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· One min read
Alexey Kuleshevich

High level summary​

Few minor touchups were implemented for the upcoming cardano-node-10.3 release. Other than that focus was mostly on removing redundant complexity and improvements to our test suites.

Low level summary​

Features​

  • pull-4924 - Make instantStake deserialization backwards compatible for Conway era
  • pull-4933 - Add required CBOR instances for NonZero
  • pull-4926 - Remove bytestring from Block type
  • pull-4938 - Remove redundant bytes memoization from WitVKey and BootstrapWitness

Testing​

  • pull-4944 - Implement more Alonzo UTxOW Imp tests
  • pull-4953 - Implement the remaining Alonzo UTxOW test and remove the old module

Infrastructure and releasing​

  • pull-4942 - Add bounds on cardano-crypto-wrapper in packages that also use crypton
  • pull-4946 - Post-release bump versions in changelogs and cabal-files
  • pull-4951 - Add a shellcheck workflow to GitHub CI

· 2 min read
Jean-Philippe Raynaud

High level overview​

This week, the Mithril team created the pre-release for the 2513.0-pre distribution, which provides support for Cardano node v.10.2.1 and includes various bug fixes and improvements.

They implemented the aggregator's prototype 'slave' mode to support signer registration across multiple aggregators and started adapting the infrastructure to support it. They also focused on signing ancillary files in the Cardano database snapshots with an IOG key and worked on recording the origin of requests made to the aggregator API.

Finally, the team enhanced the handling of some aggregator functional errors to improve the accuracy of the signer metrics and kept refactoring the cryptographic library to improve clarity and maintainability.

Low level overview​

  • Pre-released the new distribution 2513.0-pre
  • Completed the issue E2E tests adaptation for multiple aggregators #2361
  • Completed the issue Use a macro to implement the Source trait #2365
  • Completed the issue Upgrade to Cardano 10.2 #2333
  • Completed the issue Some error messages should be considered as warning in signer registration to aggregator #2363
  • Worked on the issue Sign ancillary files with IOG key #2362
  • Worked on the issue Release 2513 distribution #2332
  • Worked on the issue Record origin of client requests in metrics #2382
  • Worked on the issue Re-organize STM library structure #2369

· One min read
Noon van der Silk

High-level summary​

The team is very excited to have relased the work on reducing the memory footprint of the Hydra node by merging #1618. This has been tested and appears to make a huge impact to long-running Hydra nodes with many transactions. We invite the community to test it more! We also made a couple of hotfixes and documentation improvements.

What did the team achieve?​

  • Merged work on reduced memory footprint for running a Hydra Node #1618
  • Progress on "side-load" of a snapshot #1858
  • Updated documentation for persistence cleaning #1899
  • Fixed a bug where the TUI wasn't getting enough history #1901
  • Allowed for etcd arguments to be passed on #1891; useful for controlling etcd more explicitly.
  • Added /snapshot/last-seen endpoint to query the latest snapshot #1886

What's next?​

  • Finish side-loading snapshots #1858
  • Tighten security options of the networking layer #1867
  • Publishing scripts with blockfrost #1668

· 2 min read
Jean-Philippe Raynaud

High level overview​

This week, the Mithril team continued working on the aggregator's prototype 'slave' mode to support signer registration across multiple aggregators. This feature is being stabilized and tested. They also focused on implementing incremental certification of the Cardano database, emphasizing feature stabilization, production readiness, testing, and optimization. Additionally, the team started refactoring the cryptographic library to improve clarity and maintainability and kept working on signing ancillary files in the Cardano database snapshots with an IOG key.

Finally, the team enhanced the database tooling for migration and maintenance and fixed some flakiness in the CI.

Low level overview​

  • Completed the issue Compress the digests file uploaded on GCP for Incremental Cardano DB #2356
  • Completed the issue Database vacuum is blocking aggregator API at epoch transition #2364
  • Completed the issue Database migration checks minimum node version if next migration is squashed #2357
  • Completed the issue Some unit tests in the CI are flaky #2360
  • Worked on the issue E2e tests adaptation for multiple aggregators #2361
  • Worked on the issue Sign ancillary files with IOG key #2362
  • Worked on the issue Use a macro to implement the Source trait #2365
  • Worked on the issue Re-organize STM library structure #2369
  • Worked on the issue Upgrade to Cardano 10.2 #2333