# 如何重启或关闭服务？

一旦使用Omnibus包安装之后，实际上等于集成了命令控制台。常见命令包括：

```
# Start all GitLab components
sudo gitlab-ctl start

# Stop all GitLab components
sudo gitlab-ctl stop

# Restart all GitLab components
sudo gitlab-ctl restart

# Restart Nginx
sudo gitlab-ctl restart nginx
```

Note that on a single-core server it may take up to a minute to restart Unicorn and Sidekiq. Your GitLab instance will give a 502 error until Unicorn is up again.

It is also possible to start, stop or restart individual components.

```
sudo gitlab-ctl restart sidekiq
```

Unicorn supports zero-downtime reloads. These can be triggered as follows:

```
sudo gitlab-ctl hup unicorn
```

Note that you cannot use a Unicorn reload to update the Ruby runtime.

更多命令：<https://docs.gitlab.com/omnibus/maintenance/README.html#starting-and-stopping>


---

# Agent Instructions: 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:

```
GET https://websoft9.gitbook.io/gitlab-image-guide/gitlab-jing-xiang-shou-ce-1/ru-he-zhong-qi-huo-guan-bi-fu-wu.md?ask=<question>
```

The question should be specific, self-contained, and written in natural language.
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.