Disconnection between MQTT Sever and Thinsboard Devices [HELP]

[adriortega]

Describe the issue Hi, I am having some problems with my mqtt connection. I am sending data from a remote installation to Thingsboard Gateway, using Modbus Protocol and a MQTT connection.

I am using several gateways simultaneously, each one connected to different devices, in order to read and send data; and also to send rpcs from Thingsboard to the installation. There are 2 types of jsons:

• Some of them, have included only one devices with lots of different variables. These ones works properly in both issues, reading attributes and timeseries, and sending RPCs.
• The other ones, have a different configuration, because they include several devices, between 30 and 80 , but with much less variables each one. They send data to Thingsboard one after the other. I have noticed that if one device sends data 12-15 minutes ago, it disconnects from the server, so it is impossible to perform a rpc to it.

So I would like to know if the mqtt server connection timeout is configurable, and where can I configure it. Because I want to run this application continuously, and it may be necessary to send rpcs at any moment.

Theoretically, when a rpc is made, a master's connection is created, so it shouldn´t be any problem.

Configuration

{ "server": { "type": "tcp", "host": "10.101.1.33", "port": 502, "timeout": 1000, "method": "socket", "byteOrder": "BIG", "wordOrder": "LITTLE", "devices": [ { "unitId": 1, "deviceName": "TCU_NCU_1_Baldio_1", "attributesPollPeriod": 86400000, "timeseriesPollPeriod": 300000, "sendDataOnlyOnChange": true, "attributes": [ { "tag": "ActuatorCtrl", "type": "16uint", "functionCode": 4, "objectsCount": 1, "address": 30020, "sendDataOnlyOnChange": true } ], "timeseries": [ { "tag": "EnergyToday_a1_J", "type": "32float", "functionCode": 4, "objectsCount": 2, "address": 30013, "sendDataOnlyOnChange": true } ], "rpc": { "setApproachBand_a1_pul": { "type": "16uint", "value": 0, "functionCode": 6, "address": 41096, "tag": "variable", "objectsCount": 1 } }

And this is repeated for all the devices in a json.

Connector name (If you need help with some connector/converter):

Our connector is modbus_connector.py file.

Error traceback (If it was raised): I have experienced two different failures or errors:

Request URL: https://xxxxxxxxxxxxxxxx/api/plugins/rpc/twoway/23c36720-572f-11eb-9c4f-d5534ba62b01 Request Method: POST Status Code: 408 Remote Address: xx.xx.xxx.xxx:xxxx Referrer Policy: strict-origin-when-cross-origin

Request URL: https://xxxxxxxxxxxxxxxx/api/plugins/rpc/twoway/23c36720-572f-11eb-9c4f-d5534ba62b01 Request Method: POST Status Code: 409 Remote Address: xx.xx.xxx.xxx:xxxx Referrer Policy: strict-origin-when-cross-origin

Versions (please complete the following information):

• OS: Windows 10
• Thingsboard IoT Gateway 2.5.5 version
• Python version: 3.7.8

[samson0v]

Hi @adriortega, please, update your Gateway to the newest version via the master branch and let us know if it helps. Thanks for your interest in ThingsBoard IoT Gateway.

[samson0v]

Hi @adriortega, did it help, can we close the issue?