Ⅰ. Node Requirements Update
Comparison of ValidatorNode and FullNode
- For the AIT-2 node operators, a ValidatorNode is a necessary choice, and a FullNode is an optional selection. In other words, a FullNode is not required.
- Making sure there is a resource isolation between the Validator and the FullNode, which would help ensure smooth deployment of these nodes.
- Better deploy both types of nodes on the cloud to ensure the best availability and stability. Terraform support was provided for deploying the node on three cloud providers: GCP, AWS and Azure.
- Make sure that ports after either being accepted or rejected for the AIT-2 are closed.
Nodes need to have at least 300GB of disk space to ensure adequate storage space for load testing.
Bandwidth requirement: 1 Gbps
Ⅱ. Node Scoring Mechanism Content Update
Node Scoring Mechanism Changes
The key elements of node scoring mechanism changes from voting performance to proposer performance.
Proposer Selection Mechanism Changes
Improvements are made in the proposer election. In specific, enhanced the voting-power-weighted proposer election and statistics across the epochs.
III. Node Development Outlook
Enhance Proof-of-stake Consensus
- Stakers can choose validators based on past experience and personal preferences.
- To participate in transaction validation on the Aptos blockchain, validators must have a minimum required amount of staked Aptos tokens. The staked amounts proportionately affect the 2f +1 stake weighted PoAv during transaction dissemination as well as vote weights and leader selection during block metadata ordering. Validators decide on the split of rewards between themselves and their respective stakers. Stakers can select any number of validators in which to stake their tokens for a pre-agreed reward split. At the end of every epoch, validators and their respective stakers will receive their rewards via the relevant on-chain Move modules. Any validator operator with sufficient stake can freely join the Aptos blockchain. All parameters, including the minimum stake required, can be set by the on-chain enablement processes.
In the future, attention will be paid to those more powerful hardware, which would be the key part of optimizing the performance of a single node — — each validator will be considered as a cluster built into a single machine.
The Aptos blockchain will continue to optimize individual validator performance, as well as experiment with scaling techniques that add more validators to the network. Both directions have distinct trade-offs. Any blockchain with parallel execution capabilities can support additional concurrency by requiring more powerful hardware or even structuring each validator as a cluster of individual machines. However, there are practical limits to the number of global validators that is commensurate with the cost and complexity for validator operators. The rise and popularity of serverless databases in cloud services exemplify how few entities can efficiently deploy and maintain these types of complex distributed systems.
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BlockPower almost grew together with the establishment of the PoS consensus.
For instance, we have become Cosmos Genesis Validator since March 13, 2019.
BlockPower is one of the earliest participating service providers in Cosmos Network and Tezos Network. Furthermore, we have colorful experience in operating other networks like Juno, Osmosis, Aptos and so on (not only include Mainnet but also contain Devnets ). We have rich experience in emergency escalation, which reflects our instant crisis response capability.
BlockPower is actively participating in governance (like voting proposals and discussing in forums and discord channels), and what’s more, we have our own blog, disclosing information frequently.