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Topic: any way to cancel an unconfirmed transaction? - page 2. (Read 5497 times)

staff
Activity: 3458
Merit: 6793
Just writing some code
running this from the debug window says method not found

bitcoind -zapwallettxes


Just run zapwallettxes (no dash, no bitcoind)
legendary
Activity: 1639
Merit: 1006
November 04, 2015, 09:18:27 PM
#9
running this from the debug window says method not found

bitcoind -zapwallettxes

legendary
Activity: 1639
Merit: 1006
November 04, 2015, 09:15:10 PM
#8
If you want to remove the transaction from your wallet, you can use the -zapwallettxes command line option:

https://en.bitcoin.it/wiki/Running_Bitcoin
Code:
-zapwallettxes=  Delete all wallet transactions and only recover those part of the blockchain through -rescan on startup


If most nodes have already heard about your first transaction, you may find it difficult to "double spend with a bigger txn fee ahead of this transaction".  Most nodes, miners, and mining pools will refuse to accept the new higher fee transaction while they still have the old transaction in their memory pool.

Even if you remove the transaction from your wallet, it doesn't guarantee that the transaction is "cancelled".  It's possible that a miner (or mining pool) that has already heard about the original transaction will confirm it before it is dropped from everyone's memory pool.

What do I put in
legendary
Activity: 1639
Merit: 1006
November 04, 2015, 09:13:54 PM
#7
If you want to remove the transaction from your wallet, you can use the -zapwallettxes command line option:

https://en.bitcoin.it/wiki/Running_Bitcoin
Code:
-zapwallettxes=  Delete all wallet transactions and only recover those part of the blockchain through -rescan on startup


If most nodes have already heard about your first transaction, you may find it difficult to "double spend with a bigger txn fee ahead of this transaction".  Most nodes, miners, and mining pools will refuse to accept the new higher fee transaction while they still have the old transaction in their memory pool.

Even if you remove the transaction from your wallet, it doesn't guarantee that the transaction is "cancelled".  It's possible that a miner (or mining pool) that has already heard about the original transaction will confirm it before it is dropped from everyone's memory pool.

What are the risks of doing this, can i corrupt my wallet in any way?
legendary
Activity: 3472
Merit: 4801
November 04, 2015, 09:08:32 PM
#6
If you want to remove the transaction from your wallet, you can use the -zapwallettxes command line option:

https://en.bitcoin.it/wiki/Running_Bitcoin
Code:
-zapwallettxes=  Delete all wallet transactions and only recover those part of the blockchain through -rescan on startup


If most nodes have already heard about your first transaction, you may find it difficult to "double spend with a bigger txn fee ahead of this transaction".  Most nodes, miners, and mining pools will refuse to accept the new higher fee transaction while they still have the old transaction in their memory pool.

Even if you remove the transaction from your wallet, it doesn't guarantee that the transaction is "cancelled".  It's possible that a miner (or mining pool) that has already heard about the original transaction will confirm it before it is dropped from everyone's memory pool.
staff
Activity: 3458
Merit: 6793
Just writing some code
November 04, 2015, 08:57:05 PM
#5
I have some unconfirmed transactions that are sitting for hours. I want them gone, what can i do?

5b788baaf29eb5da59b01704179d5ebfb05f0ea3dea79482b76984b2001a7c4c-000

I don't want it pushed, i want it gone....

What wallet did you send the transaction from?

Can I get my address private key off bitcoin-qt? 

Thinking a second strategy is to double spend with a bigger txn fee ahead of this transaction. If i can import my key into blockchain or some other wallet service i can double spend from there i think....

Open up the debug console, Help > Debug Window > console tab and then type into the box
Code:
dumpprivkey 
Where
is the address whose private key you want.

If the wallet has a password on it, do
Code:
walletpassphrase  120
where is the passphrase to your wallet BEFORE the command above. This will unlock your for 120 seconds so in that time you need to do the dumpprivkey to get the private key in Wallet Import Format.
legendary
Activity: 1639
Merit: 1006
November 04, 2015, 08:52:41 PM
#4
I have some unconfirmed transactions that are sitting for hours. I want them gone, what can i do?

5b788baaf29eb5da59b01704179d5ebfb05f0ea3dea79482b76984b2001a7c4c-000

I don't want it pushed, i want it gone....

What wallet did you send the transaction from?

Can I get my address private key off bitcoin-qt? 

Thinking a second strategy is to double spend with a bigger txn fee ahead of this transaction. If i can import my key into blockchain or some other wallet service i can double spend from there i think....
legendary
Activity: 1639
Merit: 1006
November 04, 2015, 08:51:19 PM
#3
I have some unconfirmed transactions that are sitting for hours. I want them gone, what can i do?

5b788baaf29eb5da59b01704179d5ebfb05f0ea3dea79482b76984b2001a7c4c-000

I don't want it pushed, i want it gone....

What wallet did you send the transaction from?

From Bitcoin-qt
legendary
Activity: 3472
Merit: 4801
November 04, 2015, 08:47:07 PM
#2
I have some unconfirmed transactions that are sitting for hours. I want them gone, what can i do?

5b788baaf29eb5da59b01704179d5ebfb05f0ea3dea79482b76984b2001a7c4c-000

I don't want it pushed, i want it gone....

What wallet did you send the transaction from?
legendary
Activity: 1639
Merit: 1006
November 04, 2015, 08:35:27 PM
#1
I have some unconfirmed transactions that are sitting for hours. I want them gone, what can i do?

5b788baaf29eb5da59b01704179d5ebfb05f0ea3dea79482b76984b2001a7c4c-000

I don't want it pushed, i want it gone....
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