MQTT devices relying on retained messages may not work correctly

home-climate-control / dz

Home Climate Control Core: *the* Open Source multi-zone temperature and climate control system.

http://homeclimatecontrol.com/

GNU General Public License v3.0

59 stars 7 forks source link

MQTT devices relying on retained messages may not work correctly #296

Closed climategadgets closed 10 months ago

climategadgets commented 10 months ago

Expected Behavior

Device drivers read retained messages upon connecting to an MQTT broker and act upon them.

Actual Behavior

Overoptimized MqttAdapter with just one connection to one broker manages to read and discard retained messages (because there are no subscribers for them yet) before subscribers come, hence, they miss retained messages and may get stuck in wrong state (case in point, same manifestation as #295).

climategadgets commented 10 months ago

Fixed as of rev. bfdc029902053a1118dbc15343eee22147da1d36