Network Economics - Implement dynamic fee system

[ManuGowda]

Description

Introduce a dynamic fee system as a free fee market where the fixed fee for all transaction types will be removed and a minimum fee will be set in the protocol. This minimum fee will be given in terms of LSK per byte used by transactions and any transactions broadcast with a fee below that value will be rejected. For each transaction, it will be up to each user to choose the fee.

Motivation

• Replace static fee system by dynamic fee system
• Change to a byte-based block size limit
• Introduce minimum balance requirement for accounts
• Enable transaction invalidation

Acceptance Criteria

To conclude this epic, following LIPs must be implemented:

• Replace static fee system by dynamic fee system
• Establish block validity by applying transactions sequentially
• Change to byte-based block size limit
• Introduce minimum balance requirement for accounts
• Enable transaction invalidation

Tasks

Sprint 14

• Add nonce in the account class, and add nonce verification in the base transaction Add nonce in the account class, and add nonce verification in the base transaction #4850
• Add MIN_REMAINING_BALANCE static property in the base transaction, and verify after updating the account Add MIN_REMAINING_BALANCE static property in the base transaction, and verify after updating the account #4848
• Update commander to create new transactions Update commander to create new transactions #4888
• Add fee and nonce, and remove timestamp in the getBasicBytes calculation Add fee and nonce, and remove timestamp in the getBasicBytes calculation #4847
• Update fee validation with new minFeePerByte and nameFee properties Update fee validation with new minFeePerByte and nameFee properties #4846
• Remove number of transactions per block validation from lisk-chain and update maxPayloadLength constant Remove number of transactions per block validation from lisk-chain and update maxPayloadLength constant #4851
• Remove reward/fee destribution from the lisk-dpos library and move to the lisk-chain to calculate per block Remove reward/fee destribution from the lisk-dpos library and move to the lisk-chain to calculate per block #4849
• Remove transaction independent verify and total spending checks Remove transaction independent verify and total spending checks #4845

Sprint 15

• Add command to get fee estimation Add command to get fee estimation #4910