Websocket connection doesn’t get messages on subscription after terminated reconnect #645

[usernametaken]

1. I am running mosquitto 1.5.8 (Windows)
2. I am connecting using websockets
3. I am having a similar issue to Websocket connection doesn’t get messages on subscription after terminated reconnect #645 (Websocket connection doesn’t get messages on subscription after terminated reconnect #645)
4. I connect with a Fixed ClientID
5. CleanSession = False (with CleanSession = True ... no problem)
6. QoS is irrelevant to the problem (I tried all levels)

a) I start my application connect, subscribe and publish... everything works fine
b) I kill my application without sending a DISCONNECT first
> Socket error on client Client1, disconnecting
Everything works fine

c) I send a DISCONNECT before disconnecting :-( The problem starts
After Reconnecting , and subscribing to the same Topic,
I don't receive PUBLISHed messages anymore
d) If I kill my client application and start again.... It still does not work.
e) If I stop and restart mosquitto ... reconnect and subscribe (with or without restarting the client)... everything works.

Doing the same with a TCP client... all works fine

[ralight]

Thanks for the easy to follow steps. I confirm this is behaving as you state. It's a bit involved to fix, so won't be part of 1.6.

[usernametaken]

Thanks... I am fine for now.
As a workaround I just don't send DISCONNECT before disconnecting, if CleanSession is false,
... I simply close the socket.

[ralight]

Yes that works - as long as you don't want to control whether a Will is sent or not, which is why I didn't suggest it as the solution.

[ralight]

I've just pushed a fix for this to the fixes branch. If you feel you can give it a try and report back that would be great. It turns out the fix wasn't as involved as I thought, which is good.