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54 lines
1.3 KiB
Markdown
54 lines
1.3 KiB
Markdown
Testing three different MQTT brokers: mosquitto, hbmqtt (python) and volantmq (go).
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The goal is to compare different brokers using the same client code.
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In particular, I wanted to know if the main python and golang broker implementations support QOS level 2 subscriptions.
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i.e. whether the broker will store undelivered messages while the subscriber is offline, and deliver them once it comes online.
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The compose file sets up the three brokers, and two clients (a producer and a consumer).
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## Setup
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Before you launch the clients, launch the brokers you want to try with compose.
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This will launch the three brokers:
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```
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docker-compose up mosquitto pybroker gobroker
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```
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## Clients
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The clients can be configured to use different brokers with the `MQTT_HOST` environment variable (see below).
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You can run as many clients as you wish.
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### Mosquitto
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```
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docker-compose run -e MQTT_HOST=mosquitto consumer
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```
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```
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docker-compose run -e MQTT_HOST=mosquitto producer
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```
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### HBMQTT (python)
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This broker is using BoltDB (an embedded key-value store) for persistence.
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```
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docker-compose run -e MQTT_HOST=pybroker consumer
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```
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```
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docker-compose run -e MQTT_HOST=pybroker producer
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```
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### VolantMQ (Go)
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```
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docker-compose run -e MQTT_HOST=gobroker consumer
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```
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```
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docker-compose run -e MQTT_HOST=gobroker producer
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```
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