Prometheus is an open-source application used for event monitoring and alerting. It records metrics in a time series database (allowing for high dimensionality) built using an HTTP pull model with flexible queries and real-time alerting. The project is written in Go and licensed under the Apache 2 License, with source code available on GitHub.
Rocket.Chat.Metrics repository contains a basic monitoring setup of 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 connection ID.
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.
The Rocket.Chat Metrics GitHub repository is now deprecated. To access the dashboards, use the following links from the official Grafana dashboard directory:
If you want the dashboard’s JSON files, you can directly download them from these links. Alternatively, you can use the URL format https://grafana.com/api/dashboards/${id}/revisions/${version}/download. Here, ${id} is the dashboard ID and ${version} is the revision version. The dashboard ID can be found from the directory URL (for example, 23428), and the revision version can be found in the Revisions section.
Check out Rocket.Chat’s published dashboards from here: https://grafana.com/orgs/rocketchat/dashboards