On Thu, Apr 10, 2014 at 10:30 AM, Tier Nolan <tier.no...@gmail.com> wrote: > Error correction is an interesting suggestion.
Though I mentioned it, it was in jest— I think right now it would be an over-design at least for the basic protocol. Also, storing 'random' blocks has some locality problems, when verifying blocks you need to obtain them contiguously, and so we can take advantage of the locality of reference. For the non-error-coded case I believe nodes with random spans of blocks works out asymptotically to the same failure rates as random. One thing that I like to point out is that there is absolutely no need for the entire network to use the same p2p protocol. Diversity here would be very good. I think it would be really good for someone to have an alternative p2p protocol using these techniques even though I think they aren't yet compelling enough to be table stakes in the basic protocol. There are some very helpful things you can do with forward error correction for faster and more efficient block relaying too: https://en.bitcoin.it/wiki/User:Gmaxwell/block_network_coding (The conversation Peter Todd was referring to was one where I was pointing out that with suitable error coding you also get an anti-censorship effect where its very difficult to provide part of the data without potentially providing all of it) > If there was 10000 nodes and each stored 0.1% of the blocks, at random, then > the odds of a block not being stored is 45 in a million. I think in the network we have today and for the foreseeable future we can reasonably count on there being a reasonable number of nodes that store all the blocks... quite likely not enough to satisfy the historical block demand from the network alone, but easily enough to supply blocks that have otherwise gone missing. ------------------------------------------------------------------------------ Put Bad Developers to Shame Dominate Development with Jenkins Continuous Integration Continuously Automate Build, Test & Deployment Start a new project now. Try Jenkins in the cloud. http://p.sf.net/sfu/13600_Cloudbees _______________________________________________ Bitcoin-development mailing list Bitcoin-development@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/bitcoin-development
