2017-12-28 15:13:23 +00:00
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<a name="settings"></a>
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# Settings
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There are multiple ways to make all the settings described below.
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Settings are configured in layers, so each subsequent layer redefines the previous settings.
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Ways to configure settings, in order of priority:
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2018-09-04 11:18:59 +00:00
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- Settings in the `users.xml` server configuration file.
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2017-12-28 15:13:23 +00:00
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2018-09-04 11:18:59 +00:00
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Set in the element `<profiles>`.
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2017-12-28 15:13:23 +00:00
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2018-03-25 02:04:22 +00:00
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- Session settings.
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2017-12-28 15:13:23 +00:00
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2018-09-04 11:18:59 +00:00
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Send ` SET setting=value` from the ClickHouse console client in interactive mode.
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2017-12-28 15:13:23 +00:00
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Similarly, you can use ClickHouse sessions in the HTTP protocol. To do this, you need to specify the `session_id` HTTP parameter.
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2018-09-04 11:18:59 +00:00
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- Query settings.
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- When starting the ClickHouse console client in non-interactive mode, set the startup parameter `--setting=value`.
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- When using the HTTP API, pass CGI parameters (`URL?setting_1=value&setting_2=value...`).
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2017-12-28 15:13:23 +00:00
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Settings that can only be made in the server config file are not covered in this section.
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2018-09-04 11:18:59 +00:00
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2018-10-16 10:47:17 +00:00
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[Original article](https://clickhouse.yandex/docs/en/operations/settings/) <!--hide-->
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