Commit Graph

13 Commits

Author SHA1 Message Date
Etan Kissling 994339c7ee
adjust checkpoint tracking for devnets (#4039)
Track checkpoints more defensively on devnets with low participation.
2022-08-29 09:26:01 +02:00
Etan Kissling f9536fd14b
fork choice cleanups (#3849)
Removes a few extra-ambitious templates to make `self` updates explicit,
and moves the `FinalityCheckpoints` type from `base` to `helpers` as it
is an additional Nimbus specific type not defined by spec.
2022-07-10 15:26:29 +00:00
Etan Kissling 2a2bcea70d
group justified and finalized `Checkpoint` (#3841)
The justified and finalized `Checkpoint` are frequently passed around
together. This introduces a new `FinalityCheckpoint` data structure that
combines them into one.

Due to the large usage of this structure in fork choice, also took this
opportunity to update fork choice tests to the latest v1.2.0-rc.1 spec.
Many additional tests enabled, some need more work, e.g. EL mock blocks.
Also implemented `discard_equivocations` which was skipped in #3661,
and improved code reuse across fork choice logic while at it.
2022-07-06 13:33:02 +03:00
tersec 8eb5d5de09
use ZERO_HASH for default(Eth2Digest)/Eth2Digest() in func calls (#3770) 2022-06-18 04:57:37 +00:00
tersec d358299875
fork choice proposer boosting support (#3349)
* fork choice proposer boosting support

* detect nodeDelta underflow/overflow
2022-02-04 12:59:40 +01:00
Mamy Ratsimbazafy 97da6e1365
Fork choice EF consensus tests (#3041)
* add EF fork choice tests to CI

* checkpoints

* compilation fixes and add test to preset dependent suite

* support longpaths on Windows CI

* skip minimal tests (long paths issue + impl detals tested)

* fix stackoverflow on some platforms

* rebase on top of https://github.com/status-im/nimbus-eth2/pull/3054

* fix stack usage
2021-11-25 19:41:39 +01:00
Jacek Sieka 7a622e8505
rework spec imports (#2779)
The spec imports are a mess to work with, so this branch cleans them up
a bit to ensure that we avoid generic sandwitches and that importing
stuff generally becomes easier.

* reexport crypto/digest/presets because these are part of the public
symbol set of the rest of the spec types
* don't export `merge` types from `base` - this causes circular deps
* fix circular deps in `ssz/spec_types` - this is the first step in
disentangling ssz from spec
* be explicit about phase0 vs altair - longer term, `altair` will become
the "natural" type set, then merge and so on, so no point in giving
`phase0` special preferential treatment
2021-08-12 13:08:20 +00:00
tersec b1d5609171
remove false OnBlockAdded dependency on phase0 HashedBeaconState (#2661)
* remove false OnBlockAdded dependency on phase.HashedBeaconState

* introduce altair data types into block_clearance; update some alpha.6 spec refs to alpha.7; add get_active_validator_indices_len ForkedHashedBeaconState wrapper

* switch many modules from using datatypes (with phase0 states/blocks) to datatypes/base (fork-independent); update spec refs from alpha.6 to alpha.7 and remove rm'd G2_POINT_AT_INFINITY

* switch more modules from using datatypes (with phase0 states/blocks) to datatypes/base (fork-independent); update spec refs from alpha.6 to alpha.7

* remove unnecessary phase0-only wrapper of get_attesting_indices(); allow signatures_batch to process either fork; remove O(n^2) nested loop in process_inactivity_updates(); add altair support to getAttestationsforTestBlock()

* add Altair versions of asSigVerified(), asTrusted(), and makeBeaconBlock()

* fix spec URL to be Altair for Altair makeBeaconBlock()
2021-06-21 08:35:24 +00:00
Mamy Ratsimbazafy 81788becfc
Fork choice - almost free pruning - fix #1534 (#1535)
* initial - cheaper pruning - addresses  #1534

* Pass tests: update offset when pruning, proper handling of pruned parents

* Use options instead of nil for nilable newHead (finalization passing but rootcause not solved)

* First line of defense against stackoverflow in tests

* Fix compute_delta offset after pruning

* Rebase fix - medalla ready

* Remove Option[BlockRef]
2020-08-26 17:23:34 +02:00
Jacek Sieka fd4d319450
Use fork v2 (#1358)
* fork choice fixes, round 3

* introduce checkpoint tracker
* split out fork choice backend that is independent of dag
* correctly update best checkpoint to use for head selection
* correctly consider wall clock when processing attestations
* preload head history only (only one history is loaded from database
anyway)
* love the DAG

* switch to fork choice v2

also remove BlockRef.children

* fix
2020-07-25 21:41:12 +02:00
Jacek Sieka f0720faf17
Fork choice fixes (#1350)
* remove cruft

* reenable fork choice and fix several issues

* in addForkChoice_v2, the `.error` field would be accessed even when
Result is ok
* remove workaround for invalid block structure in fork choice
* fix `tmpState` being used recursively in callback, causing state
corruption while processing attestation
* fix block callback being called twice per block
* pass state to callback to avoid unnecessary rewinding

* enable head select, fix another bug

* never use `get` without `isOk`
* log nil blockref in case blockref is nil

* add missing error checking

* use correct epoch when updating attestation message
2020-07-22 11:42:55 +02:00
Jacek Sieka ed74770451
spec: regulate exceptions (#913)
* spec: regulate exceptions

* a few more simple raises
2020-04-22 07:53:02 +02:00
Mamy Ratsimbazafy cbc998ed93
[Ready 1/2] Fork choice rewrite (#865)
* initial fork-choice refactor

* Add fork_choice test for "no votes"

* Initial test with voting: fix handling of unknown validators and parent blocks

* Fix tiebreak of votes

* Cleanup debugging traces

* Complexify the vote test

* fakeHash use the bigEndian repr of number + fix tiebreak for good

* Stash changes: found critical bug in nimcrypto `==` and var openarray

* Passing fork choice tests with varying votes

* Add FFG fork choice scenario + fork choice to the test suite

* Not sure why lmdb / rocksdb reappeared in rebase

* Add sanity checks to .nimble file + integrate fork choice tests to the test DB and test timing

* Cleanup debugging echos

* nimcrypto fix https://github.com/status-im/nim-beacon-chain/pull/864 as been merged, remove TODO comment

* Turn fork choice exception-free

* Cleanup "result" to ensure early return is properly used

* Add a comment on private/public error code vs Result

* result -> results following https://github.com/status-im/nim-beacon-chain/pull/866

* Address comments:
- raises: [Defect] doesn't work -> TODO
- process_attestation cannot fail
- try/except as expression pending Nim v1.2.0
- cleanup TODOs

* re-enable all sanity checks

* tag no raise for process_attestation

* use raises defect everywhere in fork choice and fix process_attestation test
2020-04-09 18:15:00 +02:00