Oversize transaction: Coin selection ignoring large unspent, coalescing small unspents #3631

issue jbreher opened this issue on February 5, 2014

jbreher commented at 5:53 PM on February 5, 2014: none

Through discussion on forum, I am led to believe that QT should should endeavor to use unspent outputs large enough to keep transaction below threshold that would incur additional transaction fee. This does not seem to be working for me. Please see

https://bitcointalk.org/index.php?topic=449385.msg4946463#msg4946463

for evidence of large unspent, able to cover entire transaciton, and

https://blockchain.info/tx/966b82abb713551355342c6764db56b57e28cb8eafbb823de530f2fc9b306d74?show_adv=true

for how the transaction was made up of seven small unspents instead.

Bitcoin-QT v0.8.6-beta on OS X 10.7.5
boborsomeoneelse commented at 4:38 AM on February 15, 2014: none

Litecoin with coincontrol shows lots of useful details for unspents. One missing feature that would help in this case would be if coincontrol were to show what unspents would be selected in automatic mode. (coincontrol isn't in a release version of bitcoin yet, only litecoin and special bitcoin builds)
laanwj added the label Bug on May 2, 2014
laanwj added the label Wallet on May 2, 2014
laanwj commented at 3:17 PM on February 16, 2016: member

Duplicate of "coin selection code does very badly in some cases #1643"
laanwj closed this on Feb 16, 2016
sidhujag referenced this in commit 0b977b4713 on Aug 5, 2020
DrahtBot locked this on Sep 8, 2021

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