From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from sog-mx-1.v43.ch3.sourceforge.com ([172.29.43.191] helo=mx.sourceforge.net) by sfs-ml-3.v29.ch3.sourceforge.com with esmtp (Exim 4.76) (envelope-from ) id 1WYIGo-0006yn-Hd for bitcoin-development@lists.sourceforge.net; Thu, 10 Apr 2014 16:56:10 +0000 Received-SPF: pass (sog-mx-1.v43.ch3.sourceforge.com: domain of gmail.com designates 209.85.192.173 as permitted sender) client-ip=209.85.192.173; envelope-from=brianchoffman@gmail.com; helo=mail-pd0-f173.google.com; Received: from mail-pd0-f173.google.com ([209.85.192.173]) by sog-mx-1.v43.ch3.sourceforge.com with esmtps (TLSv1:RC4-SHA:128) (Exim 4.76) id 1WYIGn-0003NT-FA for bitcoin-development@lists.sourceforge.net; Thu, 10 Apr 2014 16:56:10 +0000 Received: by mail-pd0-f173.google.com with SMTP id z10so4110362pdj.4 for ; Thu, 10 Apr 2014 09:56:03 -0700 (PDT) MIME-Version: 1.0 X-Received: by 10.66.161.69 with SMTP id xq5mr20936475pab.62.1397148963562; Thu, 10 Apr 2014 09:56:03 -0700 (PDT) Received: by 10.70.89.237 with HTTP; Thu, 10 Apr 2014 09:56:03 -0700 (PDT) In-Reply-To: References: Date: Thu, 10 Apr 2014 12:56:03 -0400 Message-ID: From: Brian Hoffman To: Ricardo Filipe Content-Type: multipart/alternative; boundary=047d7b6dd002abeca904f6b31706 X-Spam-Score: -0.6 (/) X-Spam-Report: Spam Filtering performed by mx.sourceforge.net. See http://spamassassin.org/tag/ for more details. -0.0 RCVD_IN_DNSWL_NONE RBL: Sender listed at http://www.dnswl.org/, no trust [209.85.192.173 listed in list.dnswl.org] -1.5 SPF_CHECK_PASS SPF reports sender host as permitted sender for sender-domain 0.0 FREEMAIL_FROM Sender email is commonly abused enduser mail provider (brianchoffman[at]gmail.com) -0.0 SPF_PASS SPF: sender matches SPF record 1.0 HTML_MESSAGE BODY: HTML included in message -0.1 DKIM_VALID_AU Message has a valid DKIM or DK signature from author's domain 0.1 DKIM_SIGNED Message has a DKIM or DK signature, not necessarily valid -0.1 DKIM_VALID Message has at least one valid DKIM or DK signature X-Headers-End: 1WYIGn-0003NT-FA Cc: Bitcoin Dev Subject: Re: [Bitcoin-development] Chain pruning X-BeenThere: bitcoin-development@lists.sourceforge.net X-Mailman-Version: 2.1.9 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Thu, 10 Apr 2014 16:56:10 -0000 --047d7b6dd002abeca904f6b31706 Content-Type: text/plain; charset=UTF-8 Okay...will let myself out now ;P On Thu, Apr 10, 2014 at 12:54 PM, Ricardo Filipe wrote: > that's what blockchain pruning is all about :) > > 2014-04-10 17:47 GMT+01:00 Brian Hoffman : > > Looks like only about ~30% disk space savings so I see your point. Is > there > > a critical reason why blocks couldn't be formed into "superblocks" that > are > > chained together and nodes could serve a specific superblock, which > could be > > pieced together from different nodes to get the full blockchain? This > would > > allow participants with limited resources to serve full portions of the > > blockchain rather than limited pieces of the entire blockchain. > > > > > > On Thu, Apr 10, 2014 at 12:28 PM, Mike Hearn wrote: > >> > >> Suggestions always welcome! > >> > >> The main problem with this is that the block chain is mostly random > bytes > >> (hashes, keys) so it doesn't compress that well. It compresses a bit, > but > >> not enough to change the fundamental physics. > >> > >> However, that does not mean the entire chain has to be stored on > expensive > >> rotating platters. I've suggested that in some star trek future where > the > >> chain really is gigantic, it could be stored on tape and spooled off at > high > >> speed. Literally a direct DMA from tape drive to NIC. But we're not > there > >> yet :) > > > > > > > > > ------------------------------------------------------------------------------ > > 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 > > > --047d7b6dd002abeca904f6b31706 Content-Type: text/html; charset=UTF-8 Content-Transfer-Encoding: quoted-printable
Okay...will let myself out now ;P


On Thu, Apr 10, 2014 at 12:54 PM= , Ricardo Filipe <ricardojdfilipe@gmail.com> wrote:<= br>
that's what blockchain pruning is all ab= out :)

2014-04-10 17:47 GMT+01:00 Brian Hoffman <brianchoffman@gmail.com>:
> Looks like only about ~30% disk space savings so I see your point. Is = there
> a critical reason why blocks couldn't be formed into "superbl= ocks" that are
> chained together and nodes could serve a specific superblock, which co= uld be
> pieced together from different nodes to get the full blockchain? This = would
> allow participants with limited resources to serve full portions of th= e
> blockchain rather than limited pieces of the entire blockchain.
>
>
> On Thu, Apr 10, 2014 at 12:28 PM, Mike Hearn <mike@plan99.net> wrote:
>>
>> Suggestions always welcome!
>>
>> The main problem with this is that the block chain is mostly rando= m bytes
>> (hashes, keys) so it doesn't compress that well. It compresses= a bit, but
>> not enough to change the fundamental physics.
>>
>> However, that does not mean the entire chain has to be stored on e= xpensive
>> rotating platters. I've suggested that in some star trek futur= e where the
>> chain really is gigantic, it could be stored on tape and spooled o= ff at high
>> speed. Literally a direct DMA from tape drive to NIC. But we'r= e not there
>> yet :)
>
>
>
> ----------------------------------------------------------------------= --------
> 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-d= evelopment@lists.sourceforge.net
> https://lists.sourceforge.net/lists/listinfo/bitco= in-development
>

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