Commit Graph

57 Commits

Author SHA1 Message Date
Mac L
f3fd1f210b Remove consensus/types re-exports (#8540)
There are certain crates which we re-export within `types` which creates a fragmented DevEx, where there are various ways to import the same crates.

```rust
// consensus/types/src/lib.rs
pub use bls::{
AggregatePublicKey, AggregateSignature, Error as BlsError, Keypair, PUBLIC_KEY_BYTES_LEN,
PublicKey, PublicKeyBytes, SIGNATURE_BYTES_LEN, SecretKey, Signature, SignatureBytes,
get_withdrawal_credentials,
};
pub use context_deserialize::{ContextDeserialize, context_deserialize};
pub use fixed_bytes::FixedBytesExtended;
pub use milhouse::{self, List, Vector};
pub use ssz_types::{BitList, BitVector, FixedVector, VariableList, typenum, typenum::Unsigned};
pub use superstruct::superstruct;
```

This PR removes these re-exports and makes it explicit that these types are imported from a non-`consensus/types` crate.


Co-Authored-By: Mac L <mjladson@pm.me>
2025-12-09 07:13:41 +00:00
Michael Sproul
d235f2c697 Delete RuntimeVariableList::from_vec (#7930)
This method is a footgun because it truncates the list. It is the source of a recent bug:

- https://github.com/sigp/lighthouse/pull/7927


  - Delete uses of `RuntimeVariableList::from_vec` and replace them with `::new` which does validation and can fail.
- Propagate errors where possible, unwrap in tests and use `expect` for obviously-safe uses (in `chain_spec.rs`).
2025-08-27 06:52:14 +00:00
Akihito Nakano
a2797d4bbd Fix formatting errors from cargo-sort (#7512)
[cargo-sort is currently failing on CI](https://github.com/sigp/lighthouse/actions/runs/15198128212/job/42746931918?pr=7025), likely due to new checks introduced in version [2.0.0](https://github.com/DevinR528/cargo-sort/releases/tag/v2.0.0).


  Fixed the errors by running cargo-sort with formatting enabled.
2025-05-23 05:25:56 +00:00
Michael Sproul
578db67755 Merge remote-tracking branch 'origin/release-v7.0.0' into backmerge-apr-2 2025-04-02 09:57:42 +11:00
Michael Sproul
9bc0d5161e Disable LevelDB snappy feature (#7235)
Disable the `snappy` feature of LevelDB to prevent compilation issues with CMake 4.0, e.g.

https://github.com/sigp/lighthouse/actions/runs/14182783816/job/39732457274?pr=7231

We do not use Snappy compression in LevelDB, and do not need to compile this. This might also shave a few seconds off compilation!
2025-04-01 07:56:06 +00:00
ThreeHrSleep
d60c24ef1c Integrate tracing (#6339)
Tracing Integration
- [reference](5bbf1859e9/projects/project-ideas.md (L297))


  - [x] replace slog & log with tracing throughout the codebase
- [x] implement custom crit log
- [x] make relevant changes in the formatter
- [x] replace sloggers
- [x] re-write SSE logging components

cc: @macladson @eserilev
2025-03-12 22:31:05 +00:00
Eitan Seri-Levi
a1b7d616b4 Modularize beacon node backend (#4718)
#4669


  Modularize the beacon node backend to make it easier to add new database implementations
2025-01-23 02:12:16 +00:00
Mac L
b2b1faad4e Enforce alphabetically ordered cargo deps (#6678)
* Enforce alphabetically ordered cargo deps

* Fix test-suite

* Another CI fix

* Merge branch 'unstable' into cargo-sort

* Fix conflicts

* Merge remote-tracking branch 'origin/unstable' into cargo-sort
2024-12-19 05:46:03 +00:00
Michael Sproul
9fdd53df56 Hierarchical state diffs (#5978)
* Start extracting freezer changes for tree-states

* Remove unused config args

* Add comments

* Remove unwraps

* Subjective more clear implementation

* Clean up hdiff

* Update xdelta3

* Tree states archive metrics (#6040)

* Add store cache size metrics

* Add compress timer metrics

* Add diff apply compute timer metrics

* Add diff buffer cache hit metrics

* Add hdiff buffer load times

* Add blocks replayed metric

* Move metrics to store

* Future proof some metrics

---------

Co-authored-by: Michael Sproul <michael@sigmaprime.io>

* Port and clean up forwards iterator changes

* Add and polish hierarchy-config flag

* Merge remote-tracking branch 'origin/unstable' into tree-states-archive

* Cleaner errors

* Fix beacon_chain test compilation

* Merge remote-tracking branch 'origin/unstable' into tree-states-archive

* Patch a few more freezer block roots

* Fix genesis block root bug

* Fix test failing due to pending updates

* Beacon chain tests passing

* Merge remote-tracking branch 'origin/unstable' into tree-states-archive

* Merge remote-tracking branch 'origin/unstable' into tree-states-archive

* Fix doc lint

* Implement DB schema upgrade for hierarchical state diffs (#6193)

* DB upgrade

* Add flag

* Delete RestorePointHash

* Update docs

* Update docs

* Implement hierarchical state diffs config migration (#6245)

* Implement hierarchical state diffs config migration

* Review PR

* Remove TODO

* Set CURRENT_SCHEMA_VERSION correctly

* Fix genesis state loading

* Re-delete some PartialBeaconState stuff

---------

Co-authored-by: Michael Sproul <michael@sigmaprime.io>

* Merge remote-tracking branch 'origin/unstable' into tree-states-archive

* Fix test compilation

* Update schema downgrade test

* Fix tests

* Fix null anchor migration

* Merge remote-tracking branch 'origin/unstable' into tree-states-archive

* Fix tree states upgrade migration (#6328)

* Towards crash safety

* Fix compilation

* Move cold summaries and state roots to new columns

* Rename StateRoots chunked field

* Update prune states

* Clean hdiff CLI flag and metrics

* Fix "staged reconstruction"

* Merge remote-tracking branch 'origin/unstable' into tree-states-archive

* Fix alloy issues

* Fix staged reconstruction logic

* Prevent weird slot drift

* Remove "allow" flag

* Update CLI help

* Remove FIXME about downgrade

* Merge remote-tracking branch 'origin/unstable' into tree-states-archive

* Remove some unnecessary error variants

* Fix new test

* Tree states archive - review comments and metrics (#6386)

* Review PR comments and metrics

* Comments

* Add anchor metrics

* drop prev comment

* Update metadata.rs

* Apply suggestions from code review

---------

Co-authored-by: Michael Sproul <micsproul@gmail.com>

* Update beacon_node/store/src/hot_cold_store.rs

Co-authored-by: Lion - dapplion <35266934+dapplion@users.noreply.github.com>

* Merge remote-tracking branch 'origin/unstable' into tree-states-archive

* Clarify comment and remove anchor_slot garbage

* Simplify database anchor (#6397)

* Simplify database anchor

* Update beacon_node/store/src/reconstruct.rs

* Add migration for anchor

* Fix and simplify light_client store tests

* Fix incompatible config test

* Merge remote-tracking branch 'origin/unstable' into tree-states-archive

* Merge remote-tracking branch 'origin/unstable' into tree-states-archive

* More metrics

* Merge remote-tracking branch 'origin/unstable' into tree-states-archive

* New historic state cache (#6475)

* New historic state cache

* Add more metrics

* State cache hit rate metrics

* Fix store metrics

* More logs and metrics

* Fix logger

* Ensure cached states have built caches :O

* Replay blocks in preference to diffing

* Two separate caches

* Distribute cache build time to next slot

* Re-plumb historic-state-cache flag

* Clean up metrics

* Update book

* Update beacon_node/store/src/hdiff.rs

Co-authored-by: Lion - dapplion <35266934+dapplion@users.noreply.github.com>

* Update beacon_node/store/src/historic_state_cache.rs

Co-authored-by: Lion - dapplion <35266934+dapplion@users.noreply.github.com>

---------

Co-authored-by: Lion - dapplion <35266934+dapplion@users.noreply.github.com>

* Update database docs

* Update diagram

* Merge remote-tracking branch 'origin/unstable' into tree-states-archive

* Update lockbud to work with bindgen/etc

* Correct pkg name for Debian

* Remove vestigial epochs_per_state_diff

* Merge remote-tracking branch 'origin/unstable' into tree-states-archive

* Markdown lint

* Merge remote-tracking branch 'origin/unstable' into tree-states-archive

* Address Jimmy's review comments

* Simplify ReplayFrom case

* Fix and document genesis_state_root

* Typo

Co-authored-by: Jimmy Chen <jchen.tc@gmail.com>

* Merge branch 'unstable' into tree-states-archive

* Compute diff of validators list manually (#6556)

* Split hdiff computation

* Dedicated logic for historical roots and summaries

* Benchmark against real states

* Mutated source?

* Version the hdiff

* Add lighthouse DB config for hierarchy exponents

* Tidy up hierarchy exponents flag

* Apply suggestions from code review

Co-authored-by: Michael Sproul <micsproul@gmail.com>

* Address PR review

* Remove hardcoded paths in benchmarks

* Delete unused function in benches

* lint

---------

Co-authored-by: Michael Sproul <michael@sigmaprime.io>

* Test hdiff binary format stability (#6585)

* Merge remote-tracking branch 'origin/unstable' into tree-states-archive

* Add deprecation warning for SPRP

* Update xdelta to get rid of duplicate deps

* Document test
2024-11-18 01:51:44 +00:00
Age Manning
e31ac508d4 Modularize tracing executor and metrics rename (#6424)
* Tracing executor and metrics rename

* Appease clippy

* Merge branch 'unstable' into modularise-task-executor
2024-10-28 09:41:45 +00:00
Eitan Seri-Levi
a94b12b4d5 Persist light client bootstrap (#5915)
* persist light client updates

* update beacon chain to serve light client updates

* resolve todos

* cache best update

* extend cache parts

* is better light client update

* resolve merge conflict

* initial api changes

* add lc update db column

* fmt

* added tests

* add sim

* Merge branch 'unstable' of https://github.com/sigp/lighthouse into persist-light-client-updates

* fix some weird issues with the simulator

* tests

* Merge branch 'unstable' of https://github.com/sigp/lighthouse into persist-light-client-updates

* test changes

* merge conflict

* testing

* started work on ef tests and some code clean up

* update tests

* linting

* noop pre altair, were still failing on electra though

* allow for zeroed light client header

* Merge branch 'unstable' of https://github.com/sigp/lighthouse into persist-light-client-updates

* merge unstable

* remove unwraps

* remove unwraps

* fetch bootstrap without always querying for state

* storing bootstrap parts in db

* mroe code cleanup

* test

* prune sync committee branches from dropped chains

* Update light_client_update.rs

* merge unstable

* move functionality to helper methods

* refactor is best update fn

* refactor is best update fn

* improve organization of light client server cache logic

* fork diget calc, and only spawn as many blcoks as we need for the lc update test

* resovle merge conflict

* add electra bootstrap logic, add logic to cache current sync committee

* add latest sync committe branch cache

* fetch lc update from the cache if it exists

* fmt

* Fix beacon_chain tests

* Add debug code to update ranking_order ef test

* Fix compare code

* merge conflicts

* merge conflict

* add better error messaging

* resolve merge conflicts

* remove lc update from basicsim

* rename sync comittte variable and fix persist condition

* refactor get_light_client_update logic

* add better comments, return helpful error messages over http and rpc

* pruning canonical non checkpoint slots

* fix test

* rerun test

* update pruning logic, add tests

* fix tests

* fix imports

* fmt

* refactor db code

* Refactor db method

* Refactor db method

* add additional comments

* Merge branch 'unstable' of https://github.com/sigp/lighthouse into persist-light-client-bootstrap

* fix merge

* linting

* merge conflict

* prevent overflow

* enable lc server for http api tests

* fix tests

* remove prints

* remove warning

* revert change
2024-09-10 00:27:49 +00:00
Jimmy Chen
96b00ef66c Replace lazy_static! with LazyLock (#6189)
* Replace `lazy_static` with `LazyLock`.

* Merge branch 'unstable' into remove-lazy-static

# Conflicts:
#	beacon_node/lighthouse_network/src/peer_manager/mod.rs

* Lint fixes.

* Merge branch 'unstable' into remove-lazy-static

# Conflicts:
#	beacon_node/beacon_chain/src/metrics.rs

* Moar lint fixes.

* Update rust version to 1.80.0.

* Merge branch 'unstable' into remove-lazy-static
2024-07-29 11:42:31 +00:00
Akihito Nakano
6f05863007 Remove unused dependencies (#5812)
* Remove unused dependencies from lighthouse_network

* Remove unused dependencies from gossipsub

* Remove unused dependencies from network

* Remove unused dependencies from consensus/types

* Remove unused dependencies from account_manager

* Remove unused dependencies from boot_node

* Remove unused dependencies from database_manager

* Remove unused dependencies from validator_manager

* Remove unused dependencies from testing/ef_tests

* Remove unused dependencies from testing/simulator

* Remove unused dependencies from testing/execution_engine_integration

* Remove unused dependencies from common/system_health

* Remove unused dependencies from common/eth2

* Remove unused dependencies from common/lighthouse_metrics

* Remove unused dependencies from common/eth2_network_config

* Remove unused dependencies from common/logging

* Remove unused dependencies from watch

* Remove unused dependencies from slasher

* Remove unused dependencies from lighthouse

* Remove unused dependencies from lcli

* Remove unused dependencies from beacon_node

* Remove unused dependencies from beacon_node/builder_client

* Remove unused dependencies from beacon_node/beacon_processor

* Remove unused dependencies from beacon_node/execution_layer

* Remove unused dependencies from beacon_node/eth1

* Remove unused dependencies from beacon_node/client

* Remove unused dependencies from beacon_node/store

* Fix missing deps which is used only for testing
2024-05-27 07:59:07 +00:00
Michael Sproul
61962898e2 In-memory tree states (#5533)
* Consensus changes

* EF tests

* lcli

* common and watch

* account manager

* cargo

* fork choice

* promise cache

* beacon chain

* interop genesis

* http api

* lighthouse

* op pool

* beacon chain misc

* parallel state cache

* store

* fix issues in store

* IT COMPILES

* Remove some unnecessary module qualification

* Revert Arced pubkey optimization (#5536)

* Merge remote-tracking branch 'origin/unstable' into tree-states-memory

* Fix caching, rebasing and some tests

* Remove unused deps

* Merge remote-tracking branch 'origin/unstable' into tree-states-memory

* Small cleanups

* Revert shuffling cache/promise cache changes

* Fix state advance bugs

* Fix shuffling tests

* Remove some resolved FIXMEs

* Remove StateProcessingStrategy

* Optimise withdrawals calculation

* Don't reorg if state cache is missed

* Remove inconsistent state func

* Fix beta compiler

* Rebase early, rebase often

* Fix state caching behaviour

* Update to milhouse release

* Fix on-disk consensus context format

* Merge remote-tracking branch 'origin/unstable' into tree-states-memory

* Squashed commit of the following:

commit 3a16649023
Author: Michael Sproul <michael@sigmaprime.io>
Date:   Thu Apr 18 14:26:09 2024 +1000

    Fix on-disk consensus context format

* Keep indexed attestations, thanks Sean

* Merge branch 'on-disk-consensus-context' into tree-states-memory

* Merge branch 'unstable' into tree-states-memory

* Address half of Sean's review

* More simplifications from Sean's review

* Cache state after get_advanced_hot_state
2024-04-24 01:22:36 +00:00
realbigsean
4555e33048 Remove serde derive references (#4830)
* remove remaining uses of serde_derive

* fix lockfile

---------

Co-authored-by: João Oliveira <hello@jxs.pt>
2023-10-11 13:01:30 -04:00
João Oliveira
dcd69dfc62 Move dependencies to workspace (#4650)
## Issue Addressed

Synchronize dependencies and edition on the workspace `Cargo.toml`

## Proposed Changes

with https://github.com/rust-lang/cargo/issues/8415 merged it's now possible to synchronize details on the workspace `Cargo.toml` like the metadata and dependencies.
By only having dependencies that are shared between multiple crates aligned on the workspace `Cargo.toml` it's easier to not miss duplicate versions of the same dependency and therefore ease on the compile times.

## Additional Info
this PR also removes the no longer required direct dependency of the `serde_derive` crate.

should be reviewed after https://github.com/sigp/lighthouse/pull/4639 get's merged.
closes https://github.com/sigp/lighthouse/issues/4651


Co-authored-by: Michael Sproul <michael@sigmaprime.io>
Co-authored-by: Michael Sproul <micsproul@gmail.com>
2023-09-22 04:30:56 +00:00
Michael Sproul
299cfe1fe6 Switch default slasher backend to LMDB (#4360)
## Issue Addressed

Closes #4354
Closes #3987

Replaces #4305, #4283

## Proposed Changes

This switches the default slasher backend _back_ to LMDB.

If an MDBX database exists and the MDBX backend is enabled then MDBX will continue to be used. Our release binaries and Docker images will continue to include MDBX for as long as it is practical, so users of these should not notice any difference.

The main benefit is to users compiling from source and devs running tests. These users no longer have to struggle to compile MDBX and deal with the compatibility issues that arises. Similarly, devs don't need to worry about toggling feature flags in tests or risk forgetting to run the slasher tests due to backend issues.
2023-06-07 01:50:33 +00:00
Michael Sproul
c11638c36c Split common crates out into their own repos (#3890)
## Proposed Changes

Split out several crates which now exist in separate repos under `sigp`.

- [`ssz` and `ssz_derive`](https://github.com/sigp/ethereum_ssz)
- [`tree_hash` and `tree_hash_derive`](https://github.com/sigp/tree_hash)
- [`ethereum_hashing`](https://github.com/sigp/ethereum_hashing)
- [`ethereum_serde_utils`](https://github.com/sigp/ethereum_serde_utils)
- [`ssz_types`](https://github.com/sigp/ssz_types)

For the published crates see: https://crates.io/teams/github:sigp:crates-io?sort=recent-updates.

## Additional Info

- [x] Need to work out how to handle versioning. I was hoping to do 1.0 versions of several crates, but if they depend on `ethereum-types 0.x` that is not going to work. EDIT: decided to go with 0.5.x versions.
- [x] Need to port several changes from `tree-states`, `capella`, `eip4844` branches to the external repos.
2023-04-28 01:15:40 +00:00
ethDreamer
52c1055fdc Remove withdrawals-processing feature (#3864)
* Use spec to Determine Supported Engine APIs

* Remove `withdrawals-processing` feature

* Fixed Tests

* Missed Some Spots

* Fixed Another Test

* Stupid Clippy
2023-01-12 15:15:08 +11:00
Mark Mackey
b75ca74222 Removed withdrawals feature flag 2022-12-19 15:38:46 -06:00
realbigsean
fc0b06a039 Feature gate withdrawals (#3684)
* start feature gating

* feature gate withdrawals
2022-11-04 16:50:26 -04:00
realbigsean
c45b809b76 Cleanup payload types (#3675)
* Add transparent support

* Add `Config` struct

* Deprecate `enum_behaviour`

* Partially remove enum_behaviour from project

* Revert "Partially remove enum_behaviour from project"

This reverts commit 46ffb7fe77.

* Revert "Deprecate `enum_behaviour`"

This reverts commit 89b64a6f53.

* Add `struct_behaviour`

* Tidy

* Move tests into `ssz_derive`

* Bump ssz derive

* Fix comment

* newtype transaparent ssz

* use ssz transparent and create macros for  per fork implementations

* use superstruct map macros

Co-authored-by: Paul Hauner <paul@paulhauner.com>
2022-11-02 10:30:41 -04:00
Michael Sproul
4d0122444b Update and consolidate dependencies (#3136)
## Proposed Changes

I did some gardening 🌳 in our dependency tree:

- Remove duplicate versions of `warp` (git vs patch)
- Remove duplicate versions of lots of small deps: `cpufeatures`, `ethabi`, `ethereum-types`, `bitvec`, `nix`, `libsecp256k1`.
- Update MDBX (should resolve #3028). I tested and Lighthouse compiles on Windows 11 now.
- Restore `psutil` back to upstream
- Make some progress updating everything to rand 0.8. There are a few crates stuck on 0.7.

Hopefully this puts us on a better footing for future `cargo audit` issues, and improves compile times slightly.

## Additional Info

Some crates are held back by issues with `zeroize`. libp2p-noise depends on [`chacha20poly1305`](https://crates.io/crates/chacha20poly1305) which depends on zeroize < v1.5, and we can only have one version of zeroize because it's post 1.0 (see https://github.com/rust-lang/cargo/issues/6584). The latest version of `zeroize` is v1.5.4, which is used by the new versions of many other crates (e.g. `num-bigint-dig`). Once a new version of chacha20poly1305 is released we can update libp2p-noise and upgrade everything to the latest `zeroize` version.

I've also opened a PR to `blst` related to zeroize: https://github.com/supranational/blst/pull/111
2022-04-04 00:26:16 +00:00
Michael Sproul
41e7a07c51 Add lighthouse db command (#3129)
## Proposed Changes

Add a `lighthouse db` command with three initial subcommands:

- `lighthouse db version`: print the database schema version.
- `lighthouse db migrate --to N`: manually upgrade (or downgrade!) the database to a different version.
- `lighthouse db inspect --column C`: log the key and size in bytes of every value in a given `DBColumn`.

This PR lays the groundwork for other changes, namely:

- Mark's fast-deposit sync (https://github.com/sigp/lighthouse/pull/2915), for which I think we should implement a database downgrade (from v9 to v8).
- My `tree-states` work, which already implements a downgrade (v10 to v8).
- Standalone purge commands like `lighthouse db purge-dht` per https://github.com/sigp/lighthouse/issues/2824.

## Additional Info

I updated the `strum` crate to 0.24.0, which necessitated some changes in the network code to remove calls to deprecated methods.

Thanks to @winksaville for the motivation, and implementation work that I used as a source of inspiration (https://github.com/sigp/lighthouse/pull/2685).
2022-04-01 00:58:59 +00:00
Michael Sproul
5e1f8a8480 Update to Rust 1.59 and 2021 edition (#3038)
## Proposed Changes

Lots of lint updates related to `flat_map`, `unwrap_or_else` and string patterns. I did a little more creative refactoring in the op pool, but otherwise followed Clippy's suggestions.

## Additional Info

We need this PR to unblock CI.
2022-02-25 00:10:17 +00:00
Age Manning
81c667b58e Additional networking metrics (#2549)
Adds additional metrics for network monitoring and evaluation.


Co-authored-by: Mark Mackey <mark@sigmaprime.io>
2021-12-22 06:17:14 +00:00
Paul Hauner
82a81524e3 Bump crate versions (#2829) 2021-12-02 14:29:57 +11:00
Mac L
fe75a0a9a1 Add background file logging (#2762)
## Issue Addressed

Closes #1996 

## Proposed Changes

Run a second `Logger` via `sloggers` which logs to a file in the background with:
- separate `debug-level` for background and terminal logging
- the ability to limit log size
- rotation through a customizable number of log files
- an option to compress old log files (`.gz` format)

Add the following new CLI flags:
- `--logfile-debug-level`: The debug level of the log files
- `--logfile-max-size`: The maximum size of each log file
- `--logfile-max-number`: The number of old log files to store
- `--logfile-compress`: Whether to compress old log files

By default background logging uses the `debug` log level and saves logfiles to:
- Beacon Node:  `$HOME/.lighthouse/$network/beacon/logs/beacon.log`
- Validator Client:  `$HOME/.lighthouse/$network/validators/logs/validator.log`

Or, when using the `--datadir` flag:
`$datadir/beacon/logs/beacon.log` and `$datadir/validators/logs/validator.log`

Once rotated, old logs are stored like so: `beacon.log.1`, `beacon.log.2` etc. 
> Note: `beacon.log.1` is always newer than `beacon.log.2`.

## Additional Info

Currently the default value of `--logfile-max-size` is 200 (MB) and `--logfile-max-number` is 5.
This means that the maximum storage space that the logs will take up by default is 1.2GB. 
(200MB x 5 from old log files + <200MB the current logfile being written to)
Happy to adjust these default values to whatever people think is appropriate. 

It's also worth noting that when logging to a file, we lose our custom `slog` formatting. This means the logfile logs look like this:
```
Oct 27 16:02:50.305 INFO Lighthouse started, version: Lighthouse/v2.0.1-8edd9d4+, module: lighthouse:413
Oct 27 16:02:50.305 INFO Configured for network, name: prater, module: lighthouse:414
```
2021-11-30 03:25:32 +00:00
Squirrel
db4d72c4f1 Remove unused deps (#2592)
Found some deps you're possibly not using.

Please shout if you think they are indeed still needed.
2021-09-30 04:31:42 +00:00
Paul Hauner
fe52322088 Implement SSZ union type (#2579)
## Issue Addressed

NA

## Proposed Changes

Implements the "union" type from the SSZ spec for `ssz`, `ssz_derive`, `tree_hash` and `tree_hash_derive` so it may be derived for `enums`:

https://github.com/ethereum/consensus-specs/blob/v1.1.0-beta.3/ssz/simple-serialize.md#union

The union type is required for the merge, since the `Transaction` type is defined as a single-variant union `Union[OpaqueTransaction]`.

### Crate Updates

This PR will (hopefully) cause CI to publish new versions for the following crates:

- `eth2_ssz_derive`: `0.2.1` -> `0.3.0`
- `eth2_ssz`: `0.3.0` -> `0.4.0`
- `eth2_ssz_types`: `0.2.0` -> `0.2.1`
- `tree_hash`: `0.3.0` -> `0.4.0`
- `tree_hash_derive`: `0.3.0` -> `0.4.0`

These these crates depend on each other, I've had to add a workspace-level `[patch]` for these crates. A follow-up PR will need to remove this patch, ones the new versions are published.

### Union Behaviors

We already had SSZ `Encode` and `TreeHash` derive for enums, however it just did a "transparent" pass-through of the inner value. Since the "union" decoding from the spec is in conflict with the transparent method, I've required that all `enum` have exactly one of the following enum-level attributes:

#### SSZ

-  `#[ssz(enum_behaviour = "union")]`
    - matches the spec used for the merge
-  `#[ssz(enum_behaviour = "transparent")]`
    - maintains existing functionality
    - not supported for `Decode` (never was)
    
#### TreeHash

-  `#[tree_hash(enum_behaviour = "union")]`
    - matches the spec used for the merge
-  `#[tree_hash(enum_behaviour = "transparent")]`
    - maintains existing functionality

This means that we can maintain the existing transparent behaviour, but all existing users will get a compile-time error until they explicitly opt-in to being transparent.

### Legacy Option Encoding

Before this PR, we already had a union-esque encoding for `Option<T>`. However, this was with the *old* SSZ spec where the union selector was 4 bytes. During merge specification, the spec was changed to use 1 byte for the selector.

Whilst the 4-byte `Option` encoding was never used in the spec, we used it in our database. Writing a migrate script for all occurrences of `Option` in the database would be painful, especially since it's used in the `CommitteeCache`. To avoid the migrate script, I added a serde-esque `#[ssz(with = "module")]` field-level attribute to `ssz_derive` so that we can opt into the 4-byte encoding on a field-by-field basis.

The `ssz::legacy::four_byte_impl!` macro allows a one-liner to define the module required for the `#[ssz(with = "module")]` for some `Option<T> where T: Encode + Decode`.

Notably, **I have removed `Encode` and `Decode` impls for `Option`**. I've done this to force a break on downstream users. Like I mentioned, `Option` isn't used in the spec so I don't think it'll be *that* annoying. I think it's nicer than quietly having two different union implementations or quietly breaking the existing `Option` impl.

### Crate Publish Ordering

I've modified the order in which CI publishes crates to ensure that we don't publish a crate without ensuring we already published a crate that it depends upon.

## TODO

- [ ] Queue a follow-up `[patch]`-removing PR.
2021-09-25 05:58:36 +00:00
Wink Saville
4755d4b236 Update sloggers to v2.0.2 (#2588)
fixes #2584
2021-09-14 06:48:26 +00:00
realbigsean
50321c6671 Updates to make crates publishable (#2472)
## Issue Addressed

Related to: #2259

Made an attempt at all the necessary updates here to publish the crates to crates.io. I incremented the minor versions on all the crates that have been previously published. We still might run into some issues as we try to publish because I'm not able to test this out but I think it's a good starting point.

## Proposed Changes

- Add description and license to `ssz_types` and `serde_util`
- rename `serde_util` to `eth2_serde_util`
- increment minor versions
- remove path dependencies
- remove patch dependencies 

## Additional Info
Crates published: 

- [x] `tree_hash` -- need to publish `tree_hash_derive` and `eth2_hashing` first
- [x] `eth2_ssz_types` -- need to publish `eth2_serde_util` first
- [x] `tree_hash_derive`
- [x] `eth2_ssz`
- [x] `eth2_ssz_derive`
- [x] `eth2_serde_util`
- [x] `eth2_hashing`


Co-authored-by: realbigsean <seananderson33@gmail.com>
2021-09-03 01:10:25 +00:00
Michael Sproul
b4689e20c6 Altair consensus changes and refactors (#2279)
## Proposed Changes

Implement the consensus changes necessary for the upcoming Altair hard fork.

## Additional Info

This is quite a heavy refactor, with pivotal types like the `BeaconState` and `BeaconBlock` changing from structs to enums. This ripples through the whole codebase with field accesses changing to methods, e.g. `state.slot` => `state.slot()`.


Co-authored-by: realbigsean <seananderson33@gmail.com>
2021-07-09 06:15:32 +00:00
Michael Sproul
1312844f29 Disable snappy in LevelDB to fix build issues (#1983)
## Proposed Changes

A user on Discord reported build issues when trying to compile Lighthouse checked out to a path with spaces in it. I've fixed the issue upstream in `leveldb-sys` (https://github.com/skade/leveldb-sys/pull/22), but rather than waiting for a new release of the `leveldb` crate, we can also work around the issue by disabling Snappy in LevelDB, which we weren't using anyway.

This may also have the side-effect of slightly improving compilation times, as LevelDB+Snappy was found to be a substantial contributor to build time (although I'm not sure how much was LevelDB and how much was Snappy).
2020-11-27 03:01:57 +00:00
Michael Sproul
5828ff1204 Implement slasher (#1567)
This is an implementation of a slasher that lives inside the BN and can be enabled via `lighthouse bn --slasher`.

Features included in this PR:

- [x] Detection of attester slashing conditions (double votes, surrounds existing, surrounded by existing)
- [x] Integration into Lighthouse's attestation verification flow
- [x] Detection of proposer slashing conditions
- [x] Extraction of attestations from blocks as they are verified
- [x] Compression of chunks
- [x] Configurable history length
- [x] Pruning of old attestations and blocks
- [x] More tests

Future work:

* Focus on a slice of history separate from the most recent N epochs (e.g. epochs `current - K` to `current - M`)
* Run out-of-process
* Ingest attestations from the chain without a resync

Design notes are here https://hackmd.io/@sproul/HJSEklmPL
2020-11-23 03:43:22 +00:00
Paul Hauner
ee7c8a0b7e Update external deps (#1711)
## 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
2020-10-05 08:22:19 +00:00
Michael Sproul
5d17eb899f Update LevelDB to v0.8.6, removing patch (#1636)
Removes our dependency on a fork of LevelDB now that https://github.com/skade/leveldb-sys/pull/17 is merged
2020-09-21 11:53:53 +00:00
Age Manning
09a615b2c0 Lighthouse crate v0.2.0 bump (#1450)
## Description

This PR marks Lighthouse v0.2.0. 

This release marks the stable version of Lighthouse, ready for the approaching Medalla testnet.
2020-08-06 03:43:05 +00:00
Paul Hauner
25cd91ce26 Update deps (#1322)
* Run cargo update

* Upgrade prometheus

* Update hex

* Upgrade parking-lot

* Upgrade num-bigint

* Upgrade sha2

* Update dockerfile Rust version

* Run cargo update
2020-07-06 11:55:56 +10:00
Adam Szkoda
9db0c28051 Make key value storage abstractions more accurate (#1267)
* Layer do_atomically() abstractions properly

* Reduce allocs and DRY get_key_for_col()

* Parameterize HotColdDB with hot and cold item stores

* -impl Store for MemoryStore

* Replace Store uses with HotColdDB

* Ditch Store trait

* cargo fmt

* Style fix

* Readd missing dep that broke the build
2020-06-16 11:34:04 +10:00
Michael Sproul
7818447fd2 Check for unused deps in CI (#1262)
* Check for unused deps in CI

* Bump slashing protection parking_lot version
2020-06-14 10:59:50 +10:00
Paul Hauner
d9d00cc05d Update lru, leveldb. Run cargo update (#1249)
* Update lru, leveldb. Run cargo update

* Add cmake to docker image

* Move cmake dep in dockerfile
2020-06-06 16:39:42 +10:00
Paul Hauner
4331834003 Directory Restructure (#1163)
* Move tests -> testing

* Directory restructure

* Update Cargo.toml during restructure

* Update Makefile during restructure

* Fix arbitrary path
2020-05-18 21:24:23 +10:00
Paul Hauner
90b3953dda v0.1.2 (#1155)
* Version downgrade

* Start updating docs and version tags

Co-authored-by: Age Manning <Age@AgeManning.com>
2020-05-18 15:05:23 +10:00
Age Manning
b6408805a2 Stable futures (#879)
* Port eth1 lib to use stable futures

* Port eth1_test_rig to stable futures

* Port eth1 tests to stable futures

* Port genesis service to stable futures

* Port genesis tests to stable futures

* Port beacon_chain to stable futures

* Port lcli to stable futures

* Fix eth1_test_rig (#1014)

* Fix lcli

* Port timer to stable futures

* Fix timer

* Port websocket_server to stable futures

* Port notifier to stable futures

* Add TODOS

* Update hashmap hashset to stable futures

* Adds panic test to hashset delay

* Port remote_beacon_node to stable futures

* Fix lcli merge conflicts

* Non rpc stuff compiles

* protocol.rs compiles

* Port websockets, timer and notifier to stable futures (#1035)

* Fix lcli

* Port timer to stable futures

* Fix timer

* Port websocket_server to stable futures

* Port notifier to stable futures

* Add TODOS

* Port remote_beacon_node to stable futures

* Partial eth2-libp2p stable future upgrade

* Finished first round of fighting RPC types

* Further progress towards porting eth2-libp2p adds caching to discovery

* Update behaviour

* RPC handler to stable futures

* Update RPC to master libp2p

* Network service additions

* Fix the fallback transport construction (#1102)

* Correct warning

* Remove hashmap delay

* Compiling version of eth2-libp2p

* Update all crates versions

* Fix conversion function and add tests (#1113)

* Port validator_client to stable futures (#1114)

* Add PH & MS slot clock changes

* Account for genesis time

* Add progress on duties refactor

* Add simple is_aggregator bool to val subscription

* Start work on attestation_verification.rs

* Add progress on ObservedAttestations

* Progress with ObservedAttestations

* Fix tests

* Add observed attestations to the beacon chain

* Add attestation observation to processing code

* Add progress on attestation verification

* Add first draft of ObservedAttesters

* Add more tests

* Add observed attesters to beacon chain

* Add observers to attestation processing

* Add more attestation verification

* Create ObservedAggregators map

* Remove commented-out code

* Add observed aggregators into chain

* Add progress

* Finish adding features to attestation verification

* Ensure beacon chain compiles

* Link attn verification into chain

* Integrate new attn verification in chain

* Remove old attestation processing code

* Start trying to fix beacon_chain tests

* Split adding into pools into two functions

* Add aggregation to harness

* Get test harness working again

* Adjust the number of aggregators for test harness

* Fix edge-case in harness

* Integrate new attn processing in network

* Fix compile bug in validator_client

* Update validator API endpoints

* Fix aggreagation in test harness

* Fix enum thing

* Fix attestation observation bug:

* Patch failing API tests

* Start adding comments to attestation verification

* Remove unused attestation field

* Unify "is block known" logic

* Update comments

* Supress fork choice errors for network processing

* Add todos

* Tidy

* Add gossip attn tests

* Disallow test harness to produce old attns

* Comment out in-progress tests

* Partially address pruning tests

* Fix failing store test

* Add aggregate tests

* Add comments about which spec conditions we check

* Dont re-aggregate

* Split apart test harness attn production

* Fix compile error in network

* Make progress on commented-out test

* Fix skipping attestation test

* Add fork choice verification tests

* Tidy attn tests, remove dead code

* Remove some accidentally added code

* Fix clippy lint

* Rename test file

* Add block tests, add cheap block proposer check

* Rename block testing file

* Add observed_block_producers

* Tidy

* Switch around block signature verification

* Finish block testing

* Remove gossip from signature tests

* First pass of self review

* Fix deviation in spec

* Update test spec tags

* Start moving over to hashset

* Finish moving observed attesters to hashmap

* Move aggregation pool over to hashmap

* Make fc attn borrow again

* Fix rest_api compile error

* Fix missing comments

* Fix monster test

* Uncomment increasing slots test

* Address remaining comments

* Remove unsafe, use cfg test

* Remove cfg test flag

* Fix dodgy comment

* Revert "Update hashmap hashset to stable futures"

This reverts commit d432378a3c.

* Revert "Adds panic test to hashset delay"

This reverts commit 281502396f.

* Ported attestation_service

* Ported duties_service

* Ported fork_service

* More ports

* Port block_service

* Minor fixes

* VC compiles

* Update TODOS

* Borrow self where possible

* Ignore aggregates that are already known.

* Unify aggregator modulo logic

* Fix typo in logs

* Refactor validator subscription logic

* Avoid reproducing selection proof

* Skip HTTP call if no subscriptions

* Rename DutyAndState -> DutyAndProof

* Tidy logs

* Print root as dbg

* Fix compile errors in tests

* Fix compile error in test

* Re-Fix attestation and duties service

* Minor fixes

Co-authored-by: Paul Hauner <paul@paulhauner.com>

* Network crate update to stable futures

* Port account_manager to stable futures (#1121)

* Port account_manager to stable futures

* Run async fns in tokio environment

* Port rest_api crate to stable futures (#1118)

* Port rest_api lib to stable futures

* Reduce tokio features

* Update notifier to stable futures

* Builder update

* Further updates

* Convert self referential async functions

* stable futures fixes (#1124)

* Fix eth1 update functions

* Fix genesis and client

* Fix beacon node lib

* Return appropriate runtimes from environment

* Fix test rig

* Refactor eth1 service update

* Upgrade simulator to stable futures

* Lighthouse compiles on stable futures

* Remove println debugging statement

* Update libp2p service, start rpc test upgrade

* Update network crate for new libp2p

* Update tokio::codec to futures_codec (#1128)

* Further work towards RPC corrections

* Correct http timeout and network service select

* Use tokio runtime for libp2p

* Revert "Update tokio::codec to futures_codec (#1128)"

This reverts commit e57aea924a.

* Upgrade RPC libp2p tests

* Upgrade secio fallback test

* Upgrade gossipsub examples

* Clean up RPC protocol

* Test fixes (#1133)

* Correct websocket timeout and run on os thread

* Fix network test

* Clean up PR

* Correct tokio tcp move attestation service tests

* Upgrade attestation service tests

* Correct network test

* Correct genesis test

* Test corrections

* Log info when block is received

* Modify logs and update attester service events

* Stable futures: fixes to vc, eth1 and account manager (#1142)

* Add local testnet scripts

* Remove whiteblock script

* Rename local testnet script

* Move spawns onto handle

* Fix VC panic

* Initial fix to block production issue

* Tidy block producer fix

* Tidy further

* Add local testnet clean script

* Run cargo fmt

* Tidy duties service

* Tidy fork service

* Tidy ForkService

* Tidy AttestationService

* Tidy notifier

* Ensure await is not suppressed in eth1

* Ensure await is not suppressed in account_manager

* Use .ok() instead of .unwrap_or(())

* RPC decoding test for proto

* Update discv5 and eth2-libp2p deps

* Fix lcli double runtime issue (#1144)

* Handle stream termination and dialing peer errors

* Correct peer_info variant types

* Remove unnecessary warnings

* Handle subnet unsubscription removal and improve logigng

* Add logs around ping

* Upgrade discv5 and improve logging

* Handle peer connection status for multiple connections

* Improve network service logging

* Improve logging around peer manager

* Upgrade swarm poll centralise peer management

* Identify clients on error

* Fix `remove_peer` in sync (#1150)

* remove_peer removes from all chains

* Remove logs

* Fix early return from loop

* Improved logging, fix panic

* Partially correct tests

* Stable futures: Vc sync (#1149)

* Improve syncing heuristic

* Add comments

* Use safer method for tolerance

* Fix tests

* Stable futures: Fix VC bug, update agg pool, add more metrics (#1151)

* Expose epoch processing summary

* Expose participation metrics to prometheus

* Switch to f64

* Reduce precision

* Change precision

* Expose observed attesters metrics

* Add metrics for agg/unagg attn counts

* Add metrics for gossip rx

* Add metrics for gossip tx

* Adds ignored attns to prom

* Add attestation timing

* Add timer for aggregation pool sig agg

* Add write lock timer for agg pool

* Add more metrics to agg pool

* Change map lock code

* Add extra metric to agg pool

* Change lock handling in agg pool

* Change .write() to .read()

* Add another agg pool timer

* Fix for is_aggregator

* Fix pruning bug

Co-authored-by: pawan <pawandhananjay@gmail.com>
Co-authored-by: Paul Hauner <paul@paulhauner.com>
2020-05-17 11:16:48 +00:00
Age Manning
95c8e476bc Initial work towards v0.2.0 (#924)
* Remove ping protocol

* Initial renaming of network services

* Correct rebasing relative to latest master

* Start updating types

* Adds HashMapDelay struct to utils

* Initial network restructure

* Network restructure. Adds new types for v0.2.0

* Removes build artefacts

* Shift validation to beacon chain

* Temporarily remove gossip validation

This is to be updated to match current optimisation efforts.

* Adds AggregateAndProof

* Begin rebuilding pubsub encoding/decoding

* Signature hacking

* Shift gossipsup decoding into eth2_libp2p

* Existing EF tests passing with fake_crypto

* Shifts block encoding/decoding into RPC

* Delete outdated API spec

* All release tests passing bar genesis state parsing

* Update and test YamlConfig

* Update to spec v0.10 compatible BLS

* Updates to BLS EF tests

* Add EF test for AggregateVerify

And delete unused hash2curve tests for uncompressed points

* Update EF tests to v0.10.1

* Use optional block root correctly in block proc

* Use genesis fork in deposit domain. All tests pass

* Fast aggregate verify test

* Update REST API docs

* Fix unused import

* Bump spec tags to v0.10.1

* Add `seconds_per_eth1_block` to chainspec

* Update to timestamp based eth1 voting scheme

* Return None from `get_votes_to_consider` if block cache is empty

* Handle overflows in `is_candidate_block`

* Revert to failing tests

* Fix eth1 data sets test

* Choose default vote according to spec

* Fix collect_valid_votes tests

* Fix `get_votes_to_consider` to choose all eligible blocks

* Uncomment winning_vote tests

* Add comments; remove unused code

* Reduce seconds_per_eth1_block for simulation

* Addressed review comments

* Add test for default vote case

* Fix logs

* Remove unused functions

* Meter default eth1 votes

* Fix comments

* Progress on attestation service

* Address review comments; remove unused dependency

* Initial work on removing libp2p lock

* Add LRU caches to store (rollup)

* Update attestation validation for DB changes (WIP)

* Initial version of should_forward_block

* Scaffold

* Progress on attestation validation

Also, consolidate prod+testing slot clocks so that they share much
of the same implementation and can both handle sub-slot time changes.

* Removes lock from libp2p service

* Completed network lock removal

* Finish(?) attestation processing

* Correct network termination future

* Add slot check to block check

* Correct fmt issues

* Remove Drop implementation for network service

* Add first attempt at attestation proc. re-write

* Add version 2 of attestation processing

* Minor fixes

* Add validator pubkey cache

* Make get_indexed_attestation take a committee

* Link signature processing into new attn verification

* First working version

* Ensure pubkey cache is updated

* Add more metrics, slight optimizations

* Clone committee cache during attestation processing

* Update shuffling cache during block processing

* Remove old commented-out code

* Fix shuffling cache insert bug

* Used indexed attestation in fork choice

* Restructure attn processing, add metrics

* Add more detailed metrics

* Tidy, fix failing tests

* Fix failing tests, tidy

* Address reviewers suggestions

* Disable/delete two outdated tests

* Modification of validator for subscriptions

* Add slot signing to validator client

* Further progress on validation subscription

* Adds necessary validator subscription functionality

* Add new Pubkeys struct to signature_sets

* Refactor with functional approach

* Update beacon chain

* Clean up validator <-> beacon node http types

* Add aggregator status to ValidatorDuty

* Impl Clone for manual slot clock

* Fix minor errors

* Further progress validator client subscription

* Initial subscription and aggregation handling

* Remove decompressed member from pubkey bytes

* Progress to modifying val client for attestation aggregation

* First draft of validator client upgrade for aggregate attestations

* Add hashmap for indices lookup

* Add state cache, remove store cache

* Only build the head committee cache

* Removes lock on a network channel

* Partially implement beacon node subscription http api

* Correct compilation issues

* Change `get_attesting_indices` to use Vec

* Fix failing test

* Partial implementation of timer

* Adds timer, removes exit_future, http api to op pool

* Partial multiple aggregate attestation handling

* Permits bulk messages accross gossipsub network channel

* Correct compile issues

* Improve gosispsub messaging and correct rest api helpers

* Added global gossipsub subscriptions

* Update validator subscriptions data structs

* Tidy

* Re-structure validator subscriptions

* Initial handling of subscriptions

* Re-structure network service

* Add pubkey cache persistence file

* Add more comments

* Integrate persistence file into builder

* Add pubkey cache tests

* Add HashSetDelay and introduce into attestation service

* Handles validator subscriptions

* Add data_dir to beacon chain builder

* Remove Option in pubkey cache persistence file

* Ensure consistency between datadir/data_dir

* Fix failing network test

* Peer subnet discovery gets queued for future subscriptions

* Reorganise attestation service functions

* Initial wiring of attestation service

* First draft of attestation service timing logic

* Correct minor typos

* Tidy

* Fix todos

* Improve tests

* Add PeerInfo to connected peers mapping

* Fix compile error

* Fix compile error from merge

* Split up block processing metrics

* Tidy

* Refactor get_pubkey_from_state

* Remove commented-out code

* Rename state_cache -> checkpoint_cache

* Rename Checkpoint -> Snapshot

* Tidy, add comments

* Tidy up find_head function

* Change some checkpoint -> snapshot

* Add tests

* Expose max_len

* Remove dead code

* Tidy

* Fix bug

* Add sync-speed metric

* Add first attempt at VerifiableBlock

* Start integrating into beacon chain

* Integrate VerifiableBlock

* Rename VerifableBlock -> PartialBlockVerification

* Add start of typed methods

* Add progress

* Add further progress

* Rename structs

* Add full block verification to block_processing.rs

* Further beacon chain integration

* Update checks for gossip

* Add todo

* Start adding segement verification

* Add passing chain segement test

* Initial integration with batch sync

* Minor changes

* Tidy, add more error checking

* Start adding chain_segment tests

* Finish invalid signature tests

* Include single and gossip verified blocks in tests

* Add gossip verification tests

* Start adding docs

* Finish adding comments to block_processing.rs

* Rename block_processing.rs -> block_verification

* Start removing old block processing code

* Fixes beacon_chain compilation

* Fix project-wide compile errors

* Remove old code

* Correct code to pass all tests

* Fix bug with beacon proposer index

* Fix shim for BlockProcessingError

* Only process one epoch at a time

* Fix loop in chain segment processing

* Correct tests from master merge

* Add caching for state.eth1_data_votes

* Add BeaconChain::validator_pubkey

* Revert "Add caching for state.eth1_data_votes"

This reverts commit cd73dcd643.

Co-authored-by: Grant Wuerker <gwuerker@gmail.com>
Co-authored-by: Michael Sproul <michael@sigmaprime.io>
Co-authored-by: Michael Sproul <micsproul@gmail.com>
Co-authored-by: pawan <pawandhananjay@gmail.com>
Co-authored-by: Paul Hauner <paul@paulhauner.com>
2020-03-17 17:24:44 +11:00
Michael Sproul
e0b9fa599f Add LRU cache to database (#837)
* Add LRU caches to store

* Improvements to LRU caches

* Take state by value in `Store::put_state`

* Store blocks by value, configurable cache sizes

* Use a StateBatch to efficiently store skip states

* Fix store tests

* Add CloneConfig test, remove unused metrics

* Use Mutexes instead of RwLocks for LRU caches
2020-02-10 11:30:21 +11:00
Michael Sproul
f36a5a15d6 Store states efficiently in the hot database (#746)
* Sparse hot DB and block root tree

* Fix store_tests

* Ensure loads of hot states on boundaries are fast

* Milder error for unaligned finalized blocks
2020-01-08 13:58:01 +11:00
Paul Hauner
75efed305c Faster BeaconState enc/dec (#671)
* Add state enc/dec benches

* Add example for flamegraph

* Use `PublicKeyBytes` for `Validator`

* Ripple PublicKeyBytes change through codebase

* Add benches, optimizations to store BeaconState

* Store BeaconState in StorageContainer too

* Optimize StorageContainer with std::mem magic

* Fix rest_api tests
2019-12-06 16:44:03 +11:00
Michael Sproul
d0319320ce Improve freezer DB efficiency with periodic restore points (#649)
* Draft of checkpoint freezer DB

* Fix bugs

* Adjust root iterators for checkpoint database

* Fix freezer state lookups with no slot hint

* Fix split comment

* Use "restore point" to refer to frozen states

* Resolve some FIXMEs

* Configurable slots per restore point

* Document new freezer DB functions

* Fix up StoreConfig

* Fix new test for merge

* Document SPRP default CLI flag, clarify tests
2019-12-06 14:29:06 +11:00