Are there any restrictions or limitations on Thin-edge for:
Topic length: Unlimited or limited?
Number of topics: Unlimited?
Payload: Unlimited?
A customer should be able to select the sensor data to be sent to Cumulocity via an interface.
Do we need to pay attention to the above questions to avoid making mistakes?
We are currently still using version 1.4.2, but will soon be switching to 1.6.1.
Thanks in advance,
David
Cumulocity has some documentation which describes the quotas for various.
For instance, the docs show the following limit for the Core MQTT endpoint:
The message size includes both the topic and the payload, so as long as you stay under that limit then you should be ok.
The local MQTT broker (i.e. mosquitto) can also be configured to set limits on the size, however the defaults are larger than the cloud’s limits, so it won’t be shaping the design too much.
The upcoming Cumulocity MQTT Service has higher limits (allowing MQTT messages up to 128KiB, detailed here), so that might be of interest if you’re planning on leveraging that in the future (once the MQTT Service is in GA of course).