## Issue Addressed
NA
## Proposed Changes
Adds the `--import-all-attestations` flag which tells the `network::AttestationService` to import/aggregate all attestations after verification (instead of only ones for subnets that are relevant to local validators).
This is useful for testing/debugging and also for creating back-up nodes that should be all cached up and ready for any validator.
## Additional Info
NA
## Issue Addressed
we have a log saying we add a peer to a chain, and an another one in case the chain is not syncing. To avoid needing to peer there two (and reduce log entries) simply log the chain's syncing state in the chain's KV
## Issue Addressed
Closes#1719
## Proposed Changes
Lift the internal `RwLock`s and `Mutex`es from the `Observed*` data structures to resolve the race conditions described in #1719.
Most of this work was done by @paulhauner on his `lift-locks` branch, I merely updated it for the current `master` and checked over it.
## Additional Info
I think it would be prudent to test this on a testnet or two before mainnet launch, just to be sure that the extra lock contention doesn't negatively impact performance.
## Issue Addressed
- Resolves#1945
## Proposed Changes
- As per #1945, fix a log message from the metrics server that was falsely claiming to be from the api server.
- Ensure successful api request logs are published to debug, not trace. This is something I've wanted to do for a while.
## Additional Info
NA
## Issue Addressed
NA
## Proposed Changes
- Caches later blocks than is required by `ETH1_FOLLOW_DISTANCE`.
- Adds logging to `warn` if the eth1 cache is insufficiently primed.
- Use `max_by_key` instead of `max_by` in `BeaconChain::Eth1Chain` since it's simpler.
- Rename `voting_period_start_timestamp` to `voting_target_timestamp` for accuracy.
## Additional Info
The reason for eating into the `ETH1_FOLLOW_DISTANCE` and caching blocks that are closer to the head is due to possibility for `SECONDS_PER_ETH1_BLOCK` to be incorrect (as is the case for the Pyrmont testnet on Goerli).
If `SECONDS_PER_ETH1_BLOCK` is too short, we'll skip back too far from the head and skip over blocks that would be valid [`is_candidate_block`](https://github.com/ethereum/eth2.0-specs/blob/v1.0.0/specs/phase0/validator.md#eth1-data) blocks. This was the case on the Pyrmont testnet and resulted in Lighthouse choosing blocks that were about 30 minutes older than is ideal.
## Issue Addressed
Resolves#1333
## Proposed Changes
- Remove `deposit_signature_set()` function
- Prevent deposits from being in `SignatureSets`
- User `Signature.verify()` to verify deposit signatures rather than a signature set which uses `fast_aggregate_verify()`
## Additional Info
n/a
## Issue Addressed
`BlocksByRange` requests were the main culprit of a series of timeouts to peer's requests in general because they produce build up in the router's processor. Those were moved to the blocking executor but a task is being spawned for each; also not ideal since the amount of resources we give to those is not controlled
## Proposed Changes
- Move `BlocksByRange` and `BlocksByRoots` to the `beacon_processor`. The processor crafts the responses and sends them.
- Move too the processing of `StatusMessage`s from other peers. This is a fast operation but it can also build up and won't scale if we keep it in the router (processing one at the time). These don't need to send an answer, so there is no harm in processing them "later" if that were to happen. Sending responses to status requests is still in the router, so we answer as soon as we see them.
- Some "extras" that are basically clean up:
- Split the `Worker` logic in sync methods (chain processing and rpc blocks), gossip methods (the majority of methods) and rpc methods (the new ones)
- Move the `status_message` function previously provided by the router's processor to a more central place since it is used by the router, sync, network_context and beacon_processor
- Some spelling
## Additional Info
What's left to decide/test more thoroughly is the length of the queues and the priority rules. @paulhauner suggested at some point to put status above attestations, and @AgeManning had described an importance of "protecting gossipsub" so my solution is leaving status requests in the router and RPC methods below attestations. Slashings and Exits are at the end.
## Issue Addressed
Catching up on a few eth2 spec updates:
## Proposed Changes
- adding query params to the `GET pool/attestations` endpoint
- allowing the `POST pool/attestations` endpoint to accept an array of attestations
- batching attestation submission
- moving `epoch` from a path param to a query param in the `committees` endpoint
## Additional Info
Co-authored-by: realbigsean <seananderson33@gmail.com>
## Issue Addressed
NA
## Proposed Changes
Removes most of the temporary string initializations in network metrics and replaces them by directly using `&str`. This further improves on PR https://github.com/sigp/lighthouse/pull/1895.
For the subnet id handling the current approach uses a build script to create a static map. This has the disadvantage that the build script hardcodes the number of subnets. If we want to use more than 64 subnets we need to adjust this in the build script.
## Additional Info
We still have some string initializations for the enum `PeerKind`. To also replace that by `&str` I created a PR in the libp2p dependency: https://github.com/sigp/rust-libp2p/pull/91. Either we wait with merging until this dependency PR is merged (and all conflicts with the newest libp2p version are resolved) or we just merge as is and I will create another PR when the dependency is ready.
## Issue Addressed
NA
## Proposed Changes
Users on Discord (and @protolambda) have experienced this error (or variants of it):
```
Failed to update eth1 cache: GetDepositLogsFailed("Eth1 node returned error: {\"code\":-32005,\"message\":\"query returned more than 10000 results\"}")
```
This PR allows users to reduce the span of blocks searched for deposit logs and therefore reduce the size of the return result. Hopefully experimentation with this flag can lead to finding a better default value.
## Additional Info
NA
## Issue Addressed
*Should* address #1917
## Proposed Changes
Stops the `BackgroupMigrator` rx channel from backing up with big `BeaconState` messages.
Looking at some logs from my Medalla node, we can see a discrepancy between the head finalized epoch and the migrator finalized epoch:
```
Nov 17 16:50:21.606 DEBG Head beacon block slot: 129214, root: 0xbc7a…0b99, finalized_epoch: 4033, finalized_root: 0xf930…6562, justified_epoch: 4035, justified_root: 0x206b…9321, service: beacon
Nov 17 16:50:21.626 DEBG Batch processed service: sync, processed_blocks: 43, last_block_slot: 129214, chain: 8274002112260436595, first_block_slot: 129153, batch_epoch: 4036
Nov 17 16:50:21.626 DEBG Chain advanced processing_target: 4036, new_start: 4036, previous_start: 4034, chain: 8274002112260436595, service: sync
Nov 17 16:50:22.162 DEBG Completed batch received awaiting_batches: 5, blocks: 47, epoch: 4048, chain: 8274002112260436595, service: sync
Nov 17 16:50:22.162 DEBG Requesting batch start_slot: 129601, end_slot: 129664, downloaded: 0, processed: 0, state: Downloading(16Uiu2HAmG3C3t1McaseReECjAF694tjVVjkDoneZEbxNhWm1nZaT, 0 blocks, 1273), epoch: 4050, chain: 8274002112260436595, service: sync
Nov 17 16:50:22.654 DEBG Database compaction complete service: beacon
Nov 17 16:50:22.655 INFO Starting database pruning new_finalized_epoch: 2193, old_finalized_epoch: 2192, service: beacon
```
I believe this indicates that the migrator rx has a backed-up queue of `MigrationNotification` items which each contain a `BeaconState`.
## TODO
- [x] Remove finalized state requirement for op-pool
## Proposed Changes
In an attempt to fix OOM issues and database consistency issues observed by some users after the introduction of compaction in v0.3.4, this PR makes the following changes:
* Run compaction less often: roughly every 1024 epochs, including after long periods of non-finality. I think the division check proposed by Paul is pretty solid, and ensures we don't miss any events where we should be compacting. LevelDB lacks an easy way to check the size of the DB, which would be another good trigger.
* Make it possible to disable the compaction on finalization using `--auto-compact-db=false`
* Make it possible to trigger a manual, single-threaded foreground compaction on start-up using `--compact-db`
* Downgrade the pruning log to `DEBUG`, as it's particularly noisy during sync
I would like to ship these changes to affected users ASAP, and will document them further in the Advanced Database section of the book if they prove effective.
## Issue Addressed
A peer might send a lot of requests that comply to the rate limit and the disconnect, this humongous pr makes sure we don't process them if the peer is not connected
This PR adds a number of improvements:
- Downgrade a warning log when we ignore blocks for gossipsub processing
- Revert a a correction to improve logging of peer score changes
- Shift syncing DB reads off the core-executor allowing parallel processing of large sync messages
- Correct the timeout logic of RPC chunk sends, giving more time before timing out RPC outbound messages.
## Issue Addressed
- RPC Errors were being logged twice: first in the peer manager and then again in the router, so leave just the peer manager's one
- The "reduce peer count" warn message gets thrown to the user for every missed chunk, so instead print it when the request times out and also do not include there info that is not relevant to the user
- The processor didn't have the service tag so add it
- Impl `KV` for status message
- Do not downscore peers if we are the ones that timed out
Other small improvements
## Issue Addressed
Resolves#1801
## Proposed Changes
Verify queries to `attestation_data` are for no later than `current_slot + 1`. If they are later than this, return a 400.
Co-authored-by: realbigsean <seananderson33@gmail.com>
## Issue Addressed
#1856
## Proposed Changes
- For clarity, the router's processor now only decides if a peer is compatible and it disconnects it or sends it to sync accordingly. No logic here regarding how useful is the peer.
- Update peer_sync_info's rules
- Add an `IrrelevantPeer` sync status to account for incompatible peers (maybe this should be "IncompatiblePeer" now that I think about it?) this state is update upon receiving an internal goodbye in the peer manager
- Misc code cleanups
- Reduce the need to create `StatusMessage`s (and thus, `Arc` accesses )
- Add missing calls to update the global sync state
The overall effect should be:
- More peers recognized as Behind, and less as Unknown
- Peers identified as incompatible
## Issue Addressed
- Asymmetric pings - Currently with symmetric ping intervals, lighthouse nodes race each other to ping often ending in simultaneous ping connections. This shifts the ping interval to be asymmetric based on inbound/outbound connections
- Correct inbound/outbound peer-db registering - It appears we were accounting inbound as outbound and vice versa in the peerdb, this has been corrected
- Improved logging
There is likely more to come - I'll leave this open as we investigate further testnets
## Issue Addressed
Using `heaptrack` I could see that ~75% of Lighthouse temporary allocations are caused by temporary string allocations here.
## Proposed Changes
Reduces temporary `String` allocations when updating metrics in the `network` crate. The solution isn't perfect since we rebuild our caches with each call, but it's a significant improvement.
## Additional Info
NA
## Issue Addressed
NA
## Proposed Changes
Correctly handles peer state transitions on gossipsub changes + refactors handling of peer state transitions into one function used for lighthouse score changes and gossipsub score changes.
Co-authored-by: Age Manning <Age@AgeManning.com>
## Issue Addressed
NA
## Proposed Changes
Increases the target peers for a subnet, so that subnet queries are executed until we have at least the minimum required peers for a mesh (`MESH_N_LOW`). We keep the limit of `6` target peers for aggregated subnet discovery queries, therefore the size (and the time needed) for a query doesn't change.
## Issue Addressed
#1606
## Proposed Changes
Uses dynamic gossipsub scoring parameters depending on the number of active validators as specified in https://gist.github.com/blacktemplar/5c1862cb3f0e32a1a7fb0b25e79e6e2c.
## Additional Info
Although the parameters got tested on Medalla, extensive testing using simulations on larger networks is still to be done and we expect that we need to change the parameters, although this might only affect constants within the dynamic parameter framework.
## Issue Addressed
Resolves#1809Resolves#1824Resolves#1818Resolves#1828 (hopefully)
## Proposed Changes
- add `validator_index` to the proposer duties endpoint
- add the ability to query for historical proposer duties
- `StateId` deserialization now fails with a 400 warp rejection
- add the `validator_balances` endpoint
- update the `aggregate_and_proofs` endpoint to accept an array
- updates the attester duties endpoint from a `GET` to a `POST`
- reduces the number of times we query for proposer duties from once per slot per validator to only once per slot
Co-authored-by: realbigsean <seananderson33@gmail.com>
Co-authored-by: Paul Hauner <paul@paulhauner.com>
## Issue Addressed
Closes#1866
## Proposed Changes
* Compact the database on finalization. This removes the deleted states from disk completely. Because it happens in the background migrator, it doesn't block other database operations while it runs. On my Medalla node it took about 1 minute and shrank the database from 90GB to 9GB.
* Fix an inefficiency in the pruning algorithm where it would always use the genesis checkpoint as the `old_finalized_checkpoint` when running for the first time after start-up. This would result in loading lots of states one-at-a-time back to genesis, and storing a lot of block roots in memory. The new code stores the old finalized checkpoint on disk and only uses genesis if no checkpoint is already stored. This makes it both backwards compatible _and_ forwards compatible -- no schema change required!
* Introduce two new `INFO` logs to indicate when pruning has started and completed. Users seem to want to know this information without enabling debug logs!
Updates libp2p to the latest version.
This adds tokio 0.3 support and brings back yamux support.
This also updates some discv5 configuration parameters for leaner discovery queries
## Issue Addressed
NA
## Proposed Changes
Lets the networking behavior ignore messages of peers that are not connected. Furthermore, old peers are not removed from the peerdb based on score anymore but based on the disconnection time.
## Issue Addressed
- Related to #1691
## Proposed Changes
Adds the following API endpoints:
- `GET lighthouse/eth1/syncing`: status about how synced we are with Eth1.
- `GET lighthouse/eth1/block_cache`: all locally cached eth1 blocks.
- `GET lighthouse/eth1/deposit_cache`: all locally cached eth1 deposits.
Additionally:
- Moves some types from the `beacon_node/eth1` to the `common/eth2` crate, so they can be used in the API without duplication.
- Allow `update_deposit_cache` and `update_block_cache` to take an optional head block number to avoid duplicate requests.
## Additional Info
TBC
## Issue Addressed
Fixes head syncing
## Proposed Changes
- Get back to statusing peers after removing chain segments and making the peer manager deal with status according to the Sync status, preventing an old known deadlock
- Also a bug where a chain would get removed if the optimistic batch succeeds being empty
## Additional Info
Tested on Medalla and looking good
## Issue Addressed
NA
## Proposed Changes
As raised by @hermanjunge in a DM, the `http_api` tests have been observed taking 100+ minutes on debug. This PR:
- Moves the `http_api` tests to only run in release.
- Groups some `http_api` tests to reduce test-setup overhead.
## Additional Info
NA
## Issue Addressed
Michael's comment here: https://github.com/sigp/lighthouse/issues/1434#issuecomment-708834079Resolves#1808
## Proposed Changes
- Add query param `id` and `status` to the `validators` endpoint
- Add string serialization and deserialization for `ValidatorStatus`
- Drop `Epoch` from `ValidatorStatus` variants
## Additional Info
Please provide any additional information. For example, future considerations
or information useful for reviewers.
## Issue Addressed
Sync edge case when we get an empty optimistic batch that passes validation and is inside the download buffer. Eventually the chain would reach the batch and treat it as an ugly state.
## Proposed Changes
- Handle the edge case advancing the chain's target + code clarification
- Some largey changes for readability + ergonomics since rust has try ops
- Better handling of bad batch and chain states
## Issue Addressed
NA
## Proposed Changes
Currently a banned peer will remain banned indefinitely as long as update is called on the score struct regularly. This fixes this bug and the score decay starts after `BANNED_BEFORE_DECAY` seconds after banning.
## Issue Addressed
Closes#1504Closes#1505
Replaces #1703Closes#1707
## Proposed Changes
* Update BLST and Milagro to versions compatible with BLSv4 spec
* Update Lighthouse to spec v1.0.0-rc.0, and update EF test vectors
* Use the v1.0.0 constants for `MainnetEthSpec`.
* Rename `InteropEthSpec` -> `V012LegacyEthSpec`
* Change all constants to suit the mainnet `v0.12.3` specification (i.e., Medalla).
* Deprecate the `--spec` flag for the `lighthouse` binary
* This value is now obtained from the `config_name` field of the `YamlConfig`.
* Built in testnet YAML files have been updated.
* Ignore the `--spec` value, if supplied, log a warning that it will be deprecated
* `lcli` still has the spec flag, that's fine because it's dev tooling.
* Remove the `E: EthSpec` from `YamlConfig`
* This means we need to deser the genesis `BeaconState` on-demand, but this is fine.
* Swap the old "minimal", "mainnet" strings over to the new `EthSpecId` enum.
* Always require a `CONFIG_NAME` field in `YamlConfig` (it used to have a default).
## Additional Info
Lots of breaking changes, do not merge! ~~We will likely need a Lighthouse v0.4.0 branch, and possibly a long-term v0.3.0 branch to keep Medalla alive~~.
Co-authored-by: Kirk Baird <baird.k@outlook.com>
Co-authored-by: Paul Hauner <paul@paulhauner.com>
## Issue Addressed
#1825
## Proposed Changes
Since we penalize more blocks by range requests that have large steps, it is possible to get requests that will never be processed. We were not informing peers about this requests and also logging CRIT that is no longer relevant. Later we should check if more sophisticated handling for those requests is needed
## Issue Addressed
NA
## Proposed Changes
Fixes a bug which causes the node to reject valid eth1 nodes.
- Fix core bug: failure to apply `YamlConfig` values to `ChainSpec`.
- Add a test to prevent regression in this specific case.
- Fix an invalid log message
## Additional Info
NA
## Issue Addressed
NA
## Proposed Changes
- Panic or return error if we overflow `usize` in SSZ decoding/encoding derive macros.
- I claim that the panics can only be triggered by a faulty type definition in lighthouse, they cannot be triggered externally on a validly defined struct.
- Use `Ordering` instead of some `if` statements, as demanded by clippy.
- Remove some old clippy `allow` that seem to no longer be required.
- Add comments to interesting clippy statements that we're going to continue to ignore.
- Create #1713
## Additional Info
NA
## Issue Addressed
- Related to #1691
## Proposed Changes
- Add `DEPOSIT_CHAIN_ID` and `DEPOSIT_NETWORK_ID` to `config.yaml`.
- Pass the `DEPOSIT_NETWORK_ID` to the `eth1::Service`.
- Remove the unused `MAX_EPOCHS_PER_CROSSLINK` from the `altona` and `medalla` configs (see [spec commit](2befe90032 (diff-efb845ac2ebd4aafbc23df40f47ce25699255064e99d36d0406d0a14ca7953ec))).
- Change from compressing the whole testnet directory, to only compressing the genesis state file. This is the only file we need to compress and *not* compressing the others makes them work nicely with git.
- We can modify the boot nodes, configs, etc. without incurring an eternal binary-blob cost on our git history.
- This change is backwards compatible (i.e., non-breaking).
## Additional Info
NA
## Issue Addressed
Further testing revealed another edge case where we attempt to unban a peer that can be in a disconnected start. Although this causes no real issue, it does log an error to the user.
This PR adds a check to prevent this edge case and prevents the error being logged to the user.
This PR prevents a user-facing error.
It prevents optimistically unbanning a peer and instead checks the state of the peer before requesting the peers state to be unbanned.
As @AgeManning mentioned the newest libp2p version had some problems and got downgraded again on lighthouse master. This is an intermediate version that makes no problems and only adds a small change of allowing only one topic per message.
## Description
This downgrades the recent libp2p upgrade.
There were issues with the RPC which prevented syncing of the chain and this upgrade needs to be further investigated.
## Overview
This updates lighthouse to discovery v5.1
Note: This makes lighthouse's discovery not compatible with any previous version. Lighthouse cannot discover peers or send/receive ENR's from any previous version. This is a breaking change.
This resolves#1605
## Description
This increases the logging of the underlying UPnP tasks to inform the user of UPnP error/success.
This also decreases the batch syncing size to two epochs per batch.
## Description
Updates to the latest libp2p and includes gossipsub updates.
Of particular note is the limitation of a single topic per gossipsub message.
Co-authored-by: blacktemplar <blacktemplar@a1.net>
## Issue Addressed
Closes#800Closes#1713
## Proposed Changes
Implement the temporary state storage algorithm described in #800. Specifically:
* Add `DBColumn::BeaconStateTemporary`, for storing 0-length temporary marker values.
* Store intermediate states immediately as they are created, marked temporary. Delete the temporary flag if the block is processed successfully.
* Add a garbage collection process to delete leftover temporary states on start-up.
* Bump the database schema version to 2 so that a DB with temporary states can't accidentally be used with older versions of the software. The auto-migration is a no-op, but puts in place some infra that we can use for future migrations (e.g. #1784)
## Additional Info
There are two known race conditions, one potentially causing permanent faults (hopefully rare), and the other insignificant.
### Race 1: Permanent state marked temporary
EDIT: this has been fixed by the addition of a lock around the relevant critical section
There are 2 threads that are trying to store 2 different blocks that share some intermediate states (e.g. they both skip some slots from the current head). Consider this sequence of events:
1. Thread 1 checks if state `s` already exists, and seeing that it doesn't, prepares an atomic commit of `(s, s_temporary_flag)`.
2. Thread 2 does the same, but also gets as far as committing the state txn, finishing the processing of its block, and _deleting_ the temporary flag.
3. Thread 1 is (finally) scheduled again, and marks `s` as temporary with its transaction.
4.
a) The process is killed, or thread 1's block fails verification and the temp flag is not deleted. This is a permanent failure! Any attempt to load state `s` will fail... hope it isn't on the main chain! Alternatively (4b) happens...
b) Thread 1 finishes, and re-deletes the temporary flag. In this case the failure is transient, state `s` will disappear temporarily, but will come back once thread 1 finishes running.
I _hope_ that steps 1-3 only happen very rarely, and 4a even more rarely. It's hard to know
This once again begs the question of why we're using LevelDB (#483), when it clearly doesn't care about atomicity! A ham-fisted fix would be to wrap the hot and cold DBs in locks, which would bring us closer to how other DBs handle read-write transactions. E.g. [LMDB only allows one R/W transaction at a time](https://docs.rs/lmdb/0.8.0/lmdb/struct.Environment.html#method.begin_rw_txn).
### Race 2: Temporary state returned from `get_state`
I don't think this race really matters, but in `load_hot_state`, if another thread stores a state between when we call `load_state_temporary_flag` and when we call `load_hot_state_summary`, then we could end up returning that state even though it's only a temporary state. I can't think of any case where this would be relevant, and I suspect if it did come up, it would be safe/recoverable (having data is safer than _not_ having data).
This could be fixed by using a LevelDB read snapshot, but that would require substantial changes to how we read all our values, so I don't think it's worth it right now.
## Issue Addressed
Potentially resolves#1647 and sync stalls.
## Proposed Changes
The handling of the state of banned peers was inadequate for the complex peerdb data structure. We store a limited number of disconnected and banned peers in the db. We were not tracking intermediate "disconnecting" states and the in some circumstances we were updating the peer state without informing the peerdb. This lead to a number of inconsistencies in the peer state.
Further, the peer manager could ban a peer changing a peer's state from being connected to banned. In this circumstance, if the peer then disconnected, we didn't inform the application layer, which lead to applications like sync not being informed of a peers disconnection. This could lead to sync stalling and having to require a lighthouse restart.
Improved handling for peer states and interactions with the peerdb is made in this PR.
## Issue Addressed
NA
## Proposed Changes
Adds a `lighthouse/beacon/states/:state_id/ssz` endpoint to allow us to pull the genesis state from the API.
## Additional Info
NA
## Issue Addressed
Closes#1769Closes#1708
## Proposed Changes
Tweaks the op pool pruning so that the attestation pool is pruned against the wall-clock epoch instead of the finalized state's epoch. This should reduce the unbounded growth that we've seen during periods without finality.
Also fixes up the voluntary exit pruning as raised in #1708.
## Issue Addressed
- Resolves#1766
## Proposed Changes
- Use the `warp::filters::cors` filter instead of our work-around.
## Additional Info
It's not trivial to enable/disable `cors` using `warp`, since using `routes.with(cors)` changes the type of `routes`. This makes it difficult to apply/not apply cors at runtime. My solution has been to *always* use the `warp::filters::cors` wrapper but when cors should be disabled, just pass the HTTP server listen address as the only permissible origin.
## Issue Addressed
`node` endpoints in #1434
## Proposed Changes
Implement these:
```
/eth/v1/node/health
/eth/v1/node/peers/{peer_id}
/eth/v1/node/peers
```
- Add an `Option<Enr>` to `PeerInfo`
- Finish implementation of `/eth/v1/node/identity`
## Additional Info
- should update the `peers` endpoints when #1764 is resolved
Co-authored-by: realbigsean <seananderson33@gmail.com>
## Issue Addressed
Closes#1548
## Proposed Changes
Optimizes attester slashing choice by choosing the ones that cover the most amount of validators slashed, with the highest effective balances
## Additional Info
Initial pass, need to write a test for it
check for advanced peers and the state of the chain wrt the clock slot to decide if a chain is or not synced /transitioning to a head sync. Also a fix that prevented getting the right state while syncing heads
## Issue Addressed
Resolves#1776
## Proposed Changes
The beacon chain builder was using the canonical head's state root for the `genesis_state_root` field.
## Additional Info
## Issue Addressed
Resolves#1792
## Proposed Changes
Use `chain.best_slot()` instead of the sync state's target slot in the `not_while_syncing_filter`
## Additional Info
N/A
## Issue Addressed
#1614 and a couple of sync-stalling problems, the most important is a cyclic dependency between the sync manager and the peer manager
## Issue Addressed
Closes#1557
## Proposed Changes
Modify the pruning algorithm so that it mutates the head-tracker _before_ committing the database transaction to disk, and _only if_ all the heads to be removed are still present in the head-tracker (i.e. no concurrent mutations).
In the process of writing and testing this I also had to make a few other changes:
* Use internal mutability for all `BeaconChainHarness` functions (namely the RNG and the graffiti), in order to enable parallel calls (see testing section below).
* Disable logging in harness tests unless the `test_logger` feature is turned on
And chose to make some clean-ups:
* Delete the `NullMigrator`
* Remove type-based configuration for the migrator in favour of runtime config (simpler, less duplicated code)
* Use the non-blocking migrator unless the blocking migrator is required. In the store tests we need the blocking migrator because some tests make asserts about the state of the DB after the migration has run.
* Rename `validators_keypairs` -> `validator_keypairs` in the `BeaconChainHarness`
## Testing
To confirm that the fix worked, I wrote a test using [Hiatus](https://crates.io/crates/hiatus), which can be found here:
https://github.com/michaelsproul/lighthouse/tree/hiatus-issue-1557
That test can't be merged because it inserts random breakpoints everywhere, but if you check out that branch you can run the test with:
```
$ cd beacon_node/beacon_chain
$ cargo test --release --test parallel_tests --features test_logger
```
It should pass, and the log output should show:
```
WARN Pruning deferred because of a concurrent mutation, message: this is expected only very rarely!
```
## Additional Info
This is a backwards-compatible change with no impact on consensus.
## Issue Addressed
NA
## Proposed Changes
Adds a direction field to `PeerConnectionStatus` that can be accessed by calling `is_outgoing` which will return `true` iff the peer is connected and the first connection was an outgoing one.
## Issue Addressed
#1729#1730
Which issue # does this PR address?
## Proposed Changes
1. Fixes a bug in the simulator where nodes can't find each other due to 0 udp ports in their enr.
2. Fixes bugs in attestation service where we are unsubscribing from a subnet prematurely.
More testing is needed for attestation service fixes.
## Proposed Changes
Adds a gossipsub topic filter that only allows subscribing and incoming subscriptions from valid ETH2 topics.
## Additional Info
Currently the preparation of the valid topic hashes uses only the current fork id but in the future it must also use all possible future fork ids for planned forks. This has to get added when hard coded forks get implemented.
DO NOT MERGE: We first need to merge the libp2p changes (see https://github.com/sigp/rust-libp2p/pull/70) so that we can refer from here to a commit hash inside the lighthouse branch.
## Proposed Changes
Implement the new message id function (see https://github.com/ethereum/eth2.0-specs/pull/2089) using an additional fast message id function for better performance + caching decompressed data.
## Issue Addressed
N/A
## Proposed Changes
This PR limits the length of the stream received by the snappy decoder to be the maximum allowed size for the received rpc message type. Also adds further checks to ensure that the length specified in the rpc [encoding-dependent header](https://github.com/ethereum/eth2.0-specs/blob/dev/specs/phase0/p2p-interface.md#encoding-strategies) is within the bounds for the rpc message type being decoded.
Squashed commit of the following:
commit f99373cbaec9adb2bdbae3f7e903284327962083
Author: Age Manning <Age@AgeManning.com>
Date: Mon Oct 5 18:44:09 2020 +1100
Clean up obsolute TODOs
## Issue Addressed
- Resolves#1706
## Proposed Changes
Updates dependencies across the workspace. Any crate that was not able to be brought to the latest version is listed in #1712.
## Additional Info
NA
* Initial rebase
* Remove old code
* Correct release tests
* Rebase commit
* Remove eth2-testnet dep on eth2libp2p
* Remove crates lost in rebase
* Remove unused dep
## Issue Addressed
Downgrade inconsistent chain segment states from `panic` to `crit`. I don't love this solution but since range can always bounce back from any of those, we don't panic.
Co-authored-by: Age Manning <Age@AgeManning.com>
## Issue Addressed
chain state inconsistencies
## Proposed Changes
- a batch can be fake-failed by Range if it needs to move a peer to another chain. The peer will still send blocks/ errors / produce timeouts for those requests, so check when we get a response from the RPC that the request id matches, instead of only the peer, since a re-request can be directed to the same peer.
- if an optimistic batch succeeds, store the attempt to avoid trying it again when quickly switching chains. Also, use it only if ahead of our current target, instead of the segment's start epoch
## Issue Addressed
NA
## Proposed Changes
Uses a `Drop` implementation to help ensure that `BeaconProcessor` workers are freed. This will help prevent against regression, if someone happens to add an early return and it will also help in the case of a panic.
## Additional Info
NA
## Issue Addressed
Downgrade inconsistent chain segment states from `panic` to `crit`. I don't love this solution but since range can always bounce back from any of those, we don't panic.
Co-authored-by: Age Manning <Age@AgeManning.com>
## Issue Addressed
chain state inconsistencies
## Proposed Changes
- a batch can be fake-failed by Range if it needs to move a peer to another chain. The peer will still send blocks/ errors / produce timeouts for those requests, so check when we get a response from the RPC that the request id matches, instead of only the peer, since a re-request can be directed to the same peer.
- if an optimistic batch succeeds, store the attempt to avoid trying it again when quickly switching chains. Also, use it only if ahead of our current target, instead of the segment's start epoch
## Issue Addressed
NA
## Proposed Changes
Uses a `Drop` implementation to help ensure that `BeaconProcessor` workers are freed. This will help prevent against regression, if someone happens to add an early return and it will also help in the case of a panic.
## Additional Info
NA
## Issue Addressed
NA
## Proposed Changes
Addresses an interesting DoS vector raised by @protolambda by verifying that the head and target are consistent when processing aggregate attestations. This check prevents us from loading very old target blocks and doing lots of work to skip them to the current slot.
## Additional Info
NA
This commit was modified by Paul H whilst rebasing master onto
v0.3.0-staging
Adding UPnP support will help grow the DHT by allowing NAT traversal for peers with UPnP supported routers.
Using IGD library: https://docs.rs/igd/0.10.0/igd/
Adding the the libp2p tcp port and discovery udp port. If this fails it simply logs the attempt and moves on
Co-authored-by: Age Manning <Age@AgeManning.com>
This commit was edited by Paul H when rebasing from master to
v0.3.0-staging.
Solution 2 proposed here: https://github.com/sigp/lighthouse/issues/1435#issuecomment-692317639
- Adds an optional `--wss-checkpoint` flag that takes a string `root:epoch`
- Verify that the given checkpoint exists in the chain, or that the the chain syncs through this checkpoint. If not, shutdown and prompt the user to purge state before restarting.
Co-authored-by: Paul Hauner <paul@paulhauner.com>
## Issue Addressed
NA
## Proposed Changes
Addresses an interesting DoS vector raised by @protolambda by verifying that the head and target are consistent when processing aggregate attestations. This check prevents us from loading very old target blocks and doing lots of work to skip them to the current slot.
## Additional Info
NA
## Issue Addressed
NA
## Proposed Changes
- Implements a HTTP API for the validator client.
- Creates EIP-2335 keystores with an empty `description` field, instead of a missing `description` field. Adds option to set name.
- Be more graceful with setups without any validators (yet)
- Remove an error log when there are no validators.
- Create the `validator` dir if it doesn't exist.
- Allow building a `ValidatorDir` without a withdrawal keystore (required for the API method where we only post a voting keystore).
- Add optional `description` field to `validator_definitions.yml`
## TODO
- [x] Signature header, as per https://github.com/sigp/lighthouse/issues/1269#issuecomment-649879855
- [x] Return validator descriptions
- [x] Return deposit data
- [x] Respect the mnemonic offset
- [x] Check that mnemonic can derive returned keys
- [x] Be strict about non-localhost
- [x] Allow graceful start without any validators (+ create validator dir)
- [x] Docs final pass
- [x] Swap to EIP-2335 description field.
- [x] Fix Zerioze TODO in VC api types.
- [x] Zeroize secp256k1 key
## Endpoints
- [x] `GET /lighthouse/version`
- [x] `GET /lighthouse/health`
- [x] `GET /lighthouse/validators`
- [x] `POST /lighthouse/validators/hd`
- [x] `POST /lighthouse/validators/keystore`
- [x] `PATCH /lighthouse/validators/:validator_pubkey`
- [ ] ~~`POST /lighthouse/validators/:validator_pubkey/exit/:epoch`~~ Future works
## Additional Info
TBC
Adding UPnP support will help grow the DHT by allowing NAT traversal for peers with UPnP supported routers.
## Issue Addressed
#927
## Proposed Changes
Using IGD library: https://docs.rs/igd/0.10.0/igd/
Adding the the libp2p tcp port and discovery udp port. If this fails it simply logs the attempt and moves on
## Additional Info
Co-authored-by: Age Manning <Age@AgeManning.com>
## Issue Addressed
Solution 2 proposed here: https://github.com/sigp/lighthouse/issues/1435#issuecomment-692317639
## Proposed Changes
- Adds an optional `--wss-checkpoint` flag that takes a string `root:epoch`
- Verify that the given checkpoint exists in the chain, or that the the chain syncs through this checkpoint. If not, shutdown and prompt the user to purge state before restarting.
## Additional Info
Co-authored-by: Paul Hauner <paul@paulhauner.com>
## Issue Addressed
Closes#673
## Proposed Changes
Store a schema version in the database so that future releases can check they're running against a compatible database version. This would also enable automatic migration on breaking database changes, but that's left as future work.
The database config is also stored in the database so that the `slots_per_restore_point` value can be checked for consistency, which closes#673
- Resolves#1550
- Resolves#824
- Resolves#825
- Resolves#1131
- Resolves#1411
- Resolves#1256
- Resolve#1177
- Includes the `ShufflingId` struct initially defined in #1492. That PR is now closed and the changes are included here, with significant bug fixes.
- Implement the https://github.com/ethereum/eth2.0-APIs in a new `http_api` crate using `warp`. This replaces the `rest_api` crate.
- Add a new `common/eth2` crate which provides a wrapper around `reqwest`, providing the HTTP client that is used by the validator client and for testing. This replaces the `common/remote_beacon_node` crate.
- Create a `http_metrics` crate which is a dedicated server for Prometheus metrics (they are no longer served on the same port as the REST API). We now have flags for `--metrics`, `--metrics-address`, etc.
- Allow the `subnet_id` to be an optional parameter for `VerifiedUnaggregatedAttestation::verify`. This means it does not need to be provided unnecessarily by the validator client.
- Move `fn map_attestation_committee` in `mod beacon_chain::attestation_verification` to a new `fn with_committee_cache` on the `BeaconChain` so the same cache can be used for obtaining validator duties.
- Add some other helpers to `BeaconChain` to assist with common API duties (e.g., `block_root_at_slot`, `head_beacon_block_root`).
- Change the `NaiveAggregationPool` so it can index attestations by `hash_tree_root(attestation.data)`. This is a requirement of the API.
- Add functions to `BeaconChainHarness` to allow it to create slashings and exits.
- Allow for `eth1::Eth1NetworkId` to go to/from a `String`.
- Add functions to the `OperationPool` to allow getting all objects in the pool.
- Add function to `BeaconState` to check if a committee cache is initialized.
- Fix bug where `seconds_per_eth1_block` was not transferring over from `YamlConfig` to `ChainSpec`.
- Add the `deposit_contract_address` to `YamlConfig` and `ChainSpec`. We needed to be able to return it in an API response.
- Change some uses of serde `serialize_with` and `deserialize_with` to a single use of `with` (code quality).
- Impl `Display` and `FromStr` for several BLS fields.
- Check for clock discrepancy when VC polls BN for sync state (with +/- 1 slot tolerance). This is not intended to be comprehensive, it was just easy to do.
- See #1434 for a per-endpoint overview.
- Seeking clarity here: https://github.com/ethereum/eth2.0-APIs/issues/75
- [x] Add docs for prom port to close#1256
- [x] Follow up on this #1177
- [x] ~~Follow up with #1424~~ Will fix in future PR.
- [x] Follow up with #1411
- [x] ~~Follow up with #1260~~ Will fix in future PR.
- [x] Add quotes to all integers.
- [x] Remove `rest_types`
- [x] Address missing beacon block error. (#1629)
- [x] ~~Add tests for lighthouse/peers endpoints~~ Wontfix
- [x] ~~Follow up with validator status proposal~~ Tracked in #1434
- [x] Unify graffiti structs
- [x] ~~Start server when waiting for genesis?~~ Will fix in future PR.
- [x] TODO in http_api tests
- [x] Move lighthouse endpoints off /eth/v1
- [x] Update docs to link to standard
- ~~Blocked on #1586~~
Co-authored-by: Michael Sproul <michael@sigmaprime.io>
