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Network Team Update

· 2 min read
Marcin Szamotulski

Overview of sprint 98 and 99​

Cardano-Node 10.6 Release​

We swiftly identified and resolved an issue in the Ouroboros.Network.Server.Simple.with function. This bug broke cardano-tracer component, [on#5224], [on#5223]. The function hasn't been used in cardano-node before. ouroboros-network-framework-0.19.2.0 was released ([chap#1157]).

We'd like to point out that cardano-node-10.6 will come supporting only P2P network stack.

For this coming release, we addressed some corner cases in topology parsing, cn#6304.

DMQ-Node​

We continued working on dmq-node. Recently, an end-to-end test was successfully run using the mithril Rust client, submitting signatures to a dmq-node, which propagated them to another instance of dmq-node. on#5203

We found out and fixed a bug in typed-protocol's annotated driver, which is used by dmq-node: on#5207.

A static build of dmq-node is now also available for the x86_64-linux-musl target:

nix build .#dmq-node-static

The trace & monitoring team is helping us to integrate dmq-node with the cardano-tracer library. The aim is to give SPO the familiar user experience when monitoring dmq-node.

Peer Selection Improvements​

A number of discrepancies were found and fixed in the peer selection logic. The peer-selection and net-sim tests were improved: on#5209, on#5232

WASM support in Ouroboros-Network​

The node team contributed a partial WASM support to ouroboros-network, on#5229.

Technical Debt Reduction​

Ouroboros-Network​

We reorganised the ouroboros-network package structure to improve maintainability and simplify our release process, on#5200.

  • cardano-diffusion: everything related to diffusion for Cardano purposes, in particular cardano-node, but not only.
  • ouroboros-network-api, ouroboros-network-framework, ouroboros-network-protocols packages are now sublibraries of ouroboros-network. Some Cardano-specific APIs are only present in cardano-diffusion.
  • cardano-client package is now just a sublibrary: cardano-diffusion:subscription.
  • cardano-ping will become a sublibrary: cardano-diffusion:ping once on#5205 is merged.

Consensus​

We addressed some outstanding TODOs in the ouroboros-consensus-diffusion package, see oc#1660.