system
1
Meeting Info
Agenda
GitHub Issue
Chloe
2
This week’s call notes:
1. Team update
- Update on Trin & Glados by Milos
- Improved bridge functionality
- Supported e2hs files for gossiping history
- Updated all bridges to use census / offer, enabling direct offer instead of gossip logic
- Added ephemeral header content type definition (not active yet)
- Ongoing PRs on Deneb proof generation & validation, and Electra consensus types
- Glados: Implemented protocol version tracking for peers
- Trin, Fluffy, and Shisui now all officially supports v1
- Update on Ultralight by ScottyPoi
- v1 is implemented but not publicly updated yet
- Continued working with DevOps to revamp boot node setup
- Awaiting ChainSafe to release an update that includes the bug fix discussed last week
- Update on Shisui by Qi Zhou
- Profiling ongoing to resolve performance issues (especially in comparison to Trin)
- Implemented new RPC endpoints to support missing JSON-RPC APIs
- Added caching for the highest compatible version to speed up lookups
- Update on Samba by Meld
- Focused on integration with Besu
- Currently managed to run Samba inside Besu locally, but still need further polishing & adjustments
- Aim to support Samba both within Besu and as a standalone solution
- Working toward deployment / testing of Samba in Besu across versions to evaluate performance and behavior
2. Discussion: Head-MPT State Network Spec
- Key problem
- How to update slices of state for nodes whose section had no updates in a given block
- Proposed Solution: Introduce block-level MPT diffs as a formalized content type
- Each block contains a diff from the previous block’s state
- Allow nodes to update and re-anchor their data to the latest MPT root, even if their slice didn’t change
- Enable a lightweight initial rollout - nodes can sync & operate without full account state storage initally
- Sync Mechanism
- New nodes can sync from the current trie and fast-forward using accumulated diffs
- Trie diffs will be the main data gossiped on the network
- While the protocol supports querying individual trie nodes, gossiping individual nodes isn’t the focus
- Implementation Roadmap for client teams
- 1st priority: Finalize ephemeral header support in the History Network
- 2nd priority: Push the State Network as close to the chain head as possible
- Afterwards: Define block-level diff data type, and implement diff generation & propagation
- Relevant PR/ issue: https://github.com/ethereum/portal-network-specs/pull/389