## Issue Addressed
NA
## Proposed Changes
Moves beacon block processing over to the newly-added `GossipProcessor`. This moves the task off the core executor onto the blocking one.
## Additional Info
- With this PR, gossip blocks are being ignored during sync.
## Issue Addressed
#1384
Only catch, as currently implemented, when dialing the multiaddr nodes, there is no way to ask the peer manager if they are already connected or dialing
## Issue Addressed
N/A
## Proposed Changes
Introduces the `GossipProcessor`, a multi-threaded (multi-tasked?), non-blocking processor for some messages from the network which require verification and import into the `BeaconChain`.
Initial testing indicates that this massively improves system stability by (a) moving block tasks from the normal executor (b) spreading out attestation load.
## Additional Info
TBC
## Issue Addressed
#1028
A bit late, but I think if `BlockError` had a kind (the current `BlockError` minus everything on the variants that comes directly from the block) and the original block, more clones could be removed
## Issue Addressed
Sync was breaking occasionally. The root cause appears to be identify crashing as events we being sent to the protocol after nodes were banned. Have not been able to reproduce sync issues since this update.
## Proposed Changes
Only send messages to sub-behaviour protocols if the peer manager thinks the peer is connected. All other messages are dropped.
## Issue Addressed
Recurring sync loop and invalid batch downloading
## Proposed Changes
Shifts the batches to include the first slot of each epoch. This ensures the finalized is always downloaded once a chain has completed syncing.
Also add in logic to prevent re-dialing disconnected peers. Non-performant peers get disconnected during sync, this prevents re-connection to these during sync.
## Additional Info
N/A
## Issue Addressed
N/A
## Proposed Changes
This provides a number of corrections and improvements to gossipsub. Specifically
- Enables options for greater privacy around the message author
- Provides greater flexibility on message validation
- Prevents unvalidated messages from being gossiped
- Shifts the duplicate cache to a time-based cache inside gossipsub
- Updates the message-id to handle bytes
- Bug fixes related to mesh maintenance and topic subscription. This should improve our attestation inclusion rate.
## Issue Addressed
#1388 partially (eth2_libp2p & network)
## Proposed Changes
TLDR at the end
- *Complex types* are 3 on the handlers/Behaviours but the types are `Poll<ComplexType>` where `ComplexType` comes from the traits of libp2p. Those, I don't thing are worth an alias. A couple more were from using tokio combinators and were removed writing things the async way and using [`BoxFuture`](https://docs.rs/futures/0.3.5/futures/future/type.BoxFuture.html)
- The *cognitive complexity*.. I tried to address those before (they come from the poll functions too) and tbh they are cognitively simpler to understand the way they are now. Moving separate parts to functions doesn't add much since that code is not repeated and they all do early returns. If moved those returns would now need to be wrapped in an Option, probably, and checked to be returned again. I would leave them like that but that's just preference.
- *Too many arguments*: They are not easily put together in a wrapping struct since the parameters don't relate semantically (Ex: fn new with a log, a reference to the chain, a peer, etc) but some may differ.
- *Needless returns* were indeed needless
## Additional Info
TLDR: removed needless return, used BoxFuture and async, left the rest untouched since those lgtm
* Process exits and slashings off the network
* Fix rest_api tests
* Add op verification tests
* Add tests for pruning of slashings in the op pool
* Address Paul's review comments
* Update `milagro_bls` to new release (#1183)
* Update milagro_bls to new release
Signed-off-by: Kirk Baird <baird.k@outlook.com>
* Tidy up fake cryptos
Signed-off-by: Kirk Baird <baird.k@outlook.com>
* move SecretHash to bls and put plaintext back
Signed-off-by: Kirk Baird <baird.k@outlook.com>
* Update v0.12.0 to v0.12.1
* Add compute_subnet_for_attestation
* Replace CommitteeIndex topic with Attestation
* Fix warnings
* Fix attestation service tests
* fmt
* Appease clippy
* return error from validator_subscriptions
* move state out of loop
* Fix early break on error
* Get state from slot clock
* Fix beacon state in attestation tests
* Add failing test for lookahead > 1
* Minor change
* Address some review comments
* Add subnet verification to beacon chain
* Move subnet verification to processor
* Pass committee_count_at_slot to ValidatorDuty and ValidatorSubscription
* Pass subnet id for publishing attestations
* Fix attestation service tests
* Fix more tests
* Fix fork choice test
* Remove unused code
* Remove more unused and expensive code
Co-authored-by: Kirk Baird <baird.k@outlook.com>
Co-authored-by: Michael Sproul <michael@sigmaprime.io>
Co-authored-by: Age Manning <Age@AgeManning.com>
Co-authored-by: Paul Hauner <paul@paulhauner.com>
* Layer do_atomically() abstractions properly
* Reduce allocs and DRY get_key_for_col()
* Parameterize HotColdDB with hot and cold item stores
* -impl Store for MemoryStore
* Replace Store uses with HotColdDB
* Ditch Store trait
* cargo fmt
* Style fix
* Readd missing dep that broke the build
* Update `milagro_bls` to new release (#1183)
* Update milagro_bls to new release
Signed-off-by: Kirk Baird <baird.k@outlook.com>
* Tidy up fake cryptos
Signed-off-by: Kirk Baird <baird.k@outlook.com>
* move SecretHash to bls and put plaintext back
Signed-off-by: Kirk Baird <baird.k@outlook.com>
* Update v0.12.0 to v0.12.1
* Use ssz types for Request and error types
* Fix errors
* Constrain BlocksByRangeRequest count to MAX_REQUEST_BLOCKS
* Fix issues after rebasing
* Address review comments
Co-authored-by: Kirk Baird <baird.k@outlook.com>
Co-authored-by: Michael Sproul <michael@sigmaprime.io>
Co-authored-by: Age Manning <Age@AgeManning.com>
* add retry logic to peer discovery and an expiration time for peers
* Restructure discovery
* Add mac build to CI
* Always return an error for Health when not linux
* Change macos workflow
* Rename macos tests
* Update DiscoverPeers messages to pass Instants. Implement PartialEq for AttServiceMessage
* update discover peer queueing to always check existing messages and extend min_ttl as necessary
* update method name and comment
* Correct merge issues
* Add subnet id check to partialeq, fix discover peer message dups
* fix discover peer message dups
* fix discover peer message dups for real this time
Co-authored-by: Age Manning <Age@AgeManning.com>
Co-authored-by: Paul Hauner <paul@paulhauner.com>
* wip: mwake the request id optional
* make the request_id optional
* cleanup
* address clippy lints inside rpc
* WIP: Separate sent RPC events from received ones
* WIP: Separate sent RPC events from received ones
* cleanup
* Separate request ids from substream ids
* Make RPC's message handling independent of RequestIds
* Change behaviour RPC events to be more outside-crate friendly
* Propage changes across the network + router + processor
* Propage changes across the network + router + processor
* fmt
* "tiny" refactor
* more tiny refactors
* fmt eth2-libp2p
* wip: propagating changes
* wip: propagating changes
* cleaning up
* more cleanup
* fmt
* tests HOT fix
Co-authored-by: Age Manning <Age@AgeManning.com>
* Add logging on shutdown
* Replace tokio::spawn with handle.spawn
* Upgrade tokio
* Add a task executor
* Beacon chain tasks use task executor
* Validator client tasks use task executor
* Rename runtime_handle to executor
* Add duration histograms; minor fixes
* Cleanup
* Fix logs
* Fix tests
* Remove random file
* Get enr dependency instead of libp2p
* Address some review comments
* Libp2p takes a TaskExecutor
* Ugly fix libp2p tests
* Move TaskExecutor to own file
* Upgrade Dockerfile rust version
* Minor fixes
* Revert "Ugly fix libp2p tests"
This reverts commit 58d4bb690f52de28d893943b7504d2d0c6621429.
* Pretty fix libp2p tests
* Add spawn_without_exit; change Counter to Gauge
* Tidy
* Move log from RuntimeContext to TaskExecutor
* Fix errors
* Replace histogram with int_gauge for async tasks
* Fix todo
* Fix memory leak in test by exiting all spawned tasks at the end
* Remove redundant method
* Pull out a method out of a struct
* More precise db access abstractions
* Move fake trait method out of it
* cargo fmt
* Fix compilation error after refactoring
* Move another fake method out the Store trait
* Get rid of superfluous method
* Fix refactoring bug
* Rename: SimpleStoreItem -> StoreItem
* Get rid of the confusing DiskStore type alias
* Get rid of SimpleDiskStore type alias
* Correction: A method took both self and a ref to Self
* Port eth1 lib to use stable futures
* Port eth1_test_rig to stable futures
* Port eth1 tests to stable futures
* Port genesis service to stable futures
* Port genesis tests to stable futures
* Port beacon_chain to stable futures
* Port lcli to stable futures
* Fix eth1_test_rig (#1014)
* Fix lcli
* Port timer to stable futures
* Fix timer
* Port websocket_server to stable futures
* Port notifier to stable futures
* Add TODOS
* Update hashmap hashset to stable futures
* Adds panic test to hashset delay
* Port remote_beacon_node to stable futures
* Fix lcli merge conflicts
* Non rpc stuff compiles
* protocol.rs compiles
* Port websockets, timer and notifier to stable futures (#1035)
* Fix lcli
* Port timer to stable futures
* Fix timer
* Port websocket_server to stable futures
* Port notifier to stable futures
* Add TODOS
* Port remote_beacon_node to stable futures
* Partial eth2-libp2p stable future upgrade
* Finished first round of fighting RPC types
* Further progress towards porting eth2-libp2p adds caching to discovery
* Update behaviour
* RPC handler to stable futures
* Update RPC to master libp2p
* Network service additions
* Fix the fallback transport construction (#1102)
* Correct warning
* Remove hashmap delay
* Compiling version of eth2-libp2p
* Update all crates versions
* Fix conversion function and add tests (#1113)
* Port validator_client to stable futures (#1114)
* Add PH & MS slot clock changes
* Account for genesis time
* Add progress on duties refactor
* Add simple is_aggregator bool to val subscription
* Start work on attestation_verification.rs
* Add progress on ObservedAttestations
* Progress with ObservedAttestations
* Fix tests
* Add observed attestations to the beacon chain
* Add attestation observation to processing code
* Add progress on attestation verification
* Add first draft of ObservedAttesters
* Add more tests
* Add observed attesters to beacon chain
* Add observers to attestation processing
* Add more attestation verification
* Create ObservedAggregators map
* Remove commented-out code
* Add observed aggregators into chain
* Add progress
* Finish adding features to attestation verification
* Ensure beacon chain compiles
* Link attn verification into chain
* Integrate new attn verification in chain
* Remove old attestation processing code
* Start trying to fix beacon_chain tests
* Split adding into pools into two functions
* Add aggregation to harness
* Get test harness working again
* Adjust the number of aggregators for test harness
* Fix edge-case in harness
* Integrate new attn processing in network
* Fix compile bug in validator_client
* Update validator API endpoints
* Fix aggreagation in test harness
* Fix enum thing
* Fix attestation observation bug:
* Patch failing API tests
* Start adding comments to attestation verification
* Remove unused attestation field
* Unify "is block known" logic
* Update comments
* Supress fork choice errors for network processing
* Add todos
* Tidy
* Add gossip attn tests
* Disallow test harness to produce old attns
* Comment out in-progress tests
* Partially address pruning tests
* Fix failing store test
* Add aggregate tests
* Add comments about which spec conditions we check
* Dont re-aggregate
* Split apart test harness attn production
* Fix compile error in network
* Make progress on commented-out test
* Fix skipping attestation test
* Add fork choice verification tests
* Tidy attn tests, remove dead code
* Remove some accidentally added code
* Fix clippy lint
* Rename test file
* Add block tests, add cheap block proposer check
* Rename block testing file
* Add observed_block_producers
* Tidy
* Switch around block signature verification
* Finish block testing
* Remove gossip from signature tests
* First pass of self review
* Fix deviation in spec
* Update test spec tags
* Start moving over to hashset
* Finish moving observed attesters to hashmap
* Move aggregation pool over to hashmap
* Make fc attn borrow again
* Fix rest_api compile error
* Fix missing comments
* Fix monster test
* Uncomment increasing slots test
* Address remaining comments
* Remove unsafe, use cfg test
* Remove cfg test flag
* Fix dodgy comment
* Revert "Update hashmap hashset to stable futures"
This reverts commit d432378a3cc5cd67fc29c0b15b96b886c1323554.
* Revert "Adds panic test to hashset delay"
This reverts commit 281502396fc5b90d9c421a309c2c056982c9525b.
* Ported attestation_service
* Ported duties_service
* Ported fork_service
* More ports
* Port block_service
* Minor fixes
* VC compiles
* Update TODOS
* Borrow self where possible
* Ignore aggregates that are already known.
* Unify aggregator modulo logic
* Fix typo in logs
* Refactor validator subscription logic
* Avoid reproducing selection proof
* Skip HTTP call if no subscriptions
* Rename DutyAndState -> DutyAndProof
* Tidy logs
* Print root as dbg
* Fix compile errors in tests
* Fix compile error in test
* Re-Fix attestation and duties service
* Minor fixes
Co-authored-by: Paul Hauner <paul@paulhauner.com>
* Network crate update to stable futures
* Port account_manager to stable futures (#1121)
* Port account_manager to stable futures
* Run async fns in tokio environment
* Port rest_api crate to stable futures (#1118)
* Port rest_api lib to stable futures
* Reduce tokio features
* Update notifier to stable futures
* Builder update
* Further updates
* Convert self referential async functions
* stable futures fixes (#1124)
* Fix eth1 update functions
* Fix genesis and client
* Fix beacon node lib
* Return appropriate runtimes from environment
* Fix test rig
* Refactor eth1 service update
* Upgrade simulator to stable futures
* Lighthouse compiles on stable futures
* Remove println debugging statement
* Update libp2p service, start rpc test upgrade
* Update network crate for new libp2p
* Update tokio::codec to futures_codec (#1128)
* Further work towards RPC corrections
* Correct http timeout and network service select
* Use tokio runtime for libp2p
* Revert "Update tokio::codec to futures_codec (#1128)"
This reverts commit e57aea924acf5cbabdcea18895ac07e38a425ed7.
* Upgrade RPC libp2p tests
* Upgrade secio fallback test
* Upgrade gossipsub examples
* Clean up RPC protocol
* Test fixes (#1133)
* Correct websocket timeout and run on os thread
* Fix network test
* Clean up PR
* Correct tokio tcp move attestation service tests
* Upgrade attestation service tests
* Correct network test
* Correct genesis test
* Test corrections
* Log info when block is received
* Modify logs and update attester service events
* Stable futures: fixes to vc, eth1 and account manager (#1142)
* Add local testnet scripts
* Remove whiteblock script
* Rename local testnet script
* Move spawns onto handle
* Fix VC panic
* Initial fix to block production issue
* Tidy block producer fix
* Tidy further
* Add local testnet clean script
* Run cargo fmt
* Tidy duties service
* Tidy fork service
* Tidy ForkService
* Tidy AttestationService
* Tidy notifier
* Ensure await is not suppressed in eth1
* Ensure await is not suppressed in account_manager
* Use .ok() instead of .unwrap_or(())
* RPC decoding test for proto
* Update discv5 and eth2-libp2p deps
* Fix lcli double runtime issue (#1144)
* Handle stream termination and dialing peer errors
* Correct peer_info variant types
* Remove unnecessary warnings
* Handle subnet unsubscription removal and improve logigng
* Add logs around ping
* Upgrade discv5 and improve logging
* Handle peer connection status for multiple connections
* Improve network service logging
* Improve logging around peer manager
* Upgrade swarm poll centralise peer management
* Identify clients on error
* Fix `remove_peer` in sync (#1150)
* remove_peer removes from all chains
* Remove logs
* Fix early return from loop
* Improved logging, fix panic
* Partially correct tests
* Stable futures: Vc sync (#1149)
* Improve syncing heuristic
* Add comments
* Use safer method for tolerance
* Fix tests
* Stable futures: Fix VC bug, update agg pool, add more metrics (#1151)
* Expose epoch processing summary
* Expose participation metrics to prometheus
* Switch to f64
* Reduce precision
* Change precision
* Expose observed attesters metrics
* Add metrics for agg/unagg attn counts
* Add metrics for gossip rx
* Add metrics for gossip tx
* Adds ignored attns to prom
* Add attestation timing
* Add timer for aggregation pool sig agg
* Add write lock timer for agg pool
* Add more metrics to agg pool
* Change map lock code
* Add extra metric to agg pool
* Change lock handling in agg pool
* Change .write() to .read()
* Add another agg pool timer
* Fix for is_aggregator
* Fix pruning bug
Co-authored-by: pawan <pawandhananjay@gmail.com>
Co-authored-by: Paul Hauner <paul@paulhauner.com>
* Add PH & MS slot clock changes
* Account for genesis time
* Add progress on duties refactor
* Add simple is_aggregator bool to val subscription
* Start work on attestation_verification.rs
* Add progress on ObservedAttestations
* Progress with ObservedAttestations
* Fix tests
* Add observed attestations to the beacon chain
* Add attestation observation to processing code
* Add progress on attestation verification
* Add first draft of ObservedAttesters
* Add more tests
* Add observed attesters to beacon chain
* Add observers to attestation processing
* Add more attestation verification
* Create ObservedAggregators map
* Remove commented-out code
* Add observed aggregators into chain
* Add progress
* Finish adding features to attestation verification
* Ensure beacon chain compiles
* Link attn verification into chain
* Integrate new attn verification in chain
* Remove old attestation processing code
* Start trying to fix beacon_chain tests
* Split adding into pools into two functions
* Add aggregation to harness
* Get test harness working again
* Adjust the number of aggregators for test harness
* Fix edge-case in harness
* Integrate new attn processing in network
* Fix compile bug in validator_client
* Update validator API endpoints
* Fix aggreagation in test harness
* Fix enum thing
* Fix attestation observation bug:
* Patch failing API tests
* Start adding comments to attestation verification
* Remove unused attestation field
* Unify "is block known" logic
* Update comments
* Supress fork choice errors for network processing
* Add todos
* Tidy
* Add gossip attn tests
* Disallow test harness to produce old attns
* Comment out in-progress tests
* Partially address pruning tests
* Fix failing store test
* Add aggregate tests
* Add comments about which spec conditions we check
* Dont re-aggregate
* Split apart test harness attn production
* Fix compile error in network
* Make progress on commented-out test
* Fix skipping attestation test
* Add fork choice verification tests
* Tidy attn tests, remove dead code
* Remove some accidentally added code
* Fix clippy lint
* Rename test file
* Add block tests, add cheap block proposer check
* Rename block testing file
* Add observed_block_producers
* Tidy
* Switch around block signature verification
* Finish block testing
* Remove gossip from signature tests
* First pass of self review
* Fix deviation in spec
* Update test spec tags
* Start moving over to hashset
* Finish moving observed attesters to hashmap
* Move aggregation pool over to hashmap
* Make fc attn borrow again
* Fix rest_api compile error
* Fix missing comments
* Fix monster test
* Uncomment increasing slots test
* Address remaining comments
* Remove unsafe, use cfg test
* Remove cfg test flag
* Fix dodgy comment
* Ignore aggregates that are already known.
* Unify aggregator modulo logic
* Fix typo in logs
* Refactor validator subscription logic
* Avoid reproducing selection proof
* Skip HTTP call if no subscriptions
* Rename DutyAndState -> DutyAndProof
* Tidy logs
* Print root as dbg
* Fix compile errors in tests
* Fix compile error in test
* track whether we have aggregate validator subscriptions to exact subnets, so we know whether or not to drop incoming attestations
* fix is aggregator check
* fix CI
Co-authored-by: Age Manning <Age@AgeManning.com>
* Prevent duplicate parent block lookups
* Updates logic for handling re-status'd peers
* Allow block lookup if the block is close to head
* Correct ordering of sync logs
* Remove comments in block processer, clean up sim
* Connect sync logic to network globals
* Add further sync info to sync status
* Build new syncing HTTP API methods
* Fix bug in updating sync state
* Highest slot is current slot
* Update book for syncing API
* Minor log bumps
* Initial building of extended RPC methods
* Wire in extended RPC methods
* Merge initial peer management template
* Add a PeerDB and give the peer manager some basic functions
* Initial connection of peer manager
* Add peer manager to lighthouse
* Connect peer manager with new RPC methods
* Correct tests and metadata RPC
Co-authored-by: Diva <divma@protonmail.com>
* order of operations fix in the duration_to_next_slot calculation
* use slot_clock.duration_to_slot() to simplify the duration_to_subscribe calculation
* fix error message
* 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
* 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
* 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>
* 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>
* 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>
* 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>
* Store dht enrs on shutdown
* Load enrs on startup and add tests
* Remove enr_entries from behavior
* Move all dht persisting logic to `NetworkService`
* Move `PersistedDht` from eth2-libp2p to network crate
* Add test to confirm dht persistence
* Add logging
* Remove extra call to beacon_chain persist
* Expose only mutable `add_enr` method from behaviour
* Fix tests
* Fix merge errors
* Add TimeoutRwLock to BeaconChain
* Update network crate
* Update rest api
* Fix beacon chain tests
* Fix rest api tests
* Set test back to !debug_assertions
* Create libp2p instance
* Change logger to stdlog
* test_connection initial commit
* Add gossipsub test
* Delete tests in network crate
* Add test module
* Clean tests
* Remove dependency on discovery
* Working publish between 2 nodes
TODO: Publish should be called just once
* Working 2 peer gossipsub test with additional events
* Cleanup test
* Add rpc test
* Star topology discovery WIP
* build_nodes builds and connects n nodes. Increase nodes in gossipsub test
* Add unsubscribe method and expose reference to gossipsub object for gossipsub tests
* Add gossipsub message forwarding test
* Fix gossipsub forward test
* Test improvements
* Remove discovery tests
* Simplify gossipsub forward test topology
* Add helper functions for topology building
* Clean up tests
* Update naming to new network spec
* Correct ssz encoding of protocol names
* Further additions to network upgrade
* Initial network spec update WIP
* Temp commit
* Builds one side of the streamed RPC responses
* Temporary commit
* Propagates streaming changes up into message handler
* Intermediate network update
* Partial update in upgrading to the new network spec
* Update dependencies, remove redundant deps
* Correct sync manager for block stream handling
* Re-write of RPC handler, improves efficiency and corrects bugs
* Stream termination update
* Completed refactor of rpc handler
* Remove crates
* Correct compile issues associated with test merge
* Build basic tests and testing structure for eth2-libp2p
* Enhance RPC tests and add logging
* Complete RPC testing framework and STATUS test
* Decoding bug fixes, log improvements, stream test
* Clean up RPC handler logging
* Decoder bug fix, empty block stream test
* Add BlocksByRoot RPC test
* Add Goodbye RPC test
* Syncing and stream handling bug fixes and performance improvements
* Applies discv5 bug fixes
* Adds DHT IP filtering for lighthouse - currently disabled
* Adds randomized network propagation as a CLI arg
* Add disconnect functionality
* Adds attestation handling and parent lookup
* Adds RPC error handling for the sync manager
* Allow parent's blocks to be already processed
* Update github workflow
* Adds reviewer suggestions
* Implement freezer database for state vectors
* Improve BeaconState safe accessors
And fix a bug in the compact committees accessor.
* Banish dodgy type bounds back to gRPC
* Clean up
* Switch to exclusive end points in chunked vec
* Cleaning up and start of tests
* Randao fix, more tests
* Fix unsightly hack
* Resolve test FIXMEs
* Config file support
* More clean-ups, migrator beginnings
* Finish migrator, integrate into BeaconChain
* Fixups
* Fix store tests
* Fix BeaconChain tests
* Fix LMD GHOST tests
* Address review comments, delete 'static bounds
* Cargo format
* Address review comments
* Fix LMD ghost tests
* Update to spec v0.9.0
* Update to v0.9.1
* Bump spec tags for v0.9.1
* Formatting, fix CI failures
* Resolve accidental KeyPair merge conflict
* Document new BeaconState functions
* Fix incorrect cache drops in `advance_caches`
* Update fork choice for v0.9.1
* Clean up some FIXMEs
* Fix a few docs/logs
* Update for new builder paradigm, spec changes
* Freezer DB integration into BeaconNode
* Cleaning up
* This works, clean it up
* Cleanups
* Fix and improve store tests
* Refine store test
* Delete unused beacon_chain_builder.rs
* Fix CLI
* Store state at split slot in hot database
* Make fork choice lookup fast again
* Store freezer DB split slot in the database
* Handle potential div by 0 in chunked_vector
* Exclude committee caches from freezer DB
* Remove FIXME about long-running test
* Refactor to cache Eth1Data
* Fix merge conflicts and minor refactorings
* Rename Eth1Cache to Eth1DataCache
* Refactor events subscription
* Add deposits module to interface with BeaconChain deposits
* Remove utils
* Rename to types.rs and add trait constraints to Eth1DataFetcher
* Confirm to trait constraints. Make Web3DataFetcher cloneable
* Make fetcher object member of deposit and eth1_data cache and other fixes
* Fix update_cache function
* Move fetch_eth1_data to impl block
* Fix deposit tests
* Create Eth1 object for interfacing with Beacon chain
* Add `run` function for running update_cache and subscribe_deposit_logs tasks
* Add logging
* Run `cargo fmt` and make tests pass
* Convert sync functions to async
* Add timeouts to web3 functions
* Return futures from cache functions
* Add failed chaining of futures
* Working cache updation
* Clean up tests and `update_cache` function
* Refactor `get_eth1_data` functions to work with future returning functions
* Refactor eth1 `run` function to work with modified `update_cache` api
* Minor changes
* Add distance parameter to `update_cache`
* Fix tests and other minor fixes
* Working integration with cache and deposits
* Add merkle_tree construction, proof generation and verification code
* Add function to construct and fetch Deposits for BeaconNode
* Add error handling
* Import ssz
* Add error handling to eth1 cache and fix minor errors
* Run rustfmt
* Fix minor bug
* Rename Eth1Error and change to Result<T>
* Change deposit fetching mechanism from notification based to poll based
* Add deposits from eth1 chain in a given range every `x` blocks
* Modify `run` function to accommodate changes
* Minor fixes
* Fix formatting
* Initial commit. web3 api working.
* Tidied up lib. Add function for fetching logs.
* Refactor with `Eth1DataFetcher` trait
* Add parsing for deposit contract logs and get_eth1_data function
* Add `get_eth1_votes` function
* Refactor to cache Eth1Data
* Fix merge conflicts and minor refactorings
* Rename Eth1Cache to Eth1DataCache
* Refactor events subscription
* Add deposits module to interface with BeaconChain deposits
* Remove utils
* Rename to types.rs and add trait constraints to Eth1DataFetcher
* Confirm to trait constraints. Make Web3DataFetcher cloneable
* Make fetcher object member of deposit and eth1_data cache and other fixes
* Fix update_cache function
* Move fetch_eth1_data to impl block
* Fix deposit tests
* Create Eth1 object for interfacing with Beacon chain
* Add `run` function for running update_cache and subscribe_deposit_logs tasks
* Add logging
* Run `cargo fmt` and make tests pass
* Convert sync functions to async
* Add timeouts to web3 functions
* Return futures from cache functions
* Add failed chaining of futures
* Working cache updation
* Clean up tests and `update_cache` function
* Refactor `get_eth1_data` functions to work with future returning functions
* Refactor eth1 `run` function to work with modified `update_cache` api
* Minor changes
* Add distance parameter to `update_cache`
* Fix tests and other minor fixes
* Working integration with cache and deposits
* Add merkle_tree construction, proof generation and verification code
* Add function to construct and fetch Deposits for BeaconNode
* Add error handling
* Import ssz
* Add error handling to eth1 cache and fix minor errors
* Run rustfmt
* Fix minor bug
* Rename Eth1Error and change to Result<T>
* Change deposit fetching mechanism from notification based to poll based
* Add deposits from eth1 chain in a given range every `x` blocks
* Modify `run` function to accommodate changes
* Minor fixes
* Fix formatting
* Fix merge issue
* Refactor with `Config` struct. Remote `ContractConfig`
* Rename eth1_chain crate to eth1
* Rename files and read abi file using `fs::read`
* Move eth1 to lib
* Remove unnecessary mutability constraint
* Add `Web3Backend` for returning actual eth1 data
* Refactor `get_eth1_votes` to return a Result
* Delete `eth1_chain` crate
* Return `Result` from `get_deposits`
* Fix range of deposits to return to beacon chain
* Add `get_block_height_by_hash` trait function
* Add naive method for getting `previous_eth1_distance`
* Add eth1 config params to main config
* Add instructions for setting up eth1 testing environment
* Add build script to fetch deposit contract abi
* Contract ABI is part of compiled binary
* Fix minor bugs
* Move docs to lib
* Add timeout to config
* Remove print statements
* Change warn to error
* Fix typos
* Removed prints in test and get timeout value from config
* Fixed error types
* Added logging to web3_fetcher
* Refactor for modified web3 api
* Fix minor stuff
* Add build script
* Tidy, hide eth1 integration tests behind flag
* Add http crate
* Add first stages of eth1_test_rig
* Fix deposits on test rig
* Fix bug with deposit count method
* Add block hash getter to http eth1
* Clean eth1 http crate and tests
* Add script to start ganache
* Adds deposit tree to eth1-http
* Extend deposit tree tests
* Tidy tests in eth1-http
* Add more detail to get block request
* Add block cache to eth1-http
* Rename deposit tree to deposit cache
* Add inital updating to eth1-http
* Tidy updater
* Fix compile bugs in tests
* Adds an Eth1DataCache builder
* Reorg eth1-http files
* Add (failing) tests for eth1 updater
* Rename files, fix bug in eth1-http
* Ensure that ganache timestamps are increasing
* Fix bugs with getting eth1data ancestors
* Improve eth1 testing, fix bugs
* Add truncate method to block cache
* Add pruning to block cache update process
* Add tests for block pruning
* Allow for dropping an expired cache.
* Add more comments
* Add first compiling version of deposit updater
* Add common fn for getting range of required blocks
* Add passing deposit update test
* Improve tests
* Fix block pruning bug
* Add tests for running two updates at once
* Add updater services to eth1
* Add deposit collection to beacon chain
* Add incomplete builder experiments
* Add first working version of beacon chain builder
* Update test harness to new beacon chain type
* Rename builder file, tidy
* Add first working client builder
* Progress further on client builder
* Update becaon node binary to use client builder
* Ensure release tests compile
* Remove old eth1 crate
* Add first pass of new lighthouse binary
* Fix websocket server startup
* Remove old binary code from beacon_node crate
* Add first working beacon node tests
* Add genesis crate, new eth1 cache_2
* Add Serivce to Eth1Cache
* Refactor with general eth1 improvements
* Add passing genesis test
* Tidy, add comments
* Add more comments to eth1 service
* Add further eth1 progress
* Fix some bugs with genesis
* Fix eth1 bugs, make eth1 linking more efficient
* Shift logic in genesis service
* Add more comments to genesis service
* Add gzip, max request values, timeouts to http
* Update testnet parameters to suit goerli testnet
* Add ability to vary Fork, fix custom spec
* Be more explicit about deposit fork version
* Start adding beacon chain eth1 option
* Add more flexibility to prod client
* Further runtime refactoring
* Allow for starting from store
* Add bootstrapping to client config
* Add remote_beacon_node crate
* Update eth1 service for more configurability
* Update eth1 tests to use less runtimes
* Patch issues with tests using too many files
* Move dummy eth1 backend flag
* Ensure all tests pass
* Add ganache-cli to Dockerfile
* Use a special docker hub image for testing
* Appease clippy
* Move validator client into lighthouse binary
* Allow starting with dummy eth1 backend
* Improve logging
* Fix dummy eth1 backend from cli
* Add extra testnet command
* Ensure consistent spec in beacon node
* Update eth1 rig to work on goerli
* Tidy lcli, start adding support for yaml config
* Add incomplete YamlConfig struct
* Remove efforts at YamlConfig
* Add incomplete eth1 voting. Blocked on spec issues
* Add (untested) first pass at eth1 vote algo
* Add tests for winning vote
* Add more tests for eth1 chain
* Add more eth1 voting tests
* Added more eth1 voting testing
* Change test name
* Add more tests to eth1 chain
* Tidy eth1 generics, add more tests
* Improve comments
* Tidy beacon_node tests
* Tidy, rename JsonRpc.. to Caching..
* Tidy voting logic
* Tidy builder docs
* Add comments, tidy eth1
* Add more comments to eth1
* Fix bug with winning_vote
* Add doc comments to the `ClientBuilder`
* Remove commented-out code
* Improve `ClientBuilder` docs
* Add comments to client config
* Add decoding test for `ClientConfig`
* Remove unused `DepositSet` struct
* Tidy `block_cache`
* Remove commented out lines
* Remove unused code in `eth1` crate
* Remove old validator binary `main.rs`
* Tidy, fix tests compile error
* Add initial tests for get_deposits
* Remove dead code in eth1_test_rig
* Update TestingDepositBuilder
* Add testing for getting eth1 deposits
* Fix duplicate rand dep
* Remove dead code
* Remove accidentally-added files
* Fix comment in eth1_genesis_service
* Add .gitignore for eth1_test_rig
* Fix bug in eth1_genesis_service
* Remove dead code from eth2_config
* Fix tabs/spaces in root Cargo.toml
* Tidy eth1 crate
* Allow for re-use of eth1 service after genesis
* Update docs for new CLI
* Change README gif
* Tidy eth1 http module
* Tidy eth1 service
* Tidy environment crate
* Remove unused file
* Tidy, add comments
* Remove commented-out code
* Address majority of Michael's comments
* Address other PR comments
* Add link to issue alongside TODO
Updates lighthouse to the latest networking spec
- Sync re-write (#496)
- Updates to the latest eth2 networking spec (#495)
- Libp2p updates and improvements
* Renamed fork_choice::process_attestation_from_block
* Processing attestation in fork choice
* Retrieving state from store and checking signature
* Looser check on beacon state validity.
* Cleaned up get_attestation_state
* Expanded fork choice api to provide latest validator message.
* Checking if the an attestation contains a latest message
* Correct process_attestation error handling.
* Copy paste error in comment fixed.
* Tidy ancestor iterators
* Getting attestation slot via helper method
* Refactored attestation creation in test utils
* Revert "Refactored attestation creation in test utils"
This reverts commit 4d277fe4239a7194758b18fb5c00dfe0b8231306.
* Integration tests for free attestation processing
* Implicit conflicts resolved.
* formatting
* Do first pass on Grants code
* Add another attestation processing test
* Tidy attestation processing
* Remove old code fragment
* Add non-compiling half finished changes
* Simplify, fix bugs, add tests for chain iters
* Remove attestation processing from op pool
* Fix bug with fork choice, tidy
* Fix overly restrictive check in fork choice.
* Ensure committee cache is build during attn proc
* Ignore unknown blocks at fork choice
* Various minor fixes
* Make fork choice write lock in to read lock
* Remove unused method
* Tidy comments
* Fix attestation prod. target roots change
* Fix compile error in store iters
* Reject any attestation prior to finalization
* Begin metrics refactor
* Move beacon_chain to new metrics structure.
* Make metrics not panic if already defined
* Use global prometheus gather at rest api
* Unify common metric fns into a crate
* Add heavy metering to block processing
* Remove hypen from prometheus metric name
* Add more beacon chain metrics
* Add beacon chain persistence metric
* Prune op pool on finalization
* Add extra prom beacon chain metrics
* Prefix BeaconChain metrics with "beacon_"
* Add more store metrics
* Add basic metrics to libp2p
* Add metrics to HTTP server
* Remove old `http_server` crate
* Update metrics names to be more like standard
* Fix broken beacon chain metrics, add slot clock metrics
* Add lighthouse_metrics gather fn
* Remove http args
* Fix wrong state given to op pool prune
* Make prom metric names more consistent
* Add more metrics, tidy existing metrics
* Fix store block read metrics
* Tidy attestation metrics
* Fix minor PR comments
* Fix minor PR comments
* Remove duplicated attestation finalization check
* Remove awkward `let` statement
* Add first attempts at HTTP bootstrap
* Add beacon_block methods to rest api
* Fix serde for block.body.grafitti
* Allow travis failures on beta (see desc)
There's a non-backward compatible change in `cargo fmt`. Stable and beta
do not agree.
* Add network routes to API
* Fix rustc warnings
* Add best_slot method
* Add --bootstrap arg to beacon node
* Get bootstrapper working for ENR address
* Store intermediate states during block processing
* Allow bootstrapper to scrape libp2p address
* Update bootstrapper libp2p address finding
* Add comments
* Tidy API to be more consistent with recent decisions
* Address some review comments
* Make BeaconChainTypes Send + Sync + 'static
* Add `/network/listen_port` API endpoint
* Abandon starting the node if libp2p doesn't start
* Update bootstrapper for API changes
* Remove unnecessary trait bounds
* Renamed fork_choice::process_attestation_from_block
* Processing attestation in fork choice
* Retrieving state from store and checking signature
* Looser check on beacon state validity.
* Cleaned up get_attestation_state
* Expanded fork choice api to provide latest validator message.
* Checking if the an attestation contains a latest message
* Correct process_attestation error handling.
* Copy paste error in comment fixed.
* Tidy ancestor iterators
* Getting attestation slot via helper method
* Refactored attestation creation in test utils
* Revert "Refactored attestation creation in test utils"
This reverts commit 4d277fe4239a7194758b18fb5c00dfe0b8231306.
* Integration tests for free attestation processing
* Implicit conflicts resolved.
* formatting
* Do first pass on Grants code
* Add another attestation processing test
* Tidy attestation processing
* Remove old code fragment
* Add non-compiling half finished changes
* Simplify, fix bugs, add tests for chain iters
* Remove attestation processing from op pool
* Fix bug with fork choice, tidy
* Fix overly restrictive check in fork choice.
* Ensure committee cache is build during attn proc
* Ignore unknown blocks at fork choice
* Various minor fixes
* Make fork choice write lock in to read lock
* Remove unused method
* Tidy comments
* Fix attestation prod. target roots change
* Fix compile error in store iters
* Reject any attestation prior to finalization
* Fix minor PR comments
* Remove duplicated attestation finalization check
* Remove awkward `let` statement
* Rename `hashing` crate to `eth2_hashing`
* Add license, desc to eth2_hashing Cargo.toml
* Remove merkle root from eth2 hashing
* Remove old benches folder (zombied from old branch)
* Add docs to eth2_hashing
* Prepare tree_hash for publishing on crates.io
* Update deps to use crates.io instead of paths
* Update all crates to pull ssz from crates.io
* Remove cached_tree_hash, add patches to manifest
* Fix compile error in benches
* Remove unused code
* Fix fake_crypto compile error
