mirror of
https://github.com/ClickHouse/ClickHouse.git
synced 2024-11-16 20:53:27 +00:00
abae86f7a6
* Doc fix: add spaces where missing
* Doc fixes: rm double spaces
* Doc fixes: edit spaces
* Doc fixes: rm double spaces in /fa
* Revert "Doc fixes: rm double spaces in /fa"
This reverts commit bb879a62ef.
* Doc fix: resolve all problems with double spaces in /fa
* Doc fix: add spaces for readability
* Doc fix: add spaces
* Fix spaces
67 lines
2.4 KiB
Markdown
67 lines
2.4 KiB
Markdown
|
|
# Settings profiles
|
|
|
|
A settings profile is a collection of settings grouped under the same name. Each ClickHouse user has a profile.
|
|
To apply all the settings in a profile, set the `profile` setting.
|
|
|
|
Example:
|
|
|
|
Install the `web` profile.
|
|
|
|
``` sql
|
|
SET profile = 'web'
|
|
```
|
|
|
|
Settings profiles are declared in the user config file. This is usually `users.xml`.
|
|
|
|
Example:
|
|
|
|
```xml
|
|
<!-- Settings profiles -->
|
|
<profiles>
|
|
<!-- Default settings -->
|
|
<default>
|
|
<!-- The maximum number of threads when running a single query. -->
|
|
<max_threads>8</max_threads>
|
|
</default>
|
|
|
|
<!-- Settings for quries from the user interface -->
|
|
<web>
|
|
<max_rows_to_read>1000000000</max_rows_to_read>
|
|
<max_bytes_to_read>100000000000</max_bytes_to_read>
|
|
|
|
<max_rows_to_group_by>1000000</max_rows_to_group_by>
|
|
<group_by_overflow_mode>any</group_by_overflow_mode>
|
|
|
|
<max_rows_to_sort>1000000</max_rows_to_sort>
|
|
<max_bytes_to_sort>1000000000</max_bytes_to_sort>
|
|
|
|
<max_result_rows>100000</max_result_rows>
|
|
<max_result_bytes>100000000</max_result_bytes>
|
|
<result_overflow_mode>break</result_overflow_mode>
|
|
|
|
<max_execution_time>600</max_execution_time>
|
|
<min_execution_speed>1000000</min_execution_speed>
|
|
<timeout_before_checking_execution_speed>15</timeout_before_checking_execution_speed>
|
|
|
|
<max_columns_to_read>25</max_columns_to_read>
|
|
<max_temporary_columns>100</max_temporary_columns>
|
|
<max_temporary_non_const_columns>50</max_temporary_non_const_columns>
|
|
|
|
<max_subquery_depth>2</max_subquery_depth>
|
|
<max_pipeline_depth>25</max_pipeline_depth>
|
|
<max_ast_depth>50</max_ast_depth>
|
|
<max_ast_elements>100</max_ast_elements>
|
|
|
|
<readonly>1</readonly>
|
|
</web>
|
|
</profiles>
|
|
```
|
|
|
|
The example specifies two profiles: `default` and `web`. The `default` profile has a special purpose: it must always be present and is applied when starting the server. In other words, the `default` profile contains default settings. The `web` profile is a regular profile that can be set using the `SET` query or using a URL parameter in an HTTP query.
|
|
|
|
Settings profiles can inherit from each other. To use inheritance, indicate the `profile` setting before the other settings that are listed in the profile.
|
|
|
|
|
|
[Original article](https://clickhouse.yandex/docs/en/operations/settings/settings_profiles/) <!--hide-->
|