Re: [bitcoin-dev] [Bitcoin-development] Reusable payment codes

2015-10-23 Thread Justus Ranvier via bitcoin-dev 
On 22/10/15 20:22, Peter Todd wrote:
> FWIW multi-push OP_RETURN outputs will be standard in v0.12.0:
> 
> https://github.com/bitcoin/bitcoin/pull/6424
> 

As I said before, once the prerequisites for a better notification
method are usable in the network, I'd love to define a version 2 payment
code that uses such an better notification system.

In the meantime. every block mined shows very consistent 70% address reuse.

Anything that can bring that number down is a good thing. Even if
version 1 payment codes could only potentially drop that number from 70%
to 30% instead of to 0%, they'd still be worth using while we wait for
version 2.



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Re: [bitcoin-dev] [patch] Switching Bitcoin Core to sqlite db

2015-10-23 Thread Tom Zander via bitcoin-dev 
On Thursday 22 Oct 2015 17:26:42 Jeff Garzik via bitcoin-dev wrote:
> It was noted that leveldb is unmaintained, and this is part of researching
> alternatives that are maintained and reliable.

Apart from it being unmaintained, any links to what are problems with levelDB?

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Re: [bitcoin-dev] Mailing List Moderation Now Active.

2015-10-23 Thread Mike Hearn via bitcoin-dev 
>
> - Posts must concern the near-term development of the bitcoin core
>   code or bitcoin protocol.
>

Are block size discussions considered acceptable, then?
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Re: [bitcoin-dev] Memory leaks?

2015-10-23 Thread Rusty Russell via bitcoin-dev 
Btc Drak via bitcoin-dev  writes:
> I think this thread has gotten to the stage where it should be moved
> to an issue on Github and not continue to CC the bitcoin-dev list (or
> any other list tbh).

Agreed.  I couldn't see an issue, so I've opened one.  Let's track this
there, please.

https://github.com/bitcoin/bitcoin/issues/6876

Cheers,
Rusty.
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Re: [bitcoin-dev] [patch] Switching Bitcoin Core to sqlite db

2015-10-23 Thread Jonas Schnelli via bitcoin-dev 
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> Here is the beginnings of an implementation to replace leveldb
> with sqlite: https://github.com/jgarzik/bitcoin/tree/2015_sqlite
> 
> It builds, but still needs work before passing tests.

Nice work!

Although not sure if we should focus directly on sqlite4 (could be
optional with a configure flag and a subtree [until stable], sqlite3
supported over depends).

Also i personally would recommend to not implement it as a
replacement, instead, support multiple backends (wrapper header /
different wrapper implementations [leveldb / sqlite3 / sqlite4]). But
– agreed – should not be the focus, but a nice additional flexibility
if it not require much more work.
And – in theory – multiple database back-ends would allow migration.

Before investigating to deep, i think we need a dbwrapper bench tool
that represents our needs and our style how we hit the database.
Gavins recently added bench target / bench environment could be used
for that.

/jonas
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