Reconnect after Internet connection was recovered

[marioishikawa]

I have seen that there are some cases in which the node appears as disconnected from Google Cloud, although there is Internet connection available. It does not reconnect until I restart node-red or execute a new deploy. Is this a normal behavior? Is there a way to set an auto-retry time?

[marioishikawa]

Although I didn't discover the origin of the problem, looking to the code I noticed that apparently the reconnect time is set to 5000 on this.options.reconnectPeriod = RED.settings.mqttReconnectTime || 5000;. The KeepAlive default time is 60s. When this value is set to less than 5s, the reconnection works.

[marioishikawa]

Apparently there is still a problem, when Node-Red is started with no connection. In this situation, the MQTT node remains disconneted without retrying to communicate.

[cyberflohr]

I'll take a look at that

[marioishikawa]

I'll take a look at that

Thank you. One question regarding the behavior of the memory database in this situation: the only way to recover the connection is restarting node-red or doing a new deploy. In this case, apparently there is no buffer anymore or the buffer is lost. The local outgoing file, when I checked before deploying (I simply moved the node in the screen and deployed), was empty. But I believe the data was in memory. Is that correct? The data remains in memory only and after a new deploy is lost? I'd like to know what would be the correct sequence of steps to manually recover the connection without losing the data.

[cyberflohr]

As described in the README this project ist based on MQTTDB. The in-memory DB is provided by MQTTDB, therefore it would be better to ask this question in the MQTTDB issue board. Nevertheless I will make some tests to find out, how things will work together.

[marioishikawa]

I asked on the repo MQTTDB and their answer is that it does not lose data when re-started. But this is the behavior I'm observing in this node. Thank you!

[marioishikawa]

I think this comes from Node-Red MQTT and it is related to this issue.
There is a "try" added to the file.

[Jaimenms]

I have the same problem. Any new ideas to solve it???