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75 posts tagged with "consensus"

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· One min read
Damian Nadales

High level summary​

Our quarterly objectives are now drafted and can be accessed here.

The team continued working on documentation improvements, enhancing the security of the Consensus layer, and being involved in the early stages of the Peras workstream.

We are updating the UTXO-HD branch to make use of the forward-deserializability of transaction outputs (TxOuts) (see #1360, #1361, and #1362). We performed a local chain sync with a the latest version of an UTXO-HD enabled node, using the in-memory backend.

· One min read
Damian Nadales

High level summary​

  • The augmentation of headers with time, which helps simplify the way consensus handles time, is now ready for review (#1288).
  • Fixed a bug with the mempool being overly strict in rejecting certain large transactions (1352).
  • Incorporated the full rework of the block-fetch logic for bulk sync mode (#1179).
  • Released Consensus packages needed for Cardano Node 10.2 (ouroboros-consensus-protocol-0.10.0.0, release-ouroboros-consensus-diffusion-0.19.0.0, release-ouroboros-consensus-cardano-0.21.0.0, release-ouroboros-consensus-0.22.0.0).

· One min read
Damian Nadales

High level summary​

  • Well-Typed held a new lsm-trees milestone presentation, where they showed the progress in two important features:
    • Snapshots (for persisting ledger snapshots)
    • Table union (for storing more parts of the ledger state on disk)
  • Finished the UTXO-HD code review work. Since this feature could have a performance impact, we need to run a new set of system-level benchmarks before we can merge it. The next steps are detailed in this comment.
  • Submitted a request to the Technical Steering Committee on how the node should handle low apparent participation.
  • Added support for computing and checking CRCs of ledger state snapshots, which increases robustness when loading this data from disk (#1319).

· One min read
Damian Nadales

High level summary​

  • Started preparations of a TSC proposal regarding Chain Growth violations.
  • Wrote a document about the Cardano-specific instantiation of the Praos protocol theorem.
  • Georgy Lukyanov joined the Consensus team and is going through the onboarding process.

· One min read
Damian Nadales

High level summary​

  • Reviewed the UTxO HD PR, and started addressing Review comments.
  • Engaged with Researchers about to discuss the HFC simplification proposal.
  • Reverted the Babbage->Conway era transition workaround, clarifying the semantics around stake from pointer addresses (see #1297).
  • Well-Typed worked on two features for lsm-tree:
    • snapshots (for persisting ledger snapshots)
    • table union (for storing more parts of the ledger state on disk)
  • Addressed minor tech debt issues (#1269).