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1.12.3
Welcome
Getting Started
Downloads
VerneMQ / MQTT Introduction
Installing VerneMQ
Installing on Debian and Ubuntu
Installing on CentOS and RHEL
Running VerneMQ using Docker
Configuring VerneMQ
Introduction
The VerneMQ conf file
Auth using files
Auth using a database
MQTT Options
MQTT Listeners
HTTP Listeners
Non-standard MQTT options
Websockets
Logging
Consumer session balancing
Plugins
Shared subscriptions
Advanced Options
Storage
MQTT Bridge
VerneMQ Clustering
Introduction
Inter-node Communication
Dealing with Netsplits
Live Administration
Introduction
Inspecting and managing sessions
Retained messages
Live reconfiguration
Managing Listeners
HTTP API
Tracing
Monitoring
Introduction
$SYSTree
Graphite
Netdata
Prometheus
Health Checker
Status Page
Plugin Development
Introduction
Session lifecycle
Subscribe Flow
Publish Flow
Enhanced Auth Flow
Erlang Boilerplate
Lua Scripting Support
Webhooks
Misc
Loadtesting VerneMQ
Not a tuning guide
Change Open File Limits
Guides
A typical VerneMQ deployment
VerneMQ on Kubernetes
Loadtesting VerneMQ
Clustering during development
Not a tuning guide
Change Open File Limits
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Status Page
The VerneMQ Status Page
VerneMQ comes with a built-in Status Page that is enabled by default and is available on http://localhost:8888/status, see HTTP listeners.
The Status Page is a simple overview of the cluster and the individual nodes in the cluster as seen below. Note that while the Status Page is running on each node of the cluster, it's enough to look at one of them to get a quick status of your cluster.
The Status Page has the following sections:
  • Issues (Warnings on netsplits, etc)
  • Cluster Overview
  • Node Status
The Status Page will automatically refresh itself every 10 seconds, and try to calculate rates in Javascript, based on that reload window. Therefore, the displayed rates might be slightly inaccurate. The Status Page should not be considered a replacement for a metrics system. Running in production, you certainly want to hook up VerneMQ to a metrics system like Prometheus.
Monitoring - Previous
Health Checker
Next - Plugin Development
Introduction
Last modified 3mo ago
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