[BitTorrent] BT2 & hash trees

Gregorio Roper gregorio at gmx.li
Fri Aug 20 15:13:41 EDT 2004


Mirco Romanato wrote:
> My best guest is that the chunks size for files can be fixed to 
> something like 256 or 512 KB (because BT2 is about trasmitting big files).
> I think a .torrent2 file could include all the file's hashes 
> (SHA1/TTH/ed2k/SHATreehash), then the clients will ask for the hash tree 
> of a file to another client, when will ask for the first chunk of the file.
> 
> This would reduce the need to trasfer all the data in the same time (for 
> multiple files torrent) and the load for any single source.

Don't fix things that don't need to be fixed. I do not like fixed chunk sizes 
(or rather piece lengths) because it doesn't make the implementation easier and 
it reduces flexibility of the protocol.

mfg
gregorio


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