ethersphere
Implement a "dump" feature to allow backup of data without stop the node
Summary
Currently documentation says that to backup data node should be stopped. This is a bad practice in this context, because each node should stay connect as long as possibile, and this doesn't permit to have frequent backups.
A better option would be to implement a dump feature, to allow to stream or eventually save on files a specific snapshot of the system.
This could also allow to ignore backup of random data from the net, and restrict backups to only keys, pinned data and node state. In this way backups can be optimized to maintain only relevant data to the user.
A reverse feature to import data would allow to restore this kind of data.
Motivation
Current system doesn't permit to have well formed backup keeping online node connections.
Moreover, to have "dump/restore" operations would permit data migration for pinned data from a node to another in a simple way.
Implementation
Additional tools have to be introduced. Moreover local storage have to allow for snapshots on it.
Drawbacks
Nothing.
