Standards (was [BitTorrent] Back to Merkle Hash Trees...)

Justin Cormack justin at
Wed Feb 9 17:57:54 EST 2005

> On Wed, 2005-02-09 at 20:51 +0000, Konstantin 'Kosta' Welke wrote:
> > 
> > On Mon, 7 Feb 2005 22:18:17 +0000 (GMT), Justin Cormack <justin at> wrote:
> > 
> > > 2. Lack of a dont_have_any_more message limits many types of applications
> > > eg caches that need to drop data later. I cant think of any reason not to
> > > add it, even if most clients wont use it (as it is a rare message you could
> > > just send a new bitmap, although that uses more bandwidth).
> > 
> > btw: do any bt caches exist?
> > 
> > It's not beautiful, but wouldnt a workaround for a dont_habe_anymore be to
> > disconnect from the seed, delete some files and reconnect?
> I do this in btslave.  It works fine.  A dont_have message would be
> nice, but it's no big deal to exit and re-enter a torrent.

Its fine if you dont drop stuff often, eg do a big garbage collect every
now and again. It is problematic for some other uses.


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