Hi, I'm using the MQTT node to send data to a cloud server, the Node-Red server is installed in a Physical Device which is collecting data from a PLC. In the MQTT out node configuration I'm using QoS 1 and I noticed that when the internet is disconnected on the device that has the Node-Red server installed and then reconnected, the data that the PLC sent to Node Red during the time of the internet disconnection is now sent at once. So I'm guessing that the MQTT node has a Buffer or something to store this data to send it when the connection is available again.
So my question is: How big is this Buffer or how much data can be store here during that disconnection time? Is there any way that I can know that?.