# Mender-monitor does not work

**URL:** <https://hub.mender.io/t/mender-monitor-does-not-work/4364>\
**Category:** General Discussions\
**Created:** [December 1, 2021, 9:09am UTC](https://hub.mender.io/t/mender-monitor-does-not-work/4364 "2021-12-01T09:09:29Z")\
**Posts on this page:** 1\
**Showing post:** 4

<div class="post-metadata">

**Author:** ![oleorhagen](https://yyz2.discourse-cdn.com/flex036/user_avatar/hub.mender.io/oleorhagen/32/297_2.png) [@oleorhagen](https://hub.mender.io/u/oleorhagen)\
**Post date:** [December 1, 2021, 9:21am UTC](https://hub.mender.io/t/mender-monitor-does-not-work/4364/4 "2021-12-01T09:21:53Z")

</div>

There are the docs:

> [@Mender 3.1 release: Monitor using edge processing | Mender](https://hub.mender.io/t/mender-3-1-release-monitor-using-edge-processing-mender/4128):
>
> We are excited to announce the Mender 3.1 release! Mender 3.1 introduces the brand new Monitor add-on package. Unlike traditional monitoring tools, Mender’s Monitor add-on is built for connected devices. It uses edge processing, is designed for intermittent connectivity and requires much less bandwidth. This is a companion discussion topic for the original entry at [https://mender.io/blog/mender-3-1-release-monitor-using-edge-processing](https://mender.io/blog/mender-3-1-release-monitor-using-edge-processing)

[https://docs.mender.io/add-ons/monitor](https://docs.mender.io/add-ons/monitor)

Which shows you how to use the currently supported monitoring subsystems:

- log
- services
- dbus

However, it does not seem we have any good tutorials for writing custom subsystems present (this should be amended imo):

In the meantime, I am actually writing some demo code that we are about to ship in our demo setup, which will be some variation of [this](https://github.com/mendersoftware/monitor-client/pull/99) Pr.

Here you can see how I have created a `docker events` subsystem, and added a log-monitor for `USB disconnects`.

Have a look at this, and tell me if it is helpful or not. I will help you out here, then you can help me out improving our documentation on the subject for future users 😃

---

_[View the full topic](https://hub.mender.io/t/mender-monitor-does-not-work/4364)._