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· One min read
Damian Nadales

High level summary​

  • Released Consensus for Node 8.11 (#1101)
  • Improved the Praos chain order:
    • Restricted VRF tiebreaker based on slot distance (#1047)
    • Small tweak to the issue number tiebreaker (#1086)
  • Wrote overview on the statistics on the leader schedule (#1096)
  • Integrated robustness refinement for concluding that a node is caught up in the context of bootstrap peers (#1031)
  • The P&T team managed to complete the UTXO-HD benchmarks using the LMDB backend and the results are promising.
  • We're working on setting up the Consensus Technical Working Group within Intersect, so if you'd like to participate please reach out to Damian Nadales.

· 2 min read
Jean-Philippe Raynaud

High level overview​

This week, the Mithril team released the new distribution 2418.1, which includes broader CPU support for pre-built binaries and a new memory allocator for the signer and aggregator nodes aimed at preventing memory fragmentation. They also continued implementing the certification of Cardano transactions in Mithril networks and worked on scaling the signature and proof generation for mainnet. Specifically, they completed the implementation of compressing the transaction Merkle tree using sub-Merkle trees based on transaction block ranges and initiated testing and assessing performance on mainnet in a test Mithril network. Additionally, they started working on minimizing the extra disk space requirements for the signer on the SPO infrastructure.

Finally, the team implemented some optimizations for the aggregator, fixed some bugs on the client, and introduced new documentation for compiling the Mithril relay from source.

Low level overview​

  • Released the new distribution 2418.1
  • Completed the issue Use Block Range Merkle roots to sign Cardano transactions #1634
  • Completed the issue Use Block Range Merkle roots to prove Cardano transactions #1635
  • Completed the issue Deploy Cardano transactions to testing-mainnet #1647
  • Completed the issue Consistent sorting of transactions from GetCardanoTransactionProvider in signer and aggregator #1657
  • Completed the issue Use SQLite transactions when inserting Cardano Transactions and Block Range Roots #1656
  • Completed the issue Implement Ord on SignedEntityTypeDiscriminants #1648
  • Completed the issue Merkle roots don't have fixed size in the block_range_root table #1668
  • Completed the issue Refactor Cardano transactions database layer in persistence for signer and aggregator #1677
  • Completed the issue Some timing tests fail on ARM #1466
  • Completed the issue Add Mithril networks configurations in networks.json #1638
  • Completed the issue Add section for manual setup of squid in SPO guide #1610
  • Worked on the issue Aggregator stress test crashes during signer registration #1676
  • Worked on the issue Prune Cardano transactions stored on signer #1645
  • Worked on the issue ChainObserver supports retrieving the Chain Point of the tip of the chain #1589
  • Worked on the issue Retrieves Cardano blocks with chainsync in pallas PoC #1590
  • Worked on the issue Mithril Signer Local Error Policy : Error 182 - MuxError #1632

· 2 min read
Carlos LopezDeLara

2024-04-27 - 2024-05-13

High level summary​

Enhancements to the CLI encompass several noteworthy additions. These include the introduction of a new hardfork initiation command, rendering --prev-governance-action-tx-id optional for create-no-confidence actions, addressing scenarios where the committee is defined in the Conway Genesis file, and refining help texts. Additionally, there have been updates to the description fields in governance action files.

Adjust maximum understood protocol version from 9 to 10 when the experimental hardforks flag is enabled. This allows us to bypass Conway's bootstrap phase in testing

Continued work in testing implementation of CIP1694 with cardano-testnet.

cardano-cli​

cardano-api​

cardano-node​

cardano-testnet​

docs​

CI & project maintenance​

· One min read
Daniel Firth

High-level summary​

This week, the Hydra team upgraded the hydra-node networking layer to use a versioned handshake protocol, as well as extensive documentation restructuring and bug fixes to the hydra-tui.

What did the team achieve this week​

  • Use versioned hadshake when connecting hydra-nodes.
  • Restructure documentation.
  • Fixed the transaction envelope type parsing in order to be compatible with cardano-cli and update our docs.
  • Show the contestations in the hydra-tui
  • Experiment with removing persistence in the reliability layer and adding custom command to Reset the head state to the last confirmed snapshot

What are the goals of next week​

  • Provide aarch64-linux docker images for hydra-node.
  • Release hydra-node 0.17.0
  • Finish new model spec changes related to decommit testing

· 2 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:

  • A preview of the new cardano tracing system is available by using the profile-cardano-node-new-tracing new nixosModule from cardano-parts and is complemented with new tracing system dashboards and alerts

  • Custom cardano metrics can be pushed to a statsd server and then scraped to a monitoring solution using the profile-cardano-custom-metrics new nixosModule from cardano-parts

  • A new cardano-parts job for spinning up clusters using a recent cardano-cli command, create-testnet-data, was implemented: .#job-gen-custom-node-config-data

Lower level summary​

Cardano-faucet​

Cardano-parts​

  • Sets cardano-faucet-ng to 8.10, and mithril[-ng] to 2418-1. A preview nixosModule for cardano-node's new tracing system has been added as well as a cardano custom-metrics module. Dashboards have been added for the new tracing system. Cardano-node alerts have been refactored into several rulesets which include some new alerts as well as new tracing system alerts. A job for spinning a cardano cluster up using a new underlying cardano-cli mechanism, create-testnet-data, was added. More detail is available in the PR description: cardano-parts-pull-40

Cardano-mainnet​

  • Sets mithril to 2418-1. Cardano-node alerts have been refactored into several rulesets which include some new alerts as well as new tracing system alerts. See the PR description for more details: cardano-mainnet-pull-14

Cardano-perf​

Cardano-playground​

  • Sets cardano-faucet-ng to 8.10 which fixes a sanchonet faucet instability, and mithril[-ng] to 2418-1. Adds a new cardano-node tracing system preview to some machines with corresponding dashboards. Cardano-node alerts have been refactored into several rulesets which include some new alerts as well as new tracing system alerts. A job for spinning a cardano cluster up using a new underlying cardano-cli mechanism, create-testnet-data, was added and integrated with the Justfile start-demo recipe. Includes other misc tuning and improvements. See the PR description for more details: cardano-playground-pull-23