We have been focused on:
1.35.4-rc1 node tag
The DBSync team is preparing a release which introduces schema simplifications, removes indexes, unique and foreign keys. It also provides a way to fix older values and migrates without the need to resync from genesis.
Indexes, Unique and Foreign keys are removed in order to speedup syncing #1295 The same pr also introduces a different way to rollback, which doesn't rely on foreign keys and indexes.
The DBSync team ran a big number of benchmarks and investigated ways to speedup syncing. A conservative number of these will be included in the next release and the rest can be found in performance view.
The next release will be 13.1.0, it will enable a migration without the need to resync. It will also introduce a procedure that fixes bytes values of Datum and RedeemerData in existing databases #1294
The release has been mostly cherry-picked from master #1294 and its scope can be seen release view
This week, the hydra team completed several user experience improvements to the
hydra-tui and hydra-node, and delivered a first version of persisted head
states by publishing release version
0.8.0.
Besides this, they met with researchers on topic of the HeadV1 specification and
kicked-off work on the RFP for an external audit of the Hydra Head protocol and implementation.
hydra-tui0.8.0, which delivers a first version of persisted head states
The team has focused on debuging & fixing bugs for the P2P single relay release, which included
peer-state-actions which
fortunately hasn't been released;We also focused on developing peer sharing. We also held a session with the scientists on eclipse evasion.
During the past two weeks the team focused on p2p single relay release and peer sharing. We found and fixed an important bug recently introduced in one of the components of p2p networking stack (fortunately never released). Together with a fix, we designed a unit test diffusion simulation as well as quickcheck property test (both could reproduce it). We also changed the code in a way that if such a bug is reintroduced in the future, it will be obvious to diagnose. For more see:
Initial benchmarking run of the P2P code was executed. The results where unlike what we see on the mainnet. We found a possible misconfiguration of the cluster (caused by 0 TTL on domain names), which could be the direct cause of it. We wrote a PR which rules out such misconfiguration. We are awaiting on the next benchmarking results. See more at:
We also started working on P2P single relay release. The PR
ouroboros-network#4120
includes 108 patches cherry-picked from the master branch. We started
working toward integration these changes against the release branch of
cardano-node. Early next week we ought to be able to have an early version
of cardano-node with non experimental P2P support!
For more detailed release plan please see P2P - Single Relay issue.
We identified and fixed missing error reporting in consensus initialisation phase. See more at ouroboros-network#4015
We also made changes in cardano-node in order to give better experience for
node operators. This includes updating severities of some of the traces as
well as implementing new format of the p2p topology file. For more see:
We continued working on implementation of peer sharing. We have an early
implementation which will be reviewed and analysed in next weeks. We started
working on cardano-node integration. We need
PR #4392 to be merged
before such integration will be able to land in cardano-node, although this
is not blocking us currently. See more at:
We held a session which included Alexander Russel, Sandro Coretti-Drayton and
Nick Frisby from the consensus team. We discussed high lever design of the
eclipse evasion scheme, which is important for the design and implementation of
ouroboros-genesis. We got a positive feedback from the researchers.
In this period we made little progress towards releasing IO-Sim on Hackage.
A single PR which added
a few missing instances of the STM monad.
We made sure the CI runs for PRs which comes from forks (which is important to accept contributions from 3rd parties).
We held initial discussions with Arnaud Bailly about possible path to integrate
mithril to cardano-node and take advantage of the ouroboros-network
diffusion layer.
On the performance side, the team ran benchmarks for the the P2P feature and the 1.35.4 release. We finished a prototype for performance data publishing. We almost finished the local deployment backend for the workbench using the new SRE deployment infra. We worked on fixing and improving our data analysis pipeline.
On the tracing side, the team worked on isolating a critical issue causing message loss in the remote tracing backend. The issue was resolved and we now have proper end-to-end coverage for the scenario.