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Meeting Notes 2021 11 29

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Elias Rohrer edited this page Aug 9, 2022 · 1 revision

Target release for 0.0.104

  • #1054 (ariard)
  • #1106 (TheBlueMatt)
  • #129 (?)
  • #216 (?)
  • #240 (?)
  • #580 (?)
  • #615 (?)
  • #630 (?)
  • #784 (?)
  • #993 (?)
  • #996 (?)
  • #1069 (?)
  • #1111 (?)
  • #1126 (?)
  • #1129 (?)
  • #1164 (?)
  • #1174 (?)
  • A few are just requests for review
  • Only thing that really needs to be fixed is 1164 (all paths failed thing), matt todo soon
  • Whenever thats done we’ll cut 104, and fix minor issues along the way
  • Antoine: would be useful for someone to go thru the spec and check for issues/inconsistencies in LDK
  • 1056
    • Auto close if no fees updated for a long period of time
    • Matt: thinking from a user pov, if feerate spikes 5x on a monday, peer disconnected, im prob still ok w the old feerate if i have 0 htlcs. Should we only do the autoclose if htlcs are pending?
    • Antoine: we do that in the latest version

Scoring

  • Matt: chatted w rene, easiest way to model available bandwidth on a channel is to model it as a min and max estimates for a channel’s liquidity that gets continually updated on success/failure
    • Doesn’t rly capture nodes being offline
    • Seems trivial, could go in this direction, no pressure to do it immediately, but seems simple

DLC support

  • Ariard: Unknown what tibo has in mind for next step
  • High level issue: if u want to dlc over ln, every channel you’ll update the commit tx, you have to re-sign the dlc contract txs, and you might have like 10,000. Quite slow.
  • Every time htlc shared on same commit tx as dlc one, might have to re-sign for every pending dlc across your channel
  • ongoing conversation on the ML: https://mailmanlists.org/pipermail/dlc-dev/2021-November/000091.html and https://github.com/Tibo-lg/lightning-rfc/pull/1/files
  • Rn, no channel jamming mitigation across the network, also an issue
  • One solution is sighash_anyprevout, bc it moves txid out of children txs, so can change states and don’t need to re-sign the children. Thats nice but we don’t know when sighash_anyprevout will be deployed
  • Lloyd, nadav, chris, are also involved in these meetings
  • Currently just trying to get out the first specifications
  • Matt: we can always spend time on custom channel scripts, got other stuff to do now tho

Spec

  • Video meeting last week
  • There’s a recurring disagreement about how to view feature bits, comes up too often
  • PR 1179 is an important first step to 0-conf

Signer

  • Devrandom working on best way to get onchain validation support. Given utxo is on or off chain. Have been looking a utreexo and compact block filters for this
  • Recently, devrandom decided maybe we can just use spv w/ a heuristic about the hashrate that we observe. So as long as we see hashrate is proceeding apace, we can presume we’re not being eclipsed and perhaps build a simpler version of that immediately and move on
    • Not necessarily long term but nice initial step
  • Everything going pretty well, got some anchors advances merged recently

Github labels

  • Seems to be working well to mark PRs as “seeking review”
  • Once it has 2 reviewers, it loses the label
  • If waiting on re-review, assign it to the previous reviewers

Bindings

  • Buncha papercuts crop up on the java side
  • Arik: ran into some issues getting ram (the guy from apple who wants to contribute to ldk-swift) have the generator compile on his machine. Considering it was a mac, i was surprised since it should’ve been identical to my setup. We did get it to work in the end, so we’ll be able to work together fixing a bunch of issues after a couple days of me working on lnsync stuff. In the interim, i wanna figure out why there was this discrepancy.

Website

  • We’re a ways out of sync here
  • Haven’t had a chance to work on it
  • We really just need to automate the website to be something that gets updated in code instead of being a separate html document, but that’s a whole other project
  • Conor mentioned adding a quickstart guide to the website using polar
  • #95 and #96 need review
  • community: public board for feature request/milestones tracking, see https://lightningdevkit.slack.com/archives/CSYT185MY/p1637600110131600
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