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From: Mike Hearn <mike@plan99.net>
To: Pieter Wuille <pieter.wuille@gmail.com>
Cc: Bitcoin Dev <bitcoin-development@lists.sourceforge.net>
Subject: [Bitcoin-development] Chain pruning
Date: Thu, 10 Apr 2014 13:37:58 +0200	[thread overview]
Message-ID: <CANEZrP04O7EqB=TqyTiC7O1K2A9R0nKJ_ssANHKg=Byum8-LtA@mail.gmail.com> (raw)

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Chain pruning is probably a separate thread, changing subject.


> Reason is that the actual blocks available are likely to change frequently
> (if
> you keep the last week of blocks


I doubt anyone would specify blocks to keep in terms of time. More likely
it'd be in terms of megabytes, as that's the actual resource constraint on
nodes. Given a block size average it's easy to go from megabytes to
num_blocks, so I had imagined it'd be a new addr field that specifies how
many blocks from the chain head are stored. Then you'd connect to some
nodes and if they indicate their chain head - num_blocks_stored is higher
than your current chain height, you'd do a getaddr and go looking for nodes
that are storing far enough back.

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             reply	other threads:[~2014-04-10 11:38 UTC|newest]

Thread overview: 21+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2014-04-10 11:37 Mike Hearn [this message]
2014-04-10 11:57 ` [Bitcoin-development] Chain pruning Wladimir
2014-04-10 12:10   ` Gregory Maxwell
2014-04-10 14:19     ` Wladimir
2014-04-10 16:23       ` Brian Hoffman
2014-04-10 16:28         ` Mike Hearn
2014-04-10 16:47           ` Brian Hoffman
2014-04-10 16:54             ` Ricardo Filipe
2014-04-10 16:56               ` Brian Hoffman
2014-04-10 16:59             ` Pieter Wuille
2014-04-10 17:06               ` Brian Hoffman
2014-04-10 18:19               ` Paul Rabahy
2014-04-10 18:32                 ` Pieter Wuille
2014-04-10 20:12                   ` Tier Nolan
2014-04-10 20:29                     ` Pieter Wuille
2014-04-10 19:36                 ` Mark Friedenbach
2014-04-10 21:34               ` Jesus Cea
2014-04-10 22:15                 ` Mark Friedenbach
2014-04-10 22:24                   ` Jesus Cea
2014-04-10 22:33                     ` Gregory Maxwell
2014-04-10 16:52           ` Ricardo Filipe

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