Impala service management via ADCM
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.
| 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 |
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 |
Remove |
Removes the service from the cluster.
This action should be used to remove already installed services.
Whereas the |
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 Components tab of the Impala service is displayed. Click the icon 
in the Action column for a particular component, and select an action from the drop-down list.
The actions available for each component are listed in the tables below.
| 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 |
| 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 |
| 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 |
| 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 |