On dinsdag 22 maart 2016 11:31:39 CET Tomaz Canabrava wrote: > On Tue, Mar 22, 2016 at 11:16 AM, Klaas Freitag <frei...@owncloud.com> > > wrote: > > On 21.03.2016 23:58, Tomaz Canabrava wrote: > > > > > > > > Hi, > > > >> I can work on a proof of concept for large text files and virtual > >> machine images (wich would already be a win-situation for some users) > >> and then focus on *some* of the hard to sync files (like powerpoint > >> presentations) and see what I could get. > > > > I do not think you should consider the file type at all. Just try to > > implement the zsync based approach I'd say, and just for the chunked > > upload mode. > > > > Raw steps: > > > > 1. on the client, chop the file in chunks and create a list: > > Number of chunk start-at-byte end-of-byte Checksum? > > > > 2. send this list to the server to get the servers checksums > > 3. While waiting on the server list of checksums, calc the client > > checksums > > 4. compare the lists once the both are ready and decide which need upload > > 5. upload the chunks that changed. > > > > The trick is in the cutting of the chunks. The amount of chunks that do > > not change can be increased by picking clever boundaries. > > > > This project requires both client and server work. > > > > Please do the server work based on what is described in the blog series > > about the new chunking API, there is a branch with basic implementation of > > that here: > > https://github.com/owncloud/core/pull/20118 > > > > Makes sense? > > Makes sense. > > I have a university test today night so I don't know what time I'll get > back home, but I'm already installing and compilling owncloud from source > here to poke around things. > > What blog series about the new chunking api you refer? owncloud blgo or > rsync's?
Here's pt 2 of that series he mentioned :D > Tomaz > > > regards, > > > > Klaas > > > > > > > > > > > > _______________________________________________ > > Devel mailing list > > Devel@owncloud.org > > http://mailman.owncloud.org/mailman/listinfo/devel -- Disclaimer: Everything I do and say is based on my view of the world today. I am not responsible for changes in the world, nor my view on it. Everything I say is meant in a positive and friendly way, unless explicitly stated otherwise. find me on blog.jospoortvliet.com _______________________________________________ Devel mailing list Devel@owncloud.org http://mailman.owncloud.org/mailman/listinfo/devel
