Commit Graph

169 Commits

Author SHA1 Message Date
tersec 61c5ac32d8
automated consensus spec ref URL update to v1.3.0-alpha.1 (#4354) 2022-11-24 19:07:02 +00:00
Jacek Sieka cc1464a935
readd bearssl/cacert 2022-11-20 08:20:23 +01:00
Etan Kissling 93714756d7
update `sync_queue` docs w.r.t. joker's problem (#4317)
Explicitly mention in-line documentation within `sync_queue` relating to
older specification version to make rationale clearer.
2022-11-11 15:36:02 +01:00
Etan Kissling 94ff73af34
remove unused `SyncQueue.getFullMap` function (#4319)
The `getFullMap` function is unused and can be removed (verified with
`{.deprecated.}`).
2022-11-11 12:36:56 +00:00
Etan Kissling 2eb56f6e1b
rename `PeerScoreXyzBlocks` -> `PeerScoreXyzValues` (#4318)
The various `PeerScore` constants are used for both beacon blocks and
LC objects, and will likely also find use for EIP4844 blob sidecars.
Renaming them to use more generically applicable names not referring
to blocks explicitly aymore.
2022-11-11 11:34:28 +00:00
Etan Kissling 94b3df25f8
remove unused `sync_queue` types (#4316)
`SyncManagerError` and `sync_queue.BeaconBlocksRes` are unused and can
be removed for cleanup (verified with `{.deprecated.}`).
2022-11-11 10:41:30 +00:00
Etan Kissling 48994f67d3
rename `BlockError` -> `VerifierError` (#4310)
We currently use `BlockError` for both beacon blocks and LC objects.
In light of EIP4844, we will likely also use it for blob sidecars.
To avoid confusion, renaming it to a more generic `VerifierError`,
and update its documentation to be more generic.

To avoid long lines as a followup, also renaming the `block_processor`'s
`BlockProcessingCompleted.completed`->`ProcessingStatus.completed` and
`BlockProcessingCompleted.notCompleted`->`ProcessingStatus.notCompleted`
2022-11-10 17:40:27 +00:00
tersec 909c095e64
initial automated v1.2.0 -> v1.3.0-alpha.0 consensus spec URL update (#4296) 2022-11-08 02:37:28 +00:00
Jacek Sieka fc724b21e8
Tighten libp2p request quotas (#4254)
To further tighten Nimbus against spam, this PR introduces a global
quota for block requests (shared between peers) as well as a general
per-peer request limit that applies to all libp2p requests.

* apply request quota before decoding message
* for high-bandwidth requests (blocks), apply a shared global quota
which helps manage bandwidth for high-peer setups
* add metrics
2022-11-02 10:46:53 +00:00
Jacek Sieka 63a3f2b1ad
Tighten chunk decoding limits (#4264)
* cap maximum number of chunks to download from peer (fixes #1620)
* drop support for requesting blocks via v1 / phase0 protocol
* tighten bounds checking of fixed-size messages
2022-10-27 18:51:43 +02:00
KonradStaniec f141ae57d3
Decrease min time between queries in lc (#4225) 2022-10-07 10:03:55 +02:00
Etan Kissling 7202acddff
update for latest LC REST proposal (#4213)
Implements the latest proposal for providing LC data via REST, as of
https://github.com/ethereum/beacon-APIs/pull/247 with a v0 suffix.

Requests:
- `/eth/v0/beacon/light_client/bootstrap/{block_root}`
- `/eth/v0/beacon/light_client/updates?start_period={start_period}&count={count}`
- `/eth/v0/beacon/light_client/finality_update`
- `/eth/v0/beacon/light_client/optimistic_update`

HTTP Server-Sent Events (SSE):
- `light_client_finality_update_v0`
- `light_client_optimistic_update_v0`
2022-10-04 13:38:09 +02:00
tersec 3c03ba86c1
update consensus spec ref URLs to v1.2.0 (#4164) 2022-09-23 07:56:06 +00:00
Eugene Kabanov 174292b7e4
Sync gaps fix (#4090) 2022-09-19 12:37:42 +03:00
Etan Kissling 3ba016d75f
consistent peer scoring for missing non-finalized parent (#3381)
When the sync queue processes results for a blocks by range request,
and the requested range contained some slots that are already finalized,
`BlockError.MissingParent` currently leads to `PeerScoreBadBlocks` even
when the error occurs on a non-finalized slot in the requested range.
This patch changes the scoring in that case to `PeerScoreMissingBlocks`
for consistency with range requests solely covering non-finalized slots,
and, likewise, rewinds the sync queue to the next `rewindSlot`.
2022-09-16 21:45:53 +02:00
tersec 80f44f4491
update consensus layer spec ref URLs to v1.2.0-rc.3 (#4117) 2022-09-13 17:30:11 +00:00
tersec 8be964a152
update consensus layer spec ref URLs to v1.2.0-rc.3 (#4109) 2022-09-10 17:16:38 +00:00
Etan Kissling 8936212f93
descore on empty response for range w known block (#4050)
The sync protocol does not distinguish between:
- All requested slots are empty
- Peer does not have data available about requested range

Therefore, we treat EOF for `beacon_blocks_by_range` and for
`beacon_blocks_by_range` as valid responses, as if the entire epoch
really contained no single block for any slot. Once a followup response
provides new blocks, we detect that some blocks were missing and rewind.

During backfill, we also request the known-to-exist `backfill.slot`,
so we can actually detect whether an epoch really does not have blocks
or whether a response is incomplete (`PeerScoreNoBlocks`).
2022-09-03 23:12:58 +02:00
Etan Kissling 9180f09641
reduce LC optsync latency (#4002)
The optimistic sync spec was updated since the LC based optsync module
was introduced. It is no longer necessary to wait for the justified
checkpoint to have execution enabled; instead, any block is okay to be
optimistically imported to the EL client, as long as its parent block
has execution enabled. Complex syncing logic has been removed, and the
LC optsync module will now follow gossip directly, reducing the latency
when using this module. Note that because this is now based on gossip
instead of using sync manager / request manager, that individual blocks
may be missed. However, EL clients should recover from this by fetching
missing blocks themselves.
2022-08-25 03:53:59 +00:00
tersec c65eaca1bf
update spec ref URLs (#4005) 2022-08-20 16:03:32 +00:00
Etan Kissling 5c8e58ea23
update LC spec references for v1.2.0-rc.2 (#3982)
Updates light client spec references for latest spec (no more `vFuture`)
2022-08-17 19:47:06 +00:00
tersec 8274d5373b
update spec ref URLs (#3979) 2022-08-17 11:33:19 +00:00
Miran dfd4afc9f2
compatibility with Nim 1.4+ (#3888) 2022-07-29 10:53:42 +00:00
Etan Kissling 3ec7982293
update light client protocol version (#3550)
* Use final `v1` version for light client protocols
* Unhide LC data collection options
* Default enable LC data serving
* rm unneeded import
* Connect to EL on startup
* Add docs for LC based EL sync
2022-07-29 11:45:39 +03:00
Etan Kissling a6deacd878
allow driving EL with LC (#3865)
Adds the `--web3-url` launch argument to `nimbus_light_client` to enable
driving the EL with the optimistic head obtained from LC sync protocol.
This will keep issuing `newPayload` / `forkChoiceUpdated` requests for
new blocks, marking them as optimistic. `ZERO_HASH` is reported as the
finalized block for now.
2022-07-14 04:07:40 +00:00
tersec ae05ba9a48
reduce received invalid sync block logging to notice; decimal TTD logging (#3839) 2022-07-06 13:34:12 +03:00
tersec 1221bb66e8
optimistic sync (#3793)
* optimistic sync

* flag that initially loaded blocks from database might need execution block root filled in

* return optimistic status in REST calls

* refactor blockslot pruning

* ensure beacon_blocks_by_{root,range} do not provide optimistic blocks

* handle forkchoice head being pre-merge with block being postmerge

* re-enable blocking head updates on validator duties

* fix is_optimistic_candidate_block per spec; don't crash with nil future

* fix is_optimistic_candidate_block per spec; don't crash with nil future

* mark blocks sans execution payloads valid during head update
2022-07-04 23:35:33 +03:00
Etan Kissling 2e98c7722f
encapsulate LC data variables into single structure (#3777)
Combines the LC data configuration options (serve / importMode), the
callbacks (finality / optimistic LC update) as well as the cache storing
light client data, into a new `LightClientDataStore` structure.
Also moves the structure into a light client specific file.
2022-06-24 16:57:50 +02:00
Jacek Sieka 347a485b5b
bearssl: split abi (#3755) 2022-06-21 10:29:16 +02:00
Etan Kissling 61ee0611bb
adopt LC REST API with v0 suffix (without proofs) (#3775)
* adopt LC REST API with v0 suffix (without proofs)

Adopts the light client data REST API used by Lodestar as defined in
https://github.com/ethereum/beacon-APIs/pull/181 with a v0 suffix.

Requests:
- `/eth/v0/beacon/light_client/bootstrap/{block_root}`
- `/eth/v0/beacon/light_client/updates?start_period={start_period}&count={count}`
- `/eth/v0/beacon/light_client/finality_update`
- `/eth/v0/beacon/light_client/optimistic_update`

HTTP Server-Sent Events (SSE):
- `light_client_finality_update_v0`
- `light_client_optimistic_update_v0`

More work is needed to adopt the proofs endpoint, it is not included.

* initialize event queues

* register event topics
2022-06-19 08:57:52 +03:00
Etan Kissling 21b69d5901
avoid small gaps in optimistic block stream (#3749)
Ensures that all intermediate blocks are reported if a small gap is
encountered when downloading optimistic blocks. Gaps may occur when
a block is missed and still downloading, or when EL processing is slow.
If the gap exceeds 1 epoch, optimistic block stream jumps to latest.
2022-06-16 15:24:08 +00:00
Eugene Kabanov 1b6651dfc3
Fix /eth/v1/node/syncing (#3720)
* Fix REST `/eth/v1/node/syncing` call to return values even if SyncManager is not running.

* Use syncManager.inProgress as is_syncing indicator.
2022-06-14 22:26:23 +02:00
Etan Kissling 52ba4f7999
rename light client config parameters (#3740)
For consistency with other options, use a common prefix for light client
data configuration options.

* `--serve-light-client-data` --> `--light-client-data-serve`
* `--import-light-client-data` --> `--light-client-data-import-mode`

No deprecation of the old identifiers as they were only sparingly used
and all usage can be easily updated without interferance.
2022-06-14 12:03:39 +03:00
tersec 8d421f3d91
keep fcU consistent with actual DAG (#3748) 2022-06-14 08:28:30 +00:00
Etan Kissling 7b04a94d43
fix #3674 (Sync progress >100% on checkpoint sync) (#3736)
Corrects an off-by-1 in the reported sync percentage computation.
New logic is based on `SyncQueue.total` and `SyncQueue.progress`
with `pivot` instead of `sq.startSlot`.
2022-06-13 20:00:36 +03:00
Etan Kissling 15967c4076
keep track of latest blocks for optimistic sync (#3715)
When launched with `--light-client-enable` the latest blocks are fetched
and optimistic candidate blocks are passed to a callback (log for now).
This helps accelerate syncing in the future (optimistic sync).
2022-06-10 14:16:37 +00:00
Jacek Sieka 7ec1521c52
use unsigned literals (#3717)
in the hopes of avoiding potential for conversion bugs on i386
2022-06-08 11:09:33 +00:00
Jacek Sieka b35584632b
sync: remove `step` from sync client implementation (#3678)
* sync: remove `step` from sync client implementation

Deprecated in the spec:
https://github.com/ethereum/consensus-specs/pull/2856 - future PR:s will
deprecate server support as well.
2022-06-06 16:56:59 +03:00
tersec ea113fc420
disallow non-(genesis, far-future) equal transition epochs (#3691) 2022-06-03 09:37:03 +00:00
Eugene Kabanov 50f9596108
Eliminate rpc_types.nim usage. (#3692) 2022-06-02 09:39:08 +00:00
Etan Kissling 01efa93cf6
add light client (standalone) (#3653)
Introduces a new library for syncing using libp2p based light client
sync protocol, and adds a new `nimbus_light_client` executable that uses
this library for syncing. The new executable emits log messages when
new beacon block headers are received, and is integrated into testing.
2022-05-31 12:45:37 +02:00
Etan Kissling c808f17a37
update to latest light client libp2p protocol (#3623)
Incorporates the latest changes to the light client sync protocol based
on Devconnect AMS feedback. Note that this breaks compatibility with the
previous prototype, due to changes to data structures and endpoints.
See https://github.com/ethereum/consensus-specs/pull/2802
2022-05-23 14:02:54 +02:00
Etan Kissling 8cfb630aa9
never request blocks before `safeSlot` in sync (#3512)
Follows up on https://github.com/status-im/nimbus-eth2/pull/3461 which
ensured that repeated `beaconBlocksByRange` requests get shrinked to
account for potential out-of-band advancements to `safeSlot`, with
similar logic for the initial request.
2022-05-10 13:46:14 +02:00
Jacek Sieka 138c40161d
avoid unnecessary recompression in block protocol (#3598)
Blocks can be sent straight from compressed data sources

Co-authored-by: Etan Kissling <etan@status.im>
2022-05-05 11:00:02 +00:00
tersec 7bb40d28ae
ensure MAX_CHUNK_SIZE usage consistent in sync_protocol (#3615) 2022-05-05 09:17:14 +00:00
tersec 4a372410a4
use MAX_CHUNK_SIZE_BELLATRIX for signed Bellatrix blocks (#3613)
* use MAX_CHUNK_SIZE_BELLATRIX for signed Bellatrix blocks

* Update beacon_chain/networking/eth2_network.nim

Co-authored-by: Etan Kissling <etan@status.im>

* localPassC to localPassc

* check against maxChunkSize rather than constant

Co-authored-by: Etan Kissling <etan@status.im>
2022-05-05 05:45:35 +00:00
Eugene Kabanov 5592c7c674
NoMonitor and removed clock check for SyncManager. (#3420)
* Add `NoMonitor` flag to stop SyncManager from monitoring sync situation.

* Remove `toleranceValue` and `PeerScoreHeadTooNew`.

Co-authored-by: Etan Kissling <etan@status.im>
2022-04-14 15:17:44 +02:00
Jacek Sieka f70ff38b53
enable `styleCheck:usages` (#3573)
Some upstream repos still need fixes, but this gets us close enough that
style hints can be enabled by default.

In general, "canonical" spellings are preferred even if they violate
nep-1 - this applies in particular to spec-related stuff like
`genesis_validators_root` which appears throughout the codebase.
2022-04-08 16:22:49 +00:00
Jacek Sieka 4207b127f9
era: load blocks and states (#3394)
* era: load blocks and states

Era files contain finalized history and can be thought of as an
alternative source for block and state data that allows clients to avoid
syncing this information from the P2P network - the P2P network is then
used to "top up" the client with the most recent data. They can be
freely shared in the community via whatever means (http, torrent, etc)
and serve as a permanent cold store of consensus data (and, after the
merge, execution data) for history buffs and bean counters alike.

This PR gently introduces support for loading blocks and states in two
cases: block requests from rest/p2p and frontfilling when doing
checkpoint sync.

The era files are used as a secondary source if the information is not
found in the database - compared to the database, there are a few key
differences:

* the database stores the block indexed by block root while the era file
indexes by slot - the former is used only in rest, while the latter is
used both by p2p and rest.
* when loading blocks from era files, the root is no longer trivially
available - if it is needed, it must either be computed (slow) or cached
(messy) - the good news is that for p2p requests, it is not needed
* in era files, "framed" snappy encoding is used while in the database
we store unframed snappy - for p2p2 requests, the latter requires
recompression while the former could avoid it
* front-filling is the process of using era files to replace backfilling
- in theory this front-filling could happen from any block and
front-fills with gaps could also be entertained, but our backfilling
algorithm cannot take advantage of this because there's no (simple) way
to tell it to "skip" a range.
* front-filling, as implemented, is a bit slow (10s to load mainnet): we
load the full BeaconState for every era to grab the roots of the blocks
- it would be better to partially load the state - as such, it would
also be good to be able to partially decompress snappy blobs
* lookups from REST via root are served by first looking up a block
summary in the database, then using the slot to load the block data from
the era file - however, there needs to be an option to create the
summary table from era files to fully support historical queries

To test this, `ncli_db` has an era file exporter: the files it creates
should be placed in an `era` folder next to `db` in the data directory.
What's interesting in particular about this setup is that `db` remains
as the source of truth for security purposes - it stores the latest
synced head root which in turn determines where a node "starts" its
consensus participation - the era directory however can be freely shared
between nodes / people without any (significant) security implications,
assuming the era files are consistent / not broken.

There's lots of future improvements to be had:

* we can drop the in-memory `BlockRef` index almost entirely - at this
point, resident memory usage of Nimbus should drop to a cool 500-600 mb
* we could serve era files via REST trivially: this would drop backfill
times to whatever time it takes to download the files - unlike the
current implementation that downloads block by block, downloading an era
at a time almost entirely cuts out request overhead
* we can "reasonably" recreate detailed state history from almost any
point in time, turning an O(slot) process into O(1) effectively - we'll
still need caches and indices to do this with sufficient efficiency for
the rest api, but at least it cuts the whole process down to minutes
instead of hours, for arbitrary points in time

* CI: ignore failures with Nim-1.6 (temporary)

* test fixes

Co-authored-by: Ștefan Talpalaru <stefantalpalaru@yahoo.com>
2022-03-23 09:58:17 +01:00
Etan Kissling b2b7b0bd56
serve libp2p protocol for light client sync (#3341)
This extends the `--serve-light-client-data` launch option to serve
locally collected light client data via libp2p.
Backfill of historic best `LightClientUpdate` is not yet implemented.
See https://github.com/ethereum/consensus-specs/pull/2802
2022-03-22 21:23:36 +01:00
Etan Kissling 6d1d31dd01
avoid re-requesting finalized blocks during sync (#3461)
When a `beaconBlocksByRange` response advances the `safeSlot`, but later
has errors, the sync queue keeps repeating that same request until it is
fulfilled without errors. Data up through `safeSlot` is considered to be
immutable, i.e., finalized, so re-requesting that data is not useful.
By advancing the sync progress in that scenario, those redundant query
portions can be avoided. Note, the finalized block _itself_ is always
requested, even in the initial request. This behaviour is kept same.
2022-03-15 18:56:56 +01:00
Jacek Sieka a3bd01b58d
move dependent root computations to `BeaconState` / `EpochRef` (#3478)
* fewer deps on `BlockRef` traversal in anticipation of pruning
* allows identifying EpochRef:s by their shuffling as a first step of
* tighten error handling around missing blocks

using the zero hash for signalling "missing block" is fragile and easy
to miss - with checkpoint sync now, and pruning in the future, missing
blocks become "normal".
2022-03-15 09:24:55 +01:00
Etan Kissling 3ffab01b07
Refactor and optimize sync logs. (#3451)
* Refactor and optimize logs.

* Introduce shortLog(SyncRequest).

* Address review comment.

* make sync queue logs more consistent

Adds a few minor logging improvements:
- Fixes a typo (`was happened` -> `has happened`)
- Avoids passing `reset_slot` argument to log statement multiple times
- Uses same `rewind_to_slot` label when logging in both sync directions
- Consistent rewind point logging

Co-authored-by: cheatfate <eugene.kabanov@status.im>
2022-03-03 09:05:33 +01:00
Etan Kissling 6849536742 fix `firstSlot` computation for backfill sync
When initializing backfill sync, the implementation intends to start at
the first unknown slot (`1` before tail). However, an incorrect variable
is passed, and backfill sync actually starts at the tail slot instead.
This patch corrects this by passing the intended variable. The problem
was introduced with the original backfill implementation at #3263.
2022-02-14 18:53:38 +02:00
Etan Kissling d1f97e209a
remove unused `sleepTime` from `SyncManager` (#3384)
The `SyncManager` has a leftover optional `sleepTime` parameter in
its constructor that used to configure the sync loop polling rate.
This parameter was replaced with a constant in #1602 and is no longer
functional. This patch removes the `sleepTime` leftovers.
2022-02-14 12:05:01 +01:00
Etan Kissling a28900c348
fix slot number display during sync (#3383)
#3304 introduced a regression to the sync status string displayed in the
status bar; during the main forward sync, the current slot is no longer
reported and always displays as `0`. This patch corrects the computation
to accurately report the current slot once more.
2022-02-14 12:04:04 +01:00
tersec 873a8ec1e6
use isZeroMemory for Eth2Digest comparisons (#3386)
* use isZeroMemory for Eth2Digest comparisons

* use Eth2Digest.isZero abstraction
2022-02-14 05:26:19 +00:00
Etan Kissling 15fc7534cf
remove unused `maxStatusAge` from `SyncManager` (#3382)
The `SyncManager` has a leftover optional `maxStatusAge` parameter in
its constructor that used to configure the libp2p `Status` polling rate.
This parameter was replaced with a constant in #1827 and is no longer
functional. This patch removes the `maxStatusAge` leftovers.
2022-02-13 16:17:13 +01:00
Jacek Sieka 1760f4d7a7
move wallet/deposit commands to separate files (#3372)
These commands have little to do with the "normal" beacon node operation
- ergo, they deserve to live in their own module.

* clean up imports/exports
2022-02-11 21:40:49 +01:00
Jacek Sieka c7abc97545
harden and speed up block sync (#3358)
* harden and speed up block sync

The `GetBlockBy*` server implementation currently reads SSZ bytes from
database, deserializes them into a Nim object then serializes them right
back to SSZ - here, we eliminate the deser/ser steps and send the bytes
straight to the network. Unfortunately, the snappy recoding must still
be done because of differences in framing.

Also, the quota system makes one giant request for quota right before
sending all blocks - this means that a 1024 block request will be
"paused" for a long time, then all blocks will be sent at once causing a
spike in database reads which potentially will see the reading client
time out before any block is sent.

Finally, on the reading side we make several copies of blocks as they
travel through various queues - this was not noticeable before but
becomes a problem in two cases: bellatrix blocks are up to 10mb (instead
of .. 30-40kb) and when backfilling, we process a lot more of them a lot
faster.

* fix status comparisons for nodes syncing from genesis (#3327 was a bit
too hard)
* don't hit database at all for post-altair slots in GetBlock v1
requests
2022-02-07 19:20:10 +02:00
Jacek Sieka 84b6ad871d harden status message handling
Additional sanity checking of the status message exchanged during a
fresh connection:

* check that head and finalized make sense, slot-wise
* verify that finalized root lies on the canonical chain, when possible
* re-check these things for every status message during sync
2022-01-27 18:46:47 +02:00
Jacek Sieka f70aceef37
Harden handling of unviable forks (#3312)
* Harden handling of unviable forks

In our current handling of unviable forks, we allow peers to send us
blocks that come from a different fork - this is not necessarily an
error as it can happen naturally, but it does open up the client to a
case where the same unviable fork keeps getting requested - rather than
allowing this to happen, we'll now give these peers a small negative
score - if it keeps happening, we'll disconnect them.

* keep track of unviable forks in quarantine, to avoid filling it with
known junk
* collect peer scores in single module
* descore peers when they send unviable blocks during sync
* don't give score for duplicate blocks
* increase quarantine size to a level that allows finality to happen
under optimal conditions - this helps avoid downloading the same blocks
over and over in case of an unviable fork
* increase initial score for new peers to make room for one more failure
before disconnection
* log and score invalid/unviable blocks in requestmanager too
* avoid ChainDAG dependency in quarantine
* reject gossip blocks with unviable parent
* continue processing unviable sync blocks in order to build unviable
dag

* docs

* Update beacon_chain/consensus_object_pools/block_pools_types.nim

* add unviable queue test
2022-01-26 13:20:08 +01:00
tersec 351c2fd48a
rename mergeData to bellatrixData and mergeFork to bellatrixFork (#3315) 2022-01-24 16:23:13 +00:00
Jacek Sieka 61342c2449
limit by-root requests to non-finalized blocks (#3293)
* limit by-root requests to non-finalized blocks

Presently, we keep a mapping from block root to `BlockRef` in memory -
this has simplified reasoning about the dag, but is not sustainable with
the chain growing.

We can distinguish between two cases where by-root access is useful:

* unfinalized blocks - this is where the beacon chain is operating
generally, by validating incoming data as interesting for future fork
choice decisions - bounded by the length of the unfinalized period
* finalized blocks - historical access in the REST API etc - no bounds,
really

In this PR, we limit the by-root block index to the first use case:
finalized chain data can more efficiently be addressed by slot number.

Future work includes:

* limiting the `BlockRef` horizon in general - each instance is 40
bytes+overhead which adds up - this needs further refactoring to deal
with the tail vs state problem
* persisting the finalized slot-to-hash index - this one also keeps
growing unbounded (albeit slowly)

Anyway, this PR easily shaves ~128mb of memory usage at the time of
writing.

* No longer honor `BeaconBlocksByRoot` requests outside of the
non-finalized period - previously, Nimbus would generously return any
block through this libp2p request - per the spec, finalized blocks
should be fetched via `BeaconBlocksByRange` instead.
* return `Opt[BlockRef]` instead of `nil` when blocks can't be found -
this becomes a lot more common now and thus deserves more attention
* `dag.blocks` -> `dag.forkBlocks` - this index only carries unfinalized
blocks from now - `finalizedBlocks` covers the other `BlockRef`
instances
* in backfill, verify that the last backfilled block leads back to
genesis, or panic
* add backfill timings to log
* fix missing check that `BlockRef` block can be fetched with
`getForkedBlock` reliably
* shortcut doppelganger check when feature is not enabled
* in REST/JSON-RPC, fetch blocks without involving `BlockRef`

* fix dag.blocks ref
2022-01-21 13:33:16 +02:00
Eugene Kabanov 0ea6dfa517
Fix current slot value and finishing progress for backfilling. (#3304) 2022-01-21 10:35:54 +01:00
Jacek Sieka 570379d3d9
Backfiller (#3263)
Backfilling is the process of downloading historical blocks via P2P that
are required to fulfill `GetBlocksByRange` duties - this happens during
both trusted node and finalized checkpoint syncs.

In particular, backfilling happens after syncing to head, such that
attestation work can start as soon as possible.

* Fix SyncQueue initialization procedure.
Remove usage of `awaitne`.
Add cancellation support.
Remove unneeded `sleepAsync()` if peer's head is older than needed.
Add `direction` field to all logs.
Fix syncmanager wedge issue.
Add proper resource cleaning procedure on backward sync finish.

Co-authored-by: cheatfate <eugene.kabanov@status.im>
2022-01-20 08:25:45 +01:00
tersec 9c0c9c98ce
complete switch to beacon_chain/specs/datatypes/bellatrix (#3295) 2022-01-18 13:36:52 +00:00
Jacek Sieka 836f6984bb
move `state_transition` to `Result` (#3284)
* better error messages in api
* avoid `BlockData` copies when replaying blocks
2022-01-17 12:19:58 +01:00
Jacek Sieka 68247f81b3
Trusted node sync (#3209)
* Trusted node sync

Trusted node sync, aka checkpoint sync, allows syncing tyhe chain from a
trusted node instead of relying on a full sync from genesis.

Features include:

* sync from any slot, including the latest finalized slot
* backfill blocks either from the REST api (default) or p2p (#3263)

Future improvements:

* top up blocks between head in database and some other node - this
makes for an efficient backup tool
* recreate historical state to enable historical queries

* fixes

* load genesis from network metadata
* check checkpoint block root against state
* fix invalid block root in rest json decoding
* odds and ends

* retry looking for epoch-boundary checkpoint blocks
2022-01-17 10:27:08 +01:00
Jacek Sieka d57c2dc4e5
use tail block as sync pivot (#3276)
When syncing, we show how much of the sync has completed - with
checkpoint sync, the syncing does not always go from slot 0 to head, but
rather can start in the middle.

To show a consistent `%` between restarts, we introduce the concept of a
pivot point, such that if I sync 10% of the chain, then restart the
client, it picks up at 10% (instead of counting from 0).

What it looks like:
```
INF ... sync="01d12h41m (15.96%) 13.5158slots/s (QDDQDDQQDP:339018)" ...
```
2022-01-13 10:37:53 +01:00
tersec 14aab2c13f
update 10 modules from using merge to bellatrix (#3272) 2022-01-12 15:50:30 +01:00
Jacek Sieka 805e85e1ff
time: spring cleaning (#3262)
Time in the beacon chain is expressed relative to the genesis time -
this PR creates a `beacon_time` module that collects helpers and
utilities for dealing the time units - the new module does not deal with
actual wall time (that's remains in `beacon_clock`).

Collecting the time related stuff in one place makes it easier to find,
avoids some circular imports and allows more easily identifying the code
actually needs wall time to operate.

* move genesis-time-related functionality into `spec/beacon_time`
* avoid using `chronos.Duration` for time differences - it does not
support negative values (such as when something happens earlier than it
should)
* saturate conversions between `FAR_FUTURE_XXX`, so as to avoid
overflows
* fix delay reporting in validator client so it uses the expected
deadline of the slot, not "closest wall slot"
* simplify looping over the slots of an epoch
* `compute_start_slot_at_epoch` -> `start_slot`
* `compute_epoch_at_slot` -> `epoch`

A follow-up PR will (likely) introduce saturating arithmetic for the
time units - this is merely code moves, renames and fixing of small
bugs.
2022-01-11 11:01:54 +01:00
Jacek Sieka 6f7e0e3393
REST cleanups (#3255)
* REST cleanups

* reject out-of-range committee requests
* print all hex values as lower-case
* allow requesting state information by head state root
* turn `DomainType` into array (follow spec)
* `uint_to_bytesXX` -> `uint_to_bytes` (follow spec)
* fix wrong dependent root in `/eth/v1/validator/duties/proposer/`
* update documentation - `--subscribe-all-subnets` is no longer needed
when using the REST interface with validator clients
* more fixes
* common helpers for dependent block
* remove test rules obsoleted by more strict epoch tests
* fix trailing commas

* Update docs/the_nimbus_book/src/rest-api.md
* Update docs/the_nimbus_book/src/rest-api.md

Co-authored-by: sacha <sacha@status.im>
2022-01-08 22:06:34 +02:00
tersec 5878d34117
rename forkDigests.merge to forkDigests.bellatrix (#3245) 2022-01-05 14:24:15 +00:00
tersec b81c06edab
rename Beacon{Block,State}Fork.Merge to Bellatrix; update copyright years (#3240) 2022-01-04 09:45:38 +00:00
tersec 6ef3834f4a
fix type-conversions-to-self, unexport from nimbus_beacon_node, and rm unused vars/procs (#3211) 2021-12-20 12:21:17 +01:00
Jacek Sieka 118840d241
SyncManager cleanups for backfill support (#3189)
* SyncManager cleanups for backfill support

Cleanups, fixes and simplifications, in anticipation of backfill support
for the `SyncManager`:

* reformat sync progress indicator to show time left and % done more
prominently:
  * old: `sync="sPssPsssss:2:2.4229:00h57m (2706898)"`
  * new: `sync="14d12h31m (0.52%) 1.1378slots/s (wQQQQQDDQQ:1287520)"`
* reset average speed when going out of sync
* pass all block errors to sync manager, including duplicate/unviable
* penalize peers for reporting a head block that is outside of our
expected wall clock time (they're likely on a different network or
trying to disrupt sync)
* remove `SyncFailureKind` (unused)
* remove `inRange` (unused)
* add `Q` for sync queue requests that are in the `SyncQueue` but not
yet in the `BlockProcessor` queue
* update last slot in `SyncQueue` after getting peer status
* fix race condition between `wakeupWaiters` and `resetWait`, where
workers would not be correctly reset if block verification returned a
completed future without event loop
* log syncmanager direction

* Fix ordering issue.
Some of the requests size of which are not equal to `chunkSize` could be processed in wrong order which could lead to sync process freezes.

Co-authored-by: cheatfate <eugene.kabanov@status.im>
2021-12-16 15:57:16 +01:00
Jacek Sieka 03005f48e1
Backfill support for ChainDAG (#3171)
In the ChainDAG, 3 block pointers are kept: genesis, tail and head. This
PR adds one more block pointer: the backfill block which represents the
block that has been backfilled so far.

When doing a checkpoint sync, a random block is given as starting point
- this is the tail block, and we require that the tail block has a
corresponding state.

When backfilling, we end up with blocks without corresponding states,
hence we cannot use `tail` as a backfill pointer - there is no state.

Nonetheless, we need to keep track of where we are in the backfill
process between restarts, such that we can answer GetBeaconBlocksByRange
requests.

This PR adds the basic support for backfill handling - it needs to be
integrated with backfill sync, and the REST API needs to be adjusted to
take advantage of the new backfilled blocks when responding to certain
requests.

Future work will also enable moving the tail in either direction:
* pruning means moving the tail forward in time and removing states
* backwards means recreating past states from genesis, such that
intermediate states are recreated step by step all the way to the tail -
at that point, tail, genesis and backfill will match up.
* backfilling is done when backfill != genesis - later, this will be the
WSS checkpoint instead
2021-12-13 14:36:06 +01:00
Eugene Kabanov b05734f610
Backward sync support for SyncManager. (#3131)
* Unbundle SyncQueue from sync_manager.nim.
Unbundle Peer scores constants to peer_scores.nim.
Add Forward/Backward enum.

* Further improvements and tests.

* Adopt getRewindPoint() and fix MissingParent handler.

* Remove unused procedures.
Refactor `result` usage.
Fix resetWait().

* Add all the tests and fix the issue with rewind point.

* Fix get() issue.

* Fix flaky tests.

* test fixes

Co-authored-by: Jacek Sieka <jacek@status.im>
2021-12-08 22:15:29 +01:00
Jacek Sieka 1a8b7469e3
move quarantine outside of chaindag (#3124)
* move quarantine outside of chaindag

The quarantine has been part of the ChainDAG for the longest time, but
this design has a few issues:

* the function in which blocks are verified and added to the dag becomes
reentrant and therefore difficult to reason about - we're currently
using a stateful flag to work around it
* quarantined blocks bypass the processing queue leading to a processing
stampede
* the quarantine flow is unsuitable for orphaned attestations - these
should also should be quarantined eventually

Instead of processing the quarantine inside ChainDAG, this PR moves
re-queueing to `block_processor` which already is responsible for
dealing with follow-up work when a block is added to the dag

This sets the stage for keeping attestations in the quarantine as well.

Also:

* make `BlockError` `{.pure.}`
* avoid use of `ValidationResult` in block clearance (that's for gossip)
2021-12-06 10:49:01 +01:00
tersec e6921f808f
cleanups, partly from kintsugi branch (#3161)
* cleanups, partly from kintsugi branch

* re-export shortLog(EthBlock) and preserve exception messages in batchVerify and processBatch
2021-12-05 17:32:41 +00:00
Jacek Sieka 233d756518
Logging and startup improvements (#3038)
* Logging and startup improvements

Color support for released binaries!

* startup scripts no longer log to file by default - this only affects
source builds - released binaries don't support file logging
* add --log-stdout option to control logging to stdout (colors, json)
* detect tty:s vs redirected logs and log accordingly
* add option to disable log colors at runtime
* simplify several "common" logs, showing the most important information
earlier and more clearly
* remove line numbers / file information / tid - these take up space and
are of little use to end users
  * still enabled in debug builds and tools
* remove `testnet_servers_image` compile-time option
* server images, released binaries and compile-from-source now offer
the same behaviour and features
* fixes https://github.com/status-im/nimbus-eth2/issues/2326
* fixes https://github.com/status-im/nimbus-eth2/issues/1794
* remove instanteneous block speed from sync message, keeping only
average

before:

```
INF 2021-10-28 16:45:59.000+02:00 Slot start                                 topics="beacnde" tid=386429 file=nimbus_beacon_node.nim:884 lastSlot=2384027 wallSlot=2384028 delay=461us84ns peers=0 head=75a10ee5:3348 headEpoch=104 finalized=cd6804ba:3264 finalizedEpoch=102 sync="wwwwwwwwww:0:0.0000:0.0000:00h00m (3348)"
INF 2021-10-28 16:45:59.046+02:00 Slot end                                   topics="beacnde" tid=386429 file=nimbus_beacon_node.nim:821 slot=2384028 nextSlot=2384029 head=75a10ee5:3348 headEpoch=104 finalizedHead=cd6804ba:3264 finalizedEpoch=102 nextAttestationSlot=-1 nextProposalSlot=-1 nextActionWait=n/a
```

after:

```
INF 2021-10-28 22:43:23.033+02:00 Slot start                                 topics="beacnde" slot=2385815 epoch=74556 sync="DDPDDPUDDD:10:5.2258:01h19m (2361088)" peers=37 head=eacd2dae:2361096 finalized=73782:a4751487 delay=33ms687us715ns
INF 2021-10-28 22:43:23.291+02:00 Slot end                                   topics="beacnde" slot=2385815 nextActionWait=n/a nextAttestationSlot=-1 nextProposalSlot=-1 head=eacd2dae:2361096
```

* fix comment

* documentation updates

* mention `--log-file` may be deprecated in the future
* update various docs
2021-11-02 18:06:36 +01:00
nbc-bump-bot[bot] 29b26f3f6b
nim-libp2p auto bump (#2840)
* auto-bump nim-libp2p

* Remove peer info for other peers

Not definitive, just to test the libp2p's unstable branch

* finish up Remove peer info for other peers

* getKey -> getPublicKey

* bump libp2p

* libp2p bump

Co-authored-by: = <Menduist@users.noreply.github.com>
Co-authored-by: Tanguy <tanguy@status.im>
2021-10-21 13:01:29 +02:00
Jacek Sieka df3fc9525f
import cleanup (#2997)
* import cleanup

...and remove some unused types

* add random imports

* more imports
2021-10-19 16:09:26 +02:00
Jacek Sieka c40cc6cec1 clean up fork enum and field names
* single naming strategy
* simplify some fork code
* simplify forked block production
2021-10-19 11:06:38 +03:00
Jacek Sieka 4f7a8cf79d
register vc duties with subnet tracker (#2949)
* register vc duties with subnet tracker
* fix activation logging during startup
* cache slot signature to avoid duplicate signature work
* schedule aggregation duties one slot at a time to avoid CPU spike at
each epoch
* lower aggregation subnet pre-subscription time to 4 slots (lowers
bandwidth and CPU usage)
* update stability subnets in ENR on startup
* log gossip state
* perform gossip subscriptions just before the next slot starts
* document stuff
* add random include
* don't overwrite subscription state when not subscribed
* log target gossip state
* updating gossip status once is enough
* add test
* remove syncQueueLen - this one is not updated at the end of the sync
and may cause gossip to disconnect itself completely - use a simple head
distance instead
* fix gossip disconnection - if in hysteresis, node.gossipState will be
set to disabled even though we don't disable topic subscriptions
* fix extra duty registration call
2021-10-18 11:11:44 +02:00
zah 554a31d20d
Implement the merge networking req/resp changes (#2922)
The other part of this change was already implemented in the `sendResponseChunk` function.
2021-09-29 16:44:43 +00:00
tersec 2b2846b468
implement forked merge state/block support (#2890)
* implement forked state/block support

* merge support for containsOrphan; import cleanup; 80-column lines

* add merge block header operations and slot sanity fixture

* add epoch state transition tests; implement is_valid_gas_limit(), is_merge_block(), is_execution_enabled(), and compute_timestamp_at_slot()

* implement process_execution_payload() and add merge deposit operations tests

* add merge block sanity tests

* add merge case to syncCommitteeParticipants

* v1.1.0-beta.5 updates

* reduce getTestStates-based memory usage; don't try to REST-serialize ExecutionPayload transactions without underlying support

* add execution payload tests; switch var to let in tests/official/
2021-09-27 14:22:58 +00:00
tersec 9c0d9b546a
successfull -> successful (#2842) 2021-09-01 18:08:24 +02:00
Jacek Sieka 01596c45dd
cleanups and fixes (#2827)
* import cleanup
* fix json-rpc exception handlers
* avoid unnecessary presto client import
* introduce ForkedBeaconBlock, some altair logging
* url fixes
2021-08-27 11:00:06 +02:00
Jacek Sieka ba06f13942
cleanups (#2809)
* cleanups

* use ForkedTrustedSignedBeaconBlock.ionit where appropriate
* move `is_aggregator` to `spec/`
* use `errReject` in a few more places
* update enr fork id when time is auspicious
* use network broadcast functions

* Return Ignore for aggregate signature validation timeouts

...consistently between aggregates and attestations.

* clean up some more reject/ignore rules
* shorten texts a bit

* errReject->checkedReject, use err helpers throughout

* get rid of quarantine in exitpool as well
2021-08-24 21:49:51 +02:00
tersec 092d9350de
eth2.0-specs -> consensus-specs repo rename (#2801) 2021-08-20 23:37:45 +00:00
tersec 317b6de4e6
send attestations and exit messages on fork-appropriate topic (#2773)
* send attestations and exit messages on fork-appropriate topic

* document why use wall clock over attestation slot

* centralize some fork-topic-picking-logic in eth2_network

* pick up new test in summary

* allow specified GetTimeFn for testing purposes

* add GenesisTime and use it in eth2_network

* replace GetTimeFn and GenesisTime with GetBeaconTimeFn
2021-08-19 10:45:31 +00:00
Jacek Sieka a7a65bce42
disentangle eth2 types from the ssz library (#2785)
* reorganize ssz dependencies

This PR continues the work in
https://github.com/status-im/nimbus-eth2/pull/2646,
https://github.com/status-im/nimbus-eth2/pull/2779 as well as past
issues with serialization and type, to disentangle SSZ from eth2 and at
the same time simplify imports and exports with a structured approach.

The principal idea here is that when a library wants to introduce SSZ
support, they do so via 3 files:

* `ssz_codecs` which imports and reexports `codecs` - this covers the
basic byte conversions and ensures no overloads get lost
* `xxx_merkleization` imports and exports `merkleization` to specialize
and get access to `hash_tree_root` and friends
* `xxx_ssz_serialization` imports and exports `ssz_serialization` to
specialize ssz for a specific library

Those that need to interact with SSZ always import the `xxx_` versions
of the modules and never `ssz` itself so as to keep imports simple and
safe.

This is similar to how the REST / JSON-RPC serializers are structured in
that someone wanting to serialize spec types to REST-JSON will import
`eth2_rest_serialization` and nothing else.

* split up ssz into a core library that is independendent of eth2 types
* rename `bytes_reader` to `codec` to highlight that it contains coding
and decoding of bytes and native ssz types
* remove tricky List init overload that causes compile issues
* get rid of top-level ssz import
* reenable merkleization tests
* move some "standard" json serializers to spec
* remove `ValidatorIndex` serialization for now
* remove test_ssz_merkleization
* add tests for over/underlong byte sequences
* fix broken seq[byte] test - seq[byte] is not an SSZ type

There are a few things this PR doesn't solve:

* like #2646 this PR is weak on how to handle root and other
dontSerialize fields that "sometimes" should be computed - the same
problem appears in REST / JSON-RPC etc

* Fix a build problem on macOS

* Another way to fix the macOS builds

Co-authored-by: Zahary Karadjov <zahary@gmail.com>
2021-08-18 20:57:58 +02:00
tersec 6e46445da2
switch result = foo to expression return; unexport rest of logtrace symbols (#2788) 2021-08-17 09:51:39 +00:00
Jacek Sieka 7a622e8505
rework spec imports (#2779)
The spec imports are a mess to work with, so this branch cleans them up
a bit to ensure that we avoid generic sandwitches and that importing
stuff generally becomes easier.

* reexport crypto/digest/presets because these are part of the public
symbol set of the rest of the spec types
* don't export `merge` types from `base` - this causes circular deps
* fix circular deps in `ssz/spec_types` - this is the first step in
disentangling ssz from spec
* be explicit about phase0 vs altair - longer term, `altair` will become
the "natural" type set, then merge and so on, so no point in giving
`phase0` special preferential treatment
2021-08-12 13:08:20 +00:00
Jacek Sieka 9697b73e71
forkedbeaconstate_helpers -> forks (#2772)
Simpler module name for stuff that covers forks

* check that runtime config matches database state
* also include some assorted altair cleanups
* use "standard" genesis fork in local testnet to work around missing
runtime config support
2021-08-10 22:46:35 +02:00
tersec 2afe2802b6
altair topic switching (#2767)
* altair topic switching

* remove validate{Committee,Validator}IndexOr unused within branch
2021-08-09 12:54:45 +00:00
Jacek Sieka 3d7bee8502
REST API client, JSON-RPC cleanups (#2756)
This refactoring puts the JSON-RPC and REST APIs on more equal footing
by renaming and moving things around, creating a separation between
client and server, and documenting what they are - the aim is to have a
simple-to-use base to start from when developing API clients, as well as
make it easier to navigate the code when looking for the legacy JSON-RPC
interface vs the new REST API.

* move REST client, serialization and supporting types to spec/eth2_apis
* REST stuff now starts with `rest_`, JSON-RPC stuff starts with `rpc_`,
more or less
* simplify imports such that there's a simple module to import for both
server and client
* map REST type and proc names to yaml spec more closely - in
particular, reuse operation and type names in `rest_types` to make
comparisons against spec more easy
* cleaner separation between client and server modules - modules common
between server and client such as `rest_types` and serialization move to
the spec folder - this allows the client to be built with less knowledge
about server internals
2021-08-03 17:17:11 +02:00
Jacek Sieka 2d6a661ac6
Syncv2 (#2723)
* bump libp2p

* altair sync v2

Use V2 sync requests after the altair fork has happened, according to
the wall clock

* Fix the behavior of the v1 req/resp calls after Altair

Co-authored-by: Zahary Karadjov <zahary@gmail.com>
2021-07-15 21:01:07 +02:00