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· One min read
Jean-Philippe Raynaud

High level overview​

This week, the Mithril team completed the adaptation of the Mithril client as a library. They progressed in decentralizing the Mithril networks with the peer-to-peer (P2P) networking proof-of-concept, achieving the implementation of P2P signatures broadcast with the relay in the end-to-end tests. Additionally, the team completed the proof-of-concept for the deterministic computation of the UTXO/transactions set from the immutable files.

Finally, they continued addressing some performance issue associated with the 'release-mainnet' aggregator, and fixed a bug with the tool used to process batch certificate hash re-computation.

Low level overview​

  • Worked on the issue Prototype a P2P relay with libp2p #1300
  • Completed the issue Light Wallet: Release mithril-client library #1311
  • Completed the issue Light Wallet: Compute deterministic Cardano UTxO/transactions set PoC #1283
  • Completed the issue release-mainnet aggregator is unreachable #1310
  • Completed the issue Fix certificate hashes re-computation in aggregator #1343
  • Completed the issue Remove unstable tag in unstable release #1235
  • Worked on the issue Enhance aggregator REST API performances #1327
  • Worked on the issue Signer runtime is stuck for some SPO #1312

· 2 min read
Carlos LopezDeLara

2023-11-01 - 2023-11-14

High level summary​

CARDANO-NODE

CARDANO-CLI

  • Improve golden tests
  • Clean-up of conway era commands

cardano-cli​

cardano-api​

cardano-node​

cardano-testnet​

docs​

CI & project maintenance​

· One min read
James Chapman

The team works on applied research and consulting in formal methods that is directly applicable to evidence based engineering in Core Tech and beyond.

High level summary​

The team is currently formalising mini protocols and working on a performance modelling paper

Details​

  • completing work on chain sync mini-protocol

  • specifying correctness property of chain sync mini-protocol

  • creating diagrams for JLAMP paper

  • finalising structure of JLAMP paper

· 2 min read
Sebastian Nagel

High-level summary​

The last two weeks, the Hydra team achieved several milestones. They published the monthly report for October, providing updates on project developments. The team delivered a presentation and workshop at the Cardano Summit, contributing to community engagement. They implemented a \"dirt road\" solution for the \"Ignored init tx\" notification and moved the hydra-poll example project to a dedicated repository. Additionally, the team built a hydra-chain-observer tool for Hydra Heads, updated the toolchain to GHC 9.6.3, and made various improvements to tooling and code formatting. They addressed specific issues, such as fixing the gen-hydra-keys command and resolving concerns with the rewritten hydra-tui. The team also enhanced the hydra-cluster smoke test suite by fetching network configurations dynamically. Lastly, they actively reviewed pull requests and architectural decision records from the community, including contributions from SundaeSwap. An experiment, the Hydra tally, was completed and successfully deployed to the mainnet by the Cardano Foundation.

What did the team achieve this week​

  • Published the monthly report for october
  • Given a presentation / workshop at the Cardano summit #1109
  • Dirt road implementation for \"Ignored init tx\" notification #529 (without stateless observation)
  • Completed and moved hydra-poll example project into a dedicated repository
  • Built a first version of a chain observation tool for Hydra Heads #1096
  • Switched toolchain to GHC 9.6.3 and various improvements on tooling and code formatting #1135#1152#1151#1154
  • Fix gen-hydra-keys command to not overwrite existing keys #1136
  • Fixed the rewritten hydra-tui#1113#1137
  • Fetch network configurations instead of packaging them into hydra-cluster (smoke) test suite #1156
  • Reviewing PRs and ADRs from the community (SundaeSwap) #1118#1157
  • Hydra tally experiment (Cardano Foundation) deployed to mainnet

What are the goals of next week​

  • Tackle reported bugs
  • Shepherd contributed off-line mode PR to the main codeline
  • Improve chain observation tool to include more data and refactor existing code towards more stateless observation
  • Start work on incremental decommits

· 3 min read
John Lotoski

High level summary​

The SRE team continues work on cardano environment improvements and general environment maintenance.

Some notable recent changes, updates or improvements include:

  • Cardano-world testnets of preprod, preview, sanchonet and some private test chains have largely completed their migration to the cardano-playground stack

Lower level summary​

Capkgs​

Cardano-parts​

  • General migration support PR for cardano-world to cardano-playground cardano-parts-pull-18
    • Iohk-nix and iohk-nix-ng were updated support the migration of cardano-world networks to cardano-playground
    • Sops-secrets dependent systemd services were fixed to ensure restart upon sops secrets changes
    • Db chain utilities (db-{analyser,synthesizer,truncater}) had -ng variants created to operate on both release and pre-release network chains
    • The profile-cardano-postgres nixos module received preset variables and prepared statements via pgsqlrc for faster and easier analysis of network state
    • The flakeModule jobs now has support for the cardano-cli era command in each of the job scripts by passing the $ERA_CMD variable
    • Default cardano-node-ng package is now 8.6.0-pre, dbsync on sanchonet is now sancho-2-2-0
    • For scripts using a nix-shell shebang, the cardano-parts devShell menu can be disabled from injecting itself into stdout by passing NOMENU=true
    • Template updates include:
      • Adds optional TF AZ declaration on ec2 resources
      • Adds a cardano node p2p dashboard to the grafana cloud stack
      • Adds a dbsync pool performance analysis query
      • Updates python distribute and delegation scripts from world for playground compatibility
      • Starts a python script lib to reduce shared code among the python scripts
      • Several justfile improvements and new recipes
    • More detail is available in the PR description
  • Update submit action script for 8.6 cardano-parts-pull-19
  • Update scripts for 8.6.0-pre cardano-parts-pull-21
    • Fixes subcommand names based on ERA_CMD
    • Adds deposits to some commands
    • Separates CC cold/hot key generation as host authorization has to occur after action is approved
    • CC voting enabled in vote job

Cardano-playground​

  • Migration PR to largely complete the network migration from cardano-world to cardano-playground: cardano-playground-pull-5
    • Adds re-spun private chain network
    • Migrates shelley-qa chain network from world
    • Justfile improvements and new recipes
    • Improve concurrent environment chain support
    • More detail is available in the PR description

Iohk-nix​

  • Migration to play: iohk-nix-pull-561
    • Migrate cardano-lib networks from world.dev.cardano.org to play.dev.cardano.org
    • Remove deprecated cardano-lib p2p network environment
    • Update sanchonet chain with respin changes
    • Update private chain with respin changes
    • Bump private and shelley-qa chains to sanchonet equivalent conway genesis
    • Bump preview, preprod chains to sanchonet equivalent conway genesis for node 8.6.0-pre pre-release testing

Sanchonet-demo​