Measuring minrelaytxfee across the Bitcoin network

[danielabrozzoni]

@1440000bytes

Some of them might be running version older than 2016 so they cannot send feefilter or disabled fee filter using a version older than 2021 with -feefilter config option.

That’s what I initially thought too However, the majority of the nodes that didn’t send a reply are running Core 27.x:

Feefilter None - 2135 nodes (7.6%)
User agents:
1040 nodes /Satoshi:27.0.0/
255 nodes /Satoshi:27.1.0/
221 nodes /Satoshi:29.0.0/
96 nodes /Satoshi:28.1.0/
51 nodes /Satoshi:28.0.0/
...

@0xB10C

so they should return a feefilter of 9170997. Maybe the nodes were in IBD when you connected to them?

Thanks a lot for the detailed explanation! Somehow it didn’t occur to me to simply git grep 9170997 in the codebase

Yes, those nodes were in IBD when I initially connected to them, I just checked the logs.

This also explains why some nodes replied with 9170997, but didn’t have 9170997 as minfeefilter when I later connected to them with Core to double-check. Thanks again!