public inbox for bitcoindev@googlegroups.com
 help / color / mirror / Atom feed
From: Mike Hearn <mike@plan99.net>
To: slush <slush@centrum.cz>
Cc: Bitcoin Dev <bitcoin-development@lists.sourceforge.net>
Subject: Re: [Bitcoin-development] Bitcoind-in-background mode for SPV wallets
Date: Thu, 10 Apr 2014 08:38:49 +0200	[thread overview]
Message-ID: <CANEZrP2w2b28qnYd7q=fo=VL0FzVE1R15s5Entuy+fK9x+V8Kg@mail.gmail.com> (raw)
In-Reply-To: <CAJna-Hj1U5cQ22bSXoNB-4ck_urCuS9xCk+iEHsbh+yv17MP7A@mail.gmail.com>

[-- Attachment #1: Type: text/plain, Size: 4651 bytes --]

I tend to agree with slush here - counting the IPs in addr broadcasts often
gives a number like 100,000 vs just 10,000 for actually reachable nodes (or
less). It seems like optimising the NAT tunneling code would help. Starting
by adding more diagnostic stuff to the GUI. STUN support may also help.

The main constraint with home devices is not IMHO their actual power but
rather that a lot of people no longer keep computers switched on all the
time. If you don't do that then spv with bundled Core can't help your
security because the spv wallet would always be syncing from the p2p
network for performance reasons.
On 9 Apr 2014 22:13, "slush" <slush@centrum.cz> wrote:

> I believe there're plenty bitcoind instances running, but they don't have
> configured port forwarding properly.There's uPNP support in bitcoind, but
> it works only on simple setups.
>
> Maybe there're some not yet considered way how to expose these *existing*
> instances to Internet, to strenghten the network. Maybe just self-test
> indicating the node is not reachable from outside (together with short
> howto like in some torrent clients).
>
> These days IPv6 is slowly deploying to server environments, but maybe
> there's some simple way how to bundle ipv6 tunnelling into bitcoind so any
> instance will become ipv6-reachable automatically?
>
> Maybe there're other ideas how to improve current situation without needs
> of reworking the architecture.
>
> Marek
>
>
> On Wed, Apr 9, 2014 at 9:33 PM, Gregory Maxwell <gmaxwell@gmail.com>wrote:
>
>> On Wed, Apr 9, 2014 at 11:58 AM, Justus Ranvier <justusranvier@gmail.com>
>> wrote:
>> > Anyone reading the archives of the list will see about triple the
>> > number of people independently confirming the resource usage problem
>> > than they will see denying it, so I'm not particularly worried.
>>
>> The list has open membership, there is no particular qualification or
>> background required to post here. Optimal use of an information source
>> requires critical reading and understanding the limitations of the
>> medium. Counting comments is usually not a great way to assess
>> technical considerations on an open public forum.  Doubly so because
>> those comments were not actually talking about the same thing I am
>> talking about.
>>
>> Existing implementations are inefficient in many known ways (and, no
>> doubt, some unknown ones). This list is about developing protocol and
>> implementations including improving their efficiency.  When talking
>> about incentives the costs you need to consider are the costs of the
>> best realistic option.  As far as I know there is no doubt from anyone
>> technically experienced that under the current network rules full
>> nodes can be operated with vastly less resources than current
>> implementations use, it's just a question of the relatively modest
>> implementation improvements.
>>
>> When you argue that Bitcoin doesn't have the right incentives (and
>> thus something??) I retort that the actual resource _requirements_ are
>> for the protocol very low. I gave specific example numbers to enable
>> correction or clarification if I've said something wrong or
>> controversial. Pointing out that existing implementations are not that
>> currently as efficient as the underlying requirements and that some
>> large number of users do not like the efficiency of existing
>> implementations doesn't tell me anything I disagree with or didn't
>> already know. Whats being discussed around here contributes to
>> prioritizing improvements over the existing implementations.
>>
>> I hope this clarifies something.
>>
>>
>> ------------------------------------------------------------------------------
>> 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
>>
>
>
>
> ------------------------------------------------------------------------------
> 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
>
>

[-- Attachment #2: Type: text/html, Size: 6057 bytes --]

  parent reply	other threads:[~2014-04-10  6:38 UTC|newest]

Thread overview: 59+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2014-04-09 15:29 [Bitcoin-development] Bitcoind-in-background mode for SPV wallets Wladimir
2014-04-09 15:37 ` Tamas Blummer
2014-04-09 15:41 ` Natanael
2014-04-09 15:54   ` Gregory Maxwell
2014-04-09 16:09     ` Thomas Voegtlin
2014-04-09 19:25       ` Wladimir
2014-04-10  6:04         ` Tamas Blummer
2014-04-10 11:09           ` Wladimir
2014-04-10 11:29             ` Mike Hearn
2014-04-10 11:32             ` Pieter Wuille
2014-04-10 11:43               ` Peter Todd
2014-04-10 11:50               ` Gregory Maxwell
2014-04-10 11:54                 ` Peter Todd
2014-04-10 17:30                   ` Tier Nolan
2014-04-11 16:54                     ` Gregory Maxwell
2014-05-04 21:11                       ` Tier Nolan
2014-04-09 17:31   ` Wladimir
2014-04-09 15:42 ` Brian Hoffman
2014-04-09 15:57   ` Gregory Maxwell
2014-04-09 16:09     ` Tamas Blummer
2014-04-09 15:47       ` Mark Friedenbach
2014-04-09 16:27         ` Tamas Blummer
2014-04-09 17:46           ` Peter Todd
2014-04-09 17:50             ` Tamas Blummer
2014-04-09 18:00               ` Mike Hearn
2014-04-09 18:19                 ` Wladimir
2014-04-09 18:35                   ` Justus Ranvier
2014-04-09 18:46                     ` Wladimir
2014-04-09 18:50                     ` Gregory Maxwell
2014-04-09 18:58                       ` Justus Ranvier
2014-04-09 19:33                         ` Gregory Maxwell
2014-04-09 20:12                           ` slush
2014-04-09 20:31                             ` slush
2014-04-09 20:36                               ` Mark Friedenbach
2014-04-09 21:04                                 ` Gregory Maxwell
2014-04-09 20:37                               ` Wladimir
2014-04-09 20:35                             ` Wladimir
2014-04-09 20:50                               ` slush
2014-04-09 20:55                             ` Laszlo Hanyecz
2014-04-10  6:38                             ` Mike Hearn [this message]
2014-04-10  6:50                               ` Wladimir
2014-04-10  7:09                                 ` Mike Hearn
2014-04-10  9:33                                   ` Peter Todd
2014-04-10  7:10                                 ` Tamas Blummer
2014-04-10  9:17                                   ` Mike Hearn
2014-04-10  9:39                                     ` Tamas Blummer
2014-04-10 10:40                                       ` Mike Hearn
2014-04-10 10:44                                         ` Tamas Blummer
2014-04-10 11:36                                           ` Peter Todd
2014-04-10 11:45                                             ` Mike Hearn
2014-04-10 11:52                                               ` Peter Todd
2014-04-10  9:47                                     ` Peter Todd
2014-04-09 18:04               ` Peter Todd
     [not found]   ` <CA+s+GJBpvqqu=XEojyekx5su+JfYLwz+zsbo8L0=5t6s-_b33w@mail.gmail.com>
2014-04-09 17:35     ` [Bitcoin-development] Fwd: " Wladimir
2014-04-09 16:03 ` [Bitcoin-development] " Peter Todd
2014-04-09 17:33   ` Alex Mizrahi
2014-04-09 17:38     ` Wladimir
2014-04-09 17:38     ` Peter Todd
2014-04-09 18:35 ` Kevin

Reply instructions:

You may reply publicly to this message via plain-text email
using any one of the following methods:

* Save the following mbox file, import it into your mail client,
  and reply-to-all from there: mbox

  Avoid top-posting and favor interleaved quoting:
  https://en.wikipedia.org/wiki/Posting_style#Interleaved_style

* Reply using the --to, --cc, and --in-reply-to
  switches of git-send-email(1):

  git send-email \
    --in-reply-to='CANEZrP2w2b28qnYd7q=fo=VL0FzVE1R15s5Entuy+fK9x+V8Kg@mail.gmail.com' \
    --to=mike@plan99.net \
    --cc=bitcoin-development@lists.sourceforge.net \
    --cc=slush@centrum.cz \
    /path/to/YOUR_REPLY

  https://kernel.org/pub/software/scm/git/docs/git-send-email.html

* If your mail client supports setting the In-Reply-To header
  via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line before the message body.
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox