How to increase the number of active instances in TiDB-Lightning logical import mode, and which parameters determine it?

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

Original topic: 请问tidb-lightning逻辑导入方式,怎么增加active的个数是由哪些参数决定的?

| username: tony5413

[TiDB Usage Environment] Production Environment / Testing / PoC
[TiDB Version]
[Reproduction Path] What operations were performed when the issue occurred
[Encountered Issue: Issue Phenomenon and Impact]
[Resource Configuration] Go to TiDB Dashboard - Cluster Info - Hosts and take a screenshot of this page
[Attachments: Screenshots / Logs / Monitoring]
The version of lightning is v7.5.0

| username: tony5413 | Original post link

Currently, there are only two. How can I increase the number of active ones?

| username: 迪迦奥特曼 | Original post link

Refer to 使用逻辑导入模式 | PingCAP 文档中心