For CPFP you'll have to send the change output with higher fee. For RBF I'm not entirely sure (haven't tested) but there's someone have a tool for it on this thread.
AFAIK for CPFP you need to have a mining pool that has it implemented. I'm not aware of such (besides Eligius ?).Isn't CPFP built into Core now (as of 0.13.0)?
See here:
- snip -
Mining transaction selection ("Child Pays For Parent")
The mining transaction selection algorithm has been replaced with an algorithm
that selects transactions based on their fee rate inclusive of unconfirmed
ancestor transactions. This means that a low-fee transaction can become more
likely to be selected if a high-fee transaction that spends its outputs is
relayed.
- snip -
0.13.0 Change log
This overview includes changes that affect
behavior, not code moves, refactors and string updates. For convenience in locating
the code changes and accompanying discussion, both the pull request and
git merge commit are mentioned.
- snip -
Mining
- snip -
- - #7600 `66db2d6` Select transactions using feerate-with-ancestors (sdaftuar)
- snip -
Mining transaction selection ("Child Pays For Parent")
The mining transaction selection algorithm has been replaced with an algorithm
that selects transactions based on their fee rate inclusive of unconfirmed
ancestor transactions. This means that a low-fee transaction can become more
likely to be selected if a high-fee transaction that spends its outputs is
relayed.
- snip -
0.13.0 Change log
This overview includes changes that affect
behavior, not code moves, refactors and string updates. For convenience in locating
the code changes and accompanying discussion, both the pull request and
git merge commit are mentioned.
- snip -
Mining
- snip -
- - #7600 `66db2d6` Select transactions using feerate-with-ancestors (sdaftuar)
- snip -
Go to the console and enter abandontransaction txid (replace txid with your tx) or run bitcoin-qt.exe with -zapwallettexes command.
-snip-
Wouldn't it be easier to import the private key into another wallet and attempt a double spend with a high fee? This should save time.-snip-
Why would it be faster to do all of the following than just running "abandontransaction" or "bitcoin-qt.exe with -zapwallettexes command line option"?
- Find and export the necessary private key
- Set up a whole new wallet
- Import the necessary private key
