> For the complete documentation index, see [llms.txt](https://viva.gitbook.io/project/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://viva.gitbook.io/project/cloud-native/prometheus.md).

# Prometheus

### 如何生成各种步长精度的查询结果

{% embed url="<https://cloud.tencent.com/developer/article/1382875>" %}

## 本地存储

prometheus的数据分布在一个个的block目录中，每个block目录中存储时长2小时的数据。block中的数据经过压缩分为一个个的chunk，每个chunk默认大小为512MB。block中的index存储该block中的指标标签和各种索引，meta.json存储block的元数据信息，tombstones存储已经被软删除的数据偏移位置


---

# Agent Instructions
This documentation is published with GitBook. GitBook is the documentation platform designed so that both humans and AI agents can read, navigate, and reason over technical content effectively. Learn more at gitbook.com.

## Querying This Documentation
If you need additional information that is not directly available in this page, you can query the documentation dynamically by asking a question.

Perform an HTTP GET request on the current page URL with the `ask` query parameter, and the optional `goal` query parameter:

```
GET https://viva.gitbook.io/project/cloud-native/prometheus.md?ask=<question>&goal=<endgoal>
```

`ask` is the immediate question: it should be specific, self-contained, and written in natural language.
`goal` is optional and describes the broader end goal you are ultimately trying to accomplish on behalf of the user. GitBook uses it to tailor the answer towards what is most useful for that goal.

The response will contain a direct answer to the question and relevant excerpts and sources from the documentation.

Use this mechanism when the answer is not explicitly present in the current page, you need clarification or additional context, or you want to retrieve related documentation sections.