Enable CPFP for channel close transactions

[saubyk]

Enable CPFP feature for channel close transactions on LND.

[hieblmi]

Would this also include the CPFP feature for regular on-chain transactions?

[saubyk]

Hi @hieblmi this ticket specifically addresses channel close transactions only.

Onchain receipts can also be bumped up, but it would be best to cover it in a separate ticket. Additionally, from your example above, it would not be advisable to try to bump up Loop Out on chain receives with CPFP, because the loop service automatically takes care of on-chain sweeps with RBF.
You can read more about it here:
https://blog.lightning.engineering/technical/posts/2019/04/15/loop-out-in-depth.html

[hieblmi]

Thank you @saubyk - I created a separate issue for this.
It looks like though the Loop service is only bumping the fee up to a user specified max value.
I for example set the value(block height) too low(~1sat/vbyte) hence the loop service is not RBFing/CPFPing anymore.

In these instances would it be advised to bump up manually?

Here's the text:

[ShahanaFarooqui]

Closing with PR #1394.