EMQ (EMQX) is a distributed, massively scalable, highly extensible MQTT message broker written in Erlang/OTP.
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Questions tagged [emq]
69 questions
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Emqx: Url not found
I downloaded emqx-windows-v3.2.3 from EMQ X Broker .
After unzip and start C:\emqx\bin>emqx start it, when I run its dashboard on chrome http://localhost:18083 I got URL not found ...
What is the problem?
Cyrus the Great
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Emqx : Miss a lot message that pushed by mqtt protocol
I am using mqtt protocol to push some message and my broker is emqx .I write this script by nodejs to push 200,000 message on specific topic:
const mqtt = require('mqtt');
const options = {
clientId: "tazikpush",
clean: true
}
const client…
Cyrus the Great
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How can i retrieve broker connect, disconnect, publish and subscribe event functions in EMQ X broker in Node js?
I am using an mqtt client with EMQ X broker (that is running as a service in my local linux machine) and tested the pub sub mechanism but I want to use broker event function (connect, disconnect, publish and subscribe) for adding a custom logic into…
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Unable to test write and execute operations in emqx_lwm2m plugin in emqx V3.1.1
I am using Emqx V3.1.1 i have enabled emqx_lwm2m plugin and i installed wakaama client.I am able to connect to my lwm2m with 5783 port using wakaama client.(./lwm2mclient -n ep1 -h localhost -p 5783 -4).i am testing with different msg types like…
pujara
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2 answers
unable to connect LWM2M using wakaama client
I am using Emqx V3.1.1. And I am integrating LwM2M plugins.
For testing the same I installed Wakaama client in the same server and created build using cmake. I loaded the plugin now plugin is running.
Which I tried to run the below…
pujara
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1 answer
Configuring Topic Alias for MQTT 5.0 feature Using nodejs
I am trying to implemented shared topic concept using Nodejs code.
Now I am planning to implement Topic Alias using the Nodejs Code.
I have tried with below code but I didn't get proper out:
const mqtt = require('mqtt')
const clientThree =…
pujara
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I have configured emqtt to 1M clients but it is failing after 500 clients
I am trying to configure EMQTT for 1 M clients but it is failing after 500 clients. I am checking through Jmeter with low just 1KB message. The test case is for 1000 clients each sending 1 message per second.
RAM is 16GB
Below is the CPU…
ashok
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Where does the emqtt stores data
In Emqtt where does it stores all the information regarding the client subscription, nodes details, statistics, etc. As per some article I found that it'll be stored in data/mnesia folder for each node. Is is correct?? if correct then how it'll…
ashok
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EMQ 3.0 deployed on AWS unable to receive 4kb mqtt data
I deployed EMQ 3.0 on AWS Ec2 instance and configured it mostly with default configuration but I changed buffer sizes as my requirement is to send an MQTT data of 4KB. But it is not working and EMQ broker is not receving the message. Is there any…
Sainath
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EMQ X delayed message
I'm looking for a solution to publish messages to a special topic after x seconds in EMQX (formerly EMQTT). I've found EMQ X enterprise edition's feature table which shows Delay and schedule message delivery is a feature of enterprise edition not…
devmarkpro
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Mosquitto client can't publish message to EMQ X Broker
I have model like this:
EMQ X Broker installed at IP 222.x.y.z.
And two Mosquitto client.
I want to publish message from Mosquitto_client_2 then receive Mosquitto_client_1.
I do like this:
Step 1: run command:
mosquitto_sub -h 222.x.y.z -t…
ThanhLam112358
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is it possible to use two mqtt listening ports with single broker
we are using emqx (3.0). my emqx is running in 1883 port and it's getting data from devices with authentication(device authentication and topic authorization) in same port. I want to enable one more port for device un-authentication. That's why I…
satish pujara
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EMQX emqx_web_hook Advanced Config
in EMQX software if I use "web_hook plugin" and I try to select Advanced Config there are two fields to fill in if I choose web hook only for message received:
+--------------------------------------------+
| web.hook.rule.message.publish.$name …
Luca Folin
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Mosquitto - EMQX bridge connection name
1) How to determine the Mosquitto bridge connection name.
The snippet written below is from the EMQx documentation (http://emqtt.io/docs/v2/bridge.html#mosquitto-conf)
connection emqttd
address 127.0.0.1:2883
topic sensor/# out 2
the connection…
Abishek G
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1 answer
Is it possible to send files between 2 different MQTT brokers?
I am using 2 different MQTT Brokers(Mosquitto and EMQX). I am able to send messages between my mosquitto to EMQX and also EMQX to mosquitto using command prompt. I want to know if its possible to send files (png, pdf, xlsx, doc) between the two.
If…
Rahul Chopra
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