📅 Original date posted:2018-01-15
📝 Original message:
Ok, so limit things to 100 channels... Still don't see why the constants get into unreasonable load here...
On January 15, 2018 2:53:07 AM UTC, ZmnSCPxj <ZmnSCPxj at protonmail.com> wrote:
>Good morning Matt,
>
>> I can't imagine the constants add up that fast... Allow 25 channels
>per peer and limit your peers reasonably and the cost should be low
>enough. Really not sure why something like a 25 channel limit should
>limit any usage or reasonably burden a node, what am I missing?
>
>You impose this 25 channels per peer. I start opening a channel to
>you. Because I did not check mempool or because my fee-estimation algo
>is bad, I pay too low a fee. I become impatient and bump it up, which
>you perceive as another open (so it is now 2/25 channels).
>Unfortunately I only bumped my fee by a tiny amount, because reasons.
>I bump the fees upwards for example five more times, each of which you
>perceive as another channel open, so from your side it looks like I am
>consuming 7/25 channels. Finally the funding transaction confirms, but
>the 6 previous transactions are perceived by you as unconfirmed channel
>opens, so you will still keep the 6 channels accounted in your
>25-channel-limit.
>
>Suppose in a few days (i.e. much less than a week) I decide to have
>three more channels to you. If I go through all that (starting with
>low fee, bumping up fee, etc) then I may very well run out of the
>available 25 channels to you, even though I only really have 1 channel
>already opened and am trying to make an additional 3 channels only.
>
>Granted this is somewhat contrived, but it shows what I wish to avoid
>with `funding_cancelled`.
>
>Regards,
>ZmnSCPxj
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Matt Corallo [ARCHIVE] /
npub1e4…jxmcu
2023-06-09 12:48:27
in reply to nevent1q…3feg
Author Public Key
npub1e46n428mcyfwznl7nlsf6d3s7rhlwm9x3cmkuqzt3emmdpadmkaqqjxmcuPublished at
2023-06-09 12:48:27Event JSON
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"content": "📅 Original date posted:2018-01-15\n📝 Original message:\nOk, so limit things to 100 channels... Still don't see why the constants get into unreasonable load here...\n\nOn January 15, 2018 2:53:07 AM UTC, ZmnSCPxj \u003cZmnSCPxj at protonmail.com\u003e wrote:\n\u003eGood morning Matt,\n\u003e\n\u003e\u003e I can't imagine the constants add up that fast... Allow 25 channels\n\u003eper peer and limit your peers reasonably and the cost should be low\n\u003eenough. Really not sure why something like a 25 channel limit should\n\u003elimit any usage or reasonably burden a node, what am I missing?\n\u003e\n\u003eYou impose this 25 channels per peer. I start opening a channel to\n\u003eyou. Because I did not check mempool or because my fee-estimation algo\n\u003eis bad, I pay too low a fee. I become impatient and bump it up, which\n\u003eyou perceive as another open (so it is now 2/25 channels). \n\u003eUnfortunately I only bumped my fee by a tiny amount, because reasons. \n\u003eI bump the fees upwards for example five more times, each of which you\n\u003eperceive as another channel open, so from your side it looks like I am\n\u003econsuming 7/25 channels. Finally the funding transaction confirms, but\n\u003ethe 6 previous transactions are perceived by you as unconfirmed channel\n\u003eopens, so you will still keep the 6 channels accounted in your\n\u003e25-channel-limit.\n\u003e\n\u003eSuppose in a few days (i.e. much less than a week) I decide to have\n\u003ethree more channels to you. If I go through all that (starting with\n\u003elow fee, bumping up fee, etc) then I may very well run out of the\n\u003eavailable 25 channels to you, even though I only really have 1 channel\n\u003ealready opened and am trying to make an additional 3 channels only.\n\u003e\n\u003eGranted this is somewhat contrived, but it shows what I wish to avoid\n\u003ewith `funding_cancelled`.\n\u003e\n\u003eRegards,\n\u003eZmnSCPxj\n-------------- next part --------------\nAn HTML attachment was scrubbed...\nURL: \u003chttp://lists.linuxfoundation.org/pipermail/lightning-dev/attachments/20180115/87ac7cd0/attachment.html\u003e",
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