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Changelog

All notable changes to this module will be documented in this file.

The format is based on Keep a Changelog, and this project adheres to Semantic Versioning.

[Unreleased]

[0.0.0.54] - 2023-06-13

  • Fix tests

[0.0.0.53] - 2023-06-08

  • Add consensus README

[0.0.0.52] - 2023-05-24

  • Updates consensus tests to use GetBlock mock instead of Get mock

[0.0.0.51] - 2023-05-16

  • Updates consensus test to use BlockStore mock instead of KVStore mock

[0.0.0.50] - 2023-05-03

  • Rename TxResult to IndexedTransaction

[0.0.0.49] - 2023-04-27

  • Updated comments following P2P refactor

[0.0.0.48] - 2023-04-17

  • Debug logging improvements

[0.0.0.47] - 2023-04-17

  • Log warnings in handleStateSyncMessage()

[0.0.0.46] - 2023-04-13

  • Utilise the TxResult protobuf from shared/core/types

[0.0.0.45] - 2023-04-12

  • Added new helper functions for testing hotstuff consensus stages: waitForNewRound(), waitForPrepareProposal(), waitForPrepareVoteswaitForPreCommit(), waitForCommit(), and waitForDecide() , and a wrapper function waitForNextBlock().
  • Removed state machine mock in testing, and introduced actual state machine that starts with StartAllTestPocketNodes() function and added generatePlaceholderBlock() function
  • Added, new helper functions for testing state sync stages: waitForNodeToRequestMissingBlock(), waitForNodeToReceiveMissingBlock(), waitForNodeToCatchUp() and a wrapper function waitForNodeToSync() currently as placeholders.

[0.0.0.44] - 2023-04-12

  • Updated handleStateSyncMessage() to log warnings if server mode is not enabled

[0.0.0.43] - 2023-04-07

  • Renamed CreateAndApplyProposalBlock to CreateProposalBlock
  • Updated to reflect the new ApplyBlock signature from utilityUnitOfWork
  • Updated to use utilityUnitOfWork.GetStateHash()
  • Removed duplicate import

[0.0.0.42] - 2023-04-03

  • Add fsm_handler.go to handle FSM transition events in consensus module
  • Update State Machine mock in utils_test.go
  • Update state_sync module with additional function definitions

[0.0.0.41] - 2023-03-30

  • Improve & simplify utilityUnitOfWork management
  • Logging - improve the wording and context of various logging statements
  • Logging - remove a lot of unused logging function helpers
  • Genesis - Fix ordering of operations when resetting to genesis
  • Added msgToLoggingFields(hotstuffMsg) helper
  • Added missing persistenceContext.Release() calls
  • Avoid redundant handling of hotstuff messages by replicas
  • Consolidated prev & last terminology
  • Consolidated stateHash & prevHash terminology
  • Removed unused logPrefix variables
  • Moved implementation of modules.ConsensusDebugModule into its own file
  • Moved implementation of modules.ConsensusPacemaker into its own file
  • Moved implementation of modules.ConsensusStateSync into its own file

[0.0.0.40] - 2023-03-29

  • Bugfix for (unable to send txs in localnet) #631

[0.0.0.39] - 2023-03-26

  • Refactored utilityContext into utilityUnitOfWork
  • Added utilityUnitOfWorkFactory to create utilityUnitOfWork instances depending on the fact that the current node is Leader or Replica
  • Renamed prepareAndApplyBlock to prepareBlock
  • Centralized applyBlock logic
  • Updated tests

[0.0.0.38] - 2023-03-25

  • Add quorum certificate to the block before committing to persistence
  • Add error ErrNoQcInReceivedBlock and message DisregardBlock

[0.0.0.37] - 2023-03-21

  • Add helper function logHelper() for logging

[0.0.0.36] - 2023-02-28

  • Creating a persistence read context when needing to accessing stateless (i.e. block hash) data
  • Renamed package names and parameters to reflect changes in the rest of the codebase
  • Removed the unused validator.proto

[0.0.0.35] - 2023-02-28

  • Fixed bug in sendGetMetadataStateSyncMessage

[0.0.0.34] - 2023-02-24

  • Fixed TestPacemakerCatchupSameStepDifferentRounds test

[0.0.0.33] - 2023-02-24

  • Update logger value references with pointers

[0.0.0.32] - 2023-02-22

  • Move functions exposed by ConsensusDebugModule to debugging.go

[0.0.0.31] - 2023-02-21

  • Rename ServiceNode Actor Type Name to Servicer

[0.0.0.30] - 2023-02-17

  • Updated log messages in the state sync submodule with consistent style and add height information
  • Added state sync message types to the types package

[0.0.0.29] - 2023-02-17

  • Modules embed base_modules.IntegratableModule and base_modules.InterruptableModule for DRYness
  • Updated modules Create to accept generic options
  • resetToGenesis clears the utility mempool as well
  • Publishing ConsensusNewHeightEvent on new height

[0.0.0.28] - 2023-02-14

  • Add a few nolint comments to fix the code on main

[0.0.0.27] - 2023-02-09

  • Add state_sync submodule, with state_sync struct
  • Implement state sync server to advertise blocks and metadata
  • Create new state_sync_handler.go source file that handles StateSyncMessages sent to the Consensus module
  • Add two new tests in state_sync_test.go:TestStateSyncServerGetMetaDataReq and TestStateSyncServerGetBlock
  • Update TestHotstuff4Nodes1BlockHappyPath test to also retrieve the committed block

[0.0.0.26] - 2023-02-06

  • Address legacy linter errors from golangci-lint

[0.0.0.25] - 2023-02-04

  • Changed log lines to utilize new logger module.

[0.0.0.24] - 2023-02-03

  • Introduced hotstuffFIFOMempool that extends the logic provided by the genericized FIFO mempool in shared.
  • Added tests for hotstuffFIFOMempool to ensure that it behaves as expected.

[0.0.0.23] - 2023-01-30

  • Fix TestHotstuff4Nodes1BlockHappyPath misplacement of actual and expected values in require.Equal

[0.0.0.22] - 2023-01-25

  • Add a note on consensus test related workaround related to #462

[0.0.0.21] - 2023-01-24

  • Decouple consensus module and pacemaker module
  • Add pacemaker submodule
  • Update pacemaker struct to remove consensus module field, and related functions
  • Create new pacemaker_consensus.go source file that consists ConsensusPacemaker function implementations

[0.0.0.20] - 2023-01-19

  • Rewrite interface{} to any

[0.0.0.19] - 2023-01-18

  • Remove Block proto definition to consolidate under shared/core/types

[0.0.0.18] - 2023-01-11

Consensus - Core

  • Force consensus to use a "star-like" broadcast instead of "RainTree" broadcast
  • Improve logging throughout through the use of emojis and rewording certain statements
  • Slightly improve the block verification flow (renaming, minor fixes, etc…) to stabilize LocalNet

Consensus - Tests

  • Rename the consensus_tests package to e2e_tests
  • Internalize configuration related to fail_on_extra_msgs from the Makefile to the consensus module
  • Forced all tests to fail if we receive extra unexpected messages and modify tests appropriately
  • After #198, we made tests deterministic but there was a hidden bug that modified how the test utility functions because the clock would not move while we were waiting for messages. This prevented logs from streaming, tests from failing, and other issues. Tend to all related changes.

Consensus - Pacemaker

  • Rename ValidateMessage to ShouldHandleMessage and return a boolean
  • Pass a reason to InterruptRound
  • Improve readability of some parts of the code

[0.0.0.17] - 2023-01-10

  • Updated module constructor to accept a bus and not a runtimeMgr anymore
  • Registering module with the bus via RegisterModule method
  • Updated tests and mocks accordingly

[0.0.0.16] - 2023-01-09

  • Added protobuf message definitions for requests related to sharing state sync metadata and blocks
  • Defined the interface for StateSyncServerModule, StateSyncModule (moving the old interface to StateSyncModuleLEGACY as a reference only)
  • Overhaul (updates, improvements, clarifications & additions) of the State Sync README
  • Removed ValidatorMap() ValidatorMap

[0.0.0.15] - 2023-01-03

  • ValidatorMap uses Actor references now

[0.0.0.14] - 2022-12-21

  • Updated do use the new centralized config and genesis
  • Actor is now a shared struct instead of an interface
  • Removed converters between the interfaces and the consensus structs for Validators

[0.0.0.13] - 2022-12-14

  • Consolidated number of validators in tests in a single constant: numValidators
  • Fixed typo in make test_consensus_concurrent_tests so that we can run the correct test matrix
  • Using GetBus() instead of bus wherever possible
  • LeaderElectionModule's electNextLeaderDeterministicRoundRobin now uses Persistence to access the list of validators instead of the static ValidatorMap.

[0.0.0.12] - 2022-12-12

  • Unexport ConsensusModule fields
  • Create ConsensusDebugModule interface with setter functions to be used only for debugging puroposes
  • Update test in TestPacemakerCatchupSameStepDifferentRounds in pacemaker_test.go to use setter functions

[0.0.0.11] - 2022-12-06

  • Removed unused consensus.UtilityMessage

[0.0.0.10] - 2022-11-30

  • Propagate highPrepareQC if available to the block being created
  • Remove blockProtoBytes from propagation in SetProposalBlock
  • Guarantee that write context is released when refreshing the utility context
  • Use GetBlockHash(height) instead of GetPrevAppHash to be more explicit
  • Use the real quorumCert when preparing a new block

[0.0.0.9] - 2022-11-30

  • Added state sync interfaces and diagrams

[0.0.0.8] - 2022-11-15

  • Propagate the quorumCertificate on Block commit to the Utility module
  • Slightly improved error handling of the utilityContext lifecycle management

[0.0.0.7] - 2022-11-01

  • Removed apphash and txResults from consensusModule structure
  • Modified lifecycle to set the proposal block within a PersistenceContext
  • Allow block and parts to be committed with the persistence context

[0.0.0.6] - 2022-10-12

  • Stores transactions alongside blocks during commit
  • Added current block []TxResult to the module

#235 Config and genesis handling

  • Updated to use RuntimeMgr
  • Made ConsensusModule struct unexported
  • Updated tests and mocks
  • Removed some cross-module dependencies

[0.0.0.5] - 2022-10-06

  • Don't ignore the exit code of m.Run() in the unit tests

[0.0.0.4] - 2022-09-28

  • consensusModule stores block directly to prevent shared structure in the utilityModule

[0.0.0.3] - 2022-09-26

Consensus logic

  • Pass in a list of messages to findHighQC instead of a hotstuff step
  • Made CreateProposeMessage and CreateVotemessage accept explicit values, identifying some bugs along the way
  • Made sure to call applyBlock when using highQC from previous round
  • Moved business logic for prepareAndApplyBlock into hotstuff_leader.go
  • Removed MaxBlockBytes and storing the consensus genesis type locally as is

Consensus cleanup

  • Using appropriate getters for protocol types in the hotstuff lifecycle
  • Replaced proto.Marshal with codec.GetCodec().Marshal
  • Reorganized and cleaned up the code in consensus/block.go
  • Consolidated & removed a few TODOs throughout the consensus module
  • Added TECHDEBT and TODOs that will be require for a real block lifecycle
  • Fixed typo in hotstuff_types.proto
  • Moved the hotstuff handler interface to consensus/hotstuff_handler.go

Consensus testing

  • Improved mock module initialization in consensus/e2e_tests/utils_test.go

General

  • Added a diagram for AppHash related ContextInitialization
  • Added Makefile keywords for TODO

[0.0.0.2] - 2022-08-25

Encapsulate structures previously in shared #163

  • Ensured proto structures implement shared interfaces
  • ConsensusConfig uses shared interfaces in order to accept MockConsensusConfig in test_artifacts
  • ConsensusGenesisState uses shared interfaces in order to accept MockConsensusGenesisState in test_artifacts
  • Implemented shared validator interface for validator_map functionality

[0.0.0.1] - 2021-03-31

Added new libraries: HotPocket 1st iteration

  • Initial implementation of Basic Hotstuff
  • Initial implementation Hotstuff Pacemaker
  • Deterministic round robin leader election
  • Skeletons, passthroughs and temporary variables for utility integration
  • Initial implementation of the testing framework
  • Tests with make test_pacemaker and make test_hostuff

[0.0.0.0] - 2021-03-31

Added new libraries: VRF & Cryptographic Sortition Libraries

  • Tests with make test_vrf and make test_sortition
  • Benchmarking via make benchmark_sortition
  • VRF Wrapper library in consensus/leader_election/vrf/ of github.com/ProtonMail/go-ecvrf/ecvrf
  • Implementation of Algorand's Leader Election sortition algorithm in consensus/leader_election/sortition/