Setting minrelaytxfee to 1/10th of the default gives an error that it is "too high". #22756

issue rebroad opened this issue on August 20, 2021

rebroad commented at 2:41 PM on August 20, 2021: contributor

Setting minrelaytxfee=100 in bitcoin.conf gives the following error on start up:-

Not sure how setting it to LOWER than the default can cause a "too high" error.
rebroad added the label Bug on Aug 20, 2021
MarcoFalke commented at 2:46 PM on August 20, 2021: member

100 BTC/kvB seems high
MarcoFalke closed this on Aug 20, 2021
fanquake removed the label Bug on Aug 20, 2021
rebroad commented at 11:32 AM on August 22, 2021: contributor

100 BTC/kvB seems high

but the default is 1000 - and this surely does not mean 1000 BTC/kvB
ghost commented at 12:05 PM on August 22, 2021: none

default value for minrelaytxfee is 0.00001
ghost commented at 12:30 PM on August 22, 2021: none
```
minrelaytxfee is FormatMoney(DEFAULT_MIN_RELAY_TX_FEE))
```
https://github.com/bitcoin/bitcoin/blob/e9d6eb1b8071805cec1cc4e1352a13a7adc55ca8/src/init.cpp#L530
```
DEFAULT_MIN_RELAY_TX_FEE is 1000
```
https://github.com/bitcoin/bitcoin/blob/e9d6eb1b8071805cec1cc4e1352a13a7adc55ca8/src/validation.h#L63
```
FormatMoney(1000) is 0.00001
```
https://github.com/bitcoin/bitcoin/blob/e9d6eb1b8071805cec1cc4e1352a13a7adc55ca8/src/util/moneystr.cpp#L12
```
COIN = 100000000

quotient = 0
remainder = 1000

%08d = 00001000
%d = 0

Before trim = 0.00001000

After trim = 0.00001
```

jonatack commented at 12:58 PM on August 22, 2021: member

Right, the default is 0.0001 BTC/kvB

$ ./src/bitcoind -h | grep -A2 minrelay
  -minrelaytxfee=<amt>
       Fees (in BTC/kvB) smaller than this are considered zero fee for
       relaying, mining and transaction creation (default: 0.00001)

fanquake locked this on Aug 23, 2021

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