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 46 2019-08-09T05:15:00  <bitcoin-git> [bitcoin] fanquake opened pull request #16573: build: disable building libsecp256k1 benchmarks (master...disable-secp256k1-benchmarks) https://github.com/bitcoin/bitcoin/pull/16573
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140 2019-08-09T11:23:23  <bitcoin-git> [bitcoin] laanwj opened pull request #16574: doc: Add historical release notes for 0.18.1 (master...2019_08_relnot_0_18_1) https://github.com/bitcoin/bitcoin/pull/16574
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146 2019-08-09T12:11:17  <jonasschnelli> Is there a clever way to access private members from a boost unit test?
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148 2019-08-09T12:16:04  <jonasschnelli> nm, ... going to try a friendly test struct
149 2019-08-09T12:22:51  <emilengler> You could use a dirty pointer trick
150 2019-08-09T12:23:19  <jonasschnelli> Yes. Or that.
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164 2019-08-09T13:19:47  <bitcoin-git> [bitcoin] fanquake pushed 2 commits to master: https://github.com/bitcoin/bitcoin/compare/e5fdda68c6d2...32776276ef07
165 2019-08-09T13:19:48  <bitcoin-git> bitcoin/master 61c5c64 Wladimir J. van der Laan: doc: Add historical release notes for 0.18.1
166 2019-08-09T13:19:48  <bitcoin-git> bitcoin/master 3277627 fanquake: Merge #16574: doc: Add historical release notes for 0.18.1
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169 2019-08-09T13:20:57  <bitcoin-git> [bitcoin] fanquake merged pull request #16574: doc: Add historical release notes for 0.18.1 (master...2019_08_relnot_0_18_1) https://github.com/bitcoin/bitcoin/pull/16574
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177 2019-08-09T13:49:19  <bitcoin-git> [bitcoin] MarcoFalke pushed 2 commits to master: https://github.com/bitcoin/bitcoin/compare/32776276ef07...9ab9d6356938
178 2019-08-09T13:49:19  <bitcoin-git> bitcoin/master b7b9f6e Antoine Riard: Remove p2pEnabled from Chain interface
179 2019-08-09T13:49:20  <bitcoin-git> bitcoin/master 9ab9d63 MarcoFalke: Merge #16503: Remove p2pEnabled from Chain interface
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182 2019-08-09T13:50:13  <bitcoin-git> [bitcoin] MarcoFalke merged pull request #16503: Remove p2pEnabled from Chain interface (master...2019-07-remove-p2p-chain) https://github.com/bitcoin/bitcoin/pull/16503
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191 2019-08-09T14:36:42  <BlueMatt> hm, looks like the only dnsseeds resolvable over v6 are mine, jonasschnelli's and emzy's :(
192 2019-08-09T14:36:57  <emzy> :(
193 2019-08-09T14:37:10  <BlueMatt> sipa petertodd, cdecker, luke-jr and provoostenator need to fix their shitz
194 2019-08-09T14:37:29  <jonasschnelli> glad I can claim I did my homework... :)
195 2019-08-09T14:37:51  <BlueMatt> heh, indeed
196 2019-08-09T14:38:03  <emzy> ipv4 is only legacy. v6 is the Internet :)
197 2019-08-09T14:40:08  <provoostenator> TIL mine crawls IPv6 diligently, but can't reached that way :-)
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216 2019-08-09T15:10:40  <BlueMatt> right :) and there are seriously quite a few v6-only isps in the world these days
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222 2019-08-09T15:38:35  <provoostenator> Working on a solution, but the rabbit hole goes deep...
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231 2019-08-09T16:00:05  <sipa> BlueMatt: $ dig -t AAAA seed.bitcoin.sipa.be
232 2019-08-09T16:00:07  <sipa> works
233 2019-08-09T16:01:59  <BlueMatt> sipa: the sipa.be ns servers dont have v6 entries
234 2019-08-09T16:02:05  <BlueMatt> ie the ulyssis.org ones
235 2019-08-09T16:02:14  <BlueMatt> you want dig -6 +trace seed.bitcoin.sipa.be aaaa
236 2019-08-09T16:02:19  <sipa> ah
237 2019-08-09T16:02:52  <sipa> yup
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254 2019-08-09T16:54:51  <achow101> provoostenator: After actually attempting to make all of the commits in #16341 compile with the whole move instead of copy thing, I don't think it will make it any easier to review, actually probably harder. IMO Having to introduce temporary functions and changes everywhere only to remove them a few commits later makes it way harder to review as some commits basically have no effect on the final product
255 2019-08-09T16:54:55  <gribble> https://github.com/bitcoin/bitcoin/issues/16341 | Introduce ScriptPubKeyMan interface and use it for key and script management (aka wallet boxes) by achow101 · Pull Request #16341 · bitcoin/bitcoin · GitHub
256 2019-08-09T16:56:15  <achow101> I ended up having to introduce several temp functions to expose some internals of LegacyScriptPubKeyMan which resulted in a bunch of changes to CWallet that were basically then removed in the subsequent commit. Having to keep track of all of these temp things and then removing them and restoring the correct behavior is far more work than it's worth IMO
257 2019-08-09T16:56:31  <achow101> so I'm not going to continue doing that
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263 2019-08-09T17:00:25  <provoostenator> That sounds painful indeed
264 2019-08-09T17:00:35  <provoostenator> Can you push a temp branch somewhere though?
265 2019-08-09T17:00:58  <provoostenator> Either way, it was worth watching the stream the Wednesday just to see you try :-)
266 2019-08-09T17:01:20  <gleb> Public bitcoin nodes use about 1200 ASNs. 20 of those ASNs represent 50% of the nodes, and just 3 ASNs represent 25%. This means that suggested ASN-based bucketing bias would make more (potentially, mission-critical) connections  to those tiny unpopular ASNs than it is today. Is this well-understood? Is this the effect we want?  I'm not sure.
267 2019-08-09T17:03:15  <provoostenator> BlueMatt: the good news is, this works now: dig -6 -t AAAA seed.bitcoin.sprovoost.nl
268 2019-08-09T17:03:35  <provoostenator> The bad news is that I probably messed up the DNS for my entire domain in the process, so will clean that up now :-(
269 2019-08-09T17:03:56  <gleb> The benefit from ASN bucketing is clear from the standpoint of a single node, but for the network overall I dunno. Should we additionally enforce everybody connecting to a random node from top-3 ASNs?
270 2019-08-09T17:05:39  <sipa> gleb: i'm not sure, but maybe it helps to look at it from the other direction: it's expected that a huge number of nodes right now are on large providers (AWS, large VPS providers, ...); biasing by ASN would significantly reduce the number of connections to those in favor of others, but I think that's desirable
271 2019-08-09T17:06:13  <sipa> having 100s of nodes on AWS doesn't actually add much partition resistance from the perspective of someone connecting to it
272 2019-08-09T17:09:17  <BlueMatt> gleb: indeed, what sipa said...last I looked the vast majority of nodes were on a few providers - aws, digitalocean, hertzner and such
273 2019-08-09T17:09:21  <achow101> provoostenator: https://github.com/achow101/bitcoin/tree/wallet-boxes-2 it's currently broken as I didn't actually finish it
274 2019-08-09T17:09:34  <BlueMatt> connecting only to those is, thus, likely not an uncommon case
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276 2019-08-09T17:09:37  <BlueMatt> and is clearly useless
277 2019-08-09T17:10:07  <sipa> an orthogonal idea may be to have 1 or 2 additional connections within your local network/ASN
278 2019-08-09T17:10:34  <BlueMatt> I dont know how much "few nodes on an asn" correlates with "small isp in the middle of nowhere which doesn't want to serve a lot of traffic", it probably correlates a bit but I'd presume it correlates more with "residential isp with few hosted nodes"
279 2019-08-09T17:10:41  <BlueMatt> right, likely want that, too
280 2019-08-09T17:10:52  <BlueMatt> maybe a third and fourth blocks-only connection or so to local asn
281 2019-08-09T17:11:26  <gleb> Now it's very possible to connect to only those, which is obviously bad. I'm just saying that ASN bucketing might result in connecting to ONLY pocket vulnerable ISPs
282 2019-08-09T17:12:08  <gleb> So if the cost of partition is bribing, I think having 7 pocket ISPs + AWS is in this case better than 8 pocket ISPs :)
283 2019-08-09T17:12:21  <sipa> what is a pocket ISP?
284 2019-08-09T17:12:41  <gleb> something unpopular and easy to influence
285 2019-08-09T17:13:00  <gleb> I might be missing the threat model here
286 2019-08-09T17:13:22  <sipa> actually, the rule "at most one outgoing connection per ASN" isn't quite the same as "connections are uniformly sampled over all ASNs"; larger networks are still more likely to reason connections - just not more than one per outgoing peer
287 2019-08-09T17:14:38  <sipa> s/reason/receive/ no idea how i made that typo
288 2019-08-09T17:14:41  * sipa drinks coffee
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290 2019-08-09T17:15:17  <gleb> Well, that's partially what i'm asking about. I thought the current idea is uniformly random  sample over all ASNs, and I questioned this idea.
291 2019-08-09T17:15:38  <sipa> no, clearly an ASN with no known peers won't get any connections :)
292 2019-08-09T17:16:25  <sipa> the outgoing connection logic just randomly picks a known peer (with some biases already, like favoring port 8333), and then there is a rejection sampling which throws away results within a "group" we already have an outgoing connection to
293 2019-08-09T17:16:32  <gleb> I just thought of it this way: take all ASNs you know peers from, sample 8 unique ones, connect to peers from those 8
294 2019-08-09T17:16:52  <gleb> But I guess we will sample peers first, which would result in connecting to AWS at least once anyways.
295 2019-08-09T17:17:00  <sipa> right
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297 2019-08-09T17:18:06  <gleb> Okay, I'll see if there's a good place in the code or PR I can document this observation, because for me it took a while to understand it.
298 2019-08-09T17:18:41  <sipa> the suggestion is to change the definition of groups to be ASNs
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300 2019-08-09T17:23:28  <sipa> gleb: https://github.com/bitcoin/bitcoin/blob/v0.18.1/src/net.cpp#L1763L1808
301 2019-08-09T17:23:35  <sipa> that's the outgoing connection peer selection logic
302 2019-08-09T17:23:44  <sipa> it's fairly well documented
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304 2019-08-09T17:27:12  <gleb> I was more worried that if this code is changed we might end up with uniform distribution across all asns due to this new bucket logic
305 2019-08-09T17:27:26  <gleb> "If changing bucketing code again, don't shoot in your leg"
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307 2019-08-09T17:28:10  <sipa> if we feel the bias towards small asns is too strong as a result of this, the policy could also be permitting two connections to large asns
308 2019-08-09T17:28:26  <sipa> or to treat large asns as multiple groups
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310 2019-08-09T17:32:29  <gleb> Now that you mitigated my misunderstanding I think it's fine since we'll very likely to have one connection to large asns and I don't see a huge benefit in having 2 instead of 1
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313 2019-08-09T17:56:51  <provoostenator> sipa petertodd, cdecker, luke-jr: to make my seed visible to IPv6-only nodes, I had to do two things:
314 2019-08-09T17:57:20  <provoostenator> 1. add an AAAA record from seed.bitcoin.sprovoost.nl. to the IPv6 address of the seed
315 2019-08-09T17:58:06  <provoostenator> 2. make sure all DNS providers starting from my domain registrar can actually handle IPv6 (I had to move stuff for that reason)
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318 2019-08-09T17:59:05  <provoostenator> "dig -6 -t AAAA +trace seed.bitcoin.sprovoost.nl" can be helpful seeing where the buck stops, ht BlueMatt
319 2019-08-09T17:59:20  <provoostenator> Where -6 forces going over IPv6
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338 2019-08-09T18:58:44  <bitcoin-git> [bitcoin] LarryRuane opened pull request #16577: util: CBufferedFile fixes and unit test (master...CBufferedFile-fixes) https://github.com/bitcoin/bitcoin/pull/16577
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342 2019-08-09T18:59:05  <bitcoin-git> [bitcoin] laanwj pushed 2 commits to master: https://github.com/bitcoin/bitcoin/compare/9ab9d6356938...e47e36cb4975
343 2019-08-09T18:59:05  <bitcoin-git> bitcoin/master bf72b8a fanquake: build: disable libsecp256k1 benchmarks
344 2019-08-09T18:59:06  <bitcoin-git> bitcoin/master e47e36c Wladimir J. van der Laan: Merge #16573: build: disable building libsecp256k1 benchmarks
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347 2019-08-09T18:59:59  <bitcoin-git> [bitcoin] laanwj merged pull request #16573: build: disable building libsecp256k1 benchmarks (master...disable-secp256k1-benchmarks) https://github.com/bitcoin/bitcoin/pull/16573
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361 2019-08-09T19:52:57  <bitcoin-git> [bitcoin] achow101 opened pull request #16578: Do not pass in command line arguments to QApplication (master...no-qapp-args) https://github.com/bitcoin/bitcoin/pull/16578
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363 2019-08-09T20:12:52  <roasbeef> does everyone use the same software to operate their DNS seed? do they need to be manually updated to respond to queries for "new" service bits? for example, of the seeds i'm aware of, only seed.bitnodes.io responds to queries for teh x49 subdomain (full node, segwit, bip 158)
364 2019-08-09T20:14:55  <emzy> I think most using sipas dnsseed software, ecexpt one.
365 2019-08-09T20:17:30  <sipa> my seeder can be configured to support any subset of service bit combinations
366 2019-08-09T20:19:01  <emzy> I run the default.
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379 2019-08-09T20:45:09  <emzy> any recomendation which service bit combinations to enable on the dnsseed?
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418 2019-08-09T22:19:28  <roasbeef> emzy: x49? ;) that's bits 1, 3, and 6
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