Questions tagged [mosquitto]

For questions concerning Eclipse Mosquitto, an open source MQTT broker implementation, including setup questions, issues with running the broker, and questions about the behaviour of Mosquitto.

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Offline messages not being send to Adafruit IoT portal by Mosquitto broker

I have a Raspberry Pi in which I have installed Mosquitto broker and MQTT. Pi is connected to sensor and I need to send this data to Adafruit IoT protal. I am able to send all the data when the Pi is ...
4
votes
1answer
180 views

Why does Mosquitto not apply access lists correctly?

I tried to apply an access list to a user, but Mosquitto always takes the highest access level and apply it. I tried to apply this: user roger topic readwrite device/1/# topic read device/1/name/ I ...
3
votes
1answer
71 views

How to speed up first Mosquitto message?

When sending MQTT messages, first message arrives within 2 seconds and subsequent messages sent within less than 20 secs from first message, arrive in about 0.5 second. I would like to speed up those “...
3
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0answers
55 views

What IoT services are available for free that does not have message rate limit?

let say my other device publishes messages every 10ms (trying to show a real time graph in mobile app) sending at slower rate i.e every 1s instead of 10ms would result to wrong output. Are there any ...
2
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0answers
926 views

Mosquitto service won't start

I have an AWS EC2, Ubuntu-16.04 instance where Mosquitto is installed. I noticed that, the mosquitto process dies out and nothing apparent seems to be appear in the log /var/log/mosquitto/mosquitto....
1
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0answers
26 views

Subscription makes impact on access control in Mosquitto

I have single line in Mosquitto ACL file: pattern read write s2 I'm trying to post to s2 : mosquitto_pub -h 192.168.1.8 -t s2 --cafile ca.crt -m "test" -p 8883 -d -u b -P b -i b Got results in ...
1
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0answers
380 views

Why is Mosquitto broker and Paho client running CPU 100% on connection?

I would like to use the mosquitto MQTT broker using Websockets. I am running mosquitto version 1.6.2 on a Debian 8 server. "normal" MQTT works fine, but I am having a problem trying to connect using ...
0
votes
1answer
17 views

mosquitto_sub and grep to trigger command/action

I can use mosquitto_sub to subscribe to broker for a specific topic, say test_topic, mosquitto_sub -h MOSQUITTO_BROKER_HOSTNAME -t test_topic I can also pipe grep for a specific keyword, say ...
0
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0answers
26 views

Why can't FireFox connect to mosquitto via websocket on Ubuntu 20.04? No problem with Ubuntu 18.04

I tried to set up a new server with mosquitto. When I set up mosquitto on Ubuntu 18.04, both FireFox and Chrome can connect to it via websocket. When I set up the mosquitto on Ubuntu 20.04, only ...
0
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0answers
232 views

+QIURC: “pdpdeact”,1 when trying to open network using AT+QMTOPEN over LTE-M1

I am trying to connect to the mosquito server over Vodafone CAT-M1 network but the call to AT+QMTOPEN always fails with +QIURC: "pdpdeact",1. Below are more details. The device is able to ...