[BUG] Use rest connector error

[klonhj2015]

Describe the bug
I use the master version to build a version. And I use the rest connector, but when I run the gateway, it encounted an error.

Connector name (If bug in the some connector):
[ REST Connector]

Error traceback (If available):
Traceback (most recent call last):
File "/Users/hongquanzhu/Documents/Github/thingsboard-gateway/dev-tb-gw/lib/python3.7/site-packages/thingsboard_gateway-2.9-py3.7.egg/thingsboard_gateway/connectors/rest/rest_connector.py", line 150, in run
self.__run_server()
File "/Users/hongquanzhu/Documents/Github/thingsboard-gateway/dev-tb-gw/lib/python3.7/site-packages/thingsboard_gateway-2.9-py3.7.egg/thingsboard_gateway/connectors/rest/rest_connector.py", line 144, in __run_server
ssl_context=ssl_context)
File "/Users/hongquanzhu/Documents/Github/thingsboard-gateway/dev-tb-gw/lib/python3.7/site-packages/aiohttp/web.py", line 514, in run_app
loop.run_until_complete(main_task)
File "/usr/local/Cellar/python/3.7.7/Frameworks/Python.framework/Versions/3.7/lib/python3.7/asyncio/base_events.py", line 587, in run_until_complete
return future.result()
File "/Users/hongquanzhu/Documents/Github/thingsboard-gateway/dev-tb-gw/lib/python3.7/site-packages/aiohttp/web.py", line 321, in _run_app
await runner.setup()
File "/Users/hongquanzhu/Documents/Github/thingsboard-gateway/dev-tb-gw/lib/python3.7/site-packages/aiohttp/web_runner.py", line 279, in setup
self._server = await self._make_server()
File "/Users/hongquanzhu/Documents/Github/thingsboard-gateway/dev-tb-gw/lib/python3.7/site-packages/aiohttp/web_runner.py", line 373, in _make_server
self._app._set_loop(loop)
File "/Users/hongquanzhu/Documents/Github/thingsboard-gateway/dev-tb-gw/lib/python3.7/site-packages/aiohttp/web_app.py", line 224, in _set_loop
"web.Application instance initialized with different loop"
RuntimeError: web.Application instance initialized with different loop

Versions (please complete the following information):

• OS: [macos]
• Thingsboard IoT Gateway version [master]
• Python version[3.7]

[klonhj2015]

If I checkout version 2.7, the rest server is running with flask, that seems ok. The version of master seems to use aiohttp, error.

[samson0v]

Hi @klonhj2015, send, please, your REST config file.

Thanks for your interest in ThingsBoard IoT Gateway.

[klonhj2015]

This is my config file.
{
"host": "0.0.0.0",
"port": "35000",
"SSL": false,
"mapping":[
{
"endpoint": "/aiAlarm",
"HTTPMethods": [
"POST"
],
"security": {
"type": "anonymous"
},
"converter": {
"type": "json",
"deviceNameExpression": "${name}",
"deviceTypeExpression": "default",
"timeseries": [
{
"type": "double",
"key": "combcsp0",
"value": "${values.combcsp0}"
},
{
"type": "double",
"key": "pactcsp0",
"value": "${values.pactcsp0}"
}
]
}
}
]
}

[samson0v]

@klonhj2015 are you running Gateway under Docker container?

[klonhj2015]

@klonhj2015 are you running Gateway under Docker container?

No, I run gateway in a python virtual env

[samson0v]

@klonhj2015 Send, pls, your tb_gateway.yaml config file

[klonhj2015]

thingsboard:
host: 127.0.0.1
port: 11883
remoteShell: false
remoteConfiguration: false
statsSendPeriodInSeconds: 3600
checkConnectorsConfigurationInSeconds: 60
security:
accessToken: test
qos: 1
storage:
type: memory
read_records_count: 100
max_records_count: 100000

connectors:

• name: HTTP RestAPI Connector
  type: rest
  configuration: rest.json

[samson0v]

@klonhj2015 can you run the Gateway on python 3.9 and let us know if it helps?
We will fix the bug if it helps.

[klonhj2015]

It works! I change the python version to 3.0. It seems all done. Thanks.

[klonhj2015]

Sorry, the first time starting seems ok, but after i restart the gw, the same error.

[Congregator]

Experiencing the same issue with the REST connector on both native and docker installations of the current release version 2.9. Running Python 3.9 on Ubuntu Server 18.04. I think the issue might be a change in an external dependency (aiohttp) as new installations of older gateway versions (2.8 and 2.7) show the same issue.