Commit Graph

78 Commits

Author SHA1 Message Date
Michael Sproul
703c33bdc7 Fix head tracker concurrency bugs (#1771)
## 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.
2020-10-19 05:58:39 +00:00
Paul Hauner
72cc5e35af Bump version to v0.3.0 (#1743)
## Issue Addressed

NA

## Proposed Changes

- Bump version to v0.3.0
- Run `cargo update`

## Additional Info

NA
2020-10-09 02:05:30 +00:00
realbigsean
b69c63d486 Validator dir creation (#1746)
## Issue Addressed

Resolves #1744

## Proposed Changes

- Add `directory::ensure_dir_exists` to the `ValidatorDefinition::open_or_create` method 
- As @pawanjay176 suggested, making the `--validator-dir` non-global so users are forced to include the flag after the `validator` subcommand. Current behavior seems to be ignoring the flag if it comes after something like `validator import`

## Additional Info
N/A
2020-10-08 21:01:32 +00:00
Paul Hauner
a67fa5f4a4 Add zinken testnet (#1741)
## Issue Addressed

- Resolves #1722

## Proposed Changes

This extends @danielschonfeld's work in #1739 with:

- Use an empty boot node list
- Remove the genesis state

## Additional Info

NA


Co-authored-by: Daniel Schonfeld <daniel@schonfeld.org>
2020-10-07 10:10:35 +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
Age Manning
240181e840
Upgrade discovery and restructure task execution (#1693)
* Initial rebase

* Remove old code

* Correct release tests

* Rebase commit

* Remove eth2-testnet dep on eth2libp2p

* Remove crates lost in rebase

* Remove unused dep
2020-10-05 18:45:54 +11:00
Sean
6af3bc9ce2
Add UPnP support for Lighthouse (#1587)
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>
2020-10-03 10:07:47 +10:00
Paul Hauner
6ea3bc5e52 Implement VC API (#1657)
## 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
2020-10-02 09:42:19 +00:00
Paul Hauner
cdec3cec18
Implement standard eth2.0 API (#1569)
- 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>
2020-10-01 11:12:36 +10:00
Pawan Dhananjay
8e20176337
Directory restructure (#1532)
Closes #1487
Closes #1427

Directory restructure in accordance with #1487. Also has temporary migration code to move the old directories into new structure.
Also extracts all default directory names and utility functions into a `directory` crate to avoid repetitio.

~Since `validator_definition.yaml` stores absolute paths, users will have to manually change the keystore paths or delete the file to get the validators picked up by the vc.~. `validator_definition.yaml` is migrated as well from the default directories.

Co-authored-by: realbigsean <seananderson33@gmail.com>
Co-authored-by: Paul Hauner <paul@paulhauner.com>
2020-10-01 11:12:35 +10:00
Age Manning
c0e76d2c15
Version bump and cargo update (#1683) 2020-09-29 18:29:04 +10:00
Age Manning
13cb642f39
Update boot-node and discovery (#1682)
* Improve boot_node and upgrade discovery

* Clippy lints
2020-09-29 18:28:29 +10:00
Age Manning
6c1d7f55bf
Update lh spadina bootnode (#1685) 2020-09-29 18:27:55 +10:00
Age Manning
7bf14908dc Spadina genesis and lighthouse bootnode (#1681)
This adds the Spadina genesis file and a lighthouse bootnode to the Spadina testnet scripts
2020-09-29 02:54:43 +00:00
Paul Hauner
f1180a8947 Prepare for v0.2.12 (#1672)
## Issue Addressed

NA

## Proposed Changes

- Bump versions
- Run cargo update

## Additional Info

NA
2020-09-26 06:35:45 +00:00
Paul Hauner
5688f21bbd Spadina support (v2) (#1670)
## Issue Addressed

Resolves #1651

## Description

This supercedes #1658. Great work was done by @pawanjay176, I just needed to make a change whilst he is away.

See #1658 for a description, prior reviews and approval by @michaelsproul.

## Additional info

Ignores a rustsec advisory. This is tracked in #1669.


Co-authored-by: pawan <pawandhananjay@gmail.com>
2020-09-26 01:58:31 +00:00
realbigsean
1801dd1a34 Interactive account passwords (#1623)
## Issue Addressed

#1437

## Proposed Changes

- Make the `--wallet-password` flag optional and creates an interactive prompt if not provided.
- Make the `--wallet-name` flag optional and creates an interactive prompt if not provided.
- Add a minimum password requirement of a 12 character length.
- Update the `--stdin-passwords` flag to `--stdin-inputs` because we have non-password user inputs 

## Additional Info
2020-09-23 01:19:54 +00:00
Paul Hauner
d85d5a435e Bump to v0.2.11 (#1645)
## Issue Addressed

NA

## Proposed Changes

- Bump version to v0.2.11
- Run `cargo update`.


## Additional Info

NA
2020-09-22 04:45:15 +00:00
Paul Hauner
371e1c1d5d Bump version to v0.2.10 (#1630)
## Issue Addressed

NA

## Proposed Changes

Bump crate version so we can cut a new release with the fix from #1629.

## Additional Info

NA
2020-09-18 06:41:29 +00:00
Daniel Schonfeld
810de2f8b7 Static testnet configs (#1603)
## Issue Addressed

#1431 

## Proposed Changes

Added an archived zip file with required files manually

## Additional Info

1) Used zip, instead of tar.gz to add a single dependency instead of two.
2) I left the download from github code for now, waiting to hear if you'd like it cleaned up or left to be used for some tooling needs.
2020-09-11 01:43:13 +00:00
Paul Hauner
0821e6b39f Bump version to v0.2.9 (#1598)
## Issue Addressed

NA

## Proposed Changes

- Bump version tags
- Run `cargo update`

## Additional Info

NA
2020-09-09 02:28:35 +00:00
realbigsean
9cf8f45192 Mnemonic key recovery (#1579)
## Issue Addressed

N/A

## Proposed Changes

Add a  `lighthouse am wallet recover` command that recreates a wallet from a mnemonic but no validator keys.  Add a `lighthouse am validator recover` command which would directly create keys from a mnemonic for a given index and count.

## Additional Info


Co-authored-by: Paul Hauner <paul@paulhauner.com>
2020-09-08 12:17:51 +00:00
Age Manning
fb9d828e5e Extended Gossipsub metrics (#1577)
## Issue Addressed

N/A

## Proposed Changes

Adds extended metrics to get a better idea of what is happening at the gossipsub layer of lighthouse. This provides information about mesh statistics per topics, subscriptions and peer scores. 

## Additional Info
2020-09-01 06:59:14 +00:00
Paul Hauner
967700c1ff Bump version to v0.2.8 (#1572)
## Issue Addressed

NA

## Proposed Changes

- Bump versions
- Run `cargo update`

## Additional Info

NA
2020-08-27 07:04:12 +00:00
Paul Hauner
dfd02d6179 Bump to v0.2.7 (#1561)
## Issue Addressed

NA

## Proposed Changes

- Update to v0.2.7
- Add script to make update easy.

## Additional Info

NA
2020-08-24 08:25:34 +00:00
Paul Hauner
c895dc8971 Shift HTTP server heavy-lifting to blocking executor (#1518)
## Issue Addressed

NA

## Proposed Changes

Shift practically all HTTP endpoint handlers to the blocking executor (some very light tasks are left on the core executor).

## Additional Info

This PR covers the `rest_api` which will soon be refactored to suit the standard API. As such, I've cut a few corners and left some existing issues open in this patch. What I have done here should leave the API in state that is not necessary *exactly* the same, but good enough for us to run validators with. Specifically, the number of blocking workers that can be spawned is unbounded and I have not implemented a queue; this will need to be fixed when we implement the standard API.
2020-08-24 03:06:10 +00:00
Paul Hauner
ebb25b5569 Bump version to v0.2.6 (#1549)
## Issue Addressed

NA

## Proposed Changes

See title.

## Additional Info

NA
2020-08-19 09:31:01 +00:00
Age Manning
33b2a3d0e0 Version bump to v0.2.5 (#1540)
## Description

Version bumps lighthouse to v0.2.5
2020-08-18 11:23:08 +00:00
Paul Hauner
46dd530476 Allow import of Prysm keystores (#1535)
## Issue Addressed

- Resolves #1361

## Proposed Changes

Loosens the constraints imposed by EIP-2335 so we can import keys from Prysm.

## Additional Info

NA
2020-08-18 06:28:20 +00:00
Age Manning
3bb30754d9 Keep track of failed head chains and prevent re-lookups (#1534)
## Overview

There are forked chains which get referenced by blocks and attestations on a network. Typically if these chains are very long, we stop looking up the chain and downvote the peer. In extreme circumstances, many peers are on many chains, the chains can be very deep and become time consuming performing lookups. 

This PR adds a cache to known failed chain lookups. This prevents us from starting a parent-lookup (or stopping one half way through) if we have attempted the chain lookup in the past.
2020-08-18 03:54:09 +00:00
Paul Hauner
9a97a0b14f Prepare for v0.2.4 (#1533)
## Issue Addressed

NA

## Proposed Changes

NA

## Additional Info

NA
2020-08-17 12:13:42 +00:00
Paul Hauner
f85485884f Process gossip blocks on the GossipProcessor (#1523)
## Issue Addressed

NA

## Proposed Changes

Moves beacon block processing over to the newly-added `GossipProcessor`. This moves the task off the core executor onto the blocking one.

## Additional Info

- With this PR, gossip blocks are being ignored during sync.
2020-08-17 09:20:27 +00:00
Paul Hauner
f4a7311008 Update to v0.2.3 (#1519)
## Issue Addressed

NA

## Proposed Changes

Bump versions to v0.2.3.

## Additional Info

NA
2020-08-14 08:32:31 +00:00
Pawan Dhananjay
e3d45eda1e Log to file without json format (#1485)
## Issue Addressed

N/A

## Proposed Changes

Earlier, to log to a file, the only options were to redirect stdout/stderr to a file or use json logging. 
Redirecting to stdout/stderr works well but causes issues with mistakenly overwriting the file instead of appending which has resulted in loss of precious logs on multiple occasions for me.

Json logging creates a timestamped backup of the file if it already exists, but the json format itself is hugely annoying.

This PR modifies the `--logfile` option to log as it does in the terminal to a logfile.
2020-08-13 07:00:37 +00:00
Paul Hauner
b063df5bf9 Cross-compile to vendored x86_84, aarch64 (Raspberry Pi 4) (#1497)
## Issue Addressed

NA

## Proposed Changes

Adds support for using the [`cross`](https://github.com/rust-embedded/cross) project to produce cross-compiled binaries using Docker images.

Provides quite clean and simple cross-compiles cause all the complexity is hidden in Dockerfiles. It does require you to be in the `docker` group though.

## Details

- Adds shortcut commands to `Makefile`
- Ensures `reqwest` and `discv5` use vendored openssl libs (i.e., static not shared).
- Switches to a [commit](284f705964) of blst that has a renamed C function to avoid a collision with openssl (upstream issue: https://github.com/supranational/blst/issues/21).
- Updates `ring` to the latest satisfiable version, since an earlier version was causing issues with `cross`.
- Off-topic, but adds extra message about Windows support as suggested by Discord user.

## Additional Info

- ~~Blocked on #1495~~
- There are no tests in CI for this yet for a few reasons:
  - I'm hesitant to add more long-running tasks.
  - Short-term bitrot should be avoided since we'll use it each release.
  - In the long term I think it would be good to automate binary creation on a release.
- I observed the binaries increase in size from 50mb to 52mb after these changes.
2020-08-11 05:16:30 +00:00
realbigsean
ec84183e05 Add graffiti cli flag to the validator client. (#1425)
## Issue Addressed

#1419

## Proposed Changes

Creates a `--graffiti` cli flag in the validator client. If the flag is set, it overrides graffiti in the beacon node. 

## Additional Info
2020-08-11 02:16:29 +00:00
Age Manning
134676fd6f Version bump to v0.2.2 (#1496)
Version bump to v0.2.2
2020-08-10 06:49:03 +00:00
Paul Hauner
b354a83faa Upgrade version to v0.2.1 (#1478)
## Issue Addressed

NA

## Proposed Changes

Updates version strings to `v0.2.1`.

## Additional Info

N/A
2020-08-06 14:35:08 +00:00
Age Manning
ee036cba7e Correct version string (#1474)
Corrects the version string to expected result

i.e 
`Lighthouse/v0.2.0-0feb3cf1/aarch64-linux`
2020-08-06 05:34:54 +00:00
Paul Hauner
f26adc0a36 Lighthouse v0.2.0 (Medalla) (#1452)
## Issue Addressed

NA

## Proposed Changes

- Moves the git-based versioning we were doing into the `lighthouse_version` crate in `common`.
- Removes the `beacon_node/version` crate, replacing it with `lighthouse_version`.
- Bumps the version to `v0.2.0`.

## Additional Info

There are now two types of version string:

1. `const VERSION: &str = Lighthouse/v0.2.0-1419501f2+`
1. `version_with_platform() = Lighthouse/v0.2.0-1419501f2+/x86_64-linux`

(1) is handy cause it's a `const` and shorter. (2) has platform info so it's more useful. Note that the plus-sign (`+`) indicates the the git commit is dirty (it used to be `(modified)` but I had to shorten it to fit into graffiti).

These version strings are now included on:

- `lighthouse --version`
- `lcli --version`
- `curl localhost:5052/node/version`
- p2p messages when we communicate our version

You can update the version by changing this constant (version is not related to a `Cargo.toml`):

b9ad7102d5/common/lighthouse_version/src/lib.rs (L4-L15)
2020-08-04 07:44:53 +00:00
Age Manning
31707ccf45 Shift author to sigma prime on some crates (#1440)
Shifts the author to sigma prime on some crates
2020-08-04 02:31:41 +00:00
Paul Hauner
142e033c34 Add Medalla genesis state, more boot enr (#1438)
## Issue Addressed

NA

## Proposed Changes

- Include the Medalla `genesis.ssz` file.
- Adds the boot nodes from here: 27e7e7cc87/medalla/bootnodes.txt

## Additional Info

NA
2020-08-03 07:49:24 +00:00
Paul Hauner
36d3d37cb4 Add support for multiple testnet flags (#1396)
## Issue Addressed

NA

## Proposed Changes

Allows for multiple "hardcoded" testnets.

## Additional Info

This PR is incomplete.

## TODO

- [x] Add flag to CLI, integrate with rest of Lighthouse.


Co-authored-by: Pawan Dhananjay <pawandhananjay@gmail.com>
Co-authored-by: Michael Sproul <michael@sigmaprime.io>
2020-07-29 06:39:29 +00:00
Michael Sproul
f53dedb27d Improve account manager CLI (#1404)
## Proposed Changes

Fixes some sharp edges on the new `lighthouse account validator list` command, and the account manager CLI.

* Validator names/keys are always printed in the same order due to the use of a sorted `BTreeMap`
* The `validator list` subcommand now respects the `--validator-dir` flag, instead of always looking in `~/.lighthouse/validators`
* The `--help` now shows a description for the `wallet` subcommand instead of just `TODO`
2020-07-29 04:32:52 +00:00
Paul Hauner
eaa9f9744f Add EF launchpad import (#1381)
## Issue Addressed

NA

## Proposed Changes

Adds an integration for keys generated via https://github.com/ethereum/eth2.0-deposit (In reality keys are *actually* generated here: https://github.com/ethereum/eth2.0-deposit-cli).

## Additional Info

NA

## TODO

- [x] Docs
- [x] Tests

Co-authored-by: Michael Sproul <michael@sigmaprime.io>
2020-07-29 04:32:50 +00:00
Paul Hauner
5680355b31 Fix naming of validators in CLI (#1332)
## Issue Addressed

NA

## Proposed Changes

- Adds a `lighthouse account validator list` command, to list all known validators.
- Fixes the validator names; previously they were using a full path (e.g., `"/home/paul/.lighthouse/validators/0x8ce25415d078bdc83133758604578ba51707a55965eeca8982f44695db7432d6ff1c23529020a971faa68ab60baf3118"` but now we only use the final directory name (e.g., `0x8ce25415d078bdc83133758604578ba51707a55965eeca8982f44695db7432d6ff1c23529020a971faa68ab60baf3118`).
2020-07-27 01:25:20 +00:00
Paul Hauner
b73c497be2 Support multiple BLS implementations (#1335)
## Issue Addressed

NA

## Proposed Changes

- Refactor the `bls` crate to support multiple BLS "backends" (e.g., milagro, blst, etc).
- Removes some duplicate, unused code in `common/rest_types/src/validator.rs`.
- Removes the old "upgrade legacy keypairs" functionality (these were unencrypted keys that haven't been supported for a few testnets, no one should be using them anymore).

## Additional Info

Most of the files changed are just inconsequential changes to function names.

## TODO

- [x] Optimization levels
- [x] Infinity point: https://github.com/supranational/blst/issues/11
- [x] Ensure milagro *and* blst are tested via CI
- [x] What to do with unsafe code?
- [x] Test infinity point in signature sets
2020-07-25 02:03:18 +00:00
blacktemplar
23a8f31f83 Fix clippy warnings (#1385)
## Issue Addressed

NA

## Proposed Changes

Fixes most clippy warnings and ignores the rest of them, see issue #1388.
2020-07-23 14:18:00 +00:00
Paul Hauner
e26da35cbf Introduce validator definition file for VC (#1357)
## Issue Addressed

NA

## Proposed Changes

- Introduces the `valdiator_definitions.yml` file which serves as an explicit list of validators that should be run by the validator client.
  - Removes `--strict` flag, split into `--strict-lockfiles` and `--disable-auto-discover`  
  - Adds a "Validator Management" page to the book.
- Adds the `common/account_utils` crate which contains some logic that was starting to duplicate across the codebase.

The new docs for this feature are the best description of it (apart from the code, I guess): 9cb87e93ce/book/src/validator-management.md

## API Changes

This change should be transparent for *most* existing users. If the `valdiator_definitions.yml` doesn't exist then it will be automatically generated using a method that will detect all the validators in their `validators_dir`.

Users will have issues if they are:

1. Using `--strict`.
1. Have keystores in their `~/.lighthouse/validators` directory that weren't being detected by the current keystore discovery method.

For users with (1), the VC will refuse to start because the `--strict` flag has been removed. They will be forced to review `--help` and choose an equivalent flag.

For users with (2), this seems fairly unlikely and since we're only in testnets there's no *real* value on the line here. I'm happy to take the risk, it would be a different case for mainnet.

## Additional Info

This PR adds functionality we will need for #1347.

## TODO

- [x] Reconsider flags
- [x] Move doc into a more reasonable chapter.
- [x] Check for compile warnings.
2020-07-22 09:34:55 +00:00
Michael Sproul
20a48df80a
Fix race condition in VC block proposal service (#1282)
Closes #918
Closes #923
2020-07-07 14:03:21 +10:00