Feerate error for lightning nodes on same chain node

[MrHash]

I'm getting the error err=local/remote feerates are too different: remoteFeeratePerKw=12500 localFeeratePerKw=45000 when trying to create a channel between LND 0.10.4 and Eclair 0.4.1 where both nodes are listening to the same bitcoind 0.20.1 node with everything running in regtest mode on the same machine. Advise on how to normalize this would be appreciated.

[t-bast]

This indeed happens on regtest when opening from lnd to eclair, as we check the feerate (and reject feerates we disagree with) whereas lnd doesn't. If you open the channel from eclair this will work.

If you want it to work when opening from lnd, there's a configuration value you need to change in your eclair.conf.
Set this:

eclair.on-chain-fees.feerate-tolerance.ratio-low = 0.000001
eclair.on-chain-fees.feerate-tolerance.ratio-high = 1000000

With that setting you will tolerate pretty much any remote feerate.
See the config for details:

eclair/eclair-core/src/main/resources/reference.conf

Line 108 in 5a5a0b9

feerate-tolerance {

[MrHash]

ok that works thanks