Variable NodeConfig.min_fee_pct
Minimum fee percentage for transactions to be added to the pool
When accepting incoming transactions, only accept transactions where the
fee is at least min_fee_pct
percent of the current transaction pool.
This setting can be tuned to prevent DoS attack.
Setting this to 0 sets the mempool to be unlimited in size.
Example
The transaction pool has two transactions, TxA
which is 1000 bytes and
has a fee of 15_000_000 (fee rate: 15_000) and another one which is 200
bytes and comes with a fee of 1_000_000 (fee rate: 5_000).
Hence, the average fee rate of the transaction pool is 10_000 / byte.
(Fees are currently not weighted).
If this is set to 110, and a transaction of 100 bytes arrives,
the transaction would need to have at least (1.1 * (10_000 * 100))
,
or 1_100_000 in fees, to make it to the pool.
On the other hand, if this is set to 50, then the transaction will only
need to come with 500_000 of fees (0.5 * (10_000 * 100)
).