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

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jbreher opened this issue Feb 5, 2014 · 2 comments
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@jbreher
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@jbreher jbreher commented Feb 5, 2014

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

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@boborsomeoneelse boborsomeoneelse commented Feb 15, 2014

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 laanwj added Bug labels May 2, 2014
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@laanwj laanwj commented Feb 16, 2016

Duplicate of "coin selection code does very badly in some cases #1643"

@laanwj laanwj closed this Feb 16, 2016
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