Couldn't you also try doing a double spend with a higher fee? That way the second spend actually gets processed and the first one never confirms? Or am I wrong?
He could try doing an RBF of the second transaction with an even higher fee and that would become a CPFP for the first. That may work.
Thx u reply.
First all I want to knows,if I do nothing just wait,my btc can safe or lost?
Your Bitcoin is safe. If the transaction is "forgotten" then the Bitcoin will reappear in your wallet as if you never spent it. If it confirms, then the Bitcoin will go to the recipients.
And how long the network "forget" the transactions?
It usually takes 2 to 4 days. It will also depend on whether anyone is rebroadcasting your transactions.
And is blockchain.info wallet support the Replace-By-Fee transaction type?How can do it?
No, bc.i unfortunately does not support RBF transactions. I would say that you could try my transaction fee booster program but that unfortunately will not work because blockchain.info does not allow you to sign raw transactions nor export your private keys.