Determine DB is synced and up to date

[saurabhabh]

I am sharing my hyper db with multiple writers (authorizing them allowing live replication). Is there an easy way / api to determine if a writer which has been offline is synced and has all the updated data written by other writers ?

[thekevinbrown]

You could have each of the clients publish their own HyperDB of their sync status, and give the owner of the original HyperDB access to these feeds so it can display that information as it sees fit. Would that work?

[emilbayes]

There is theoretically a way that I think is closer to what you're asking, but I'm unsure of the API. When you come online again, peers should share the newest merkle proof that they have, and once all messages until that newest proof have been fetch, you know that you are in sync. Maybe @mafintosh knows how this is done in practise?