各种MQTT server功能比較

this page attempts to document the features that various MQTT servers (brokers) support. This is specific to their MQTT support; many of these servers have much wider capabilities beyond just MQTT.

Capabilities

Server	QoS 0	QoS 1	QoS 2	auth	bridge	$SYS	SSL	dynamic topics	cluster	websockets	plugin system
2lemetry	✔	✔	✔	✔	✔	§	✔	✔	✔	✔	✘
Apache ActiveMQ	✔	✔	✔	✔	✘	✘	✔	✔	✔	✔	✔
Apache ActiveMQ Artemis	✔	✔	✔	✔	✘	✘	✔	✔	✔	✔	✔
Bevywise IoT Platform	✔	✔	✔	✔	rm	✔	✔	✔	✔	✔	rm
emitter	✔	§	✘	✔	✘	✘	✔	✔	✔	✔	✘
emqttd	✔	✔	✔	✔	✔	✔	✔	✔	✔	✔	✔
flespi	✔	✔	✔	✔	✘	✘	✔	✔	✔	✔	✘
GnatMQ	✔	✔	✔	✔	✘	✘	✘	✔	✘	✘	✘
HBMQTT	✔	✔	✔	✔	✘	✔	✔	✔	✘	✔	✔
HiveMQ	✔	✔	✔	✔	✔	✔	✔	✔	✔	✔	✔
IBM MessageSight	✔	✔	✔	✔	✘	✔	✔	✔	§	✔	✘
JoramMQ	✔	✔	✔	✔	✔	✔	✔	✔	✔	✔	✔
Mongoose	✔	✔	?	?	?	?	?	?	?	?	?
moquette	✔	✔	✔	✔	?	?	✔	?	rm	✔	✘
mosca	✔	✔	✘	✔	?	?	?	?	✘	✔	✘
mosquitto	✔	✔	✔	✔	✔	✔	✔	✔	§	✔	✔
MQTT.js	✔	✔	✔	§	✘	✘	✔	✔	✘	✔	✘
MqttWk	✔	✔	✔	✔	✔	?	✔	✔	✔	✔	✘
RabbitMQ	✔	✔	✘	✔	✘	✘	✔	✔	?	?	?
RSMB	✔	✔	✔	✔	✔	✔	✘	✔	✘	✘	?
Software AG Universal Messaging	✔	✔	✔	✔	✘	✘	✔	✔	✔	rm	✘
Solace	✔	✔	✘	✔	§	✔	✔	✔	✔	✔	✘
SwiftMQ	✔	✔	✔	✔	✔	✘	✔	✔	✔	✘	✔
Trafero Tstack	✔	✔	✔	✔	✘	✘	✔	✔	✘	✘	✘
VerneMQ	✔	✔	✔	✔	✔	✔	✔	✔	✔	✔	✔
WebSphere MQ	✔	✔	✔	✔	✔	✔	✔	✔	?	?	?

Key: ✔ supported ✘ not supported ? unknown § see limitations rm roadmap (planned)

Limitations

MQTT.js will accept connections with username and password supplied, but do not actually authenticate the connection
IBM MessageSight supports a High-Availability mode which provides the redundancy advantage of a cluster, but does not support any sort of load balancing for MQTT.
2lemetry uses domains, where the first topic segment is the domain name. The $SYS topic space is under the domain (i.e. com.example/$SYS/#)
Solace does provide a proprietary bridge solution between brokers.
mosquitto clustering is achieved on backend level (redis, amqp, etc).
Software AG Universal Messaging provides Active/Active clustering (over a proprietary protocol) and bridging (over a proprietary protocol).

Potentially should add columns to track: LWT; additional protocols (WMQ, AMQP, MQTTs etc)

This is in need of expanding. Please add known information about known brokers to this table and include any known limitations below it.

https://github.com/mqtt/mqtt.github.io/wiki/server-support