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Added attention to online parameter changes #4607

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Merged
merged 5 commits into from
Apr 22, 2021
Merged

Added attention to online parameter changes #4607

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Update dynamic-config.md
Joyinqin Jan 13, 2021
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Joyinqin Jan 13, 2021
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Joyinqin Jan 13, 2021
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Joyinqin Apr 22, 2021
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18 changes: 11 additions & 7 deletions dynamic-config.md
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Expand Up @@ -65,18 +65,22 @@ When using the `set config` statement, you can modify the configuration of a sin

- Modify the configuration of all TiKV instances:

{{< copyable "sql" >}}
> **Note:**
>
> It is recommended to wrap variable names in backticks.

```sql
set config tikv split.qps-threshold=1000
```
{{< copyable "sql" >}}

```sql
set config tikv `split.qps-threshold`=1000
```

- Modify the configuration of a single TiKV instance:

{{< copyable "sql" >}}

```sql
set config "127.0.0.1:20180" split.qps-threshold=1000
set config "127.0.0.1:20180" `split.qps-threshold`=1000
```

If the modification is successful, `Query OK` is returned:
Expand All @@ -90,7 +94,7 @@ If an error occurs during the batch modification, a warning is returned:
{{< copyable "sql" >}}

```sql
set config tikv log-level='warn';
set config `tikv log-level`='warn';
```

```sql
Expand Down Expand Up @@ -212,7 +216,7 @@ You can modify the PD configurations using the following statement:
{{< copyable "sql" >}}

```sql
set config pd log.level='info'
set config pd `log.level`='info'
```

If the modification is successful, `Query OK` is returned:
Expand Down