala Catalog Service component from one host to another in the same cluster. When you run this action, a window with components and hosts is displayed, and you can delete the Impala Catalog Service component from a host and add it to another as described in the Add components article. The Impala Catalog Service component can only be installed on one host in a cluster

Restart Impala Catalog

Restarts the Impala Catalog Service daemon

Start Impala Catalog

Starts the Impala Catalog Service daemon

Stop Impala Catalog

Stops the Impala Catalog Service daemon
Impala Client actions
Action Description

Add/Remove Client(s)

Allows you to remove or add the Impala Client component to the cluster hosts. When you run this action, a window with components and hosts is displayed, and you can redistribute the Impala Client component among the hosts as described in the Add components article. The Impala Client component can be installed on multiple cluster hosts
Found a mistake? Seleсt text and press Ctrl+Enter to report it