/clusters/{clusterName}/services/{serviceName}/commands/impalaEnableLlamaHa
Mount Point: /api/v16/clusters/{clusterName}/services/{serviceName}/commands/impalaEnableLlamaHa
POST
Enable high availability (HA) for an Impala Llama ApplicationMaster.
This command only applies to CDH 5.1+ Impala services.
The command will create a new Llama role on the specified host, and then create an active/standby pair with the existing Llama role. Autofailover will be enabled using ZooKeeper.
If an optional role name is supplied, the new Llama role will be named accordingly; otherwise, a role name will be automatically generated.
As part of enabling HA, any services that depend on the Impala service being modified will be stopped. The command will redeploy the client configurations for services of the cluster after HA has been enabled.
Available since API v8.
Parameters
| name | description | type | default |
|---|---|---|---|
| serviceName | The Impala service name. | path | |
| clusterName | (no documentation provided) | path |
Request Body
| element: | enableLlamaHaArgs |
Arguments for the command.
Response Body
| element: | command |
Information about the submitted command.