We know the aggregate publickey of a fully participating sync committee.
Because participation is typically very high (>95%), it is faster to
start from that aggregate publickey and subtract the individual keys of
non-participants, than summing up all the participating pubkeys.
To obtain the correct `transactions_root` and `withdrawals_root`,
it is necessary to process execution block header. Light client updates
don't contain the correct MPT roots.
Using `create` with objects containing managed objects is broken:
https://github.com/nim-lang/Nim/issues/22341
Switch to a safer pattern based on `new+GC_ref`/`GC_unref` instead.
* async batch verification
When batch verification is done, the main thread is blocked reducing
concurrency.
With this PR, the new thread signalling primitive in chronos is used to
offload the full batch verification process to a separate thread
allowing the main threads to continue async operations while the other
threads verify signatures.
Similar to previous behavior, the number of ongoing batch verifications
is capped to prevent runaway resource usage.
In addition to the asynchronous processing, 3 addition changes help
drive throughput:
* A loop is used for batch accumulation: this prevents a stampede of
small batches in eager mode where both the eager and the scheduled batch
runner would pick batches off the queue, prematurely picking "fresh"
batches off the queue
* An additional small wait is introduced for small batches - this helps
create slightly larger batches which make better used of the increased
concurrency
* Up to 2 batches are scheduled to the threadpool during high pressure,
reducing startup latency for the threads
Together, these changes increase attestation verification throughput
under load up to 30%.
* fixup
* Update submodules
* fix blst build issues (and a PIC warning)
* bump
---------
Co-authored-by: Zahary Karadjov <zahary@gmail.com>
This PR removes a few hundred thousand temporary seq allocations during
state transition - in particular, the flag seq was allocated per
validator while committees are computed per attestation.
Split up the `ShufflingRef` acceleration logic into generically usable
parts and attester shuffling specific parts. The generic parts could be
used to accelerate other purposes, e.g., REST `/states/xxx/randao` API.
* speed up state/block loading
When loading blocks and states from db/era, we currently redundantly
check their CRC32 - for a state, this costs 50ms of loading time
presently (110mb uncompressed size) on a decent laptop.
* remove `maxDecompressedDbRecordSize` - not actually used on recent
data since we store the framed format - also, we're in luck: we blew
past the limit quite some time ago
* fix obsolete exception-based error checking
* avoid `zeroMem` when reading from era store
see https://github.com/status-im/nim-snappy/pull/22 for benchmarks
* bump snappy
* Add new REST endpoints to monitor REST server connections and new chronos metrics.
* Bump head versions of chronos and presto.
* Bump chronos with regression fix.
* Remove outdated tests which was supposed to test pipeline mode.
* Disable pipeline mode in resttest.
* Update copyright year.
* Upgrade test_signing_node to start use AsyncProcess instead of std library's osproc.
Bump chronos to check graceful shutdown.
* Update AllTests.
* Bump chronos.
Split up the `ShufflingRef` acceleration logic into generically usable
parts and attester shuffling specific parts. The generic parts could be
used to accelerate other purposes, e.g., REST `/states/xxx/randao` API.
When producing a local block and `runProposalForkchoiceUpdated` was
missed, `getPayloadFromSingleEL` adds additional ~500ms of latency.
Quick fix to avoid missing blocks to that.
We currently call `onSlotEnd` whenever all in-BN validator duties are
completed. VC validator duties are not awaited. When `onSlotEnd` is
processed close to the slot start, a VC may therefore miss duties.
Adding a delay before `onSlotEnd` improves this situation.
The logic can be optimized further if `ActionTracker` would track
`knownValidators` from REST separately from in-process ones.
To enable additional use cases, e.g., `/states/###/randao` beacon API,
`ShufflingRef` acceleration logic needs to be able to operate on parts
of the DAG that do not have `BlockRef`. Changing `commonAncestor` to
act on `BlockId` instead of `BlockRef` is a step toward that and also
simplifies the logic some more.
* fall back to non-fcu fork choice on epoch boundaries
* Future[bool]
* fix
* Update beacon_chain/consensus_object_pools/consensus_manager.nim
Co-authored-by: Etan Kissling <etan@status.im>
* make things consistent with Opt[void] return
---------
Co-authored-by: Etan Kissling <etan@status.im>
Post-merge blocks contain all information to directly obtain RANDAO
without having to load any additional info. Take advantage of that to
further accelerate `ShufflingRef` computation. Note that it is still
necessary to verify that `blck` / `state` share a sufficiently recent
ancestor for the purpose of computing attester shufflings.
- new: 243.71s, 239.67s, 237.32s, 238.36s, 239.57s
- old: 251.33s, 234.29s, 249.28s, 237.03s, 236.78s
Current RANDAO recovery logic is quite complex as it optimizes for the
minimum amount of database reads. Loading blocks isn't the bottleneck
though, so rather make the implementation more concise by avoiding the
complex strategy planning step. Note that this also prepares for an even
faster implementation for post-merge blocks in the future that extracts
RANDAO from `ExecutionPayload` directly if available, so even in cases
where efficiency is slightly lower, only historical data is affected.
`time nim c -r tests/test_blockchain_dag` (cached binary):
- new: 145.45s, 133.59s, 144.65s, 127.69s, 136.14s
- old: 149.15s, 150.84s, 135.77s, 137.49s, 133.89s
* Perform block pre-check before validating execution
When syncing, blocks have not been gossip-validated and are therefore
prone to trivial faults like being known-unviable, duplicate or missing
their parent.
In addition, the duplicate-block check in BlockProcessor was not
considering the quarantine flow and would therefore cause
recently-quarantined blocks to be silenty dropped when their parent
appears delaying the sync end-game and thus causing longer startup
resync time.
This PR verifies trivial conditions before performing execution
validation thus avoiding duplicates and missing parents alike.
It also ensures that the fast-sync EL mode is used for finalized blocks
even if the EL is timing out / slow to respond - this allows the CL to
complete its sync faster and switch to "normal" lock-step at the head of
the chain more quickly, thus also allowing the EL to access the latest
consensensus information earlier.
* oops
* remove unused constant
When the requestmanager is busy fetching blocks, the queue might get
filled with multiple entries of the same root - since there is no
deduplication, requests containing the same root multiple times will be
sent out.
Also, because the items sit in the queue for a long time potentially,
the request might be stale by the time that the manager is ready with
the previous request.
This PR removes the queue and directly fetches the blocks to download
from the quarantine which solves both problems (the quarantine already
de-duplicates and is clean of stale information).
Removing the queue for blobs is left for a future PR.
Co-authored-by: tersec <tersec@users.noreply.github.com>
* early exit `commonAncestor` when comparing with `finalizedHead`
As all `BlockRef` lead to `finalizedHead` (`parent == nil`),
can shortcut in that situation and immediately return `finalizedHead`
if passed as one of the arguments.
* typo in comment
* add test from #5152
Co-authored-by: tersec <tersec@users.noreply.github.com>
* add note about test complexity
* regenerate test summary
---------
Co-authored-by: tersec <tersec@users.noreply.github.com>
With `v1.6.14` there is compilation issue in `trusted_node_sync` where
a type is not inferred automatically anymore for a `nil` instance.
Fix it so we can bump the compiler.
See https://github.com/status-im/nimbus-build-system/pull/63
* Make VC able to understand any type of `/eth/v1/config/spec` response without any changes in source code.
Update compatibility checking.
Now VC is able to obtain any constant from `spec` call.
* Remove RestSpecVC declaration.
* Initial commit.
* Add algorithm in comment.
Remove delays.
Fix logging statement issues.
Change update from epoch to slot.
* Obtain timestamp earlier.
* Add processing delays into algorithm.
* Fix time offset logging to produce integers instead of strings.
* Address review comments.
* Fix copyright year.
Fix updateStatus().
* Remove fields from Slot start log statement.
Fix issues when BN do not support Nimbus Extensions.
Rename metric name and type change.
* Add beacon role to disable time offset check manually.
These tables can't be deleted from (read-only) and would be too slow to
delete from anyway due to the inefficient storage format in use.
* slow down startup clearing too
* remove unused del function
These tables can't be deleted from (read-only) and would be too slow to
delete from anyway due to the inefficient storage format in use.
* slow down startup clearing too
* remove unused del function
The helper function to compute delay until next light client sync task
can be useful from more general purpose contexts. Move to helpers, and
change it to return `Duration` instead of `BeaconTime` for flexibility.
- When syncing `LightClientUpdatesByRange`, and peer replies with
fewer periods than requested, no need to delay next request.
- When `FinalityUpdate` / `OptimisticUpdate` sync fails,
no need to retry immediately.
The `UpdatesByRange` API takes `startPeriod / count`, but is internally
called by `Slice`. Move the logic that converts from the `Slice` to the
caller to reduce complexity inside the used `doRequest` function.
We have several modules that import `nim-eth` for the sole purpose of
its `keys.newRng` function. This function is meanwhile a simple wrapper
around `nim-bearssl`'s `HmacDrbgContext.new()`, so the import doesn't
really serve a use anymore. Replace `keys.newRng` with the direct call
to reduce `nim-eth` imports.
* require sync committee supermajority in CI
To better catch problems with sync committee messages in CI, extend
local testnet simulation to also verify that each block is signed
by a supermajority of the sync committee.
Requires #5083 and #5084
* lint
`produceSyncAggregate` is called in new slot when block is produced,
while the other functions in `sync_committee_msg_pool` are called in
previous slot. So, need to subtract 1 slot when producing sync aggregate
to accept the signatures using the old digest during fork transition.
Override default Json parsing for keystore case objects to avoid
`CaseTransition` logic to be emitted. When parsing the discriminator,
reinitialize the entire object instead of implicitly changing it,
to avoid UB and also possible oversights when extending the object.
See https://github.com/status-im/nim-serialization/pull/59
Before assigning to `genesisData` or returning `cfg`, have to check that
metadata is not `incompatible` to avoid `ProveField` warning.
The way how we use it was already correct (`incompatible` unreachable).
Use `case` syntax to silence the warning, and add comments referring to
the existing checks that make `incompatible` unreachable.
* ensure sync duties for next epoch are registered in time
For attestations, VC queries duties for current and next epoch.
For sync messages, VC queries for current and next period (if soon).
This means that for sync messages we don't actually have the duties for
next epoch in all situations, leading to situation where VC may miss
sync duties in the final slot of an epoch when using. As duties remain
same within a sync committee period, simply copy them over to next epoch
to avoid this situation without adding network latency.
* Update beacon_chain/validator_client/duties_service.nim
Co-authored-by: Jacek Sieka <jacek@status.im>
---------
Co-authored-by: Jacek Sieka <jacek@status.im>
VC currently misses sync committee duties for first slot of most epochs
because the 1 slot offset is not taken into account. Duties for the next
slot must be used during any given current slot. We use the correct slot
for processing the duty, but do not use the correct slot for fetching.
`nim-serialization` is tagged with `{.raises:[SerializationError].}` so
it is no longer sufficient to catch `SszError` in some situations.
`SszError` inherits from `SerializationError`, so broadening the caught
exception types can be done now, to enable bumping `nim-serialization`.
https://github.com/status-im/nimbus-eth2/pull/5043#issuecomment-1584227993#5061 is also needed to bump `nim-serialization`.
Cleanup for `ProveField` warnings in `keystore` module.
Note that `ProveField` is disabled by default in makefile, but sometimes
these pop up when doing a regular `nim c`, and cleaning these may allow
enabling the warning in some future.
* split file loading from parsing in helpers
In `readSszForkedHashedBeaconState` and `readRuntimeConfig`, split the
part that loads the file from the part that parses the file. The parsing
portion can be reused with that, e.g., when loading from the network.
* add missing export marker
* Refactor api.nim to provide more informative failure reasons.
Distinct between unexpected data and unexpected code.
Deprecate Option[T] usage.
* Fix 400 for produceBlindedBlock().
Get proper string conversion for strategy.
* Fix SSZ encoded versions of ProduceBlockResponseV2, ProduceBlockResponseV2 can be received and decoded.
Fix done() warnings.
Bump presto.
* Fix compilation error with new presto.
Use TcpNoDelay option for Web3Signer.
* Fix produceBlockV2() should provide SSZ responses too.
* Address block encoding issue.
* Fix signing test.
* Bump presto.
* Address review comments.
Use separate functions per format when parsing LC data from REST.
This allows to process events from the eventstream more directly,
as they are always JSON not SSZ. And also makes the code cleaner.
Assigning to fields of `var` case objects emits `ProveField` warnings.
We disable them in `make` based builds but they may pop up when building
manually with `nim c`. Suppress them for the `keyGen` function, as we
assign to `result.value` separately from `result.ok` to avoid copying.
* `ProveField` cleanups in `forks`
Some more cleanup for `ProveField` warnings in `forks` module.
Note that `ProveField` is disabled by default in makefile, but sometimes
these pop up when doing a regular `nim c`, and cleaning these may allow
enabling the warning in some future.
* use syntax that works if passed to multiple args of call
When using trusted node sync with `--trusted-block-root`, the remote
server is only trusted for data availability, not for correctness.
As a downloaded genesis state cannot be validated for correctness,
require it to be passed via the network metadata `genesis.ssz` file
for `--trusted-block-root` mode. Network metadata is considered trusted
as it is provided by the user and not by the remote server.
Further adds a check for consistent `genesis_time` when using `StateId`
based trusted node sync. This is just a sanity check to avoid spreading
blatantly incorrect data, similar to existing `genesis_validators_root`
checks.
* Initial commit with both methods enabled: `poll` and `event`.
* Address review comments.
* Address review comments.
Fix copyright years.
* After bump fixes.
Since #3976, CORS functionality is broken. Fix it to work again:
- Use `--rest-allowed-origin` instead of `--keymanager-allowed-origin`
to specify CORS `Access-Control-Allow-Origin` header for beacon-APIs.
- Actually pass CORS config to `nim-presto` once more.
* also pack attestations where LMD vote is orphaned
When `attestation.data.beacon_block_root` gets orphaned, attestations
with a good `attestation.data.target.root` may still be valuable.
The LMD GHOST vote is not relevant for attestation rewards.
Switch to use the FFG vote (`attestation.data.target.root`) instead,
gossip validation ensures it is an ancestor of `beacon_block_root`.
* lint
* allow payload builder client to be function of validator/proposer
* fileExists has side effects on Windows and only Windows
* another not-always-func
* handle one of the `ProveField` warnings
When assigning between `ForkyHashedBeaconState`, suppress `ProveField`
warning, as `tgt.kind == src.kind` was already checked, but compiler
doesn't understand that (as we only `case tgt.kind`).
* Update beacon_chain/spec/forks.nim
* Update beacon_chain/spec/forks.nim
* use correct exception in `parseCmdArg(enr.Record)`
`parseCmdArg` is expected to raise `ValueError` but for `enr.Record` we
currently raise `ConfigurationError`. Change to `ValueError` instead.
* lint
* Refactor api.nim to provide more informative failure reasons.
Distinct between unexpected data and unexpected code.
Deprecate Option[T] usage.
* Fix generated reason to not include opt[t].
* Fix 400 for produceBlindedBlock().
Get proper string conversion for strategy.
* Bump copyright years.
Since #4960, the EL connection status can no longer transition from
`NeverTested` to `Working`. Fix that, and also consider `NeverTested`
connections as online for the purpose of the `el_offline` REST response.
* Clarify addOrphan error/logging
addOrphan returned a bool to indicate success. Change this to a Result
so that different errors can be distinguished.
* Update beacon_chain/consensus_object_pools/block_quarantine.nim
Co-authored-by: tersec <tersec@users.noreply.github.com>
* Update beacon_chain/gossip_processing/gossip_validation.nim
---------
Co-authored-by: tersec <tersec@users.noreply.github.com>
* replace optimisticRoots table with field in BlockRef
* copyright year
* mark finalized blocks as verified on load
* Update beacon_chain/consensus_object_pools/block_dag.nim
Co-authored-by: Etan Kissling <etan@status.im>
* expand non-optimistic block checking to all pre-merge blocks; refactor markBlockVerified to use BlockRef rather than block root and remove superfluous caller in newPayload path replaced by addResolvedHeadBlock BlockRef construction
* don't treat finalized block specially; VALID status is sticky
---------
Co-authored-by: Etan Kissling <etan@status.im>
When doing sync for blocks older than
MIN_EPOCHS_FOR_BLOB_SIDECARS_REQUESTS, we skip the blobs by range
request, but we then pass en empty blob sequence to
validation, which then fails.
To fix this: Use an Option[Blobsidecars] to allow expressing the
distinction between "empty blob sequence" and "blobs unavailable". Use
the latter for "old" blocks, and don't attempt to run blob validation.
`SyncCommitteeMsgPool` grouped messages by their `beacon_block_root`.
This is problematic around sync committee period boundaries and forks.
Around sync committee period boundaries, members from both the current
and next sync committee may sign the same `beacon_block_root`; mixing
the signatures from both committees together is a mistake. Likewise,
around fork transitions, the `signing_root` changes, so those messages
also need to be segregated.
The validator beacon APIs `getAttesterDuties`, `getProposerDuties`, and
`getSyncCommitteeDuties`, have reported the `execution_optimistic`
state for the current head block. This can lead to a race if duties are
requested around the slot start, if a new head block is currently being
processed by the EL, during which the BN head may be briefly optimistic.
`execution_optimistic` is documented in beacon APIs as:
> True if the response references an unverified execution payload.
> Optimistic information may be invalidated at a later time.
> If the field is not present, assume the False value.
As the duty endpoints reference the shuffling dependent root instead of
the currently selected head block, `execution_optimistic` is now fetched
based on that shuffling dependent block root. As this dependent block is
in the past it doesn't usually become optimistic when adding new blocks.
Note that the endpoints requested 4/8 seconds into the slot that perform
the actual duties instead of just querying for duty schedule, still
report `execution_optimistic` based on the BN head block.
When fetching historical `getSyncCommitteeDuties` for the very first
sync committee period, the case must be handled where Altair may not
have been scheduled on a sync committee period boundary.
henridf
Jacek Sieka
Etan Kissling
tersec
Philippe Schommers
Eugene Kabanov
Zahary Karadjov
Tanguy
Jacob Shufro
jangko