Fiber Dev Log 2025-10-02

[gpBlockchain]

Updates

Features

• Cross-chain multi-hops payment completed: feat: cch persistence #898, feat: cch separate service #901
• Completed the design and implementation of Atomic Multi-Path Payments (AMP) to enable payments split across multiple routes that settle atomically, while enhancing privacy: Atomic MPP design #911
• Fiber Dashboard: Added APIs for monitoring of the entire channel lifecycle: feat: add channel full state monitor cryptape/fiber-dashboard#9

Improvements & Fixes

• Connection stability: fixed disconnection caused by CheckPeerInit: Fix peer reconnect during CheckPeerInit #899
• Contracts updated: modified contracts to use spawn and added support for batch unlocking during forced channel closure: settlement delay epoch fix and batch unlock  fiber-scripts#22
• CI optimization: improved GitHub action workflow: https://github.com/chenyukang/fiber/tree/optimize-ci-workflow
• Performance enhancements:
  • Rewrite retryable tasks in channel actor #906
  • Perf: use BinaryHeap for retryable tasks #904
  • Add e2e performance test #910
  • Assume node support mpp when node is not synced into graph #903
  • Assume node support mpp when node is not synced into graph #903

Ongoing Work

• Surveying liquidity solutions
• Analyzing payment scenarios
• Investigating long-running tasks in Fiber’s actor model using metrics crates to report data
• Extending support for new contracts
• Resolving remote_commitment_points issue: Identified and investigated high memory/CPU usage due to untimely deletion logic
• Continuing debugging performance bottlenecks