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[Symmetrick]

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[hd49728]

Sometimes transaction won't be confirmed by miners because of low gas limits. People are talking about gas price and they forget about gas limit that is important for transactions on ETH network. In normal periods, before DeFi came to us, gas limit did not show its importance like now. Nowadays, to make sure transaction will be confirmed, people have to pay attention on 2 things: gas used (Gwei) and gas limit.

[GreatArkansas]

I have a simple question about canceling a transaction on Ethereum,
when we try to cancel a transaction and it is successfully canceled, to the transaction fee we were able to use when we first initiate the transaction will also get back in our wallet? Like nothing happened, no Ethereum was deducted on the wallet I used?

[cryptoaddictchie]

Great guide OP. Im always doing cancellation of transaction on eth and sending 0 with same nonce always work. I just never tried out replacing with higher gas.

I have a question though. What if using a higher gas fee but the transaction still failed? This is typically happening on uniswap even though using above slippage. Weird cause once failed it really eat your transaction fee in spite of high fee set and slippage. Any connection?

[tranthidung]

I run it with data for last 30 days. It is a very raw overview and I hope you can find something useful.

Gas_used and Gas limit (19/8/2020 - 19/9/2020) on ETH network

[Smartvirus]

Quite an examplinary post and the title connotes it perfectly well being a guide. As it takes steps to walk users through the process. Its a good one.

[Princejebs]

Clear and brief explanation, you deserve some accolade, I learnt today.
If you have ever been stucked with a pending transaction on ethereum network, you will value what OP has posted. The congestion on ethereum blockchain has made everything becomes difficult to use their network , I could remember last year how easy and fast it was to make a transaction but the recent rush on DeFi has made it hilarious. Requiring an average $8-$10 to make a transaction is ridiculous compare to the services of traditional banks who offer same service to move funds.
The delay on Eth2.0 has made the whole thing a mess. I prefer tron with USDT transactions.

[SquirrelJulietGarden]

This is a very useful information for Ethereum users because the transaction fees of Ethereum blockchain is not small anymore nowadays.
My suggestion is, we should check the gas fee before we make our transaction in Ethereum, check here : https://etherscan.io/gastracker
Our transactions should not pending for long if we follow the recommended gas fee there.

A few gas trackers you can use and make fee checkings.

ETHGasstation.info
https://ethgasstation.info/index.php
https://ethgasstation.info/txPoolReport.php
https://ethgasstation.info/calculatorTxV.php

Etherchain.org
https://www.etherchain.org/tools/gasPriceOracle

Gasnow.org
https://www.gasnow.org/

ETHGas.watch
https://ethgas.watch/

Etherscan.io
https://etherscan.io/gastracker

Ratimov, Octradism, wwzsocki and GreatArkansas have some topics on gas trackers and guides to manage transactions on ETH network, check fees, and save fees.

GAS NOW - New Price Gas Forecast Service
[GAS Price Aggregator] How to find the optimal gas price
ETH/ERC20 - Check and select good Gas price
TxStreet.com - live cryptocurrency transaction visualizer.
Blockchain Transaction Visualizer

[xOdiumNostrumx]

Solid guide for sure, but these services (like MM for example) should really try to provide one-click solutions to these kind of issues as most of crypto newcomers are not tech savvy enough to execute those mentioned processes/steps, even if they seems quite easy at first glance.

[blue Snow]

As I know we can cancel transaction if Pending status only. when sending with high fee then a bit confirmed success, we can't cancel or replace it anyway.

See more pending transaction https://etherscan.io/txsPending

[Fujiati]

As I know we can cancel transaction if Pending status only. when sending with high fee then a bit confirmed success, we can't cancel or replace it anyway.

See more pending transaction https://etherscan.io/txsPending

Yes true, it makes sense to replace a pending transaction with a new one, on the other hand, for a transaction that has been confirmed as successful, something that is processed in that transaction is already placed in the recipient's wallet.

[SquirrelJulietGarden]

Images are disabled. Please upload them in OP again, Ratimov.

I think the problems are from the links you took directly from curve platform and their guide documents. In the times of high and expensive transaction fees on Ethereum network, I believe more people will search for tutorial, find yours and read it. Some of them will have demand to cancel or replace ETH or ERC-20 token transactions.