Ledger

Ledger synchronization

When a ledger is first modified, Device OS initiates a sync right away and start a 5 seconds cooldown timer.

• If the ledger is modified again within the 5 second interval, the interval is started over.
• When the cooldown timer expires, another sync is initiated.
• The maximum delay between when the ledger is modified and when a sync is started is 30 seconds.

A ledger can be modified while the device is offline, and will be synchronized when the device comes back online.

A cloud to device ledger is stored locally in the flash file system on the device. This allows it to be used before cloud connecting, but if you do this, the device will not have received any updates queued in the cloud. If the ledger has not changed since the last synchronization, it will not be transferred again, saving data.