Edge buffer uploading every 5 min too long

[cdupont]

Several partners were surprised to see data was arriving at the Cloud only every 5min. I think we should reduce the default delay value to something lower, such as 10 sec or 30 sec.

[j-forster]

With the next release, the "synchronization buffer delay" will become part of the UI and can be set on each sensor separately. However, the default will be to not synchronize the sensor so that the users has to enable the sync for each sensor. This way, the user can decide which sensor will be synchronized and what delay/buffer should be used. Besides that, it is up to the cloud to deny/forbid very low delays to reduce the overall workload for the cloud, or to limit the number of syncs per day (per user) etc.

[PaulImison]

Please also check: The updates are repeated. e.g. if sending update 1 per min, then the first update is data point. 1-5, the next update is not 6-10, but 1-10, next update is not 11-15, but 1-15 etc. Check the pointer reset. (Also continues even when no data received)

[cdupont]

Thanks Paul and Johann.

[j-forster]

Changed https://github.com/Waziup/wazigate-edge/commit/1de32669c9754eb1664b8b6c78dd03e32ce52b0e

[cdupont]

@j-forster Could this default be configurable through a environment variable? So we can change it at docker-compose level without recompiling the container.

[cdupont]

Tested, fixed