为 PD 监控说明添加针对不同调度器事件的介绍
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Since Jul 10, 2024.
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Description
Change Request
This repository is ONLY used to solve problems related to DOCS-CN.
For other issues (TiDB, TiKV, etc), please move to other repositories.
Please answer the following questions before submitting your issue. Thanks!
- Describe what you find is inappropriate or missing in the existing docs.
PD 重要监控指标详解 - Scheduler 中只介绍了各个面板的基本功能，但实际上针对每个监控项内部的事件也可以出具具体的说明，以便读者进一步理解监控的实际作用。
- Describe your suggestion or addition.
例如，我们可以为 Region Merge Checker 添加内部事件的说明：
图中的 recently-start 意味着当前的 merge 调度由于 PD 刚刚启动的原因，需要至少等待一个 schedule.split-merge-interval 周期才会开始触发 merge 调度。如果想要加速，可以通过调整该配置参数的值来做到提前触发。
- Provide some reference materials (documents, websites, etc) if you could.
Contributor guide
First steps
- Read the whole issue, then the project's contributing guide.
- Comment on the issue to say you are picking it up — it saves two people doing the same work.
- Fork the repository and make your change on a branch.
- Open a pull request that references the issue number.
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