hbmqtt broker doesn't time out PetNet Feeder correctly

[kruton]

I saw this in testing sometimes, but it looks like hbmqtt broker isn't timing out clients correctly. Since the Feeder always connects with the same client ID, it will assume the state machine state that the hbmqtt broker has. Sometimes the hbmqtt state machine doesn't transition it to the "Disconnected" state in time. So it will try to transition from the "Connected" to "Connected" state, resulting in messages like this:

2020-10-15 09:55:40,505   WARNING  hbmqtt.broker: Client 40285608b03f085d1b4e31ec5f60b3b912f64f2d is reconnecting too quickly, make it wait     
2020-10-15 09:55:40,505   WARNING  hbmqtt.broker: Client 40285608b03f085d1b4e31ec5f60b3b912f64f2d is reconnecting too quickly, make it wait     
2020-10-15 09:55:40,509   WARNING  hbmqtt.broker: Client 40285608b03f085d1b4e31ec5f60b3b912f64f2d is reconnecting too quickly, make it wait     
2020-10-15 09:55:40,509   WARNING  hbmqtt.broker: Client 40285608b03f085d1b4e31ec5f60b3b912f64f2d is reconnecting too quickly, make it wait     
2020-10-15 09:55:40,509   WARNING  hbmqtt.broker: Client 40285608b03f085d1b4e31ec5f60b3b912f64f2d is reconnecting too quickly, make it wait     
2020-10-15 09:55:40,518   WARNING  hbmqtt.broker: Client 40285608b03f085d1b4e31ec5f60b3b912f64f2d is reconnecting too quickly, make it wait     
2020-10-15 09:55:40,518   WARNING  hbmqtt.broker: Client 40285608b03f085d1b4e31ec5f60b3b912f64f2d is reconnecting too quickly, make it wait     
2020-10-15 09:55:40,518   WARNING  hbmqtt.broker: Client 40285608b03f085d1b4e31ec5f60b3b912f64f2d is reconnecting too quickly, make it wait     
2020-10-15 09:55:40,518   WARNING  hbmqtt.broker: Client 40285608b03f085d1b4e31ec5f60b3b912f64f2d is reconnecting too quickly, make it wait     
2020-10-15 09:55:40,525   WARNING  hbmqtt.broker: Client 40285608b03f085d1b4e31ec5f60b3b912f64f2d is reconnecting too quickly, make it wait     
2020-10-15 09:55:40,525   WARNING  hbmqtt.broker: Client 40285608b03f085d1b4e31ec5f60b3b912f64f2d is reconnecting too quickly, make it wait     
2020-10-15 09:55:40,525   WARNING  hbmqtt.broker: Client 40285608b03f085d1b4e31ec5f60b3b912f64f2d is reconnecting too quickly, make it wait     
2020-10-15 09:55:40,525   WARNING  hbmqtt.broker: Client 40285608b03f085d1b4e31ec5f60b3b912f64f2d is reconnecting too quickly, make it wait     
2020-10-15 09:55:40,526   WARNING  hbmqtt.broker: Client 40285608b03f085d1b4e31ec5f60b3b912f64f2d is reconnecting too quickly, make it wait     
2020-10-15 09:55:40,526   WARNING  hbmqtt.broker: Client 40285608b03f085d1b4e31ec5f60b3b912f64f2d is reconnecting too quickly, make it wait     
2020-10-15 09:55:40,526   WARNING  hbmqtt.broker: Client 40285608b03f085d1b4e31ec5f60b3b912f64f2d is reconnecting too quickly, make it wait     
2020-10-15 09:55:40,528   WARNING  hbmqtt.broker: Client 40285608b03f085d1b4e31ec5f60b3b912f64f2d is reconnecting too quickly, make it wait     
2020-10-15 09:55:40,528   WARNING  hbmqtt.broker: Client 40285608b03f085d1b4e31ec5f60b3b912f64f2d is reconnecting too quickly, make it wait

[kruton]

I'm not sure why it's looping so fast, because according to the code it should pause for one second between allowing the client to retry.

[kruton]

It might have something to do with hbmqtt peculiarities. I reported an issue upstream at njouanin/hbmqtt#220

[kruton]

@mbillow I think this is fixed now?

[mbillow]

Yup, closing.