Community Update 94

Owned by Rao Bhamidipati
Last updated: Oct 16, 2019

General

  • Release
    • Node version 0.9.15 is the current release RNode-0.9.15 release plan
    • Testnet is currenty running rnode version 0.9.15

    • The 0.9.15 includes the new type safe API (instead of Either), some fixes for Long Proposal Times Issue, Offchain-data API (events API) improvements and other incremental progress in features discussed below.

  • Sprint 39 in progress
    • Main focus is on reaching Testnet 3 (a) Cost accounting  (b) Long proposal times - Fairness Constraint and other imrpovements (c) RSpace improvements in off-chain data API (d) multisig features (e) ongoing work in Casper tests independent of network layer (f) Ongoing work in Planning and implementation for Network safety, reliability and hardening
    • Cost accounting
      • Design and Scope of work documented at https://gist.github.com/ArturGajowy/73e481767548b084a8e5d7c19bb1f70c
      • Implementation in progress for these preliminary tasks needed for implementing the main portions of cost accounting:
      • All the above tasks are ticketed and assigned - These tickets are more detail level arrived at based on analysis of prior tickets in cost accounting
      • The 'System Deploy' construct, RCHAIN-3281 - Getting issue details... STATUS  necessary for cost accounting, is implemented and getting ready for review. Once reviewed, corrected and merged, this should unblock epic  RCHAIN-3631 - Getting issue details... STATUS
      • Remaining chunks of work in cost accounting are (a) writing the charging logic (b) correcting existing tests to match the new code (c) writing additional tests (d) writing/changes to integration tests 
    • Reduce long proposal times: 
      • Initial implementation of a (simple round robin) fairness constraint as an additional mechanism to address long proposal times. Code is completed, unit tests being written. PR getting ready for review. Once it is reviewed, corrected and merged, we will observe impact and possibly design additional variations later. A generic solution is available.
      • Exploring additional improvements to existing synchrony constraints.
      • Investigating improvements to other bottlenecks e.g. in slow finalization  RCHAIN-3872 - Getting issue details... STATUS  , ignore invalid blocks in toposort https://github.com/rchain/rchain/pull/2757 etc.
      • We continue to explore various test parameters and more complex contracts, to both test the stability of this issue and make it manifest sooner if it exists.
    • Rspace
      • In Progress - In RSpace, an API is implemented for DAG discovery and block discovery, to enable an alternative to ListenForData@Name (Off-chain observability of deploy results). Relevant tickets are  RCHAIN-3760 - Getting issue details... STATUS   RCHAIN-3661 - Getting issue details... STATUS  and   RCHAIN-3762 - Getting issue details... STATUS  and  RCHAIN-3812 - Getting issue details... STATUS  
      • Merged - Investigating failing integration tests in off-chain-data https://github.com/rchain/rchain/pull/2476 . This pertains to Slashing blocks that arrived with deploys whose signatures can not be verified  RCHAIN-3214 - Getting issue details... STATUS
      • Lot of knowledge transfer sessions and hand-offs to new developers in RSpace. Potential Future improvements identified RNode feature gaps 
      • A simplistic Block Explorer is implemented https://github.com/rchain/rchain/pull/2725  Documentation on how to use it at Data reporting
    • In Review - Implementation of mult-sig vault features is ongoing as detailed in  RCHAIN-3392 - Getting issue details... STATUS   RCHAIN-3196 - Getting issue details... STATUS   RCHAIN-3223 - Getting issue details... STATUS  and  RCHAIN-3773 - Getting issue details... STATUS .  Additional changes being made to the code based on design discussion. Next step is to write tests for this.
    • Refactoring, Optimizations and bug fixes - ongoing 

Mercury requirements and acceptance criteria

Blockers to testnet-3

  • TBD

Risks to code completion for Mercury

  • Evaluating backlog vs current velocity 

Developer website

Date