Problem with MQTT

[Kalju]

Hi everybody,

Here's my problem - and I have to admit I'm not a developer by any means... :-)

I can not get mqtt working on my site

Here are my settings - mind you, I'm not using SSL:

weewx.conf

    [[MQTT]]

        server_url = mqtt://weewx:weather@localhost:1883/

        topic = weather

        unit_system = US

        binding = archive, loop

        aggregation = aggregate

        #log_success = False

        log_failure = True

skin.conf

    # MQTT Websockets defaults

    mqtt_websockets_enabled = 1

    mqtt_websockets_host = "localhost"

    mqtt_websockets_port = 9001

    mqtt_websockets_ssl = 0

    mqtt_websockets_topic = "weather/#"

    disconnect_live_website_visitor = 1800000

mosquitto.conf

persistence false

allow_anonymous true

password_file /volume1/@appstore/mosquitto/var/passwd

 

acl_file /volume1/@appstore/mosquitto/var/acl

 

# Insecure mqtt to localhost only, and secure mqtt

listener 1883

protocol mqtt

 

# websockets

listener 9001

protocol websockets

websocket 9001 receives messages (mqtt-spy)

mqtt 1883 receives messages (mqtt)

But there is no connection. From Chrome developer console I see that the access to ws://localhost:9001/mqtt is declined...

What I'm doing wrong?

[Pat]

Hi Kalju, 

First change your mqtt_websockets_topic = "weather/#" to weather/loop. (Just curious, did you follow a tutorial of mine somewhere? I see a lot of folks using # when it shouldn't be used. Wondering if I need to clean that up somewhere)

Second, mosquitto is very, very picky. Double check your mosquitto.conf file that there's no whitespace at the end of each line, make sure every empty line doesn't contain a blank space, etc.

Third, "when in doubt, reboot". You'll be surprised at how often a reboot fixes many mosquitto problems.

[Pat]

Also sidenote that using Chrome's developer tools, you won't be able to access any ws:// or wss:// endpoint directly. It's not like http. You can download this websocket test website to your server's http folder and try it to see if it'll connect. This will take weewx and Belchertown out of it for testing

On Friday, June 14, 2019 at 2:35:28 PM UTC-4, Kalju wrote:

[mwall]

On Friday, June 14, 2019 at 7:52:27 PM UTC-4, Pat wrote:

Third, "when in doubt, reboot". You'll be surprised at how often a reboot fixes many mosquitto problems.

um... no!

check the mosquitto log.  if necessary, restart the mostquitto process.  or turn up the logging level in mosquitto.

reboot is what you do if you cannot be bothered to actually fix the problem.  its putting black tape over the "out of oil" indicator in your car, then wondering why, one day, your car won't ever start again.

[Pat]

Thanks mwall. Might explain why I go through cars every 3,000 miles :) 

It seems that mosquitto version 1.4.15 is more forgiving with the configs. I just tried to break it with known whitespace problems and it started without issue. So check the mosquitto.log to see what's wrong.