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Subject: Re: [bitcoindev] Call for reconfiguration of nodes to relay
transactions with fee-rates below 1 sat/vbyte
Date: Fri, 31 Jan 2025 15:40:12 +0100
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> I suppose that miners already use -blockmintxfee=0 or anything lower
> than the default value because there are transactions with fees as low
> as 0 (zero) in the blocks.
It seems more likely that they used the prioritisetransaction RPC [0] in order to
include only those 0 fee transaction that they were paid for (via lightning, creditcard).
> I can't see how minrelaytxfee=0.00000001 could increase risk of DoS
> attack or make it significantly cheaper or more effective. There are
> the default 300MB size limit for mempool and 336 hours timeout for
> unconfirmed txs. They limit impact of a low fee-rate txs DoS attack
> making it ineffective.
I could quote Donald Rumsfeld, but instead I'll point out that you're
forgetting about bandwidth, memory[1] and CPU usage.
- Sjors
[0] https://bitcoincore.org/en/doc/28.0.0/rpc/mining/prioritisetransaction/
[1] e.g. https://bitcoincore.org/en/2024/10/08/disclose-large-inv-to-send/
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