These changes augment the Validations class with a LedgerTrie to better
track the history of support for validated ledgers. This improves the
selection of the preferred working ledger for consensus. The Validations
class now tracks both full and partial validations. Partial validations
are only used to determine the working ledger; full validations are
required for any quorum related function. Validators are also now
explicitly restricted to sending validations with increasing ledger
sequence number.
Introduces a generic Validations class for storing and querying current and
recent validations. Aditionally migrates the validation related timing
constants from LedgerTiming to the new Validations code.
Introduces RCLValidations as the version of Validations adapted for use in the
RCL. This adds support for flushing/writing validations to the sqlite log and
also manages concurrent access to the Validations data.
RCLValidations::flush() no longer uses the JobQueue for its database
write at shutdown. It performs the write directly without
changing threads.
Add new functionality to enforce one or more sanity checks (invariants)
on transactions. Add tests for each new invariant check. Allow
for easily adding additional invariant checks in the future.
Also Resolves
-------------
- RIPD-1426
- RIPD-1427
- RIPD-1428
- RIPD-1429
- RIPD-1430
- RIPD-1431
- RIPD-1432
Release Notes
-------------
Creates a new ammendment named "EnforceInvariants" which must be
enabled in order for these new checks to run on each transaction.
This is a substantial refactor of the consensus code and also introduces
a basic consensus simulation and testing framework. The new generic/templated
version is in src/ripple/consensus and documents the current type requirements.
The version adapted for the RCL is in src/ripple/app/consensus. The testing
framework is in src/test/csf.
Minor behavioral changes/fixes include:
* Adjust close time offset even when not validating.
* Remove spurious proposing_ = false call at end of handleLCL.
* Remove unused functionality provided by checkLastValidation.
* Separate open and converge time
* Don't send a bow out if we're not proposing
* Prevent consensus stopping if NetworkOPs switches to disconnect mode while
consensus accepts a ledger
* Prevent a corner case in which Consensus::gotTxSet or Consensus::peerProposal
has the potential to update internal state while an dispatched accept job is
running.
* Distinguish external and internal calls to startNewRound. Only external
calls can reset the proposing_ state of consensus
* Force jtx to request/receive the 2.0 API
* Force the JSON and WebSocket tests to use 2.0 API
* This specifically allows the Websocket to create 2.0 json/ripple
and get back a 2.0 response.
* Add test for malformed json2
* Add check for parse failure
* Add check for params to be in array form.
* Correct type-o discovered in tests due to stricter checking.
* Add API version to the WSClient & JSONRPCClient test
* Update source.dox with more headers
