p2p: extend inbound eviction protection by network to CJDNS peers#24165
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laanwj merged 4 commits intobitcoin:masterfrom Mar 2, 2022
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This commit extends our inbound eviction protection to CJDNS peers to favorise the diversity of peer connections, as peers connected through the CJDNS network are otherwise disadvantaged by our eviction criteria for their higher latency (higher min ping times) relative to IPv4 and IPv6 peers. The `networks` array is order-dependent in the case of a tie in candidate counts between networks; earlier array members receive priority in the case of a tie. Therefore, we place CJDNS candidates before I2P, localhost, and onion ones in terms of opportunity to recover unused remaining protected slots from the previous iteration, estimating that most nodes allowing several inbound privacy networks will have more onion, localhost or I2P peers than CJDNS ones, as CJDNS support is only being added in the upcoming v23.0 release.
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Concept ACK |
w0xlt
approved these changes
Jan 26, 2022
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Concept and code review ACK b7be28c |
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The following sections might be updated with supplementary metadata relevant to reviewers and maintainers. ConflictsNo conflicts as of last run. |
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Thanks for the ACKs @kristapsk, @w0xlt and @laanwj. Here is an example at this moment of the min ping latency of inbound IP peers vs CJDNS, Tor and I2P ones.
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Extend inbound eviction protection for peers connected over CJDNS, as is the case for peers connected via onion, localhost, and I2P since #21261 and #20197. CJDNS peers seem to have better min ping latency than onion and I2P peers but still higher than that of unencrypted IPv4/6 peers and can be disadvantaged under our eviction criteria. They are also very few in number, which is a further reason to protect them, as the goal of this logic is to favorise the diversity of our peer connections. CJDNS support was added in #23077 for the upcoming v23 release.