so every node that uses the default size of 300MB will drop the transactions that have fees of less than 23.2sat/vb but nodes use custom mempool size so the transaction will likely stay longer because it stays in some nodes.
But not all transactions that exceed the mempool size will be dropped, your transactions could be re-broadcast by your wallet or other nodes. 
Topic: Have a question about cancel a transaction - page 2. (Read 266 times)
@OP you can replace your transactions, but make sure the next transactions you use the same inputs like your previous transactions.
Another question: so it means the transaction may be dropped if the fee is too low?
Yes, and that is what is called purging. currently, the value is
so every node that uses the default size of 300MB will drop the transactions that have fees of less than 23.2sat/vb but nodes use custom mempool size so the transaction will likely stay longer because it stays in some nodes.
thank for the detailed explanation. I will go to take a look at the RBF feature
To use RBF feature, your transaction must be RBF opt-in.Did you broadcast your transaction initially with RBF opt-in? If wallet you use has an opt-in RBF, your transaction will have it with default setting.
If you are unsure, you can copy and paste your transaction id to https://blockchair.com/bitcoin and click on Additional information and see at a row for RBF Enabled
If your transaction is RBF opt-in, it will show as Yes.
Thank you very much.
Another question: so it means the transaction may be dropped if the fee is too low?
If the transaction fee is too low and unfortunately the mempool congestion doesn’t reduces such that the transaction fee rate comes down to your range of fee then the transaction will be dropped. The default time is (
Look into ViaBTC accelerator to see if you meet the conditions to use the free acceleration service
thank for the detailed explanation. I will go to take a look at the RBF feature
Thank you very much.
Another question: so it means the transaction may be dropped if the fee is too low?
You can use the above method if you wish use a self custodial wallet that allows fee bumping, but if it doesn’t then you will have to wait for the transaction to either be confirmed or be dropped; if the fee set is low.
Thank you very much.
Another question: so it means the transaction may be dropped if the fee is too low?
hello, I have a question about how to cancel a transaction which already commited to mempool but not confirmed?
if there is no way or tool to cancel a tx, is it need to develop one?
if there is no way or tool to cancel a tx, is it need to develop one?
If you use a wallet that supports the RBF feature, you can cancel transactions that have been broadcast to your own address by increasing the fees. Apart from that, to speed up transactions, you can also use the RBF feature to increase transaction fees. To be able to do this, you must have remaining bitcoins in your wallet, otherwise you cannot do it
To see how RBF works, you can check out this thread : https://bitcointalksearch.org/topic/bitcoin-open-source-wallets-that-support-replace-by-fee-rbf-5422456
To be clear, there is nothing like canceling a bitcoin transactions, what you can do is to double spend it to another or same address with a higher transaction fee than the initial one set for the transaction. This act is dependent on a the type of wallet you use, if the transaction wallet you use has the RBF bumping feee then you can double spend the already sent transaction that is if it hasn’t been confirmed yet.
What you do to like cancel that transaction is to spend it to the same address it is coming from with a higher transaction, this is what the cancel transaction feature you see on wallets do. But theoretically you can cancel an already signed and broadcasted bitcoin transaction.
You can use the above method if you wish use a self custodial wallet that allows fee bumping, but if it doesn’t then you will have to wait for the transaction to either be confirmed or be dropped; if the fee set is low.
What you do to like cancel that transaction is to spend it to the same address it is coming from with a higher transaction, this is what the cancel transaction feature you see on wallets do. But theoretically you can cancel an already signed and broadcasted bitcoin transaction.
You can use the above method if you wish use a self custodial wallet that allows fee bumping, but if it doesn’t then you will have to wait for the transaction to either be confirmed or be dropped; if the fee set is low.
hello, I have a question about how to cancel a transaction which already commited to mempool but not confirmed?
if there is no way or tool to cancel a tx, is it need to develop one?
if there is no way or tool to cancel a tx, is it need to develop one?
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