- What is the mempool?
The mempool is the collection of transactions each node keeps track of that have yet to be added to the blockchain. Miners us the mempool to construct the collection of transactions that they will add to the next block.
- What happens if the miners can’t keep up with the rate of the new transaction?
The mempool will grow and the transaction fees will increase and some transactions may not be added if they do not provide enough fee to the miner.
- How does a growing mempool effect transaction fees?
A growing mempool results in increasing transaction fees since transactions will have to compete with each other in order to be picked up by a miner