URL: http://<db.host>:<hm.port>/admin/remove/host
Removes a host from an existing cluster. If the host to be removed has any ranks running on it, the ranks must be removed using /admin/remove/ranks or manually switched over to a new host using /admin/switchover prior to host removal. If the host to be removed has the graph server or SQL planner running on it, these must be manually switched over to a new host using /admin/switchover.
NOTE: This endpoint is serviced by the host manager, not the database cluster itself, so the port specified needs to be the host manager port instead. The default host manager port can be found under Default Ports. For more information on the host manager, see Host Manager.
NOTE: This endpoint should be used for on-premise deployments only.
Input Parameter Description
| Name | Type | Description | ||||
|---|---|---|---|---|---|---|
| host | string | Identifies the host this applies to. Can be the host address, or formatted as 'hostN' where N is the host number as specified in gpudb.conf | ||||
| options | map of string to strings | Optional parameters. The default value is an empty map ( {} ).
|
Output Parameter Description
The GPUdb server embeds the endpoint response inside a standard response structure which contains status information and the actual response to the query. Here is a description of the various fields of the wrapper:
| Name | Type | Description | ||||||
|---|---|---|---|---|---|---|---|---|
| status | String | 'OK' or 'ERROR' | ||||||
| message | String | Empty if success or an error message | ||||||
| data_type | String | 'admin_remove_host_response' or 'none' in case of an error | ||||||
| data | String | Empty string | ||||||
| data_str | JSON or String | This embedded JSON represents the result of the /admin/remove/host endpoint:
Empty string in case of an error. |
