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Use fallback feerates on testnets #3233

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Merged
t-bast merged 1 commit into from
Jan 8, 2026
Merged

Use fallback feerates on testnets #3233

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10 changes: 5 additions & 5 deletions eclair-core/src/main/resources/reference.conf
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Expand Up @@ -270,11 +270,11 @@ eclair {
smoothing-window = 6 // 1 = no smoothing

default-feerates { // the following values are in satoshis per byte
minimum = 5
slow = 5
medium = 10
fast = 20
fastest = 30
minimum = 1
slow = 2
medium = 5
fast = 10
fastest = 20
}

// confirmation priority for each transaction type, can be slow/medium/fast
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6 changes: 5 additions & 1 deletion eclair-core/src/main/scala/fr/acinq/eclair/Setup.scala
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Expand Up @@ -22,7 +22,6 @@ import akka.actor.typed.scaladsl.adapter.{ClassicActorRefOps, ClassicActorSystem
import akka.actor.{ActorRef, ActorSystem, Props, SupervisorStrategy, typed}
import akka.pattern.after
import akka.util.Timeout
import fr.acinq.bitcoin.scalacompat.Crypto.PublicKey
import fr.acinq.bitcoin.scalacompat.{Block, BlockHash, BlockId, ByteVector32, Satoshi, Script, ScriptElt, addressToPublicKeyScript}
import fr.acinq.eclair.NodeParams.hashFromChain
import fr.acinq.eclair.Setup.Seeds
Expand Down Expand Up @@ -250,7 +249,12 @@ class Setup(val datadir: File,
feeProvider = nodeParams.chainHash match {
case Block.RegtestGenesisBlock.hash | Block.SignetGenesisBlock.hash =>
FallbackFeeProvider(ConstantFeeProvider(defaultFeerates) :: Nil, minFeeratePerByte)
case Block.Testnet3GenesisBlock.hash | Block.Testnet4GenesisBlock.hash =>
// On testnet, we fallback to default feerates when there aren't enough block data to estimate fees.
val smoothFeerateWindow = config.getInt("on-chain-fees.smoothing-window")
FallbackFeeProvider(SmoothFeeProvider(BitcoinCoreFeeProvider(bitcoin, defaultFeerates), smoothFeerateWindow) :: ConstantFeeProvider(defaultFeerates) :: Nil, minFeeratePerByte)
case _ =>
// On mainnet, we always use blockchain data to estimate fees and ignore configured fallbacks.
val smoothFeerateWindow = config.getInt("on-chain-fees.smoothing-window")
FallbackFeeProvider(SmoothFeeProvider(BitcoinCoreFeeProvider(bitcoin, defaultFeerates), smoothFeerateWindow) :: Nil, minFeeratePerByte)
}
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