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sweep: isolate min fee rate bucket

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Joost Jager 2019-12-09 12:17:58 +01:00
parent dc6c4637b6
commit 1c93e9e03d
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GPG Key ID: A61B9D4C393C59C7
1 changed files with 9 additions and 1 deletions
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10
sweep/sweeper.go
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@ -714,7 +714,15 @@ func (s *UtxoSweeper) sweepCluster(cluster inputCluster,
func (s *UtxoSweeper) bucketForFeeRate(
feeRate chainfee.SatPerKWeight) int {
return int(feeRate-s.relayFeeRate) / s.cfg.FeeRateBucketSize
// Create an isolated bucket for sweeps at the minimum fee rate. This is
// to prevent very small outputs (anchors) from becoming uneconomical if
// their fee rate would be averaged with higher fee rate inputs in a
// regular bucket.
if feeRate == s.relayFeeRate {
return 0
}
return 1 + int(feeRate-s.relayFeeRate)/s.cfg.FeeRateBucketSize
}
// clusterBySweepFeeRate takes the set of pending inputs within the UtxoSweeper