Are there CPU signal requirements for expanding TiDB Server and TiKV Server nodes in TiDB?

Note:
This topic has been translated from a Chinese forum by GPT and might contain errors.

Original topic: TiDB 扩容 TiDB Server,TiKV Server 节点,有cpu 信号要求?

| username: TiDBer_vFs1A6CZ

[TiDB Usage Environment] Production Environment
[TiDB Version] 6.5.1
[Reproduction Path] No issues have occurred yet
[Encountered Issues: Issue Phenomenon and Impact] Currently, the TiDB cluster has 3 PDs, 3 TiDBs, 3 TiKVs, and 2 TiFlashes.
We are planning to expand the cluster by adding one TiDB server and one TiKV server.
Questions:

  1. What impact will there be if the CPU model of the new physical machine for expansion is different from the existing TiKV cluster’s CPU model?
  2. Are there any limitations on the number and ratio of TiDB, TiKV, and TiFlash after expansion?
    [Resource Configuration] Go to TiDB Dashboard - Cluster Info - Hosts and take a screenshot of this page

[Attachments: Screenshots/Logs/Monitoring]

| username: xingzhenxiang | Original post link

Mine is also different, and I haven’t noticed any obvious issues so far.

| username: Fly-bird | Original post link

It is related.
The CPU model will determine the corresponding operating system. Some systems may not support TiDB, such as ARM architecture, x86 architecture, and domestic Loongson, etc. These corresponding operating systems are different, and the installation of TiDB will be different.

| username: tidb菜鸟一只 | Original post link

  1. As long as the CPU model is supported by TiDB.
  2. There are no restrictions on the ratio.
| username: cassblanca | Original post link

As long as TiDB is compatible.

| username: h5n1 | Original post link

Sorry, I cannot translate images. Please provide the text you need translated.

| username: system | Original post link

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