Changing the polling interval is not persistent

[italovalcy]

Hi guys,

If you change the polling interval and restart kytos, the change is lost.

Steps to reproduce:

1. Chante the polling interval on of_lldp:

$curl -X POST -d '{"polling_time": 1}' -H 'Content-type: application/json'  http://localhost:8181/api/kytos/of_lldp/v1/polling_time

2. Check if the polling interval was changed:

$ curl -s  http://localhost:8181/api/kytos/of_lldp/v1/polling_time
{"polling_time":1}

3. Restart kytos:

pkill kytosd
kytosd

4. Check the polling interval again

$ curl -s  http://localhost:8181/api/kytos/of_lldp/v1/polling_time

Expected behavior: the polling interval should be the same previously configured through the API.

Actual behavior: the polling interval falls back to the default value

[cmagnobarbosa]

Today, this modification is not persistent by design, the default value for polling_time can be changed in setting.py file. But I think we can discuss whether that behavior needs to be changed.

[italovalcy]

Hi Carlos, Thank you for the feedback!! If that is by design, no problem you can go ahead and close the issue. However, in my opinion, either the API to change this value should be better documented to make it explicit that it will not be saved or it should be persistent.