Network Team Update

Overview of sprint 72

cardano-node release: 10.0

We have been working on the cardano-node-10.0 release.

• Removed versions older than NodeToNodeV_12
• Introduced NodeToNodeV_14

Tx-Submission

We have been running an experimental build of cardano-node with new tx-sumbission logic ouroboros-network#3311. Some performance bottlenecks have been found by Karl Knutsson (CF), but not deadlocks or race conditions.

• Send TraceTxSubmissionProcessed for the new TX submission
• Let the thread which fetched a TX add it to the mempool

Preparations for removal of Non-P2P network code

In order to prepare for removal of the network stack we addressed two issues:

• expose Mux API for node-to-clients, so that they have more control over how mini-protocols are running (e.g. implement ones own mini-protocol restart policy) ouroboros-network#3231, ouroboros-network#4979
• reimplement cardano-client without using non-p2p network code (e.g. the subscribtion worker), ouroboros-network#4979

On the way we also addressed a few technical debt items:

• removed Network.Mux.Compat interface: ouroboros-network#4974
• Clean-up Network.Mux.Channel
• Add bearer name

Documentation

We updated the documentation of the peer-sharing mini-protocol: ouroboros-network#4981, ouroboros-network#4983.

We updated the SECURITY.md file according to the IntersectMBO's Open-Source Committee guidance, ouroboros-network#4986.

io-sim

• Distinct TVarIds for various TVar roles
• Reviewed PRs contributed by Javier Sagredo (IOG, Consensus Team):
  • Implement MonadLabelledMVar
  • Improve show of ScheduleMod
  • Attach label to TVars mentioned in Effects
  • Make takeMVar exception safe