Commit Graph

3387 Commits

Author SHA1 Message Date
Paul Hauner
5a6e90428b
Ensure attestations are created with empty signature (#960)
* Ensure attestations are created with empty sig

* Update docs
2020-03-30 09:29:29 +11:00
Age Manning
6ca4f4709b
Connects the attestation service to network components (#961)
* Sends attestations to the attestation service for processing

* Adds 'attnets' field to local ENR

* Adds ENR bitfield modification logic

* Link attestation service to discovery

- Updates discv5
- Links discover events to discovery
- Support for ENRBitfield

* Adds discovery config params, correct warnings

* Rust fmt fixes

* Correct tests
2020-03-25 22:18:06 +11:00
Paul Hauner
fbcf0f8e2e
Update VC and BN APIs for naive aggregation (#950)
* Refactor `Attestation` production

* Add constant

* Start refactor for aggregation

* Return early when no attesting validators

* Refactor into individual functions

* Tidy, add comments

* Add first draft of NaiveAggregationPool

* Further progress on naive aggregation pool

* Fix compile errors in VC

* Change locking logic for naive pool

* Introduce AttesationType

* Add pruning, comments

* Add MAX_ATTESTATIONS_PER_SLOT restriction

* Add pruning based on slot

* Update BN for new aggregation fns

* Fix test compile errors

* Fix failing rest_api test

* Move SignedAggregateAndProof into own file

* Update docs, fix warning

* Tidy some formatting in validator API

* Remove T::default_spec from signing

* Fix failing rest test

* Tidy

* Add test, fix bug

* Improve naive pool tests

* Add max attestations test

* Revert changes to the op_pool

* Refactor timer
2020-03-25 21:14:05 +11:00
Paul Hauner
784997b09b
Ensure correct path for genesis state file (#951) 2020-03-25 12:31:11 +11:00
Age Manning
58111cddb2
Adds ENR "eth2" field and Fork logic to networking (#953)
* Merge #913

* Correct release tests

* Completed release test corrections

* Initial work on upgrading discovery

* Updates discovery to latest version

* Update ENR initialisation logic

* Remove debug statements

* Shifts timing units to slots

* Initial work

* Add initial fork versioning and EnrForkId

* Correct linking for EnrForkId

* Adds eth2 field to local ENR

* Initial work to eth2 field integration

* Integrate eth2 field into discovery

* temp commit

* Add a timer to adjust fork versions during a hard fork for the ENR
2020-03-24 21:45:53 +11:00
Age Manning
af1c5c326c
Handle timing underflows in attestation service (#952) 2020-03-24 21:05:22 +11:00
Age Manning
2b6da4b8de
Initial fork versioning (#934)
* Merge #913

* Correct release tests

* Completed release test corrections

* Initial work on upgrading discovery

* Updates discovery to latest version

* Update ENR initialisation logic

* Remove debug statements

* Shifts timing units to slots

* Initial work

* Add initial fork versioning and EnrForkId

* Correct linking for EnrForkId
2020-03-24 19:10:28 +11:00
Sacha Saint-Leger
f6a6de2c5d
Become a Validator guides: update (#928)
* Edit become-a-validator-docker.md

* Update Become a Validator guides

* Update Become a Validator guides

* Update Become a Validator guides

* fix inconsistency
2020-03-23 19:21:53 +11:00
Age Manning
f8bc045a01
Fix race condition in the syncing sim (#944)
* Fix race condition in the syncing sim

* Update another strategy
2020-03-23 18:28:13 +11:00
divma
47aef629d1
move the parent lookup process to a dedicated thread (#906)
* Upgrade the parent lookup logic

* Apply reviewer suggestions

* move the parent lookup process to a dedicated thread

* move the logic of parent lookup and range syncing to a block processor

* review suggestions

* more review suggestions

* Add small logging changes

* Process parent lookups in reverse

Co-authored-by: Age Manning <Age@AgeManning.com>
2020-03-23 12:07:41 +11:00
/raw PONG _GHMoaCXLT
a5fbaef469
Github: Add version to issue template (#937) 2020-03-20 12:18:31 +11:00
Age Manning
24a384d0d6
Attestation service slots (#931)
* Merge #913

* Correct release tests

* Completed release test corrections

* Initial work on upgrading discovery

* Updates discovery to latest version

* Update ENR initialisation logic

* Remove debug statements

* Shifts timing units to slots
2020-03-19 15:11:54 +11:00
Age Manning
e4ca896694
Discovery v0.2.0 Update (#926)
* Merge #913

* Correct release tests

* Completed release test corrections

* Initial work on upgrading discovery

* Updates discovery to latest version

* Update ENR initialisation logic

* Remove debug statements
2020-03-19 15:11:08 +11:00
Akihito Nakano
8c716b2e92
Fix incomplete build in case of the machine is offline (#935) 2020-03-19 11:22:15 +11:00
Herman Junge
70e39cc6a1
Update reward calculations to v0.11.0 - Handle u64 overflow (#920) (#921)
* Reference https://github.com/ethereum/eth2.0-specs/pull/1635

* Suffix '_ebi' on each effected variable
2020-03-19 11:02:42 +11:00
Age Manning
f160f7a21b
Book corrections to allow http api access for docker use (#911)
* Book corrections to allow http api access for docker use

* Limit beacon node API to localhost

* Add localhost to comment
2020-03-18 16:42:49 +11:00
Paul Hauner
3c8fe00510
Add sync-speed metric (#898) 2020-03-18 09:25:29 +11:00
Age Manning
41c3294c16
Test corrections (#925)
* Merge #913

* Correct release tests

* Completed release test corrections
2020-03-17 23:05:55 +11:00
Age Manning
95c8e476bc
Initial work towards v0.2.0 (#924)
* Remove ping protocol

* Initial renaming of network services

* Correct rebasing relative to latest master

* Start updating types

* Adds HashMapDelay struct to utils

* Initial network restructure

* Network restructure. Adds new types for v0.2.0

* Removes build artefacts

* Shift validation to beacon chain

* Temporarily remove gossip validation

This is to be updated to match current optimisation efforts.

* Adds AggregateAndProof

* Begin rebuilding pubsub encoding/decoding

* Signature hacking

* Shift gossipsup decoding into eth2_libp2p

* Existing EF tests passing with fake_crypto

* Shifts block encoding/decoding into RPC

* Delete outdated API spec

* All release tests passing bar genesis state parsing

* Update and test YamlConfig

* Update to spec v0.10 compatible BLS

* Updates to BLS EF tests

* Add EF test for AggregateVerify

And delete unused hash2curve tests for uncompressed points

* Update EF tests to v0.10.1

* Use optional block root correctly in block proc

* Use genesis fork in deposit domain. All tests pass

* Fast aggregate verify test

* Update REST API docs

* Fix unused import

* Bump spec tags to v0.10.1

* Add `seconds_per_eth1_block` to chainspec

* Update to timestamp based eth1 voting scheme

* Return None from `get_votes_to_consider` if block cache is empty

* Handle overflows in `is_candidate_block`

* Revert to failing tests

* Fix eth1 data sets test

* Choose default vote according to spec

* Fix collect_valid_votes tests

* Fix `get_votes_to_consider` to choose all eligible blocks

* Uncomment winning_vote tests

* Add comments; remove unused code

* Reduce seconds_per_eth1_block for simulation

* Addressed review comments

* Add test for default vote case

* Fix logs

* Remove unused functions

* Meter default eth1 votes

* Fix comments

* Progress on attestation service

* Address review comments; remove unused dependency

* Initial work on removing libp2p lock

* Add LRU caches to store (rollup)

* Update attestation validation for DB changes (WIP)

* Initial version of should_forward_block

* Scaffold

* Progress on attestation validation

Also, consolidate prod+testing slot clocks so that they share much
of the same implementation and can both handle sub-slot time changes.

* Removes lock from libp2p service

* Completed network lock removal

* Finish(?) attestation processing

* Correct network termination future

* Add slot check to block check

* Correct fmt issues

* Remove Drop implementation for network service

* Add first attempt at attestation proc. re-write

* Add version 2 of attestation processing

* Minor fixes

* Add validator pubkey cache

* Make get_indexed_attestation take a committee

* Link signature processing into new attn verification

* First working version

* Ensure pubkey cache is updated

* Add more metrics, slight optimizations

* Clone committee cache during attestation processing

* Update shuffling cache during block processing

* Remove old commented-out code

* Fix shuffling cache insert bug

* Used indexed attestation in fork choice

* Restructure attn processing, add metrics

* Add more detailed metrics

* Tidy, fix failing tests

* Fix failing tests, tidy

* Address reviewers suggestions

* Disable/delete two outdated tests

* Modification of validator for subscriptions

* Add slot signing to validator client

* Further progress on validation subscription

* Adds necessary validator subscription functionality

* Add new Pubkeys struct to signature_sets

* Refactor with functional approach

* Update beacon chain

* Clean up validator <-> beacon node http types

* Add aggregator status to ValidatorDuty

* Impl Clone for manual slot clock

* Fix minor errors

* Further progress validator client subscription

* Initial subscription and aggregation handling

* Remove decompressed member from pubkey bytes

* Progress to modifying val client for attestation aggregation

* First draft of validator client upgrade for aggregate attestations

* Add hashmap for indices lookup

* Add state cache, remove store cache

* Only build the head committee cache

* Removes lock on a network channel

* Partially implement beacon node subscription http api

* Correct compilation issues

* Change `get_attesting_indices` to use Vec

* Fix failing test

* Partial implementation of timer

* Adds timer, removes exit_future, http api to op pool

* Partial multiple aggregate attestation handling

* Permits bulk messages accross gossipsub network channel

* Correct compile issues

* Improve gosispsub messaging and correct rest api helpers

* Added global gossipsub subscriptions

* Update validator subscriptions data structs

* Tidy

* Re-structure validator subscriptions

* Initial handling of subscriptions

* Re-structure network service

* Add pubkey cache persistence file

* Add more comments

* Integrate persistence file into builder

* Add pubkey cache tests

* Add HashSetDelay and introduce into attestation service

* Handles validator subscriptions

* Add data_dir to beacon chain builder

* Remove Option in pubkey cache persistence file

* Ensure consistency between datadir/data_dir

* Fix failing network test

* Peer subnet discovery gets queued for future subscriptions

* Reorganise attestation service functions

* Initial wiring of attestation service

* First draft of attestation service timing logic

* Correct minor typos

* Tidy

* Fix todos

* Improve tests

* Add PeerInfo to connected peers mapping

* Fix compile error

* Fix compile error from merge

* Split up block processing metrics

* Tidy

* Refactor get_pubkey_from_state

* Remove commented-out code

* Rename state_cache -> checkpoint_cache

* Rename Checkpoint -> Snapshot

* Tidy, add comments

* Tidy up find_head function

* Change some checkpoint -> snapshot

* Add tests

* Expose max_len

* Remove dead code

* Tidy

* Fix bug

* Add sync-speed metric

* Add first attempt at VerifiableBlock

* Start integrating into beacon chain

* Integrate VerifiableBlock

* Rename VerifableBlock -> PartialBlockVerification

* Add start of typed methods

* Add progress

* Add further progress

* Rename structs

* Add full block verification to block_processing.rs

* Further beacon chain integration

* Update checks for gossip

* Add todo

* Start adding segement verification

* Add passing chain segement test

* Initial integration with batch sync

* Minor changes

* Tidy, add more error checking

* Start adding chain_segment tests

* Finish invalid signature tests

* Include single and gossip verified blocks in tests

* Add gossip verification tests

* Start adding docs

* Finish adding comments to block_processing.rs

* Rename block_processing.rs -> block_verification

* Start removing old block processing code

* Fixes beacon_chain compilation

* Fix project-wide compile errors

* Remove old code

* Correct code to pass all tests

* Fix bug with beacon proposer index

* Fix shim for BlockProcessingError

* Only process one epoch at a time

* Fix loop in chain segment processing

* Correct tests from master merge

* Add caching for state.eth1_data_votes

* Add BeaconChain::validator_pubkey

* Revert "Add caching for state.eth1_data_votes"

This reverts commit cd73dcd6434fb8d8e6bf30c5356355598ea7b78e.

Co-authored-by: Grant Wuerker <gwuerker@gmail.com>
Co-authored-by: Michael Sproul <michael@sigmaprime.io>
Co-authored-by: Michael Sproul <micsproul@gmail.com>
Co-authored-by: pawan <pawandhananjay@gmail.com>
Co-authored-by: Paul Hauner <paul@paulhauner.com>
2020-03-17 17:24:44 +11:00
FawadHa1der
c198bddf9e
fix typo in httpnetwork doc (#904) 2020-03-17 11:07:59 +11:00
Age Manning
756b110854
Fix master failing test (#915)
* Use a valid secret key in ssz test

* Correct test_random secret key tests
2020-03-17 11:07:52 +11:00
Age Manning
b1d23ec294
Adds valid block response to http book example (#910) 2020-03-16 11:38:55 +11:00
Age Manning
5d8a085880
Upgrade the parent lookup logic (#895)
* Upgrade the parent lookup logic
2020-03-13 15:51:03 +11:00
Michael Sproul
6b2e9ff246
Less noisy logs for unaligned finalized blocks (#901) 2020-03-12 12:11:46 +11:00
Paul Hauner
8c5bcfe53a
Optimise beacon chain persistence (#851)
* Unfinished progress

* Update more persistence code

* Start fixing tests

* Combine persist head and fork choice

* Persist head on reorg

* Gracefully handle op pool and eth1 cache missing

* Fix test failure

* Address Michael's comments
2020-03-06 16:09:41 +11:00
Paul Hauner
a87e8c55fc
Add a GitHub action to publish The Book (#877) 2020-03-06 10:54:07 +11:00
Paul Hauner
6656cb00e4
Optimize attestation processing (#841)
* Start updating types

* WIP

* Signature hacking

* Existing EF tests passing with fake_crypto

* Updates

* Delete outdated API spec

* The refactor continues

* It compiles

* WIP test fixes

* All release tests passing bar genesis state parsing

* Update and test YamlConfig

* Update to spec v0.10 compatible BLS

* Updates to BLS EF tests

* Add EF test for AggregateVerify

And delete unused hash2curve tests for uncompressed points

* Update EF tests to v0.10.1

* Use optional block root correctly in block proc

* Use genesis fork in deposit domain. All tests pass

* Cargo fmt

* Fast aggregate verify test

* Update REST API docs

* Cargo fmt

* Fix unused import

* Bump spec tags to v0.10.1

* Add `seconds_per_eth1_block` to chainspec

* Update to timestamp based eth1 voting scheme

* Return None from `get_votes_to_consider` if block cache is empty

* Handle overflows in `is_candidate_block`

* Revert to failing tests

* Fix eth1 data sets test

* Choose default vote according to spec

* Fix collect_valid_votes tests

* Fix `get_votes_to_consider` to choose all eligible blocks

* Uncomment winning_vote tests

* Add comments; remove unused code

* Reduce seconds_per_eth1_block for simulation

* Addressed review comments

* Add test for default vote case

* Fix logs

* Remove unused functions

* Meter default eth1 votes

* Fix comments

* Address review comments; remove unused dependency

* Add first attempt at attestation proc. re-write

* Add version 2 of attestation processing

* Minor fixes

* Add validator pubkey cache

* Make get_indexed_attestation take a committee

* Link signature processing into new attn verification

* First working version

* Ensure pubkey cache is updated

* Add more metrics, slight optimizations

* Clone committee cache during attestation processing

* Update shuffling cache during block processing

* Remove old commented-out code

* Fix shuffling cache insert bug

* Used indexed attestation in fork choice

* Restructure attn processing, add metrics

* Add more detailed metrics

* Tidy, fix failing tests

* Fix failing tests, tidy

* Disable/delete two outdated tests

* Tidy

* Add pubkey cache persistence file

* Add more comments

* Integrate persistence file into builder

* Add pubkey cache tests

* Add data_dir to beacon chain builder

* Remove Option in pubkey cache persistence file

* Ensure consistency between datadir/data_dir

* Fix failing network test

* Tidy

* Fix todos

* Add attestation processing tests

* Add another test

* Only run attestation tests in release

* Make attestation tests MainnetEthSpec

* Address Michael's comments

* Remove redundant check

* Fix warning

* Fix failing test

Co-authored-by: Michael Sproul <micsproul@gmail.com>
Co-authored-by: Pawan Dhananjay <pawandhananjay@gmail.com>
2020-03-05 17:19:35 +11:00
Paul Hauner
c141f1cc03
Use --locked, upgrade Dockerfile Rust version (#894)
* Upgrade docker Rust version

* Use --locked for cargo install
2020-03-05 12:50:24 +11:00
Paul Hauner
08ca9504aa
Fix compile issue (#893) 2020-03-05 10:35:39 +11:00
Paul Hauner
64ec3bd671
Testnet5 docs (#892)
* Merge in ethdever book changes

* Remove ethdenver docs
2020-03-05 10:12:34 +11:00
Paul Hauner
7f6ae4c2f5
Refactor tree hashing (#861)
* Pre-allocated tree hash caches

* Add SmallVec to tree hash cache

* Avoid allocation for validator.pubkey

* Avoid iterator which seems to be doing heap alloc

* Add more smallvecs

* MOAR SMALLVEC

* Move non-test code to Hash256 tree hash

* Fix byte ordering error

* Add incomplete but working merkle stream impl

* Fix zero hash error

* Add zero hash fn

* Add MerkleStream comments

* Add smallvec, tidy

* Integrate into tree hash derive

* Update ssz_types tree hash

* Don't heap alloc for mix in length

* Add byte-level streaming to MerkleStream

* Avoid recursion in write method

* Update BLS to MerkleStream

* Fix some not-compiling tests

* Remove debug profiling

* Remove code duplication

* Move beacon state tree hash to new hasher

* Fix failing tests

* Update comments

* Add some fast-paths to tree_hash::merkle_root

* Remove unncessary test

* Rename MerkleStream -> MerkleHasher

* Rename new_with_leaf_count -> with_leaves

* Tidy

* Remove NonZeroUsize

* Remove todo

* Update smallvec
2020-03-05 08:07:27 +11:00
Paul Hauner
12999fb06c
Faster attestation production (#838)
* Start adding interop genesis state to lcli

* Use more efficient method to generate genesis state

* Remove duplicate int_to_bytes32

* Add lcli command to change state genesis time

* Add option to allow VC to start with unsynced BN

* Set VC to do parallel key loading

* Don't default to dummy eth1 backend

* Add endpoint to dump operation pool

* Add metrics for op pool

* Remove state clone for slot notifier

* Add mem size approximation for tree hash cache

* Avoid cloning tree hash when getting head

* Avoid cloning tree hash when getting head

* Add working arena-based cached tree hash

* Add another benchmark

* Add pre-allocation for caches

* Make cache nullable

* Fix bugs in cache tree hash

* Add validator tree hash optimization

* Optimize hash_concat

* Make hash32_concat return fixed-len array

* Fix failing API tests

* Add new beacon state cache struct

* Add validator-specific cache

* Separate list and values arenas

* Add parallel validator registry hashing

* Remove MultiTreeHashCache

* Remove cached tree hash macro

* Fix failing tree hash test

* Address Michael's comments

* Add CachedTreeHash impl for ef tests

* Fix messy merge conflict

* Optimize attestation production

* Add first basic optimizations

* Fix SlotOutOfBounds error

* Resolved missed merge conflicts

* Fix another missed merge conflict

* Fix more merge conflict issues

* Add `StateSkipConfig`

* Fix test compile errors

* Add failing test

* Fix bug, make tests pass

* Add comment

* Delete unused function

* Replace deleted comment
2020-03-04 17:10:22 +11:00
Michael Sproul
1f16d8fe4d
Add methods to delete blocks and states from disk (#843)
Closes #833
2020-03-04 16:48:35 +11:00
Akihito Nakano
12d9b42188
Fix incorrect error message in ClientBuilder (#888)
* Fix incorrect error message in ClientBuilder

* Run cargo fmt --all
2020-03-04 16:37:13 +11:00
Paul Hauner
ca0314ee55
Add "new-testnet" command to lcli (#853)
* Add new command to lcli

* Add lcli to dockerfile

* Add min validator count param

* Fix bug in arg parsing

* Fix 0x address prefix issue

* Add effective balance increment

* Add ejection balance

* Fix PR comments
2020-03-04 14:28:02 +11:00
Paul Hauner
871163aecc
Add optimized SSZ decoding for fixed-len items (#865)
* Add custom SSZ decode for Validator

* Move efficient decode into macro

* Don't allocate SSZ offset to heap

* Use smallvec in SszDecoder

* Fix test compile error
2020-03-04 11:45:01 +11:00
Paul Hauner
58fb144276
Remove testnet dir from repo (#857)
* Pull testnet dir with build script

* Add comment

* Don't hardcode the genesis fork

* Re-enable hard-coded test
2020-03-04 10:02:44 +11:00
realbigsean
6368be148d
Add checks for eth1 chain connection before inserting to op pool (#868) 2020-03-02 14:04:49 +11:00
Paul Hauner
fbb630793e
Attempt to remove a tree hash from block replaying (#862)
* Attempt to remove a tree hash from block replaying

* Add missed thing
2020-03-02 13:40:58 +11:00
Adam Szkoda
f6f924a7a6
Correct typo (#872) 2020-03-02 13:40:19 +11:00
Pawan Dhananjay
e85e337540
Change port in test to some fairly random number (#874) 2020-03-02 13:36:34 +11:00
Pawan Dhananjay
4d60694443
Add support for noise protocol (#873)
* Add noise support with fallback to secio

* Add config parameter for noise support

* Add secio/noise compatibility test

* Cleanup

* Remove config parameter for noise support

* Modify test to work between a secio swarm and a noise libp2p service

* Minor fixes
2020-03-02 13:35:20 +11:00
Paul Hauner
0c96c515a0
Update book deposit contract address (#858) 2020-02-25 10:15:11 +11:00
Paul Hauner
1cf8769c07
Ensure deposits are generated with correct fork (#855)
* Ensure genesis fork is applied to spec

* Ensure account man uses testnet spec
2020-02-25 09:01:32 +11:00
Paul Hauner
123c63119d
Remove temporary heap allocations during shuffling (#867)
* Remove temp allocs in compute shuffled index

* Update shuffle list
2020-02-25 09:00:09 +11:00
Age Manning
2a9c718a20
Remove network lock (#840)
* Initial work on removing libp2p lock

* Removes lock from libp2p service

* Completed network lock removal

* Correct network termination future

* Correct fmt issues

* Remove Drop implementation for network service

* Address reviewers suggestions

* Fix dht persistence test (#844)

* Fix persistence test

* Block until dht is persisted

* Fix libp2p test

* Correct test ordering check

* Remove expensive tests from debug testing

Co-authored-by: Pawan Dhananjay <pawandhananjay@gmail.com>
2020-02-19 22:12:25 +11:00
Age Manning
26be30bc4c
Handle simultaneous RPC negotiation errors (#846) 2020-02-19 15:39:20 +11:00
Pawan Dhananjay
74c34d1602
Add attester/proposer slashing endpoints (#856)
* Remove deprecated api_spec.yaml

* add prototype for proposer slashing

* remove clippy warnings

* Add proposer_slashing API

* Prototype for attester slashing API call

* Fix logic error in operation pool

* Finish test for attester_slashing api call

* Clean proposer_slashing test

* Cargo fmt

* Remove useless to_string after format! macro

* Cargo fmt

* Update book with new api calls

* Re-enable proposer slashing verification

* Update book with appropriate test example

* Fix proposer_slashing test

* Update comments and tests for clearer code

* Remove extraneous comments

* Fix test

* Minor fix

* Address reviewer comments

Co-authored-by: pscott <30843220+pscott@users.noreply.github.com>
2020-02-14 22:35:18 +11:00
Pawan Dhananjay
7a880dd23c
Update docs for api endpoints (#852)
* Add docs for /beacon endpoints

* Add docs for /network endpoints

* Add docs for /spec endpoint

* Add docs for /advanced endpoint

* Add docs for /validator endpoint

* Minor fixes

* Address reviewer comments
2020-02-14 19:17:12 +11:00
Michael Sproul
371e5adcf8
Update to Spec v0.10 (#817)
* Start updating types

* WIP

* Signature hacking

* Existing EF tests passing with fake_crypto

* Updates

* Delete outdated API spec

* The refactor continues

* It compiles

* WIP test fixes

* All release tests passing bar genesis state parsing

* Update and test YamlConfig

* Update to spec v0.10 compatible BLS

* Updates to BLS EF tests

* Add EF test for AggregateVerify

And delete unused hash2curve tests for uncompressed points

* Update EF tests to v0.10.1

* Use optional block root correctly in block proc

* Use genesis fork in deposit domain. All tests pass

* Cargo fmt

* Fast aggregate verify test

* Update REST API docs

* Cargo fmt

* Fix unused import

* Bump spec tags to v0.10.1

* Add `seconds_per_eth1_block` to chainspec

* Update to timestamp based eth1 voting scheme

* Return None from `get_votes_to_consider` if block cache is empty

* Handle overflows in `is_candidate_block`

* Revert to failing tests

* Fix eth1 data sets test

* Choose default vote according to spec

* Fix collect_valid_votes tests

* Fix `get_votes_to_consider` to choose all eligible blocks

* Uncomment winning_vote tests

* Add comments; remove unused code

* Reduce seconds_per_eth1_block for simulation

* Addressed review comments

* Add test for default vote case

* Fix logs

* Remove unused functions

* Meter default eth1 votes

* Fix comments

* Address review comments; remove unused dependency

* Disable/delete two outdated tests

* Bump eth1 default vote warn to error

* Delete outdated eth1 test

Co-authored-by: Pawan Dhananjay <pawandhananjay@gmail.com>
2020-02-11 10:19:36 +11:00