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Update notes for scaling PD nodes #20379

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Feb 27, 2025
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Update notes for scaling PD nodes #20379

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lilin90 Feb 26, 2025
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lilin90 Feb 26, 2025
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Update scale-tidb-using-tiup.md
lilin90 Feb 26, 2025
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14 changes: 4 additions & 10 deletions scale-tidb-using-tiup.md
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Expand Up @@ -131,7 +131,8 @@ This section exemplifies how to add a TiDB node to the `10.0.1.5` host.

> **Note:**
>
> This operation is only required after you add PD nodes. If you only add TiDB or TiKV nodes, this operation is unnecessary.
> - Refreshing cluster configuration is only required after you add PD nodes. If you only add TiDB or TiKV nodes, skip this step.
> - If you are using TiUP v1.15.0 or a later version, skip this step because TiUP does it. If you are using a TiUP version earlier than v1.15.0, perform the following sub-steps.

1. Refresh the cluster configuration:

Expand All @@ -141,10 +142,6 @@ This section exemplifies how to add a TiDB node to the `10.0.1.5` host.

2. Refresh the Prometheus configuration and restart Prometheus:

> **Note:**
>
> If you are using TiUP v1.15.0 or a later version, skip this step. If you are using a TiUP version earlier than v1.15.0, execute the following command to update the Prometheus configuration and restart Prometheus.

```shell
tiup cluster reload <cluster-name> -R prometheus
```
Expand Down Expand Up @@ -333,7 +330,8 @@ This section exemplifies how to remove a TiKV node from the `10.0.1.5` host.

> **Note:**
>
> This operation is only required after you remove PD nodes. If you only remove TiDB or TiKV nodes, this operation is unnecessary.
> - Refreshing cluster configuration is only required after you remove PD nodes. If you only remove TiDB or TiKV nodes, skip this step.
> - If you are using TiUP v1.15.0 or a later version, skip this step because TiUP does it. If you are using a TiUP version earlier than v1.15.0, perform the following sub-steps.

1. Refresh the cluster configuration:

Expand All @@ -343,10 +341,6 @@ This section exemplifies how to remove a TiKV node from the `10.0.1.5` host.

2. Refresh the Prometheus configuration and restart Prometheus:

> **Note:**
>
> If you are using TiUP v1.15.0 or a later version, skip this step. If you are using a TiUP version earlier than v1.15.0, execute the following command to update the Prometheus configuration and restart Prometheus.

```shell
tiup cluster reload <cluster-name> -R prometheus
```
Expand Down