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972017-11-28T02:41:54 <gmurf> any good places to learn how to use Bitcoin api
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1382017-11-28T04:13:31 <rusty> Latest master branch, bitcoind in regtest mode: bitcoind: validation.cpp:4203: void CheckBlockIndex(const Consensus::Params&): Assertion `(pindexFirstNeverProcessed != nullptr) == (pindex->nChainTx == 0)' failed.
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1402017-11-28T04:16:11 <rusty> Pretty sure that was a .bitcoind dir from an older bitcoind.
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1572017-11-28T05:47:02 <aj> rusty: hey, i can duplicate that
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1622017-11-28T05:57:04 <aj> rusty: try https://pastebin.com/QfjsEHFK to reproduce -- bug seems to be in validation.cpp::RewindBlockIndex where pindexIter->nTx or nChainTx gets set to 0, but not real sure what the fix should be
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1712017-11-28T06:25:01 <wangyuan> test
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1912017-11-28T07:13:30 <Varunram> rusty: aj: had the bugs few days back, turned out to be exactly what rusty specified, there'd be another .bitcoin directory somewhere. Once I changed home directories, it went well
1922017-11-28T07:16:53 <Varunram> bug*
1932017-11-28T07:23:29 <aj> Varunram: yeah, i think it'd be triggered by an old regtest blockchain from before #11389 got merged
1942017-11-28T07:23:32 <gribble> https://github.com/bitcoin/bitcoin/issues/11389 | Support having SegWit always active in regtest (sipa, ajtowns, jnewbery) by sipa · Pull Request #11389 · bitcoin/bitcoin · GitHub
1952017-11-28T07:23:41 *** JamesAU has joined #bitcoin-core-dev
1962017-11-28T07:24:51 <Varunram> aj: Thanks! I was looking for that commit, couldn't find it
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1982017-11-28T07:40:43 <bitcoin-git> [bitcoin] laanwj closed pull request #11722: Switched sync.{cpp,h} to std threading primitives. (master...tjps_sync_antiboost) https://github.com/bitcoin/bitcoin/pull/11722
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2012017-11-28T07:41:53 <wumpus> I'm completely lost with regard to PRs once again - anything ready for merge?
2022017-11-28T07:45:33 <jonasschnelli> wumpus: I think a lot of "unfinished" PRs right now...
2032017-11-28T07:45:39 <wumpus> yes...
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2052017-11-28T07:45:53 <fanquake> A few that could probably just be closed as well
2062017-11-28T07:46:20 <jonasschnelli> fanquake: BTW. Thanks for your awesome work on closing / pinging on PRs!
2072017-11-28T07:46:23 <fanquake> wumpus probably lost in that wormhole from earlier :p
2082017-11-28T07:46:31 <wumpus> yes thanks fanquake :)
2092017-11-28T07:46:54 <fanquake> jonasschnelli I try and keep on top of it. Have been wanting to ask you about your place for the coredev-tech site. Saw you put it up on GH?
2102017-11-28T07:47:32 <jonasschnelli> fanquake: Yeah, The site is ugly (but simple). jnewbery will probably do some changes for the NY meeting.
2112017-11-28T07:47:48 <jonasschnelli> (Which you are very welcome to join)
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2152017-11-28T07:49:06 <fanquake> jonasschnelli when is that, might see if I can come along? I'm waiting for a meetup down here heh
2162017-11-28T07:49:48 <jonasschnelli> fanquake: Australia is on the list,.. :) I'm not sure about the NY one... you need to ask jnewbery. Not sure if the exact date stays.. Guess it's in March 18
2172017-11-28T07:49:51 <jonasschnelli> Not announce yet
2182017-11-28T07:50:59 <fanquake> jonasschnelli cool. Good chance to discuss any potential iOS development work as well.
2192017-11-28T07:51:21 <aj> "next one in NYC the week of March 5th 2018"
2202017-11-28T07:53:06 <jonasschnelli> aj: Thanks!
2212017-11-28T07:53:27 <jonasschnelli> fanquake: Yeah. Though, I won't attend. Schedule-colision.
2222017-11-28T07:54:42 <wumpus> this is what we should avoid: https://github.com/bitcoin/bitcoin/pull/11747 the person posts a straightforward two-line fix for an actual issue, when well-meaning but overly zealous review comments get them to refactor things in a questionable way resulting in much more discussion and doubt of correctness
2232017-11-28T07:55:04 <fanquake> jonasschnelli no worries
2242017-11-28T07:55:17 <wumpus> if something fixes a problem, please just utACK it, if you want to refactor it to your personal taste later then go ahead but that's not part of review
2252017-11-28T07:55:59 <wumpus> now we have yet another PR that is stuck...
2262017-11-28T07:56:01 <jonasschnelli> wumpus: indeed.
2272017-11-28T07:57:01 <bitcoin-git> [bitcoin] fanquake closed pull request #9859: Make TestBlockValidity optional in CreateNewBlock (master...tbv-optional) https://github.com/bitcoin/bitcoin/pull/9859
2282017-11-28T07:58:22 <fanquake> I've always wondered how best we could keep tracked of post merge nits/minor fixups. Maybe another tag that we can add to PRs post merge which have any todos remaining in the comments? Then occasionally someone can sweep through and "clean up" stuff.
2292017-11-28T07:58:55 <wumpus> fanquake: I think MarcoFalke added the "up for grabs" tag for that
2302017-11-28T07:58:56 <fanquake> If GitHub search was a bit better it mightn't be such as issue.
2312017-11-28T07:59:14 <aj> commits that sweep through and clean up stuff are generally pretty painful though, aren't they?
2322017-11-28T07:59:21 <wumpus> yes, they are
2332017-11-28T07:59:29 <fanquake> wumpus I mean PRs that have been merged, but with outstanding todos. Rather than just abandoned. I guess they are somewhat the same.
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2352017-11-28T07:59:53 <wumpus> fanquake: if they have important TODOs that warrants an issue of its own, if not, better to forget about it sometimes
2362017-11-28T08:00:00 <wumpus> if no one cares to remember it
2372017-11-28T08:00:03 <fanquake> Is it more painful than not having obvious fixes easily merged
2382017-11-28T08:00:35 <raheel_> ?HELP
2392017-11-28T08:00:40 <fanquake> wumpus fair enough. I guess they get picked up again eventually anyways.
2402017-11-28T08:01:07 <wumpus> for criticial concerns with something that is merged always open an issue, that's what they're for
2412017-11-28T08:01:10 <raheel_> I want to create wallet address in pphp
2422017-11-28T08:01:19 <wumpus> raheel_: #bitcoin
2432017-11-28T08:01:22 <raheel_> php
2442017-11-28T08:01:37 <raheel_> any api ?
2452017-11-28T08:01:47 <wumpus> raheel_, take this to #bitcoin
2462017-11-28T08:01:55 <jonasschnelli> raheel_: this is the core dev channel, pleae use #bitcoin or #bitcoin-dev for your Q
2472017-11-28T08:01:58 <wumpus> read the topic for a change
2482017-11-28T08:02:13 <fanquake> Thoughts on #9754 ? This is the second or third time this PR has been opened, hasn't ever gotten any real discussion
2492017-11-28T08:02:15 <gribble> https://github.com/bitcoin/bitcoin/issues/9754 | Change NULLFAIL => SIG_NULLFAIL. by richardkiss · Pull Request #9754 · bitcoin/bitcoin · GitHub
2502017-11-28T08:02:23 <raheel_> hii
2512017-11-28T08:03:08 <wumpus> fanquake: it seems it doesn't really bother anyone but him
2522017-11-28T08:03:51 <fanquake> I think I'm just going to close it again.
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2542017-11-28T08:04:47 <bitcoin-git> [bitcoin] fanquake closed pull request #9754: Change NULLFAIL => SIG_NULLFAIL. (master...feature/unify_sig_nullfail) https://github.com/bitcoin/bitcoin/pull/9754
2552017-11-28T08:04:59 <fanquake> re ready to merge. Maybe #11647 if you wanted to verify the backports.
2562017-11-28T08:05:00 <gribble> https://github.com/bitcoin/bitcoin/issues/11647 | 0.15: Backports by MarcoFalke · Pull Request #11647 · bitcoin/bitcoin · GitHub
2572017-11-28T08:05:46 <wumpus> agree with closing, I see no way forward for that PR
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2602017-11-28T08:11:53 <aj> wumpus, fanquake: maybe having a 'highfive' bot would be an interesting idea to pursue? (auto welcome new contributors, assign reviewers, complain about lacking tests, modifying unsafe code, etc) http://sarah.thesharps.us/2016/11/17/impact-of-bots-on-github-communities/
2612017-11-28T08:12:31 <wumpus> I think we should add cfields's #11457 to high priority for review, to make sure his net refactoring work can move forward
2622017-11-28T08:12:34 <gribble> https://github.com/bitcoin/bitcoin/issues/11457 | Introduce BanMan by theuni · Pull Request #11457 · bitcoin/bitcoin · GitHub
2632017-11-28T08:13:34 <wumpus> aj: don't know about others, but I'm not really a fan of bots personally, they generate a lot of extra notification. We had a "pull tester" bot once, you know.
2642017-11-28T08:14:01 <wumpus> I like how travis integration doesn't generate a message, just shows the status inline
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2702017-11-28T08:16:12 <aj> wumpus: no, didn't know. how was the "pull tester" different to travis now?
2712017-11-28T08:16:24 <wumpus> it posted a message if the tests failed/passed
2722017-11-28T08:16:42 <aj> wumpus: ah, so same idea, just differnt github hook?
2732017-11-28T08:17:14 <wumpus> I guess so, it was a project specific solution. travis is generic
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2842017-11-28T08:48:51 <Provoostenator> Coveralls can be configured to post the result like Travis does and not leave comments.
2852017-11-28T08:49:05 <Provoostenator> Maybe the other bots can be too.
2862017-11-28T08:54:13 <wumpus> if so I have no problem with them
2872017-11-28T08:58:31 <wumpus> aj: anyhow that article seems interesting
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2952017-11-28T09:36:46 <bitcoin-git> [bitcoin] laanwj opened pull request #11781: Add `-debuglogfile` option (master...2017_11_logfile) https://github.com/bitcoin/bitcoin/pull/11781
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3252017-11-28T11:12:50 <bitcoin-git> [bitcoin] laanwj opened pull request #11783: Fix shutdown in case of errors during initialization (master...2017_11_notify_callbacks_shutdown_crash) https://github.com/bitcoin/bitcoin/pull/11783
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3352017-11-28T12:11:55 <bitcoin-git> [bitcoin] laanwj closed pull request #11287: DRY config header inclusion (master...refactor/dry-config) https://github.com/bitcoin/bitcoin/pull/11287
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3452017-11-28T12:46:46 <promag> wumpus: I'm going to test #11783 rebased with #11781
3462017-11-28T12:46:48 <gribble> https://github.com/bitcoin/bitcoin/issues/11783 | Fix shutdown in case of errors during initialization by laanwj · Pull Request #11783 · bitcoin/bitcoin · GitHub
3472017-11-28T12:46:49 <gribble> https://github.com/bitcoin/bitcoin/issues/11781 | Add `-debuglogfile` option by laanwj · Pull Request #11781 · bitcoin/bitcoin · GitHub
3482017-11-28T12:48:19 <wumpus> thanks!
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3552017-11-28T12:56:56 <promag> wumpus: bitcoind -debuglogfile=/foo/bar/bar.log doesn't crash without 11783
3562017-11-28T12:57:40 <promag> > (currently this segfaults afterwards, but that is due to an unrelated problem introduced in #10286, see #11783)
3572017-11-28T12:57:44 <gribble> https://github.com/bitcoin/bitcoin/issues/10286 | Call wallet notify callbacks in scheduler thread (without cs_main) by TheBlueMatt · Pull Request #10286 · bitcoin/bitcoin · GitHub
3582017-11-28T12:57:45 <gribble> https://github.com/bitcoin/bitcoin/issues/11783 | Fix shutdown in case of errors during initialization by laanwj · Pull Request #11783 · bitcoin/bitcoin · GitHub
3592017-11-28T12:57:56 <promag> doesn't segfault here
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3612017-11-28T13:00:55 <wumpus> well that's good
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3632017-11-28T13:03:50 <wumpus> still happens here
3642017-11-28T13:04:19 <wumpus> "src/bitcoind -debuglogfile=/dfdf" is enough to reproduce it immediately
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3672017-11-28T13:12:14 <promag> wumpus: what I mean is that 11781 alone doesn't segfault, how could it segfault there?
3682017-11-28T13:12:42 <wumpus> I don't know, maybe a subtle configuration difference?
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3712017-11-28T13:18:17 <wumpus> backtrace: https://0bin.net/paste/s2wRk1OomkBcFp3j#3-RdKCqzohpsAOe3dBIjacEmEuu6fh6tgCa9E4FIxBS
3722017-11-28T13:18:20 <gribble> https://github.com/bitcoin/bitcoin/issues/3 | Encrypt wallet · Issue #3 · bitcoin/bitcoin · GitHub
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3762017-11-28T13:19:28 <wumpus> so it calls UnregisterValidationInterface(0) . I don't see how that could not segfault.
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3862017-11-28T13:49:51 <promag> wumpus: sorry my bad, forget to git checkout . after git reset HEAD~1
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3932017-11-28T14:07:26 <wumpus> hah!
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3962017-11-28T14:22:31 <wumpus> what would be a good functional test to add the -debuglogfile= test in? can create a new one but it seems kind of overkill
3972017-11-28T14:23:08 *** laurentmt has joined #bitcoin-core-dev
3982017-11-28T14:24:57 <wumpus> none itseems, I'll just create a new one
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4022017-11-28T14:43:01 <Provoostenator> In an RPC test, how would I go about debugging why sync_mempools times out, after a succesful sendrawtransaction?
4032017-11-28T14:44:57 <Provoostenator> See bumpfee.py in https://github.com/Sjors/bitcoin/tree/bumpfee-test-refactor
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4052017-11-28T14:45:45 <Provoostenator> I don't think it's related to the minimum relay fee, as even a 0.1 BTC fee doesn't help.
4062017-11-28T14:46:53 <Provoostenator> I probably broke something about the nodes in the test setup, but it would be nice if I can reveal some sort of P2P error message to get a clue what I broke.
4072017-11-28T14:47:19 <Provoostenator> E.g. can I access log files of the test nodes?
4082017-11-28T14:47:29 <wumpus> timeout problems are notoriously annoying to debug
4092017-11-28T14:47:56 <wumpus> yes, you can, it prints the test directory at start
4102017-11-28T14:48:03 <wumpus> inside that are the data directories for the nodes
4112017-11-28T14:48:31 <wumpus> also pass --nocleanup to not clean up
4122017-11-28T14:49:38 <Provoostenator> Ah yes, that's very useful.
4132017-11-28T14:51:16 <wumpus> there's also test/functional/combine_logs.py to merge the test log with logs of multiple nodes
4142017-11-28T14:51:26 <wumpus> (to show one timeline)
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4162017-11-28T14:52:44 <Provoostenator> I'm seeing an AddToWallet entry in the logs for the node that created the transaction, but no obvious error messages after that related to propagating it to the other peer.
4172017-11-28T14:53:20 <Provoostenator> The other node has a "got inv: tx" entry for the same tx
4182017-11-28T14:53:44 *** Sinclair6 has joined #bitcoin-core-dev
4192017-11-28T14:54:01 <Provoostenator> And no obvious error either.
4202017-11-28T14:54:20 *** Giszmo has joined #bitcoin-core-dev
4212017-11-28T14:55:01 <Provoostenator> mempool.dat is empty for the other node though
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4272017-11-28T15:26:07 <Provoostenator> So Iâm looking for debut messages that might explain why a node receives a transaction, but doesnât add it to its mempool.
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4332017-11-28T16:10:50 <instagibbs> Provoostenator, you may have to set debug=p2p, if you haven't yet
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4632017-11-28T17:54:29 <Provoostenator> instagibbs: is that a flag to pass to the test node?
4642017-11-28T17:58:35 <Provoostenator> --tracerpc is quite useful too, although in this case it just shows that the second node's mempool is indeed empty every time sync_mempools looks at it
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4662017-11-28T18:02:18 <instagibbs> Provoostenator, yes, `debug=X` is the general purpose logging argument
4672017-11-28T18:04:07 <Provoostenator> "<category> can be: net, tor, mempool, http, bench, zmq, db, rpc, estimatefee, addrman, selectcoins, reindex, cmpctblock, rand, prune, proxy, mempoolrej, libevent, coindb, qt, leveldb"
4682017-11-28T18:04:51 *** Chris_Stewart_5 has joined #bitcoin-core-dev
4692017-11-28T18:04:57 <instagibbs> oh sorry, so it's "net"
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4722017-11-28T18:14:36 <Provoostenator> Ok, that seems to add a bit more detail. So the node which doesn't update its mempool log says: "received: inv (37 bytes) peer=1", "got inv: tx b4e9...f354 new peer=1"
4732017-11-28T18:14:51 *** Randolf has joined #bitcoin-core-dev
4742017-11-28T18:14:55 <Provoostenator> I'll turn on some more debug options...
4752017-11-28T18:16:14 *** b71a48f9 has joined #bitcoin-core-dev
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4772017-11-28T18:18:51 <sipa> there is also -debug=all
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4802017-11-28T18:31:00 <Provoostenator> Even -debug-all doesn't tell me anything useful. Here's the combined log: https://gist.github.com/Sjors/f887722422f49144fe9b97cee9fef836
4812017-11-28T18:32:00 <Provoostenator> Interestingly the same transaction (ca43...) is sent twice, even though only one test is run.
4822017-11-28T18:38:22 <luke-jr> Provoostenator: -debug=all is not -debug-all
4832017-11-28T18:40:15 <Provoostenator> luke-jr: that was a typo in IRC only.
4842017-11-28T18:43:32 <Provoostenator> The test framework shows a warning if you use an unsupported debug category.
4852017-11-28T19:12:46 *** laurentmt has joined #bitcoin-core-dev
4862017-11-28T19:13:07 <MarcoFalke> nanotube: Where is the gribble code hosted that runs in this channel?
4872017-11-28T19:13:20 <MarcoFalke> nanotube: https://github.com/nanotube/supybot-bitcoin-marketmonitor is only for the market, no?
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4932017-11-28T19:31:05 <jonasschnelli> wumpus: Would it make sense to mention absolute paths are possibbe in #11781 (in the release notes or the init.cpp part)?
4942017-11-28T19:31:07 <gribble> https://github.com/bitcoin/bitcoin/issues/11781 | Add `-debuglogfile` option by laanwj · Pull Request #11781 · bitcoin/bitcoin · GitHub
4952017-11-28T19:31:35 <jonasschnelli> Only after reading the code I know it's possible (if (logfile.is_absolute()) {)
4962017-11-28T19:31:43 <jonasschnelli> *knew
4972017-11-28T19:32:02 <jonasschnelli> But maybe it's obvious
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5032017-11-28T19:41:13 <blockchain> hi I have installed bitcoin-core 15.01 and want to use the replace by fee. but the "increase transaction fee" option is grey, how can i activate it ?
5042017-11-28T19:42:36 <jonasschnelli> blockchain: better use #bitcoin for this... off-topic here.
5052017-11-28T19:42:51 <blockchain> ok didnt know where to ask
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5292017-11-28T20:46:04 <jonasschnelli> wumpus: every tried ODROID-XU4 with Core?
5302017-11-28T20:46:43 <sipa> jonasschnelli: i'm syncing on an odroid-c2 currently
5312017-11-28T20:47:26 <jonasschnelli> sipa: Oh. What storage?
5322017-11-28T20:50:23 <sipa> 128 GB microsd card, pruned
5332017-11-28T20:52:05 <jonasschnelli> sipa: okay. Happy to hear more... (sync speed, corruptions)
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5352017-11-28T20:53:00 <sipa> i just started maybe 10 hours ago
5362017-11-28T20:53:12 <sipa> ask me again in a week :)
5372017-11-28T20:53:46 <jonasschnelli> I'd say in 3 days. :)
5382017-11-28T20:54:20 <Masterboy> jonasschnelli, sync speed is really bad on my core i3 pentium 300mbit connection
5392017-11-28T20:54:37 <Masterboy> it took me days to sync from the start
5402017-11-28T20:54:50 <jonasschnelli> Masterboy: dbcache how large?
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5422017-11-28T20:55:13 <Masterboy> and the ping and speed to other clients was like 1/mbit
5432017-11-28T20:55:20 <Masterboy> wait i will see
5442017-11-28T20:55:30 <Masterboy> now it is crawling slow
5452017-11-28T20:55:40 <Masterboy> client 0.15.1
5462017-11-28T20:58:07 <jonasschnelli> Masterboy: network speed doesn't matter that much. What matters is CPU speed for signature verification, a.s.o. Disk speed is also important for the UTXO set read/writes.
5472017-11-28T20:58:33 <jonasschnelli> Make sure you use a large dbcache which can make a significant improvement
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5492017-11-28T21:02:04 <sipa> jonasschnelli: running with dbcache=450 maxmempool=10
5502017-11-28T21:02:15 <sipa> default settings made it OOM
5512017-11-28T21:04:49 <jonasschnelli> sipa: but you have 2GB, right?
5522017-11-28T21:05:34 <jonasschnelli> maybe the maxmempool->dbcache-during-IBD-change is a OOM-problem for such systems
5532017-11-28T21:05:54 <sipa> the total RSS was totally within expected ranges
5542017-11-28T21:06:03 <sipa> it's more a question of what else was using memory i guess
5552017-11-28T21:06:07 <sipa> but i haven't investigated
5562017-11-28T21:06:14 <jonasschnelli> running with X?
5572017-11-28T21:06:15 <Masterboy> jonasschnelli, sorry it take some time to load btc-qt like 10 min now. i am loading it from a hdd 700gb
5582017-11-28T21:06:35 <sipa> jonasschnelli: yes, with a 4k screen - maybe that causes a lot of video memory
5592017-11-28T21:06:46 <jonasschnelli> sipa: go headless!
5602017-11-28T21:06:53 <sipa> yes, i should
5612017-11-28T21:07:00 <Masterboy> jonasschnelli, how can i find out the dbcache value?
5622017-11-28T21:07:05 <sipa> Masterboy: #bitcoin
5632017-11-28T21:07:06 <jonasschnelli> 4k screen. ;-)
5642017-11-28T21:07:45 <Masterboy> ok default is 450 i see in the manual
5652017-11-28T21:07:50 <sipa> my tv was the only screen i had available with an HDMI port
5662017-11-28T21:08:29 <Masterboy> jonasschnelli, so how can i make it faster? what should i set for a 300mbit connection?
5672017-11-28T21:08:49 <Masterboy> jonasschnelli, cpu is 2.4ghz
5682017-11-28T21:09:10 <jonasschnelli> Masterboy: please answer in the #bitcoin channel
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5722017-11-28T21:35:55 <BlueMatt> sipa: I highly recommend headless c2s, you can now build upstream kernels from released branches and upstream u-boot and things work :)
5732017-11-28T21:36:01 <BlueMatt> no closed-source drivers needed
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5752017-11-28T21:36:44 <BlueMatt> (closed source tool needed to convert u-boot build to binary image, sadly, and it does have a close-source first boot loader stage)
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5812017-11-28T21:43:15 <nanotube> MarcoFalke: that repo you linked contains a bunch of the plugins, but the core of the bot is https://github.com/nanotube/supybot_fixes
5822017-11-28T21:43:56 <MarcoFalke> nanotube: I was specifically looking for the code that does this: #1337
5832017-11-28T21:43:58 <gribble> https://github.com/bitcoin/bitcoin/issues/1337 | Quieter initial block download by rebroad · Pull Request #1337 · bitcoin/bitcoin · GitHub
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5872017-11-28T21:48:45 <nanotube> MarcoFalke: ah, that's the MessageParser plugin :) the actual function to spit out issues is just config in the plugin
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5902017-11-28T21:51:49 <cluelessperson> I'm sorry to annoy you, is there an ETA on Core segwit support in the QT wallet?
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5932017-11-28T22:00:02 <sipa> cluelessperson: when it's done
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5962017-11-28T22:01:48 <sipa> cluelessperson: we never have the ability to set ETAs on features, as they depend on review, which is done by people volunteering their time
5972017-11-28T22:05:08 <cluelessperson> sipa: how can I help? (I don't know C++)
5982017-11-28T22:05:48 <sipa> cluelessperson: you can help by testing it for sure
5992017-11-28T22:06:08 <cluelessperson> sipa: can you lead me through what I need to do?
6002017-11-28T22:06:15 <sipa> https://github.com/bitcoin/bitcoin/pull/11403
6012017-11-28T22:06:18 <cluelessperson> maybe I can gain some experience and help more on my own in the future
6022017-11-28T22:06:36 <sipa> can you compile from sourcr?
6032017-11-28T22:06:42 <cluelessperson> yes
6042017-11-28T22:07:30 <sipa> well the hardest part of being a good testing is figuring out what are good scenarios to test
6052017-11-28T22:07:37 <sipa> identifying potential edge cases
6062017-11-28T22:07:48 <cluelessperson> I figure I could try to test everythign on testnet
6072017-11-28T22:07:57 <Chris_Stewart_5> *something something* #8469 *something something*
6082017-11-28T22:07:59 <gribble> https://github.com/bitcoin/bitcoin/issues/8469 | [POC] Introducing property based testing to Core by Christewart · Pull Request #8469 · bitcoin/bitcoin · GitHub
6092017-11-28T22:10:56 <cfields> Chris_Stewart_5: ugh, sorry. I promised you at Stanford that I'd take a look at that again, and never did.
6102017-11-28T22:11:00 <cfields> adding it to my review queue.
6112017-11-28T22:11:16 <BlueMatt> Chris_Stewart_5: I believe its still blocked on gcc 4.9, no?
6122017-11-28T22:11:21 <BlueMatt> jnewbery: seemed to think so, at least
6132017-11-28T22:11:24 <BlueMatt> (we currently only require 4.8)
6142017-11-28T22:11:29 <Chris_Stewart_5> cfields: It's fine! I just like to make shameless plugs when I can.
6152017-11-28T22:11:48 * BlueMatt still has it marked as "awaiting gcc bump"
6162017-11-28T22:12:12 <Chris_Stewart_5> BlueMatt: I'm far from an expert on the build system, but can we make it only build if we have a >= 4.9 compiler?
6172017-11-28T22:12:44 <Chris_Stewart_5> it was my understanding that 4.8 is going to be around for awhile
6182017-11-28T22:12:57 <BlueMatt> 4.8 is some debian thing, right?
6192017-11-28T22:13:01 <BlueMatt> like oldstable?
6202017-11-28T22:13:14 <cfields> that's what we just did for DEBUG_LOCKORDER, so that sounds like fair game to me
6212017-11-28T22:13:20 <BlueMatt> true
6222017-11-28T22:13:40 <cfields> Trusty is 4.8 too
6232017-11-28T22:13:48 <BlueMatt> ah, an ubuntu thing
6242017-11-28T22:14:04 <BlueMatt> oldstable appears to be 4.9
6252017-11-28T22:14:23 <sipa> what feature in 4.9 is needed?
6262017-11-28T22:14:42 <BlueMatt> heh, trusty doesn't die until 2019
6272017-11-28T22:14:53 <BlueMatt> man I'm so glad ubuntu shortened their supported cycle
6282017-11-28T22:15:01 <Chris_Stewart_5> sipa: See the pull request. The library I'm using uses lambda's heavily
6292017-11-28T22:15:28 <Chris_Stewart_5> apparently there is an issue with parameter packs
6302017-11-28T22:16:07 <cfields> variadic lambdas? I thought that was a c++14 (or higher?) thing
6312017-11-28T22:17:13 <cfields> oh, maybe that's a variadic in the callback definition as opposed to unpacking inside the lambda
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6332017-11-28T22:17:37 <MarcoFalke> nanotube: Ah, so the config is not in the repo... Have you enabled the Scheduler plugin? If so, mind adding a repeat every seconds=7*24*60*60 with a message of 'Meeting in ~30min' (first time at around 18:30UTC next Thursday)?
6342017-11-28T22:19:09 <MarcoFalke> cfields: yeah travis is on trusty.
6352017-11-28T22:19:21 <MarcoFalke> And I'd prefer to have it run on travis. Or at least compile
6362017-11-28T22:19:29 <sipa> Chris_Stewart_5: it looks like it's a c++11 feature that's just buggy in gcc 4.5-4.8
6372017-11-28T22:19:39 <sipa> cfields: ^
6382017-11-28T22:19:50 <MarcoFalke> Jup, it is a bug in gcc4.8 that was never fixed (or backported)
6392017-11-28T22:19:50 <cfields> MarcoFalke: well we could always work around that. The issue is what we consider to be the minimum for building.
6402017-11-28T22:20:35 <BlueMatt> cfields: werent you gonna get us a depends-built gcc by 0.15 :p
6412017-11-28T22:21:04 <MarcoFalke> Jup, could use that as work-around and keep min-gcc at 4.8
6422017-11-28T22:21:15 <cfields> BlueMatt: yea, I just started messing with it again. Still unclear, though, whether we should go the gcc or clang route :(
6432017-11-28T22:21:29 <BlueMatt> i thought we were going the "trusting trust" route :p
6442017-11-28T22:21:47 <BlueMatt> (ie: both)
6452017-11-28T22:22:30 <cfields> BlueMatt: both available for use? or use them to compile each-other, then use 1 of the resulting ones?
6462017-11-28T22:22:40 <BlueMatt> the second
6472017-11-28T22:23:02 <cfields> yea, even if we use clang for everything, we'll still want to build it with gcc at least once.
6482017-11-28T22:25:35 <cfields> Chris_Stewart_5: https://github.com/emil-e/rapidcheck/commit/100fc66908b7c063160a3eebc5b778becaa335d1
6492017-11-28T22:25:58 <cfields> Chris_Stewart_5: have you tried with a very recent rapidcheck, as opposed to what's shipped by distros?
6502017-11-28T22:26:34 <MarcoFalke> lol, what disto ships that?
6512017-11-28T22:27:06 <MarcoFalke> Aren't we fetching the code from the git directly?
6522017-11-28T22:28:28 <Chris_Stewart_5> cfields: I did not see that and MarcoFalke yes. IIRC someone created a .mk file for it
6532017-11-28T22:28:42 <cfields> oh, i assumed distros packaged it so we could use a local copy. nm.
6542017-11-28T22:28:42 <MarcoFalke> I did ;)
6552017-11-28T22:28:47 <Chris_Stewart_5> hah I thought it was you.
6562017-11-28T22:29:22 <Chris_Stewart_5> cfields: I'll look at that later and see if I can just use that hack instead of having to do all this extra work
6572017-11-28T22:29:30 <Chris_Stewart_5> thanks!
6582017-11-28T22:29:59 <cfields> Chris_Stewart_5: well it's pretty old, so I assume it's not enough
6592017-11-28T22:30:21 <cfields> (I was thinking you were testing with a stale distro package)
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6612017-11-28T22:34:26 <cfields> yea, your commit includes the hack
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7012017-11-28T23:50:54 <meshcollider> promag: are you here?
7022017-11-28T23:51:00 <promag> y
7032017-11-28T23:51:15 <meshcollider> re: https://github.com/bitcoin/bitcoin/pull/11726/commits/75ae7453769517397df1020407bfa201121c5e31#r151863274 what do you mean by removing the default value?
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7052017-11-28T23:51:34 <meshcollider> what would you suggest I put there instead?
7062017-11-28T23:53:19 <promag> I thought this was true: std::string GetArg(const std::string& strArg, const std::string& strDefault="") const;
7072017-11-28T23:53:49 <promag> Because your code is inside if (gArgs.IsArgSet("-walletdir") ...
7082017-11-28T23:54:31 <promag> So this would look better gArgs.GetArg("-walletdir")
7092017-11-28T23:54:47 <meshcollider> iirc GetArg didn't default to empty string?
7102017-11-28T23:55:00 <meshcollider> https://github.com/bitcoin/bitcoin/blob/master/src/util.h#L229
7112017-11-28T23:55:00 <promag> right, it doesn't
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7132017-11-28T23:56:14 <promag> it could be overloaded: std::string GetArg(const std::string& strArg) const; and there it would assert(IsSet(strArg))
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7152017-11-28T23:56:55 <meshcollider> yeah true, probably out of scope for this PR though :)
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7172017-11-28T23:57:34 <meshcollider> Also re: same PR, I'm unsure about the change you suggested to files.md, because even nodes running 0.16.0 will use the old file location if its an upgrade not a new install
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7192017-11-28T23:58:05 <meshcollider> if I move it to a "Only used in pre-0.16.0" section, users may not realise that
7202017-11-28T23:58:36 <promag> you mean this https://github.com/bitcoin/bitcoin/pull/11726/files#r153250209 ?
7212017-11-28T23:58:51 <promag> just say:
7222017-11-28T23:58:56 <meshcollider> yep
7232017-11-28T23:59:19 <promag> * db.log: wallet database log file; replaced by wallets/ directory in 0.16.0 for fresh installs?
7242017-11-28T23:59:22 <promag> or something?