mqttmosquittoqos
MQTT qos 2 timeout between PUBREC and PUBREL
Is there some timeout mechanism for MQTT between PUBREC and PUBREL in QOS 2?
Or the timeout is same as global keep alive timeout?
Thanks!
Diagram from HiveMQ (http://www.hivemq.com/blog/mqtt-essentials-part-6-mqtt-quality-of-service-levels)
Solution
For mosquitto the option you are looking for is
retry_interval
Taken from the man page
retry_interval seconds
The integer number of seconds after a QoS=1 or QoS=2 message has been sent that mosquitto will wait before retrying when no response is received. If unset, defaults to 20 seconds.
Reloaded on reload signal.
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