# 并发 API 参考文档

## 前言

内容来自官网的 [etcd concurrency API Reference](https://github.com/coreos/etcd/blob/master/Documentation/dev-guide/api_concurrency_reference_v3.md)。

类似核心 API 参考文档，我们在翻译时没有复制原文中从 `.proto` 文件生成的表格，而是直接在 `.proto` 文件的 message 定义上翻译。

## 内容

已经整理并翻译的内容：

* [Lock service](/etcd/index-2/index.md)
* [Election service](/etcd/index-2/index-1.md)


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

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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.