[Bitcoin-development] Bitcoind-in-background mode for SPV wallets

Wladimir laanwj at gmail.com
Thu Apr 10 06:50:55 UTC 2014

On Thu, Apr 10, 2014 at 8:38 AM, Mike Hearn <mike at plan99.net> wrote:

> 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.
I agree that there is a fundamental incompatibility in usage between
wallets and nodes. Wallets need to be online as little as possible, nodes
need to online as much as possible.

However, a full node background process could also be running if the wallet
is not open itself. Ffor example - by running as a system service.

Bitcoin Core's own wallet is also moving to SPV, so this means a general
solution is needed to get people to run a node when the wallet is not

Maybe the node shouldn't be controlled from the wallet at all, it could be
a 'node control' user interface on its own (this is what -disablewallet
does currently). In this case, there is no need for packaging it with a
wallet The only drawback would be that initially, people wouldn't know why
or when to install this, hence my suggestion to pack it with wallets...

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