From: Jeff Garzik <jgarzik@bitpay•com>
To: gabe appleton <gappleto97@gmail•com>
Cc: Bitcoin Dev <bitcoin-development@lists•sourceforge.net>
Subject: Re: [Bitcoin-development] Proposed additional options for pruned nodes
Date: Tue, 12 May 2015 09:05:44 -0700 [thread overview]
Message-ID: <CAJHLa0O5OxaX5g3u=dnCY6Lz_gK3QZgQEPNcWNVRD4JziwAmvg@mail.gmail.com> (raw)
In-Reply-To: <CANJO25JTtfmfsOQYOzJeksJn3CoKE3W8iLGsRko-_xd4XhB3ZA@mail.gmail.com>
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A general assumption is that you will have a few archive nodes with the
full blockchain, and a majority of nodes are pruned, able to serve only the
tail of the chains.
On Tue, May 12, 2015 at 8:26 AM, gabe appleton <gappleto97@gmail•com> wrote:
> Hi,
>
> There's been a lot of talk in the rest of the community about how the 20MB
> step would increase storage needs, and that switching to pruned nodes
> (partially) would reduce network security. I think I may have a solution.
>
> There could be a hybrid option in nodes. Selecting this would do the
> following:
> Flip the --no-wallet toggle
> Select a section of the blockchain to store fully (percentage based,
> possibly on hash % sections?)
> Begin pruning all sections not included in 2
> The idea is that you can implement it similar to how a Koorde is done, in
> that the network will decide which sections it retrieves. So if the user
> prompts it to store 50% of the blockchain, it would look at its peers, and
> at their peers (if secure), and choose the least-occurring options from
> them.
>
> This would allow them to continue validating all transactions, and still
> store a full copy, just distributed among many nodes. It should overall
> have little impact on security (unless I'm mistaken), and it would
> significantly reduce storage needs on a node.
>
> It would also allow for a retroactive --max-size flag, where it will prune
> until it is at the specified size, and continue to prune over time, while
> keeping to the sections defined by the network.
>
> What sort of side effects or network vulnerabilities would this introduce?
> I know some said it wouldn't be Sybil resistant, but how would this be less
> so than a fully pruned node?
>
>
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>
--
Jeff Garzik
Bitcoin core developer and open source evangelist
BitPay, Inc. https://bitpay.com/
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next prev parent reply other threads:[~2015-05-12 16:06 UTC|newest]
Thread overview: 19+ messages / expand[flat|nested] mbox.gz Atom feed top
[not found] <CANJO25J1WRHtfQLVXUB2s_sjj39pTPWmixAcXNJ3t-5os8RPmQ@mail.gmail.com>
2015-05-12 15:26 ` gabe appleton
2015-05-12 16:05 ` Jeff Garzik [this message]
2015-05-12 16:56 ` gabe appleton
2015-05-12 17:16 ` Peter Todd
2015-05-12 18:23 ` Tier Nolan
2015-05-12 19:03 ` Gregory Maxwell
2015-05-12 19:24 ` gabe appleton
2015-05-12 19:38 ` Jeff Garzik
2015-05-12 19:43 ` gabe appleton
2015-05-12 21:30 ` [Bitcoin-development] [Bulk] " gb
2015-05-12 20:02 ` [Bitcoin-development] " Gregory Maxwell
2015-05-12 20:10 ` Jeff Garzik
2015-05-12 20:41 ` gabe appleton
2015-05-12 20:47 ` Gregory Maxwell
[not found] ` <CAFVoEQTdmCSRAy3u26q5oHdfvFEytZDBfQb_fs_qttK15fiRmg@mail.gmail.com>
[not found] ` <CAJHLa0OxxxiVd3JOp8SDvbF8dHj6KHdUNGb9L_GvTe93z3Z8mg@mail.gmail.com>
[not found] ` <CAJHLa0MYSpVBD4VE65LVbADb2daOvE=N83G8F_zDSHy3AQ5DAQ@mail.gmail.com>
2015-05-12 21:17 ` [Bitcoin-development] Fwd: " Adam Weiss
2015-05-12 22:00 ` [Bitcoin-development] " Tier Nolan
2015-05-12 22:09 ` gabe appleton
2015-05-13 5:19 ` Daniel Kraft
2015-05-13 9:34 ` Tier Nolan
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