On Thu, Aug 6, 2015 at 6:17 PM, Tom Harding via bitcoin-dev <bitcoin-dev@lists.linuxfoundation.org> wrote: > - Will the relay network at least validate block version numbers in the > future?
It already validates block version numbers. It only relays valid transactions. Although, the block relaying itself is explicitly "unvalidated" and the software client can only usefully be used with a mempool maintaining full node (otherwise it doesn't provide much value, because the node must wait to validate the things). ... but that doesn't actually mean no validation at all is performed, many stateless checks are performed. On Thu, Aug 6, 2015 at 5:16 PM, Sergio Demian Lerner via bitcoin-dev <bitcoin-dev@lists.linuxfoundation.org> wrote: > Is there any up to date documentation about TheBlueMatt relay network > including what kind of block compression it is currently doing? (apart from > the source code) I don't know if Matt has an extensive writeup. But the basic optimization it performs is trivial. I wouldn't call it compression, though it does have some analog to RTP "header compression". All it does is relay transactions verified by a local node and keeps a FIFO of the relayed transactions in both directions, which is synchronous on each side. When a block is recieved on either side, it replaces transactions with their indexes in the FIFO and relays it along. Transactions not in the fifo are escaped and sent whole. On the other side the block is reconstructed using the stored data and handed to the node (where the preforwarded transactions would have also been pre-validated). There is some more than basic elaboration for resource management (e.g. multiple queues for different transaction sizes)-- and more recently using block templates to learn transaction priority be a bit more immune to spam attacks, but its fairly simple. Much better could be done about intelligently managing the queues or efficiently transmitting the membership sets, etc. It's just basically the simplest thing that isn't completely stupid. _______________________________________________ bitcoin-dev mailing list bitcoin-dev@lists.linuxfoundation.org https://lists.linuxfoundation.org/mailman/listinfo/bitcoin-dev
