[Bitcoin-development] Why are we bleeding nodes?

Jeff Garzik jgarzik at bitpay.com
Tue Apr 8 03:44:14 UTC 2014

Being Mr. Torrent, I've held open the "80% serious" suggestion to
simply refuse to serve blocks older than X (3 months?).

That forces download by other means (presumably torrent).

I do not feel it is productive for any nodes on the network to waste
time/bandwidth/etc. serving static, ancient data.  There remain, of
course, issues of older nodes and "getting the word out" that prevents
this switch from being flipped on tomorrow.

On Mon, Apr 7, 2014 at 2:49 PM, Gregory Maxwell <gmaxwell at gmail.com> wrote:
> On Mon, Apr 7, 2014 at 11:35 AM, Tamas Blummer <tamas at bitsofproof.com> wrote:
>> BTW, did we already agree on the service bits for an archive node?
> I'm still very concerned that a binary archive bit will cause extreme
> load hot-spotting and the kind of binary "Use lots of resources YES or
> NO" I think we're currently suffering some from, but at that point
> enshrined in the protocol.
> It would be much better to extend the addr messages so that nodes can
> indicate a range or two of blocks that they're serving, so that all
> nodes can contribute fractionally according to their means. E.g. if
> you want to offer up 8 GB of distributed storage and contribute to the
> availability of the blockchain,  without having to swollow the whole
> 20, 30, 40 ... gigabyte pill.
> Already we need that kind of distributed storage for the most recent
> blocks to prevent extreme bandwidth load on archives, so extending it
> to arbitrary ranges is only more complicated because there is
> currently no room to signal it.
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Jeff Garzik
Bitcoin core developer and open source evangelist
BitPay, Inc.      https://bitpay.com/

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