YGGDRASH Release Note — Sprint 0.0.10

Hello, World!

Greetings from the YGGDRASH Team.

We are here to update on the Sprint 0.0.10 to our YGGDRASHers.

Details of the updates can be found on Github :
https://github.com/yggdrash/yggdrash/releases/tag/v0.0.10

YGGDRASH Release Note

Overview

• Implemented the PBFT consensus algorithm
• Implemented Multi-Contract
• Improved node discovery

Consensus

• Designed and implemented the validator module for validators consensus

— Designed the module architecture for supporting many consensus algorithms.(PoA, DPoA, DPoS, etc.)

— Implemented functions for checking status and proposing, agreeing, confirming, storing blocks

• Implemented the PBFT consensus algorithm

— Implemented functions for creating & exchanging consensus messages(PrePrepare, Prepare, Commit, ViewChange)

— Implemented protocols and algorithms for consensus

• Designed and implemented unit modules for delegating(voting) validator nodes

— Designed transaction formats and state stores for voting

— Implemented functions for registering, updating, agreeing, reading states

Contract

• Changed the contract interface
• Implemented Multi-Contract

— Change branch specifications

• Added a provisional execution state for a contract

— Added block, transaction temporary execution

— Added block integrity verification

— Save changes to the contract results

• Added a contract manager

— Add and delete local node contracts manage storage

— Added contract validation

— Added a contract ABI(JSON) call

• Changed the method of calling the contract query method

Node/Network

• Stabilized and verified the P2P network
• Added a network filter to block malicious nodes
• Changed peer-related terms
• Improved node discovery

— Removed the dependency of node discovery and peerTable on nodes

— — Changed peerTable, dht, node, node status structure, and dependency

— Implemented PeerTask for peer and channel management

— — 4 scheduler implementations

— — Refresh (Kademlia lookup)

— — Revalidate (verify the network status of peers from a random peerbucket and replace or delete)

— — CopyNode (only the peers that are kept longer than the minimum time is stored in the database)

— — HealthCheck (channel management)

• Improved logging

— A node monitoring system has been built

— ElasticSearch + Fluentd + Kibana

If you have any questions, please email us at info@yggdrash.io. We will get back to you in an orderly fashion.
Thank you for your ongoing support and faith in YGGDRASH Project.

Team YGGDRASH

Official YEED Smart Contract Address:
0xca2796f9f61dc7b238aab043971e49c6164df375

YGGDRASH Official channels

• Github: https://github.com/yggdrash
• Gitter: https://gitter.im/yggdrash/yggdrash
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• Telegram: https://t.me/YggdrashEng
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