Tags

Enterprise

• What’s the major difference between EMQ X enterprise and broker?
• Does EMQ X provide consulting service?

Update

• How to update EMQ X license?

Protocol

• Can EMQ X support customized protocols? How to implement?

Extends

• Can EMQ X support customized protocols? How to implement?

Resource estimation

• How to estimate resource usage of EMQ X?

Auth

• EMQ X cannot connect to Mysql8.0

WebHook

• Can I capture device online and offline events? How to use it?
• What’s Hook? What’s the use scenario?

System Topic

• Can I capture device online and offline events? How to use it?
• What is the usage of system topics? What system topics are available?

Message Queue

• What’s mqueue? How to use mqueue in EMQ X?

WebSocket

• What’s WebSocket? When to use Websocket to connect EMQ X?

ACL

• I want to control topics can be used for specific clients, how to configure it in EMQ X?

Pub/Sub

• What’s shared subscription, and it’s use scenario?

Shared Subscription

• What’s shared subscription, and it’s use scenario?

Rate Limit

• Can EMQ X support traffic control?

Retain

• What is off-line message?

Subscription by Broker

• What is Subscription by Broker? And its use scenario?

Performance

• When I was executing stress test, the connection number and throughput are lower than expected. How can I tune the system to make full use of it?
• My connections number is small, do I still need to deploy multiple nodes in production?
• Use of ssl resumption session in EMQ X

Persistence

• Can I forward MQTT messages EMQ X to other MQTT broker, like RabbitMQ?

REAT API

• Can I disconnect an MQTT connection from EMQ X server?

Dashboard

• Can I disconnect an MQTT connection from EMQ X server?

Kafka

• Can EMQ X forward messages to Kafka?
• I use Kafka bridge in EMQ X enterprise, when will the MQTT Ack packet sent back to client? Is the time when message arriving EMQ X or after getting Ack message from Kafka?

Bridge

• Can other MQTT broker (for example Mosquitto) forward messages to EMQ X?-forward-messages-to-emq-x)

Cluster

• Does EMQ X support cluster auto discovery? What clustering methods are supported?

RabbitMQ

• Can I forward MQTT messages EMQ X to other MQTT broker, like RabbitMQ?

Cloud

• Can I forward messages from EMQ X to MQTT services hosted on public cloud?

Mosquitto

• Can other MQTT broker (for example Mosquitto) forward messages to EMQ X?-forward-messages-to-emq-x)

Trace

• What should I do if I want trace the subscription and publish of some particular message?

Debug

• When I was executing stress test, the connection number and throughput are lower than expected. How can I tune the system to make full use of it?
• How to troubleshoot if EMQ X can’t start after installation?

TLS

• Does EMQ X support encrypted connection? What is the recommended deployment?

MySQL

• EMQ X cannot connect to Mysql8.0

Metrics

• MQTT client disconnect statistics