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· 2 min read
Marcin Szamotulski

High-level overview of sprint 44​

Bootstrap Peers​

In this sprint, we focused on developing bootstrap peers.

Thanks to the input from Samuel Leathers (IOG) and John Lotoski (IOG), we identified a possible improvement to bootstrap peers. A more detailed description is available here.

Cardano-Node-8.4.0 Release​

We also were responsible for the cardano-node-8.4.0-pre release. A final integration PR is currently being merged. We published new versions of ouroboros-consensus, cardano-api and cardano-cli.

Towards Typed Protocols 0.2.0.0​

We also updated the future typed-protocols-0.2.0.0 and its integration with cardano-node. This is towards our goal which we planned for the next quarter. The identified tasks are to fix breaking tests, and then measure and address possible performance regressions.

Tech Debt​

Mark Tullsen (Galois) submitted two more PRs: ouroboros-network-#4663, ouroboros-network-#4664. We provided feedback on their other pull requests: ouroboros-network-#4661 and ouroboros-network-#4660.

P2P adoption​

In the last two weeks, there was a regression in P2P adoption concerning the number of SPOs or stakes, although the number of overall P2P relays has increased. Karl Knutsson (Cardano Foundation) is investigating this issue. P2P relays

The following graphs show several different versions of relays running on the mainnet. The green line NodeToNodeVersionV10.True denotes P2P relays, which slowly increase over time. The V9 and earlier versions of the node-to-node the protocol indicates nodes version 1.35.x or earlier. node versions

Data has been kindly provided by Cardano Foundation and their mainnet monitoring infrastructure.

Open Source​

We are in the process of upstreaming our ffi to Windows Named Pipes API to the Win32 package, see [win32-220].

· 2 min read
John Lotoski

High level summary​

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

Some notable recent updates or improvements include:

  • Sanchonet environment was updated to 8.3.0-pre.
  • Cardano-parts now enables downstream consumers to spin up multiple cardano-networks per repository, an example of which is here.

Lower level summary​

Capkgs​

  • Add a readme, optimize flake inputs, improve nu and ruby parsing scripts: capkgs-compare

Cardano-ops​

Cardano-parts​

  • Utilize content addressed binaries to significantly improve eval, build and devShell performance: cardano-parts-pull-8
  • Add an aws flakeModule for obtaining ec2 specs, fix node.socket devShell error: cardano-parts-pull-10
  • Fix warns thrown during some builds and devShell usage: cardano-parts-pull-11
  • Add flakeModules and nixosModules in preparation for cardano-node grouped deployments: cardano-parts-pull-12
  • Enable group deployments by: adding several module, profile and role nixosModules; updating flakeModules; adding sops age secrets handling: cardano-parts-pull-13

Cardano-perf​

  • Modify the wireguard network from mesh to star, enable ICMP, enable Nomad raw_exec and add hydraJobs: cardano-perf-compare

Cardano-playground​

Cardano-world​

· One min read
Kostas Dermentzis

High level summary​

We have created a DBSync tag sancho-1-1-0 which can follow sanchonet. Also the team has ran a number of benchmarks and tests for the new options/flavours of DBSync and prepared a blogpost which summorises them, for downstream components.

Lower level summary​

  • Integration of node-8.3.x and support for Sanchonet on Conway #1498
  • Simplifications of new feautures #1496
  • Makes it impossible to restart DBSync with different schema options and adds tests for them #1466
  • CI fixes #1494#1491
  • Prepared a blogpost about different DBSync options blog

· 3 min read
Carlos LopezDeLara

2023-08-30 - 2023-09-12

High level summary​

Release of Cardano-node 8.3.0-pre for SanchoNet. Adds DReps to the Conway governance rules. Allows registration of DReps, delegation to DReps and voting on constitution action with DReps and SPOs. This release completes phase 2 of SanchoNet feature roll out plan

CLI continues on its migration to a era-based top-level commands. This sprint we moved text-view, key, query, genesis, node, stake-address, transaction and address into this new command structure. This is the initial migration, there is still some clean-up to do on future sprints.

We are moving the drep delegation-certificate to the stake-address command so delegating to a drep is done via stake-addres vote-delegation-certificate. Along the same lines, we are renaming stake-address delegation-certificate (delagating to a stake pool) to stake-address stake-delegation-certificate to distinguish between stake delegation to a pool and votes delegation to a drep. On top of that, there is a new type of delegation certificate to delegate (stake) to a stake pool and (votes) to a drep simultaneosuly stake-address stake-and-vote-delegation-certificate. Note that change is not included on 8.3 but will come on 8.4. Removing --conway-era flag from all the transaction sub-commands.

Update description fields in delegation certificates from Stake Address Delegation Certificate to respectively (Conway onwards):

  • Stake Delegation Certificate
  • Vote Delegation Certificate
  • Stake and Vote Delegation Certificate

cardano-cli​

cardano-api​

cardano-node​

cardano-testnet​

docs​

CI & project maintenance​

· 2 min read
Sebastian Nagel

High-level summary​

This week, the Hydra team improved the commit process with support for inline datums. They simplified the chain layer by refactoring how the chain state is persisted. Updates to the Hydra tutorial were completed, including CI workflows to keep it up-to-date. The team engaged in discussions with researchers about incremental commits & decommits, and drafted an architectural decision record for a resource-based API. They also explored simpler solutions for the upcoming network resilience feature.

What did the team achieve this week​

  • Support InlineScriptDatum in commit #1043
  • Refactored chain state persistency #1049
  • Completed tutorial updates (by adding CI and some cleanup) #997
  • Intersect Open Source committee meeting
  • Experimented with various models to better express the \"Network resilience problem\" to find a KISS solution for #188
  • Drafted and discussed incremental de-/commit features within team and with researchers #199 and #1057
  • Created ADR for a resource based overhaul of the API #1028

What are the goals of next week​

  • Meetup of Hydra & Mithril contributors in Nantes, France
  • Integrated cardano-api 8.15 to have GHC 9.6 support
  • A clear design for incremental commits (decommits are already understood)
  • An ADR for improving tx construction & observation to not need chain state