The SHOW CLUSTER SETTING statement displays the values of cluster settings.
To configure cluster settings, use SET CLUSTER SETTING.
The SHOW statement for cluster settings is unrelated to the other SHOW statements: SHOW (session variable), SHOW CREATE, SHOW USERS, SHOW DATABASES, SHOW COLUMNS, SHOW GRANTS, and SHOW CONSTRAINTS.
Details
To display the value of a specific cluster setting, use the following syntax:
SHOW CLUSTER SETTING <setting>;To display the values of public cluster settings (i.e., cluster settings that are documented and for which tuning is supported), use one of the following:
SHOW CLUSTER SETTINGS;SHOW PUBLIC CLUSTER SETTINGS;New in v20.1: To display the values of all cluster settings use one of the following:
SHOW ALL CLUSTER SETTINGS;SHOW CLUSTER SETTING ALL;When you display all cluster settings, the table output includes a
publiccolumn that denotes whether a setting is public or not.
Required privileges
Only members of the admin role can display cluster settings. By default, the root user belongs to the admin role.
Synopsis
Parameters
| Parameter | Description |
|---|---|
var_name |
The name of the cluster setting (case-insensitive). |
ALL |
Display all cluster settings. |
PUBLIC |
Display only the public cluster settings. By default, only public settings are listed by SHOW CLUSTER SETTINGS. SHOW PUBLIC CLUSTER SETTINGS and SHOW CLUSTER SETTINGS are equivalent. |
Response
When you query multiple cluster settings (e.g., with SHOW CLUSTER SETTINGS, or with SHOW ALL CLUSTER SETTINGS), the following fields are returned:
| Field | Description |
|---|---|
variable |
The name of the cluster setting. |
value |
The value of the cluster setting. |
setting_type |
The type of the cluster setting. Possible values for setting_type include:
|
description |
A brief description of the cluster setting, including possible values. |
public |
true if the cluster setting is public.This field is only included only if all cluster settings are displayed. |
Examples
Show the value of a single cluster setting
> SHOW CLUSTER SETTING diagnostics.reporting.enabled;
diagnostics.reporting.enabled
---------------------------------
true
(1 row)
Show the values of all public cluster settings
> SHOW CLUSTER SETTINGS;
variable | value | setting_type | description
------------------------------------+----------------+--------------+-------------------------------------------------------------------------------------------------------------------
cloudstorage.gs.default.key | | s | if set, JSON key to use during Google Cloud Storage operations
cloudstorage.http.custom_ca | | s | custom root CA (appended to system's default CAs) for verifying certificates when interacting with HTTPS storage
cloudstorage.timeout | 10m0s | d | the timeout for import/export storage operations
...
Show the values of all cluster settings
> SHOW ALL CLUSTER SETTINGS;
variable | value | setting_type | public | description
----------------------------------------+----------------+--------------+--------+-------------------------------------------------------------------------------------------------------------------
changefeed.experimental_poll_interval | 1s | d | false | polling interval for the table descriptors
cloudstorage.gs.default.key | | s | true | if set, JSON key to use during Google Cloud Storage operations
cloudstorage.http.custom_ca | | s | true | custom root CA (appended to system's default CAs) for verifying certificates when interacting with HTTPS storage
cloudstorage.timeout | 10m0s | d | true | the timeout for import/export storage operations
...
