Commit Graph

75 Commits

Author SHA1 Message Date
Etan Kissling 9d5643240b
only request blobs if a sync response actually provided blocks (#6121)
During sync, we can skip the `blobSidecarsByRange` request when there
are no blocks with `kzg_commitments` in the blocks data. Avoids running
into throttling from peers during long periods of non-finality.
2024-03-22 03:27:02 +01:00
Etan Kissling 2a45bb3c7c
add error information when sync requests fail (#6119)
During sync it may be interesting to know why requests are failing.
Extend debug logging accordingly.
2024-03-22 00:26:50 +00:00
tersec 642774e596
unrevert rest of https://github.com/status-im/nimbus-eth2/pull/5765 (#5867)
* unrevert rest of https://github.com/status-im/nimbus-eth2/pull/5765

* rm stray e2store docs changes

* reduce diff

* fix indent

---------

Co-authored-by: Jacek Sieka <jacek@status.im>
2024-02-09 09:35:41 +01:00
tersec 225ef5e69a
partially revert https://github.com/status-im/nimbus-eth2/pull/5765 (#5833) 2024-01-28 23:45:52 +01:00
Jacek Sieka 3ff9b69bf1
simplify eth2_network error handling (#5765)
This PR gets rid of a bunch of redundant exception handling through
async raises guarantees.

More can be removed once libp2p gets properly annotated.
2024-01-19 21:05:52 +00:00
Etan Kissling 62ee92a094
bolster `BlobSidecar` syncing on incomplete responses (#5766)
Avoid marking blocks invalid when corresponding `blobSidecarsByRange`
returns an incomplete / incorrect response while syncing. The block
itself may still be valid in that scenario.
2024-01-18 15:45:10 +01:00
Jacek Sieka b98f46c04d
Avoid global in p2p macro (fixes #4578) (#5719)
* Avoid global in p2p macro (fixes #4578)

* copy p2p macro to this repo and start de-crufting it
* make protocol registration dynamic, removing light client hacks et al
* split out light client protocol into its own file

* cleanups

* Option -> Opt
* remove more cruft

* further split beacon_sync

this allows the light client to respond to peer metadata messages
without exposing the block sync protocol

* better protocol init

* "constant" protocol index

* avoid casts

* copyright

* move some discovery code to discovery

* avoid extraneous data copy when sending chunks

* remove redundant forkdigest field

* document how to connect to a specific peer
2024-01-13 11:54:24 +02:00
Jacek Sieka 62cbdeefc5
verify `genesis_time` more strictly (fixes #1667) (#5694)
Bogus values lead to crashes down the line when timers overflow
2024-01-06 15:26:56 +01:00
Etan Kissling 7554ca2583
retry sync request when receiving invalid response range (#5615)
Inform `sync_queue` about inconsistent responses to sync requests
so that the affected requests are retried with a different peer.
2023-11-22 09:01:51 +01:00
Etan Kissling 101b723f52
make `MIN_EPOCHS_FOR_BLOB_SIDECARS_REQUESTS` configurable (#5582)
* make `MIN_EPOCHS_FOR_BLOB_SIDECARS_REQUESTS` configurable

Gnosis uses custom `MIN_EPOCHS_FOR_BLOB_SIDECARS_REQUESTS` to account
for the faster slot timing, so that blobs still remain available for
roughly the same amount of real time.

Also extend REST config endpoint with full config form `v1.4.0-beta.4`,
and extend compatibility checks when loading configs to reduce warnings.
2023-11-09 23:41:17 +03:00
Etan Kissling d8a7f0df81
update Deneb for blob sidecar inclusion proofs (#5565)
`BlobSidecar` is no longer signed, instead use Merkle proof to link
blobs with block.

- https://github.com/ethereum/consensus-specs/pull/3531

Associated beacon-API / builder-specs still TBD; minimal changes done
to compile in similar style to previous spec, but not standardized yet.

- https://github.com/ethereum/beacon-APIs/pull/369
- https://github.com/ethereum/builder-specs/pull/90
2023-11-06 07:48:43 +01:00
Eugene Kabanov caaad4777c
BN+LC+SN: Fix cancellation deprecate warnings. (#5455)
* Fix deprecation cancel() warnings in SN, BN, LC.

* Fix missing import.
2023-09-22 11:06:27 +00:00
tersec 6cd8f3ba55
Update constants/presets for consistency with consensus-specs v1.4.0 (#5284) 2023-08-12 03:10:12 +00:00
Jacek Sieka fc833d40f6
bump chronos (#5032)
* ratelimiter crash fix
* implicit returns now available!
2023-06-05 18:52:16 +00:00
henridf 23adf15e5a
Blob handling sync fixes (#4888)
* Fix groupBlobs

* Fix getShortMap

* Fix blob handling in sync

* lint

* Add some blob-related logging
2023-05-06 08:58:50 +00:00
henridf 8f2f40f0af
Remove blockBlobsVerifier (#4829)
Having a separate 'blockBlobsVerifier' function for post-Deneb blocks
is no longer of any benefit. This commit removes it.
2023-04-18 02:12:57 +02:00
Jacek Sieka 7df75d77fa
move spec constants to spec (#4825)
* move spec constants to spec

quite funny, this removes >_1000_ transitive imports when building
`nimbus_validator_client`.

`genDepend`:

```sh
[arnetheduck@praeceps beacon_chain]$ diff -u
nimbus_validator_client.dot.pre nimbus_validator_client.dot | wc
   1167    3507  103822
```

* imports

* better constants

* oops

* too many blobs

* reorder spec constants in fork order

* cleanup
2023-04-17 17:18:54 +00:00
tersec c31fbc3977
remove most std/options imports (#4778) 2023-03-31 20:46:47 +00:00
Etan Kissling 969c6f73ae
misc local `EIP4844` > `Deneb` bumps (#4717)
* misc local `EIP4844` > `Deneb` bumps

* fix
2023-03-11 00:28:19 +00:00
henridf 90640cce05
Update sync to use post-decoupling RPC (#4701)
* Update sync to use post-decoupling RPCs

blob_sidecars_by_range returns a flat list of sidecars, which must
then be grouped per-slot.

* Add test for groupBlobs

* createBlobs: convert proc to func
2023-03-07 20:19:17 +00:00
zah 067ba13c52
Capella metadata for Sepolia (#4615)
Other changes:

Renamed the `EIP_4844_FORK_*` config constants to `DENEB_FORK_*` as
this matches the latest spec and it's already used in the official
Sepolia config.
2023-02-15 14:44:09 +00:00
henridf 59e41dc65d
EIP4844 sync (#4581)
* EIP4844 Sync

* Pass eip4844 fork epoch rather than cfg to syncmanager

* Fix sync

* Update test

* map->mapIt
2023-02-11 20:48:35 +00:00
Jacek Sieka f3ddea6c86
Skip execution payload verification for finalized blocks (#4591)
While syncing the finalized portion of the chain, the execution client
cannot efficiently sync and most of the time returns `SYNCING` - in this
PR, we use CL-verified optmistic sync as long as the block is claimed to
be finalized, only occasionally updating the EL with progress.

Although a peer might lie about what is finalized and what isn't,
eventually we'll call the execution client - thus, all a dishonest
client can do is delay execution verification slightly. Gossip blocks in
particular are never assumed to be finalized.
2023-02-06 08:22:08 +01:00
tersec aacc8d702d
remove Nim 1.2-compatible `push raise`s and update copyright notice years (#4528) 2023-01-20 14:14:37 +00:00
Jacek Sieka 75c7195bfd
Backfill only up to MIN_EPOCHS_FOR_BLOCK_REQUESTS blocks (#4421)
When backfilling, we only need to download blocks that are newer than
MIN_EPOCHS_FOR_BLOCK_REQUESTS - the rest cannot reliably be fetched from
the network and does not have to be provided to others.

This change affects only trusted-node-synced clients - genesis sync
continues to work as before (because it needs to construct a state by
building it from genesis).

Those wishing to complete a backfill should do so with era files
instead.
2022-12-23 08:42:55 +01:00
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
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
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
Miran dfd4afc9f2
compatibility with Nim 1.4+ (#3888) 2022-07-29 10:53:42 +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 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
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
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 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
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 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
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