| Property | Description | Default |
|---|---|---|
| FutureNonceRetention | Defines how much into the future transactions are kept. | 256 |
| GasLimit | Max transaction gas allowed. | null |
| HashCacheSize | Max number of cached hashes of already known transactions.It is set automatically by the memory hint. | 524288 |
| PeerNotificationThreshold | Defines percentage of peers receiving the tx gossips. | 5 |
| Size | Max number of transactions held in mempool (more transactions in mempool mean more memory used | 2048 |