> For the complete documentation index, see [llms.txt](https://docs.natsclub.cn/cn/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs.natsclub.cn/cn/yi-chan/stan/intro/channels/message-log.md).

# 消息日志

You can view a message log as a First In First Out (FIFO) queue. Messages are appended to the end of the log. If a limit is set globally for all channels, or specifically for this channel, when the limit is reached, older messages are removed to make room for the new ones.

But except for the administrative size/age limit set for a message log, messages are not removed due to consumers consuming them. In fact, messages are stored regardless of the presence of subscriptions on that channel.


---

# 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:

```
GET https://docs.natsclub.cn/cn/yi-chan/stan/intro/channels/message-log.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.