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modify configuration online: change a name for consistency (#6301) #6358

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Aug 31, 2021
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modify configuration online: change a name for consistency (#6301) #6358

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6 changes: 4 additions & 2 deletions dynamic-config.md
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Expand Up @@ -271,9 +271,11 @@ For detailed parameter description, refer to [PD Configuration File](/pd-configu

### Modify TiDB configuration online

Currently, the method of changing TiDB configuration is different from that of changing TiKV and PD configurations. You can modify TiDB configuration by using [SQL variables](/system-variables.md).
Currently, the method of changing TiDB configuration is different from that of changing TiKV and PD configurations. You can modify TiDB configuration by using [system variables](/system-variables.md).

The following example shows how to modify `slow-threshold` online by using the `tidb_slow_log_threshold` variable. The default value of `slow-threshold` is 200 ms. You can set it to 200 ms by using `tidb_slow_log_threshold`.
The following example shows how to modify `slow-threshold` online by using the `tidb_slow_log_threshold` variable.

The default value of `slow-threshold` is 300 ms. You can set it to 200 ms by using `tidb_slow_log_threshold`.

{{< copyable "sql" >}}

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