> For the complete documentation index, see [llms.txt](https://data-programs.gitbook.io/singularity/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://data-programs.gitbook.io/singularity/zh/faq/database-is-locked.md).

# 数据库已锁定

当使用Singularity的默认数据库后端（SQLite3）时，可能会遇到"数据库被锁定"的错误消息。

## 为什么会发生这个问题？

SQLite3使用文件作为其数据库。每当进行写操作时，SQLite3会锁定该文件。如果多个写操作同时进行，就会出现"数据库被锁定"的错误。

## 你应该怎么做？

* **自动重试**：Singularity被设计为自动重试产生此错误的操作。因此，在许多情况下，您可以安全地忽略此错误消息。
* **软件挂起**：如果您认为Singularity因此错误而无响应，请将其报告为错误。

## 生产环境建议

SQLite适用于开发或轻负载工作，但不建议在生产环境中使用。有关在具有更强大的数据库后端的生产环境中部署Singularity的指南，请查阅[部署到生产环境指南](/singularity/zh/installation/deploy-to-production.md)。


---

# 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 by asking a question.

Perform an HTTP GET request on the following URL with the `ask` and `goal` query parameters:

```
GET https://data-programs.gitbook.io/singularity/zh/faq/database-is-locked.md?ask=<question>&goal=<user_goal>
```

`ask` is the immediate question: it should be specific, self-contained, and written in natural language.
`goal` is what the user is ultimately trying to achieve, the reason they need the answer. Sharing it helps GitBook give you a better, more relevant answer. A goal is most helpful when it describes the outcome the user wants rather than restating the question. For example, with `ask=how do I create an API token`, a goal like `automate deployments from our CI pipeline` lets GitBook tailor the answer to that use case.

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.