# Grafana

[Grafana](https://github.com/grafana/grafana) is a multi-platform open-source analytics and interactive visualization web application. It provides charts, graphs, and alerts for the web when connected to supported data sources. It can be easily installed using [Docker](https://en.wikipedia.org/wiki/Docker_\(software\)) or Docker Compose.

[Rocket.Chat.Metrics](https://github.com/RocketChat/Rocket.Chat.Metrics) repository contains a basic monitoring setup of [Rocket.Chat](https://github.com/RocketChat/Rocket.Chat), based on Grafana and Prometheus. It currently shows and visualizes the following application metrics/information:

* **General totals**: users online/away, DDP users, diffs based on time range
* **Metrics**: requests and total size per instance
* **NodeJS**: active handles, requests, event loop lag, heap used, per instance heap, garbage collector
* **DDP rate limiter**: by method, by type, by userId, by connectionId
* **Rocket.Chat Data:** messages sent, total sent, user presence, users & sessions, Oplog, push queue, Meteor facts, total users, total rooms, notification per minute per notification type
* **Meteor**: methods total time, methods time, method calls per minute
* **Subscriptions**: subscription total time, subscription time, subscription calls per minute
* **Callbacks & Hooks:** callbacks total time, callbacks time, callback calls per minute, hooks total time, hooks time, hook calls per minute
* **REST API:** REST total time, REST time, REST calls per minute

{% embed url="<https://github.com/RocketChat/Rocket.Chat.Metrics>" %}
Rocket.Chat.Metrics
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