Commit Graph

66 Commits

Author SHA1 Message Date
Emilia Hane
09370e70d9 Fix rebase conflicts 2023-02-10 09:41:19 +01:00
realbigsean
cbd09dc281 finish refactor 2023-01-21 04:48:25 -05:00
realbigsean
8a70d80a2f Revert "Revert "renames, remove , wrap BlockWrapper enum to make descontruction private""
This reverts commit 1931a442dc.
2022-12-28 10:31:18 -05:00
realbigsean
1931a442dc Revert "renames, remove , wrap BlockWrapper enum to make descontruction private"
This reverts commit 5b3b34a9d7.
2022-12-28 10:30:36 -05:00
realbigsean
5b3b34a9d7 renames, remove , wrap BlockWrapper enum to make descontruction private 2022-12-28 10:28:45 -05:00
Divma
240854750c cleanup: remove unused imports, unusued fields (#3834) 2022-12-23 17:16:10 -05:00
realbigsean
33d01a7911 miscelaneous fixes on syncing, rpc and responding to peer's sync related requests (#3827)
- there was a bug in responding range blob requests where we would incorrectly label the first slot of an epoch as a non-skipped slot if it were skipped. this bug did not exist in the code for responding to block range request because the logic error was mitigated by defensive coding elsewhere
- there was a bug where a block received during range sync without a corresponding blob (and vice versa) was incorrectly interpreted as a stream termination
- RPC size limit fixes.
- Our blob cache was dead locking so I removed use of it for now.
- Because of our change in finalized sync batch size from 2 to 1 and our transition to using exact epoch boundaries for batches (rather than one slot past the epoch boundary), we need to sync finalized sync to 2 epochs + 1 slot past our peer's finalized slot in order to finalize the chain locally.
- use fork context bytes in rpc methods on both the server and client side
2022-12-21 15:50:51 -05:00
realbigsean
2157d91b43 process single block and blob 2022-11-30 11:51:18 -05:00
Divma
bf5005244e Blob syncing (#24)
* add a rt is_blob_batch

* use the mixed type everywhere

* glue

* more glue

* minor fixes

* fix range tests

* filling in the gaps

* moore filling in the gaps
2022-11-24 07:45:38 -05:00
Divma
8c69d57c2c Pause sync when EE is offline (#3428)
## Issue Addressed

#3032

## Proposed Changes

Pause sync when ee is offline. Changes include three main parts:
- Online/offline notification system
- Pause sync
- Resume sync

#### Online/offline notification system
- The engine state is now guarded behind a new struct `State` that ensures every change is correctly notified. Notifications are only sent if the state changes. The new `State` is behind a `RwLock` (as before) as the synchronization mechanism.
- The actual notification channel is a [tokio::sync::watch](https://docs.rs/tokio/latest/tokio/sync/watch/index.html) which ensures only the last value is in the receiver channel. This way we don't need to worry about message order etc.
- Sync waits for state changes concurrently with normal messages.

#### Pause Sync
Sync has four components, pausing is done differently in each:
- **Block lookups**: Disabled while in this state. We drop current requests and don't search for new blocks. Block lookups are infrequent and I don't think it's worth the extra logic of keeping these and delaying processing. If we later see that this is required, we can add it.
- **Parent lookups**: Disabled while in this state. We drop current requests and don't search for new parents. Parent lookups are even less frequent and I don't think it's worth the extra logic of keeping these and delaying processing. If we later see that this is required, we can add it.
- **Range**: Chains don't send batches for processing to the beacon processor. This is easily done by guarding the channel to the beacon processor and giving it access only if the ee is responsive. I find this the simplest and most powerful approach since we don't need to deal with new sync states and chain segments that are added while the ee is offline will follow the same logic without needing to synchronize a shared state among those. Another advantage of passive pause vs active pause is that we can still keep track of active advertised chain segments so that on resume we don't need to re-evaluate all our peers.
- **Backfill**: Not affected by ee states, we don't pause.

#### Resume Sync
- **Block lookups**: Enabled again.
- **Parent lookups**: Enabled again.
- **Range**: Active resume. Since the only real pause range does is not sending batches for processing, resume makes all chains that are holding read-for-processing batches send them.
- **Backfill**: Not affected by ee states, no need to resume.

## Additional Info

**QUESTION**: Originally I made this to notify and change on synced state, but @pawanjay176 on talks with @paulhauner concluded we only need to check online/offline states. The upcheck function mentions extra checks to have a very up to date sync status to aid the networking stack. However, the only need the networking stack would have is this one. I added a TODO to review if the extra check can be removed

Next gen of #3094

Will work best with #3439 

Co-authored-by: Pawan Dhananjay <pawandhananjay@gmail.com>
2022-08-24 23:34:56 +00:00
Divma
f4ffa9e0b4 Handle processing results of non faulty batches (#3439)
## Issue Addressed
Solves #3390 

So after checking some logs @pawanjay176 got, we conclude that this happened because we blacklisted a chain after trying it "too much". Now here, in all occurrences it seems that "too much" means we got too many download failures. This happened very slowly, exactly because the batch is allowed to stay alive for very long times after not counting penalties when the ee is offline. The error here then was not that the batch failed because of offline ee errors, but that we blacklisted a chain because of download errors, which we can't pin on the chain but on the peer. This PR fixes that.

## Proposed Changes

Adds a missing piece of logic so that if a chain fails for errors that can't be attributed to an objectively bad behavior from the peer, it is not blacklisted. The issue at hand occurred when new peers arrived claiming a head that had wrongfully blacklisted, even if the original peers participating in the chain were not penalized.

Another notable change is that we need to consider a batch invalid if it processed correctly but its next non empty batch fails processing. Now since a batch can fail processing in non empty ways, there is no need to mark as invalid previous batches.

Improves some logging as well.

## Additional Info

We should do this regardless of pausing sync on ee offline/unsynced state. This is because I think it's almost impossible to ensure a processing result will reach in a predictable order with a synced notification from the ee. Doing this handles what I think are inevitable data races when we actually pause sync

This also fixes a return that reports which batch failed and caused us some confusion checking the logs
2022-08-12 00:56:38 +00:00
realbigsean
20ebf1f3c1 Realized unrealized experimentation (#3322)
## Issue Addressed

Add a flag that optionally enables unrealized vote tracking.  Would like to test out on testnets and benchmark differences in methods of vote tracking. This PR includes a DB schema upgrade to enable to new vote tracking style.


Co-authored-by: realbigsean <sean@sigmaprime.io>
Co-authored-by: Paul Hauner <paul@paulhauner.com>
Co-authored-by: sean <seananderson33@gmail.com>
Co-authored-by: Mac L <mjladson@pm.me>
2022-07-25 23:53:26 +00:00
Paul Hauner
be4e261e74 Use async code when interacting with EL (#3244)
## Overview

This rather extensive PR achieves two primary goals:

1. Uses the finalized/justified checkpoints of fork choice (FC), rather than that of the head state.
2. Refactors fork choice, block production and block processing to `async` functions.

Additionally, it achieves:

- Concurrent forkchoice updates to the EL and cache pruning after a new head is selected.
- Concurrent "block packing" (attestations, etc) and execution payload retrieval during block production.
- Concurrent per-block-processing and execution payload verification during block processing.
- The `Arc`-ification of `SignedBeaconBlock` during block processing (it's never mutated, so why not?):
    - I had to do this to deal with sending blocks into spawned tasks.
    - Previously we were cloning the beacon block at least 2 times during each block processing, these clones are either removed or turned into cheaper `Arc` clones.
    - We were also `Box`-ing and un-`Box`-ing beacon blocks as they moved throughout the networking crate. This is not a big deal, but it's nice to avoid shifting things between the stack and heap.
    - Avoids cloning *all the blocks* in *every chain segment* during sync.
    - It also has the potential to clean up our code where we need to pass an *owned* block around so we can send it back in the case of an error (I didn't do much of this, my PR is already big enough 😅)
- The `BeaconChain::HeadSafetyStatus` struct was removed. It was an old relic from prior merge specs.

For motivation for this change, see https://github.com/sigp/lighthouse/pull/3244#issuecomment-1160963273

## Changes to `canonical_head` and `fork_choice`

Previously, the `BeaconChain` had two separate fields:

```
canonical_head: RwLock<Snapshot>,
fork_choice: RwLock<BeaconForkChoice>
```

Now, we have grouped these values under a single struct:

```
canonical_head: CanonicalHead {
  cached_head: RwLock<Arc<Snapshot>>,
  fork_choice: RwLock<BeaconForkChoice>
} 
```

Apart from ergonomics, the only *actual* change here is wrapping the canonical head snapshot in an `Arc`. This means that we no longer need to hold the `cached_head` (`canonical_head`, in old terms) lock when we want to pull some values from it. This was done to avoid deadlock risks by preventing functions from acquiring (and holding) the `cached_head` and `fork_choice` locks simultaneously.

## Breaking Changes

### The `state` (root) field in the `finalized_checkpoint` SSE event

Consider the scenario where epoch `n` is just finalized, but `start_slot(n)` is skipped. There are two state roots we might in the `finalized_checkpoint` SSE event:

1. The state root of the finalized block, which is `get_block(finalized_checkpoint.root).state_root`.
4. The state root at slot of `start_slot(n)`, which would be the state from (1), but "skipped forward" through any skip slots.

Previously, Lighthouse would choose (2). However, we can see that when [Teku generates that event](de2b2801c8/data/beaconrestapi/src/main/java/tech/pegasys/teku/beaconrestapi/handlers/v1/events/EventSubscriptionManager.java (L171-L182)) it uses [`getStateRootFromBlockRoot`](de2b2801c8/data/provider/src/main/java/tech/pegasys/teku/api/ChainDataProvider.java (L336-L341)) which uses (1).

I have switched Lighthouse from (2) to (1). I think it's a somewhat arbitrary choice between the two, where (1) is easier to compute and is consistent with Teku.

## Notes for Reviewers

I've renamed `BeaconChain::fork_choice` to `BeaconChain::recompute_head`. Doing this helped ensure I broke all previous uses of fork choice and I also find it more descriptive. It describes an action and can't be confused with trying to get a reference to the `ForkChoice` struct.

I've changed the ordering of SSE events when a block is received. It used to be `[block, finalized, head]` and now it's `[block, head, finalized]`. It was easier this way and I don't think we were making any promises about SSE event ordering so it's not "breaking".

I've made it so fork choice will run when it's first constructed. I did this because I wanted to have a cached version of the last call to `get_head`. Ensuring `get_head` has been run *at least once* means that the cached values doesn't need to wrapped in an `Option`. This was fairly simple, it just involved passing a `slot` to the constructor so it knows *when* it's being run. When loading a fork choice from the store and a slot clock isn't handy I've just used the `slot` that was saved in the `fork_choice_store`. That seems like it would be a faithful representation of the slot when we saved it.

I added the `genesis_time: u64` to the `BeaconChain`. It's small, constant and nice to have around.

Since we're using FC for the fin/just checkpoints, we no longer get the `0x00..00` roots at genesis. You can see I had to remove a work-around in `ef-tests` here: b56be3bc2. I can't find any reason why this would be an issue, if anything I think it'll be better since the genesis-alias has caught us out a few times (0x00..00 isn't actually a real root). Edit: I did find a case where the `network` expected the 0x00..00 alias and patched it here: 3f26ac3e2.

You'll notice a lot of changes in tests. Generally, tests should be functionally equivalent. Here are the things creating the most diff-noise in tests:
- Changing tests to be `tokio::async` tests.
- Adding `.await` to fork choice, block processing and block production functions.
- Refactor of the `canonical_head` "API" provided by the `BeaconChain`. E.g., `chain.canonical_head.cached_head()` instead of `chain.canonical_head.read()`.
- Wrapping `SignedBeaconBlock` in an `Arc`.
- In the `beacon_chain/tests/block_verification`, we can't use the `lazy_static` `CHAIN_SEGMENT` variable anymore since it's generated with an async function. We just generate it in each test, not so efficient but hopefully insignificant.

I had to disable `rayon` concurrent tests in the `fork_choice` tests. This is because the use of `rayon` and `block_on` was causing a panic.

Co-authored-by: Mac L <mjladson@pm.me>
2022-07-03 05:36:50 +00:00
Pawan Dhananjay
f428719761 Do not penalize peers on execution layer offline errors (#3258)
## Issue Addressed

Partly resolves https://github.com/sigp/lighthouse/issues/3032

## Proposed Changes

Extracts some of the functionality of #3094 into a separate PR as the original PR requires a bit more work.
Do not unnecessarily penalize peers when we fail to validate received execution payloads because our execution layer is offline.
2022-06-19 23:13:40 +00:00
Divma
cfd26d25e0 do not count sync batch attempts when peer is not at fault (#3245)
## Issue Addressed
currently we count a failed attempt for a syncing chain even if the peer is not at fault. This makes us do more work if the chain fails, and heavily penalize peers, when we can simply retry. Inspired by a proposal I made to #3094 

## Proposed Changes
If a batch fails but the peer is not at fault, do not count the attempt
Also removes some annoying logs

## Additional Info
We still get a counter on ignored attempts.. just in case
2022-06-07 02:35:56 +00:00
Michael Sproul
6eaeaa542f Fix Rust 1.61 clippy lints (#3192)
## Issue Addressed

This fixes the low-hanging Clippy lints introduced in Rust 1.61 (due any hour now). It _ignores_ one lint, because fixing it requires a structural refactor of the validator client that needs to be done delicately. I've started on that refactor and will create another PR that can be reviewed in more depth in the coming days. I think we should merge this PR in the meantime to unblock CI.
2022-05-20 05:02:13 +00:00
Divma
788b6af3c4 Remove sync await points (#3036)
## Issue Addressed

Removes the await points in sync waiting for a processor response for rpc block processing. Built on top of #3029 
This also handles a couple of bugs in the previous code and adds a relatively comprehensive test suite.
2022-03-23 01:09:39 +00:00
Divma
4bf1af4e85 Custom RPC request management for sync (#3029)
## Proposed Changes
Make `lighthouse_network` generic over request ids, now usable by sync
2022-03-02 22:07:17 +00:00
Paul Hauner
aaa5344eab Add peer score adjustment msgs (#2901)
## Issue Addressed

N/A

## Proposed Changes

This PR adds the `msg` field to `Peer score adjusted` log messages. These `msg` fields help identify *why* a peer was banned.

Example:

```
Jan 11 04:18:48.096 DEBG Peer score adjusted                     score: -100.00, peer_id: 16Uiu2HAmQskxKWWGYfginwZ51n5uDbhvjHYnvASK7PZ5gBdLmzWj, msg: attn_unknown_head, service: libp2p
Jan 11 04:18:48.096 DEBG Peer score adjusted                     score: -27.86, peer_id: 16Uiu2HAmA7cCb3MemVDbK3MHZoSb7VN3cFUG3vuSZgnGesuVhPDE, msg: sync_past_slot, service: libp2p
Jan 11 04:18:48.096 DEBG Peer score adjusted                     score: -100.00, peer_id: 16Uiu2HAmQskxKWWGYfginwZ51n5uDbhvjHYnvASK7PZ5gBdLmzWj, msg: attn_unknown_head, service: libp2p
Jan 11 04:18:48.096 DEBG Peer score adjusted                     score: -28.86, peer_id: 16Uiu2HAmA7cCb3MemVDbK3MHZoSb7VN3cFUG3vuSZgnGesuVhPDE, msg: sync_past_slot, service: libp2p
Jan 11 04:18:48.096 DEBG Peer score adjusted                     score: -29.86, peer_id: 16Uiu2HAmA7cCb3MemVDbK3MHZoSb7VN3cFUG3vuSZgnGesuVhPDE, msg: sync_past_slot, service: libp2p
```

There is also a `libp2p_report_peer_msgs_total` metrics which allows us to see count of reports per `msg` tag. 

## Additional Info

NA
2022-01-12 05:32:14 +00:00
Paul Hauner
4848e53155 Avoid peer penalties on internal errors for batch block import (#2898)
## Issue Addressed

NA

## Proposed Changes

I've observed some Prater nodes (and potentially some mainnet nodes) banning peers due to validator pubkey cache lock timeouts. For the `BeaconChainError`-type of errors, they're caused by internal faults and we can't necessarily tell if the peer is bad or not. I think this is causing us to ban peers unnecessarily when running on under-resourced machines.

## Additional Info

NA
2022-01-11 05:33:28 +00:00
Age Manning
df40700ddd Rename eth2_libp2p to lighthouse_network (#2702)
## Description

The `eth2_libp2p` crate was originally named and designed to incorporate a simple libp2p integration into lighthouse. Since its origins the crates purpose has expanded dramatically. It now houses a lot more sophistication that is specific to lighthouse and no longer just a libp2p integration. 

As of this writing it currently houses the following high-level lighthouse-specific logic:
- Lighthouse's implementation of the eth2 RPC protocol and specific encodings/decodings
- Integration and handling of ENRs with respect to libp2p and eth2
- Lighthouse's discovery logic, its integration with discv5 and logic about searching and handling peers. 
- Lighthouse's peer manager - This is a large module handling various aspects of Lighthouse's network, such as peer scoring, handling pings and metadata, connection maintenance and recording, etc.
- Lighthouse's peer database - This is a collection of information stored for each individual peer which is specific to lighthouse. We store connection state, sync state, last seen ips and scores etc. The data stored for each peer is designed for various elements of the lighthouse code base such as syncing and the http api.
- Gossipsub scoring - This stores a collection of gossipsub 1.1 scoring mechanisms that are continuously analyssed and updated based on the ethereum 2 networks and how Lighthouse performs on these networks.
- Lighthouse specific types for managing gossipsub topics, sync status and ENR fields
- Lighthouse's network HTTP API metrics - A collection of metrics for lighthouse network monitoring
- Lighthouse's custom configuration of all networking protocols, RPC, gossipsub, discovery, identify and libp2p. 

Therefore it makes sense to rename the crate to be more akin to its current purposes, simply that it manages the majority of Lighthouse's network stack. This PR renames this crate to `lighthouse_network`

Co-authored-by: Paul Hauner <paul@paulhauner.com>
2021-10-19 00:30:39 +00:00
Michael Sproul
9667dc2f03 Implement checkpoint sync (#2244)
## Issue Addressed

Closes #1891
Closes #1784

## Proposed Changes

Implement checkpoint sync for Lighthouse, enabling it to start from a weak subjectivity checkpoint.

## Additional Info

- [x] Return unavailable status for out-of-range blocks requested by peers (#2561)
- [x] Implement sync daemon for fetching historical blocks (#2561)
- [x] Verify chain hashes (either in `historical_blocks.rs` or the calling module)
- [x] Consistency check for initial block + state
- [x] Fetch the initial state and block from a beacon node HTTP endpoint
- [x] Don't crash fetching beacon states by slot from the API
- [x] Background service for state reconstruction, triggered by CLI flag or API call.

Considered out of scope for this PR:

- Drop the requirement to provide the `--checkpoint-block` (this would require some pretty heavy refactoring of block verification)


Co-authored-by: Diva M <divma@protonmail.com>
2021-09-22 00:37:28 +00:00
realbigsean
b84ff9f793 rust 1.53.0 updates (#2411)
## Issue Addressed

`make lint` failing on rust 1.53.0.

## Proposed Changes

1.53.0 updates

## Additional Info

I haven't figure out why yet, we were now hitting the recursion limit in a few crates. So I had to add `#![recursion_limit = "256"]` in a few places


Co-authored-by: realbigsean <seananderson33@gmail.com>
Co-authored-by: Michael Sproul <michael@sigmaprime.io>
2021-06-18 05:58:01 +00:00
Paul Hauner
a764c3b247 Handle early blocks (#2155)
## Issue Addressed

NA

## Problem this PR addresses

There's an issue where Lighthouse is banning a lot of peers due to the following sequence of events:

1. Gossip block 0xabc arrives ~200ms early
    - It is propagated across the network, with respect to [`MAXIMUM_GOSSIP_CLOCK_DISPARITY`](https://github.com/ethereum/eth2.0-specs/blob/v1.0.0/specs/phase0/p2p-interface.md#why-is-there-maximum_gossip_clock_disparity-when-validating-slot-ranges-of-messages-in-gossip-subnets).
    - However, it is not imported to our database since the block is early.
2. Attestations for 0xabc arrive, but the block was not imported.
    - The peer that sent the attestation is down-voted.
        - Each unknown-block attestation causes a score loss of 1, the peer is banned at -100.
        - When the peer is on an attestation subnet there can be hundreds of attestations, so the peer is banned quickly (before the missed block can be obtained via rpc).

## Potential solutions

I can think of three solutions to this:

1. Wait for attestation-queuing (#635) to arrive and solve this.
    - Easy
    - Not immediate fix.
    - Whilst this would work, I don't think it's a perfect solution for this particular issue, rather (3) is better.
1. Allow importing blocks with a tolerance of `MAXIMUM_GOSSIP_CLOCK_DISPARITY`.
    - Easy
    - ~~I have implemented this, for now.~~
1. If a block is verified for gossip propagation (i.e., signature verified) and it's within `MAXIMUM_GOSSIP_CLOCK_DISPARITY`, then queue it to be processed at the start of the appropriate slot.
    - More difficult
    - Feels like the best solution, I will try to implement this.
    
    
**This PR takes approach (3).**

## Changes included

- Implement the `block_delay_queue`, based upon a [`DelayQueue`](https://docs.rs/tokio-util/0.6.3/tokio_util/time/delay_queue/struct.DelayQueue.html) which can store blocks until it's time to import them.
- Add a new `DelayedImportBlock` variant to the `beacon_processor::WorkEvent` enum to handle this new event.
- In the `BeaconProcessor`, refactor a `tokio::select!` to a struct with an explicit `Stream` implementation. I experienced some issues with `tokio::select!` in the block delay queue and I also found it hard to debug. I think this explicit implementation is nicer and functionally equivalent (apart from the fact that `tokio::select!` randomly chooses futures to poll, whereas now we're deterministic).
- Add a testing framework to the `beacon_processor` module that tests this new block delay logic. I also tested a handful of other operations in the beacon processor (attns, slashings, exits) since it was super easy to copy-pasta the code from the `http_api` tester.
    - To implement these tests I added the concept of an optional `work_journal_tx` to the `BeaconProcessor` which will spit out a log of events. I used this in the tests to ensure that things were happening as I expect.
    - The tests are a little racey, but it's hard to avoid that when testing timing-based code. If we see CI failures I can revise. I haven't observed *any* failures due to races on my machine or on CI yet.
    - To assist with testing I allowed for directly setting the time on the `ManualSlotClock`.
- I gave the `beacon_processor::Worker` a `Toolbox` for two reasons; (a) it avoids changing tons of function sigs when you want to pass a new object to the worker and (b) it seemed cute.
2021-02-24 03:08:52 +00:00
Lion - dapplion
613382f304 Add slot offset computing to be downloaded slot (#2198)
The current implementation assumes the range offset of slots downloaded on a batch to equal zero. This conflicts with the condition to consider this chain as sync. For finalized sync, it results in one extra batch being downloaded which can't be processed.

CC @wemeetagain
2021-02-18 08:24:46 +00:00
realbigsean
7a71977987 Clippy 1.49.0 updates and dht persistence test fix (#2156)
## Issue Addressed

`test_dht_persistence` failing

## Proposed Changes

Bind `NetworkService::start` to an underscore prefixed variable rather than `_`.  `_` was causing it to be dropped immediately

This was failing 5/100 times before this update, but I haven't been able to get it to fail after updating it

Co-authored-by: realbigsean <seananderson33@gmail.com>
2021-01-19 00:34:28 +00:00
Age Manning
2931b05582 Update libp2p (#2101)
This is a little bit of a tip-of-the-iceberg PR. It houses a lot of code changes in the libp2p dependency. 

This needs a bit of thorough testing before merging. 

The primary code changes are:
- General libp2p dependency update
- Gossipsub refactor to shift compression into gossipsub providing performance improvements and improved API for handling compression



Co-authored-by: Paul Hauner <paul@paulhauner.com>
2020-12-23 07:53:36 +00:00
divma
8fcd22992c No string in slog (#2017)
## Issue Addressed

Following slog's documentation, this should help a bit with string allocations. I left it run for two days and mem usage is lower. This is of course anecdotal, but shouldn't harm anyway 

## Proposed Changes

remove `String` creation in logs when possible
2020-11-30 10:33:00 +00:00
divma
6f890c398e Sync Bug fixes (#1950)
## Issue Addressed

Two issues related to empty batches
- Chain target's was not being advanced when the batch was successful, empty and the chain didn't have an optimistic batch
- Not switching finalized chains. We now switch finalized chains requiring a minimum work first
2020-11-24 02:11:31 +00:00
divma
d0cbf3111a move sync state to the chains KV (#1940)
## 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
2020-11-22 23:58:23 +00:00
divma
6c0c050fbb Tweak head syncing (#1845)
## 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
2020-11-01 23:37:39 +00:00
divma
9f45ac2f5e More sync edge cases + prettify range (#1834)
## 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
2020-10-29 02:29:24 +00:00
Age Manning
ae96dab5d2 Increase UPnP logging and decrease batch sizes (#1812)
## 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.
2020-10-23 03:01:33 +00:00
divma
2acf75785c More sync updates (#1791)
## 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
2020-10-20 22:34:18 +00:00
Paul Hauner
da44821e39 Clean up obsolete TODOs (#1734)
Squashed commit of the following:

commit f99373cbae
Author: Age Manning <Age@AgeManning.com>
Date:   Mon Oct 5 18:44:09 2020 +1100

    Clean up obsolute TODOs
2020-10-05 21:08:14 +11:00
divma
113758a4f5 From panic to crit (#1726)
## 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>
2020-10-05 17:34:49 +11:00
divma
6997776494 Sync fixes (#1716)
## 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
2020-10-05 17:33:36 +11:00
divma
b8013b7b2c Super Silky Smooth Syncs, like a Sir (#1628)
## Issue Addressed
In principle.. closes #1551 but in general are improvements for performance, maintainability and readability. The logic for the optimistic sync in actually simple

## Proposed Changes
There are miscellaneous things here:
- Remove unnecessary `BatchProcessResult::Partial` to simplify the batch validation logic
- Make batches a state machine. This is done to ensure batch state transitions respect our logic (this was previously done by moving batches between `Vec`s) and to ease the cognitive load of the `SyncingChain` struct
- Move most batch-related logic to the batch
- Remove `PendingBatches` in favor of a map of peers to their batches. This is to avoid duplicating peers inside the chain (peer_pool and pending_batches)
- Add `must_use` decoration to the `ProcessingResult` so that chains that request to be removed are handled accordingly. This also means that chains are now removed in more places than before to account for unhandled cases
- Store batches in a sorted map (`BTreeMap`) access is not O(1) but since the number of _active_ batches is bounded this should be fast, and saves performing hashing ops. Batches are indexed by the epoch they start. Sorted, to easily handle chain advancements (range logic)
- Produce the chain Id from the identifying fields: target root and target slot. This, to guarantee there can't be duplicated chains and be able to consistently search chains by either Id or checkpoint
- Fix chain_id not being present in all chain loggers
- Handle mega-edge case where the processor's work queue is full and the batch can't be sent. In this case the chain would lose the blocks, remain in a "syncing" state and waiting for a result that won't arrive, effectively stalling sync.
- When a batch imports blocks or the chain starts syncing with a local finalized epoch greater that the chain's start epoch, the chain is advanced instead of reset. This is to avoid losing download progress and validate batches faster. This also means that the old `start_epoch` now means "current first unvalidated batch", so it represents more accurately the progress of the chain.
- Batch status peers from the same chain to reduce Arc access.
- Handle a couple of cases where the retry counters for a batch were not updated/checked are now handled via the batch state machine. Basically now if we forget to do it, we will know.
- Do not send back the blocks from the processor to the batch. Instead register the attempt before sending the blocks (does not count as failed)
- When re-requesting a batch, try to avoid not only the last failed peer, but all previous failed peers.
- Optimize requesting batches ahead in the buffer by shuffling idle peers just once (this is just addressing a couple of old TODOs in the code)
- In chain_collection, store chains by their id in a map
- Include a mapping from request_ids to (chain, batch) that requested the batch to avoid the double O(n) search on block responses
- Other stuff:
  - impl `slog::KV` for batches
  - impl `slog::KV` for syncing chains
  - PSA: when logging, we can use `%thing` if `thing` implements `Display`. Same for `?` and `Debug`

### Optimistic syncing:
Try first the batch that contains the current head, if the batch imports any block, advance the chain. If not, if this optimistic batch is inside the current processing window leave it there for future use, if not drop it. The tolerance for this block is the same for downloading, but just once for processing



Co-authored-by: Age Manning <Age@AgeManning.com>
2020-09-23 06:29:55 +00:00
Age Manning
cc44a64d15 Limit parallelism of head chain sync (#1527)
## Description

Currently lighthouse load-balances across peers a single finalized chain. The chain is selected via the most peers. Once synced to the latest finalized epoch Lighthouse creates chains amongst its peers and syncs them all in parallel amongst each peer (grouped by their current head block). 

This is typically fast and relatively efficient under normal operations. However if the chain has not finalized in a long time, the head chains can grow quite long. Peer's head chains will update every slot as new blocks are added to the head. Syncing all head chains in parallel is a bottleneck and highly inefficient in block duplication leads to RPC timeouts when attempting to handle all new heads chains at once. 

This PR limits the parallelism of head syncing chains to 2. We now sync at most two head chains at a time. This allows for the possiblity of sync progressing alongside a peer being slow and holding up one chain via RPC timeouts.
2020-08-18 02:49:24 +00:00
divma
46dbf027af Do not reset batch ids & redownload out of range batches (#1528)
The changes are somewhat simple but should solve two issues:
- When quickly changing between chains once and a second time back again, batchIds would collide and cause havoc. 
- If we got an out of range response from a peer, sync would remain in syncing but without advancing

Changes:
- remove the batch id. Identify each batch (inside a chain) by its starting epoch. Target epochs for downloading and processing now advance by EPOCHS_PER_BATCH
- for the same reason, move the "to_be_downloaded_id" to be an epoch
- remove a sneaky line that dropped an out of range batch without downloading it
- bonus: put the chain_id in the log given to the chain. This is why explicitly logging the chain_id is removed
2020-08-18 01:29:51 +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
Age Manning
f634f073a8 Correct issue with network message passing (#1439)
## Issue Addressed

Sync was breaking occasionally. The root cause appears to be identify crashing as events we being sent to the protocol after nodes were banned. Have not been able to reproduce sync issues since this update. 

## Proposed Changes

Only send messages to sub-behaviour protocols if the peer manager thinks the peer is connected. All other messages are dropped.
2020-08-03 09:35:53 +00:00
Age Manning
a37e75f44b Downgrade sync and rpc warn logs (#1417)
* Downgrade sycn and rpc warn logs

* Correct warning
2020-07-30 13:52:44 +10:00
Age Manning
395d99ce03 Sync update (#1412)
## Issue Addressed

Recurring sync loop and invalid batch downloading

## Proposed Changes

Shifts the batches to include the first slot of each epoch. This ensures the finalized is always downloaded once a chain has completed syncing. 

Also add in logic to prevent re-dialing disconnected peers. Non-performant peers get disconnected during sync, this prevents re-connection to these during sync. 

## Additional Info

N/A
2020-07-29 05:25:10 +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
Age Manning
5bc8fea2e0 Activate peer scoring (#1284)
* Initial score structure

* Peer manager update

* Updates to dialing

* Correct tests

* Correct typos and remove unused function

* Integrate scoring into the network crate

* Clean warnings

* Formatting

* Shift core functionality into the behaviour

* Temp commit

* Shift disconnections into the behaviour

* Temp commit

* Update libp2p and gossipsub

* Remove gossipsub lru cache

* Correct merge conflicts

* Modify handler and correct tests

* Update enr network globals on socket update

* Apply clippy lints

* Add new prysm fingerprint

* More clippy fixes
2020-07-07 10:13:16 +10:00
divma
0e37a16927 Super tiny RPC refactor (#1187)
* wip: mwake the request id optional

* make the request_id optional

* cleanup

* address clippy lints inside rpc

* WIP: Separate sent RPC events from received ones

* WIP: Separate sent RPC events from received ones

* cleanup

* Separate request ids from substream ids

* Make RPC's message handling independent of RequestIds

* Change behaviour RPC events to be more outside-crate friendly

* Propage changes across the network + router + processor

* Propage changes across the network + router + processor

* fmt

* "tiny" refactor

* more tiny refactors

* fmt eth2-libp2p

* wip: propagating changes

* wip: propagating changes

* cleaning up

* more cleanup

* fmt

* tests HOT fix

Co-authored-by: Age Manning <Age@AgeManning.com>
2020-06-05 13:07:59 +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
divma
fa8154e3da Ensure batches align to epoch boundaries (#1021)
* Ensure batches align to epoch boundaries

* Clean up range_sync logs
2020-04-27 14:18:09 +10:00
Age Manning
79cc9473c1 Sync and multi-client updates (#1044)
* Update finalized/head sync logic

* Correct sync logging

* Handle status during sync gracefully
2020-04-23 19:01:29 +10:00