Filter out useless addresses from "addr" peer exchange #4609

issue jgarzik opened this issue on July 31, 2014

jgarzik commented at 4:39 AM on July 31, 2014: contributor
addrman blindly provides a bunch of addresses, even ones that
- have been banned
- have been tried, and failed (multiple times, even)
This is apparent in two cases,
- Bogon peers are returned in "addr" messages, thereby ensuring these zombies live on
- Tries to connect to known-failed addresses over and over again, if total peer db is low on addresses. Never seen on mainnet, but sometimes seen on testnet.
In general, we should provide a way for the network and local nodes to slowly forget ancient/dead/failed addresses.
laanwj added the label P2P on Jul 31, 2014
rebroad commented at 6:28 AM on September 8, 2016: contributor

But, how do nodes remember which nodes they have forgotten?
jgarzik commented at 3:40 PM on November 4, 2019: contributor

Still applicable - closing due to no-action
jgarzik closed this on Nov 4, 2019
MarcoFalke locked this on Dec 16, 2021

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