Skip to main content

· 2 min read
Alexey Kuleshevich

High level summary​

Broadly speaking the Ledger team focused on a few main areas of Conway era:

  • Creation of voting state snapshots in order to correctly delay ratification for one epoch
  • Validation of the Governance Actions sequencing and ordering
  • Proper expiry of DReps and Proposal Procedures
  • Expanding Conway Genesis functionality
  • Utilization of some of the new Protocol Parameters in ledger validation rules

Low level summary​

Conway era​

  • pull-3659 - Validate Network for ProposalProcedure and TreasuryWithdrawal
  • pull-3637 - Avoid using sequence of tuples, by adding GovActionId to GovActionState
  • pull-3651 - Inactive DReps
  • pull-3664 - Track proposal expiry
  • pull-3668 - Add min committee size predicate to NewCommittee
  • pull-3669 - Add Proposal deposit check against PParam
  • pull-3676 - Fix inactive PoolStake not counting as Drep Stake
  • pull-3635 - Make snapshots of GovActionsState
  • pull-3670 - Validate previously enacted govAction
  • pull-3694 - Improve error reporting on the positive coin decoder
  • pull-3674 - Added RATIFY thresholds
  • pull-3684 - Add proposal delaying, remove predicate failure from ENACT
  • pull-3688 - DRep Refunds and update evalTransactionBalance

Improvements and releasing​

  • pull-3677 - Minor patch that fixes the DRep distribution computation
  • pull-3686 - Post patch release fixup
  • pull-3695 - Changelog for cardano-node-8.3 release
  • pull-3683 - Add two new bench mark programs

Testing​

· 3 min read
Marcin Szamotulski

High-level overview of sprint 43​

In this sprint, we received contributions from CF & Galois. Karl Knutsson (CF) has addressed various issues regarding peer churning in P2P, timeouts and our WireShark dissector. While the Galois developers focused on addressing issues from their review last year. See below for more details.

We continued working on bootstrap peers ouroboros-network-#4661.

We refactored our test suites: they are split into io-tests which require to be run natively on all platforms (these tests mostly contain tests that require IO system calls) and sim-tests which are platform independent. We run io-tests on all supported platforms (e.g. x86_64-linux, x86-64-darwin, aarch64-darwin and x86_64-w64-mingw32 (Windows)) natively. The sim-tests are not executed on Windows due to memory limitations on GitHub Actions runners. ouroboros-network-#4653

We also started rebasing typed-protocols refactoring branches.

Marcin was appointed as the cardano-node release engineer for the 8.4.0-pre version. So far he integrated cardano-ledger-conway-1.8 and ouroboros-network-0.9.1.0 to ouroboros-consensus, cardano-cli and cardano-api. Once we will have an integration branch for cardano-node, cardano-ledger-conway-1.8 and ouroboros-consensus packages can be released to CHaP and PRs can be merged once they go through review & CI.

We also fixed some smaller issues regarding peer sharing (both were discovered by Karl from CF). More details are included below.

Progress on P2P addoption​

SPO relays​

There are currently ~2000 relays running P2P enabled nodes that belong to 557 pools with a combined stake of 7900Mil Ada. On 16th of August it was ~1700 relays, 531 pools with a combined stake of 7700Mil Ada.

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 CF and their mainnet monitoring infrastructure.

IOG relays​

As of this week, 90% of IOG relays are running a P2P setup. In the next sprint all IOG relays will be running P2P.

Detailed description​

In this sprint, we got a few contributions from CF:

  • Karl made peer churning mechanism less aggressive ouroboros-network-#4656; and
  • he added timeouts for idle states in ChainSync & KeepAlive miniprotocols. These timeouts help a node remove idle connections from the responder (server) side ouroboros-network-#4648.
  • he improved the WireShark dissector by adding support for the peer-sharing mini-protocol ouroboros-network-#4656.

Galois has been making progress in addressing some of the issues they raised in their review (last year):

Peer Sharing​

  • Light peer sharing is only enabled when peer sharing is turned on ouroboros-network-#4652;
  • Handshake incorrectly reports peer sharing value. It's supposed to relay the remote value, but instead, it returns the local value. ouroboros-network-#4642 (in review).

Async Demotion Test Fix​

  • We fixed an async demotion test failure which turned out to be a weakness of the test itself rather than a bug in the connection manager. ouroboros-network-#4655

· 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:

  • Work on cardano-parts repo continues and was utilized by the sanchonet-demo repository for demonstration purposes
  • Work on a new capkgs repository started -- "Content Addressed Packages"
    • This repository provides common Cardano release and pre-release binaries in a pure content addressed nix package type via flake output
    • These packages don't have the associated IFD, long eval times and large source dependencies that the originating source repositories often do
    • Consumers of such packages, such as devShells or nixos machines, can benefit from the improved performance this offers

Lower level summary​

Capkgs​

  • Content addressed packages -- new repo: capkgs

Cardano-ops​

  • Cardano p2p relay updates, dbSync snapshots server update, monitoring adjustments: cardano-ops-compare

Cardano-parts​

Cardano-perf​

Cardano-world​

Sanchonet-demo​

· 2 min read
Carlos LopezDeLara

2023-08-16 - 2023-08-29

High level summary​

CLI is making progress towards phases 3 and 4 of SanchoNet.

  • Ability to create info, no-confidence and new committee governance actions.

  • Voting as DREP is possible now on the CLI

  • API is now using Ledger's PParams and VotingProcedures

  • Expose following queries from consensus:

    - GetGovState
    - GetDRepState
    - GetDRepStakeDistr
    - GetCommitteeState
    - GetConstitution

cardano-cli​

cardano-api​

cardano-node​

cardano-testnet​

docs​

CI & project maintenance​

· One min read
Jean-Philippe Raynaud

High level overview​

The Mithril team created an explorer page with the registered signers to give recognition to the SPOs already running on mainnet. They also worked on refactoring and standardizing errors in the Mithril nodes, and they enhanced the clarity and reduced verbosity of the logs for the signer and aggregator nodes. Additionally, they started working on the implementation of zstandard compression of the snapshot archive, and streaming its download and decompression in the client.

Finally, they implemented machine readable progress information in the client, and streamlined the process of verifying the registration status of a signer.

Low level overview​

  • Completed the issue Create explorer page with registered signers #1097
  • Completed the issue Simplify logs on the Signer/Aggregator #1106
  • Completed the issue Refactor (de)serialization of crypto entities #668
  • Completed the issue Mithril client last snapshot download #1078
  • Completed the issue Use the '/signers/registered' route to verify if a signer is registered #1152
  • Worked on the issue Provide progress information with '--json' option in Client #1095
  • Worked on the issue Use 'zstandard' compression for snapshot archives #876
  • Worked on the issue Make client download and extract the archive simultaneously #1115