CKB Dev Log 2024-03-20

[anipenguin]

📸 by @contrun

Wir müssen wissen — wir werden wissen!

Updates

Features

• Rich-Indexer: Introduces enhanced query capabilities by supporting complex queries through a relational database. This feature aims to complement the original indexer with a broader query range.
  • feat: add rich-indexer which is another built-in indexer based on relational database #4224
• Cobuild: Implements Cobuild support for Omnilock, facilitating collaborative transaction creation.
  • Implement Cobuild integration and Solana support omnilock#3
• Reproducible Packaging with Guix Docker: Establishes a reproducible build environment for CKB using the Guix Docker container, ensuring consistent builds across different environments.
  • https://github.com/nervosnetwork/ckb/tree/zhangsoledad/guix

Improvements

• Asynchronous Block Handling: Upgrades block downloading and verification processes to asynchronous operations, significantly improving the efficiency of the synchronizer and ChainService.
  • Blocks are now immediately stored to database (instead of after ordering all the blocks downloaded first)
  • Asynchronous Block Download and Verification #4365
• Conflict Resolution Algorithm: Introduces a new algorithm to resolve conflicts when a cell is used both as cell deps and inputs across different transactions, enhancing the system's reliability.
  • Evict possible cell ref txs before submitting cell consuming transaction #4363

Fixes

• Transaction Pool Performance: Addresses a performance degradation issue under specific conditions to improve transaction pool efficiency.
  • Fix the performance issue caused by track_entry_statics #4382

In Pipeline…

• Payment Channel Network (PCN) for CKB
  • Aims to facilitate fast and efficient transactions between parties via off-chain payment channels. Key developments include:
    • Drafting of the exchanged message format.
    • Lock script contract code implementation.
    • P2P messages for channel operations.
    • Ongoing research on cross-chain payment channels.
• CKB Transaction CoBuild Protocol
  • Describes an off-chain process for collaborative CKB Transaction creation among multiple parties. Upcoming work includes:
    • Development of a Rust SDK for Cobuild.
    • Refinement of the ckb-transaction-cobuild proof of concept.
    • Big Refactor According to Updated Spec cryptape/ckb-transaction-cobuild-poc#44
• Updated Spawn Syscall
  • Focuses on integrating a new design for the spawn syscall, which includes:
    • Adding new unit tests.
    • Refactoring code to accommodate the new design.
    • Continuing development on snapshot integration for seamless transition.
• Performance Improvements
  • Targets optimization of memory usage and synchronization speed, including:
    • Reducing the memory footprint during block synchronization.
    • Investigating approaches to enhance sync speed.
    • Addressing a known issue with transactions generated by ckb-cli.
    • Transaction generated by ckb-cli deploy gen-txs is rejected ckb-cli#575