I'm moving this design document to a gist so that I can integrate
changes as they come up:
One thing that I think is an important improvement over my initial
idea is that the bloom filters don't need to be kept around and built
up, they can just be one-shot and clear any matching entries from the
set of known-knowns upon arrival -- provided a node is careful to
ensure the txes it wants to forget are known-known-known (which isn't
as bad as it sounds) to the peer it's telling it's forgetting them
when the forget-filter arrives.

On Thu, Jul 17, 2014 at 3:46 PM, Gavin Andresen <gavinandre...@gmail.com> wrote:
> A couple of half-baked thoughts:
> On Thu, Jul 17, 2014 at 5:35 PM, Kaz Wesley <kezi...@gmail.com> wrote:
>> If there's support for this proposal, I can begin working on the specific
>> implementation details, such as the bloom filters, message format, and
>> capability advertisment, and draft a BIP once I have a concrete proposal for
>> what those would look like and a corresponding precise cost/benefit analysis.
> I'd encourage you to code up a prototype first (or at the same time), in 
> whatever programming language / networking library you're most familiar with.
> Maybe not even using the existing p2p protocol; there could be a mining-only 
> very-fast-block-propagation network separate from the existing p2p network.
> Combining your optimizations with "broadcast as many near-miss blocks as 
> bandwidth will allow" on a mining backbone network should allow insanely fast 
> propagation of most newly solved blocks.
> --
> --
> Gavin Andresen

Thanks Gavin, I am planning on working out the design details as I
work on a prototype. I have the beginnings of a previous shot at
implementing this in bitcoind to start from but my new design has some
important improvements to add to that.


Want fast and easy access to all the code in your enterprise? Index and
search up to 200,000 lines of code with a free copy of Black Duck
Code Sight - the same software that powers the world's largest code
search on Ohloh, the Black Duck Open Hub! Try it now.
Bitcoin-development mailing list

Reply via email to