--- Log opened Sun Jun 21 00:00:03 2020
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03:01 < gleb> Could someone point me to the code finding multiple paths for MPP in either of the ln implementations? I was lurking in the repos for a bit and the code i see only finds a one-path routes so far, although there are many mentions of this feature here and there.
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03:55 < cdecker> gleb: our sending support is still work in progress, I'll have more next week :-)
03:56 < cdecker> lnd are the only ones that have MPP sending support afaik, and they implemented a really trivial split-in-half-on-retry mechanism
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04:30 < gleb> Ah I see, looking forward for your update :) I was sketching it for rust-lightning so i was curious about what others do
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04:44 < cdecker> Wanna share notes? I'm also trying to figure out how we can improve the success rate and reduce the time-to-completion
05:23 < gleb> I’m happy to brainstorm together but I’m in the very early stages of exploration so not sure how to make it mutually useful yet.
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16:48 < ariard> ja: I'm not sure op_ctv would fit there, how previous commitment transaction can be hashchain-covenanted to future unknown transactions?
16:52 <+roasbeef> gleb: our is here: https://github.com/lightningnetwork/lnd/blob/master/routing/payment_session.go#L233
16:52 <+roasbeef> taht's the main payment loop 
16:52 <+roasbeef> as far as when to split we use simple divide an conquer
16:53 <+roasbeef> but then there's this probability engine in the background that's used to retain memory of passed attempts which cuts down on the search space a bit, and can also learn from payment succsesses baed on the amt, etc 
16:58 <+roasbeef> here's the loop that handles the payment shards: https://github.com/lightningnetwork/lnd/blob/1bd211a7228d2f13ecaf514f611738837c057d94/routing/payment_lifecycle.go#L113 
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23:46 < gleb> great, thanks! I was confused by route/path distinction I guess, but now that you confirmed the place in code it makes more sense.
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--- Log closed Mon Jun 22 00:00:06 2020