cerc-io/lighthouse
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Sync corrections (#1034)

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* Correct status re-request logic improve logging

* Prevent multiple dials of the same peer

* Discovery to obey max peers when connecting to new peers
This commit is contained in:
Age Manning 2020-04-22 00:29:19 +10:00 committed by GitHub
parent b88b3ffe40
commit 20b6baf11f
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GPG Key ID: 4AEE18F83AFDEB23
11 changed files with 247 additions and 161 deletions
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@ -1006,13 +1006,13 @@ dependencies = [
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@ -1933,34 +1933,34 @@ dependencies = [
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"checksum parity-codec 3.5.4 (registry+https://github.com/rust-lang/crates.io-index)" = "2b9df1283109f542d8852cd6b30e9341acc2137481eb6157d2e62af68b0afec9"
"checksum parity-multiaddr 0.6.0 (git+https://github.com/SigP/rust-libp2p?rev=8517d93012e9a5cc1d61fbee52c8da59727347ed)" = "<none>"
"checksum parity-multihash 0.2.0 (git+https://github.com/SigP/rust-libp2p?rev=8517d93012e9a5cc1d61fbee52c8da59727347ed)" = "<none>"
"checksum parity-multiaddr 0.6.0 (git+https://github.com/SigP/rust-libp2p?rev=37b7e9349cf3e724da02bbd4b5dd6c054c2d56d3)" = "<none>"
"checksum parity-multihash 0.2.0 (git+https://github.com/SigP/rust-libp2p?rev=37b7e9349cf3e724da02bbd4b5dd6c054c2d56d3)" = "<none>"
"checksum parity-scale-codec 1.3.0 (registry+https://github.com/rust-lang/crates.io-index)" = "329c8f7f4244ddb5c37c103641027a76c530e65e8e4b8240b29f81ea40508b17"
"checksum parity-send-wrapper 0.1.0 (registry+https://github.com/rust-lang/crates.io-index)" = "aa9777aa91b8ad9dd5aaa04a9b6bcb02c7f1deb952fca5a66034d5e63afc5c6f"
"checksum parking_lot 0.10.2 (registry+https://github.com/rust-lang/crates.io-index)" = "d3a704eb390aafdc107b0e392f56a82b668e3a71366993b5340f5833fd62505e"
@ -5466,7 +5466,7 @@ dependencies = [
"checksum rustc-hex 2.1.0 (registry+https://github.com/rust-lang/crates.io-index)" = "3e75f6a532d0fd9f7f13144f392b6ad56a32696bfcd9c78f797f16bbb6f072d6"
"checksum rustc_version 0.2.3 (registry+https://github.com/rust-lang/crates.io-index)" = "138e3e0acb6c9fb258b19b67cb8abd63c00679d2851805ea151465464fe9030a"
"checksum rustls 0.16.0 (registry+https://github.com/rust-lang/crates.io-index)" = "b25a18b1bf7387f0145e7f8324e700805aade3842dd3db2e74e4cdeb4677c09e"
"checksum rw-stream-sink 0.1.2 (git+https://github.com/SigP/rust-libp2p?rev=8517d93012e9a5cc1d61fbee52c8da59727347ed)" = "<none>"
"checksum rw-stream-sink 0.1.2 (git+https://github.com/SigP/rust-libp2p?rev=37b7e9349cf3e724da02bbd4b5dd6c054c2d56d3)" = "<none>"
"checksum ryu 1.0.3 (registry+https://github.com/rust-lang/crates.io-index)" = "535622e6be132bccd223f4bb2b8ac8d53cda3c7a6394944d3b2b33fb974f9d76"
"checksum safemem 0.3.3 (registry+https://github.com/rust-lang/crates.io-index)" = "ef703b7cb59335eae2eb93ceb664c0eb7ea6bf567079d843e09420219668e072"
"checksum same-file 1.0.6 (registry+https://github.com/rust-lang/crates.io-index)" = "93fc1dc3aaa9bfed95e02e6eadabb4baf7e3078b0bd1b4d7b6b0b68378900502"

12
beacon_node/eth2-libp2p/src/discovery/mod.rs
View File

@ -454,11 +454,17 @@ where
for peer_id in closer_peers {
// if we need more peers, attempt a connection
if self.network_globals.connected_peers() < self.max_peers
&& !self.network_globals.peers.read().is_connected(&peer_id)
if self.network_globals.connected_or_dialing_peers()
< self.max_peers
&& !self
.network_globals
.peers
.read()
.is_connected_or_dialing(&peer_id)
&& !self.banned_peers.contains(&peer_id)
{
debug!(self.log, "Peer discovered"; "peer_id"=> format!("{:?}", peer_id));
debug!(self.log, "Connecting to discovered peer"; "peer_id"=> format!("{:?}", peer_id));
self.network_globals.peers.write().dialing_peer(&peer_id);
self.events
.push_back(NetworkBehaviourAction::DialPeer { peer_id });
}

20
beacon_node/eth2-libp2p/src/peer_manager/mod.rs
View File

@ -89,6 +89,7 @@ impl<TSpec: EthSpec> PeerManager<TSpec> {
/// A ping request has been received.
// NOTE: The behaviour responds with a PONG automatically
// TODO: Update last seen
pub fn ping_request(&mut self, peer_id: &PeerId, seq: u64) {
if let Some(peer_info) = self.network_globals.peers.read().peer_info(peer_id) {
// received a ping
@ -114,6 +115,7 @@ impl<TSpec: EthSpec> PeerManager<TSpec> {
}
/// A PONG has been returned from a peer.
// TODO: Update last seen
pub fn pong_response(&mut self, peer_id: &PeerId, seq: u64) {
if let Some(peer_info) = self.network_globals.peers.read().peer_info(peer_id) {
// received a pong
@ -137,6 +139,7 @@ impl<TSpec: EthSpec> PeerManager<TSpec> {
}
/// Received a metadata response from a peer.
// TODO: Update last seen
pub fn meta_data_response(&mut self, peer_id: &PeerId, meta_data: MetaData<TSpec>) {
if let Some(peer_info) = self.network_globals.peers.write().peer_info_mut(peer_id) {
if let Some(known_meta_data) = &peer_info.meta_data {
@ -165,13 +168,16 @@ impl<TSpec: EthSpec> PeerManager<TSpec> {
fn gets_banned(&mut self, peer_id: &PeerId) -> bool {
// if the peer was already banned don't inform again
let mut peerdb = self.network_globals.peers.write();
if let Some(connection_status) = peerdb.connection_status(peer_id) {
if peerdb.reputation(peer_id) < MINIMUM_REPUTATION_BEFORE_BAN
&& !peerdb.connection_status(peer_id).is_banned()
&& !connection_status.is_banned()
{
peerdb.ban(peer_id);
self.events.push(PeerManagerEvent::BanPeer(peer_id.clone()));
return true;
}
}
false
}
@ -269,7 +275,8 @@ impl<TSpec: EthSpec> PeerManager<TSpec> {
{
let mut peerdb = self.network_globals.peers.write();
if peerdb.connection_status(peer_id).is_banned() {
if peerdb.connection_status(peer_id).map(|c| c.is_banned()) == Some(true) {
// don't connect if the peer is banned
return false;
}
@ -293,6 +300,11 @@ impl<TSpec: EthSpec> PeerManager<TSpec> {
true
}
/// Notifies the peer manager that this peer is being dialed.
pub fn _dialing_peer(&mut self, peer_id: &PeerId) {
self.network_globals.peers.write().dialing_peer(peer_id);
}
}
impl<TSpec: EthSpec> Stream for PeerManager<TSpec> {
@ -304,12 +316,14 @@ impl<TSpec: EthSpec> Stream for PeerManager<TSpec> {
while let Async::Ready(Some(peer_id)) = self.ping_peers.poll().map_err(|e| {
error!(self.log, "Failed to check for peers to ping"; "error" => format!("{}",e));
})? {
debug!(self.log, "Pinging peer"; "peer_id" => format!("{}", peer_id));
self.events.push(PeerManagerEvent::Ping(peer_id));
}
while let Async::Ready(Some(peer_id)) = self.ping_peers.poll().map_err(|e| {
while let Async::Ready(Some(peer_id)) = self.status_peers.poll().map_err(|e| {
error!(self.log, "Failed to check for peers to status"; "error" => format!("{}",e));
})? {
debug!(self.log, "Sending Status to peer"; "peer_id" => format!("{}", peer_id));
self.events.push(PeerManagerEvent::Status(peer_id));
}

46
beacon_node/eth2-libp2p/src/peer_manager/peer_info.rs
View File

@ -60,11 +60,12 @@ impl<T: EthSpec> PeerInfo<T> {
}
#[derive(Clone, Debug, Serialize)]
/// The current health status of the peer.
pub enum PeerStatus {
/// The peer is healthy
/// The peer is healthy.
Healthy,
/// The peer is clogged. It has not been responding to requests on time
Clogged,
/// The peer is clogged. It has not been responding to requests on time.
_Clogged,
}
impl Default for PeerStatus {
@ -73,25 +74,29 @@ impl Default for PeerStatus {
}
}
/// Connection Status of the peer
#[derive(Clone, Debug)]
/// Connection Status of the peer.
#[derive(Debug, Clone)]
pub enum PeerConnectionStatus {
/// The peer is connected.
Connected {
/// number of ingoing connections
/// number of ingoing connections.
n_in: u8,
/// number of outgoing connections
/// number of outgoing connections.
n_out: u8,
},
/// The peer has disconnected.
Disconnected {
/// last time the peer was connected or discovered
/// last time the peer was connected or discovered.
since: Instant,
},
/// The peer has been banned and is disconnected.
Banned {
/// moment when the peer was banned
/// moment when the peer was banned.
since: Instant,
},
Unknown {
/// time since we last saw this peer
/// We are currently dialing this peer.
Dialing {
/// time since we last communicated with the peer.
since: Instant,
},
}
@ -116,8 +121,8 @@ impl Serialize for PeerConnectionStatus {
s.serialize_field("since", &since.elapsed().as_secs())?;
s.end()
}
Unknown { since } => {
let mut s = serializer.serialize_struct_variant("", 3, "Unknown", 1)?;
Dialing { since } => {
let mut s = serializer.serialize_struct_variant("", 3, "Dialing", 1)?;
s.serialize_field("since", &since.elapsed().as_secs())?;
s.end()
}
@ -126,6 +131,7 @@ impl Serialize for PeerConnectionStatus {
}
#[derive(Clone, Debug, Serialize)]
/// The current sync status of the peer.
pub enum PeerSyncStatus {
/// At the current state as our node or ahead of us.
Synced {
@ -143,7 +149,7 @@ pub enum PeerSyncStatus {
impl Default for PeerConnectionStatus {
fn default() -> Self {
PeerConnectionStatus::Unknown {
PeerConnectionStatus::Dialing {
since: Instant::now(),
}
}
@ -158,6 +164,14 @@ impl PeerConnectionStatus {
}
}
/// Checks if the status is connected
pub fn is_dialing(&self) -> bool {
match self {
PeerConnectionStatus::Dialing { .. } => true,
_ => false,
}
}
/// Checks if the status is banned
pub fn is_banned(&self) -> bool {
match self {
@ -179,7 +193,7 @@ impl PeerConnectionStatus {
pub fn connect_ingoing(&mut self) {
match self {
Connected { n_in, .. } => *n_in += 1,
Disconnected { .. } | Banned { .. } | Unknown { .. } => {
Disconnected { .. } | Banned { .. } | Dialing { .. } => {
*self = Connected { n_in: 1, n_out: 0 }
}
}
@ -190,7 +204,7 @@ impl PeerConnectionStatus {
pub fn connect_outgoing(&mut self) {
match self {
Connected { n_out, .. } => *n_out += 1,
Disconnected { .. } | Banned { .. } | Unknown { .. } => {
Disconnected { .. } | Banned { .. } | Dialing { .. } => {
*self = Connected { n_in: 0, n_out: 1 }
}
}

49
beacon_node/eth2-libp2p/src/peer_manager/peerdb.rs
View File

@ -3,6 +3,7 @@ use crate::rpc::methods::MetaData;
use crate::PeerId;
use slog::{crit, warn};
use std::collections::HashMap;
use std::time::Instant;
use types::{EthSpec, SubnetId};
/// A peer's reputation.
@ -85,6 +86,16 @@ impl<TSpec: EthSpec> PeerDB<TSpec> {
.map(|(peer_id, _)| peer_id)
}
/// Connected or dialing peers
pub fn connected_or_dialing_peers(&self) -> impl Iterator<Item = &PeerId> {
self.peers
.iter()
.filter(|(_, info)| {
info.connection_status.is_connected() || info.connection_status.is_dialing()
})
.map(|(peer_id, _)| peer_id)
}
/// Gives the `peer_id` of all known connected and synced peers.
pub fn synced_peers(&self) -> impl Iterator<Item = &PeerId> {
self.peers
@ -153,25 +164,47 @@ impl<TSpec: EthSpec> PeerDB<TSpec> {
}
/// Returns the peer's connection status. Returns unknown if the peer is not in the DB.
pub fn connection_status(&self, peer_id: &PeerId) -> PeerConnectionStatus {
pub fn connection_status(&self, peer_id: &PeerId) -> Option<PeerConnectionStatus> {
self.peer_info(peer_id)
.map_or(PeerConnectionStatus::default(), |info| {
info.connection_status.clone()
})
.map(|info| info.connection_status.clone())
}
/// Returns if the peer is already connected.
pub fn is_connected(&self, peer_id: &PeerId) -> bool {
if let PeerConnectionStatus::Connected { .. } = self.connection_status(peer_id) {
if let Some(PeerConnectionStatus::Connected { .. }) = self.connection_status(peer_id) {
true
} else {
false
}
}
/// If we are connected or currently dialing the peer returns true.
pub fn is_connected_or_dialing(&self, peer_id: &PeerId) -> bool {
match self.connection_status(peer_id) {
Some(PeerConnectionStatus::Connected { .. })
| Some(PeerConnectionStatus::Dialing { .. }) => true,
_ => false,
}
}
/* Setters */
/// Sets a peer as connected with an ingoing connection
/// A peer is being dialed.
pub fn dialing_peer(&mut self, peer_id: &PeerId) {
let info = self
.peers
.entry(peer_id.clone())
.or_insert_with(|| Default::default());
if info.connection_status.is_disconnected() {
self.n_dc -= 1;
}
info.connection_status = PeerConnectionStatus::Dialing {
since: Instant::now(),
};
}
/// Sets a peer as connected with an ingoing connection.
pub fn connect_ingoing(&mut self, peer_id: &PeerId) {
let info = self
.peers
@ -184,7 +217,7 @@ impl<TSpec: EthSpec> PeerDB<TSpec> {
info.connection_status.connect_ingoing();
}
/// Sets a peer as connected with an outgoing connection
/// Sets a peer as connected with an outgoing connection.
pub fn connect_outgoing(&mut self, peer_id: &PeerId) {
let info = self
.peers
@ -197,7 +230,7 @@ impl<TSpec: EthSpec> PeerDB<TSpec> {
info.connection_status.connect_outgoing();
}
/// Sets the peer as disconnected
/// Sets the peer as disconnected.
pub fn disconnect(&mut self, peer_id: &PeerId) {
let log_ref = &self.log;
let info = self.peers.entry(peer_id.clone()).or_insert_with(|| {

5
beacon_node/eth2-libp2p/src/service.rs
View File

@ -138,6 +138,11 @@ impl<TSpec: EthSpec> Service<TSpec> {
if let Protocol::Udp(_) = components[1] {
continue;
}
// inform the peer manager that we are currently dialing this peer
network_globals
.peers
.write()
.dialing_peer(&bootnode_enr.peer_id());
dial_addr(multiaddr);
}
}

5
beacon_node/eth2-libp2p/src/types/globals.rs
View File

@ -83,6 +83,11 @@ impl<TSpec: EthSpec> NetworkGlobals<TSpec> {
self.peers.read().connected_peer_ids().count()
}
/// Returns the number of libp2p peers that are either connected or being dialed.
pub fn connected_or_dialing_peers(&self) -> usize {
self.peers.read().connected_or_dialing_peers().count()
}
/// Returns in the node is syncing.
pub fn is_syncing(&self) -> bool {
self.sync_state.read().is_syncing()

4
beacon_node/network/src/router/mod.rs
View File

@ -8,7 +8,7 @@ pub mod processor;
use crate::error;
use crate::service::NetworkMessage;
use beacon_chain::{AttestationType, BeaconChain, BeaconChainTypes};
use beacon_chain::{AttestationType, BeaconChain, BeaconChainTypes, BlockError};
use eth2_libp2p::{
rpc::{RPCError, RPCErrorResponse, RPCRequest, RPCResponse, RequestId, ResponseTermination},
MessageId, NetworkGlobals, PeerId, PubsubMessage, RPCEvent,
@ -268,7 +268,9 @@ impl<T: BeaconChainTypes> Router<T> {
self.propagate_message(id, peer_id.clone());
self.processor.on_block_gossip(peer_id, verified_block);
}
Err(BlockError::ParentUnknown { .. }) => {} // performing a parent lookup
Err(e) => {
// performing a parent lookup
warn!(self.log, "Could not verify block for gossip";
"error" => format!("{:?}", e));
}

3
beacon_node/network/src/router/processor.rs
View File

@ -495,9 +495,10 @@ impl<T: BeaconChainTypes> Processor<T> {
) -> Result<GossipVerifiedBlock<T>, BlockError> {
let result = self.chain.verify_block_for_gossip(*block.clone());
if let Err(BlockError::ParentUnknown(_)) = result {
if let Err(BlockError::ParentUnknown(block_hash)) = result {
// if we don't know the parent, start a parent lookup
// TODO: Modify the return to avoid the block clone.
debug!(self.log, "Unknown block received. Starting a parent lookup"; "block_slot" => block.message.slot, "block_hash" => format!("{}", block_hash));
self.send_to_sync(SyncMessage::UnknownBlock(peer_id.clone(), block));
}
result

1
beacon_node/network/src/service.rs
View File

@ -306,7 +306,6 @@ fn spawn_service<T: BeaconChainTypes>(
.map_err(|_| { debug!(log, "Failed to send peer disconnect to router");})?;
}
BehaviourEvent::StatusPeer(peer_id) => {
debug!(log, "Re-status peer"; "peer_id" => format!("{}", peer_id));
service.router_send
.try_send(RouterMessage::StatusPeer(peer_id))
.map_err(|_| { debug!(log, "Failed to send re-status peer to router");})?;

11
beacon_node/network/src/sync/manager.rs
View File

@ -58,7 +58,7 @@ use types::{EthSpec, Hash256, SignedBeaconBlock, Slot};
/// fully sync'd peer.
const SLOT_IMPORT_TOLERANCE: usize = 20;
/// How many attempts we try to find a parent of a block before we give up trying .
const PARENT_FAIL_TOLERANCE: usize = 3;
const PARENT_FAIL_TOLERANCE: usize = 5;
/// The maximum depth we will search for a parent block. In principle we should have sync'd any
/// canonical chain to its head once the peer connects. A chain should not appear where it's depth
/// is further back than the most recent head slot.
@ -640,9 +640,16 @@ impl<T: BeaconChainTypes> SyncManager<T> {
if parent_request.failed_attempts >= PARENT_FAIL_TOLERANCE
|| parent_request.downloaded_blocks.len() >= PARENT_DEPTH_TOLERANCE
{
let error = if parent_request.failed_attempts >= PARENT_FAIL_TOLERANCE {
"too many failed attempts"
} else {
"reached maximum lookup-depth"
};
debug!(self.log, "Parent import failed";
"block" => format!("{:?}",parent_request.downloaded_blocks[0].canonical_root()),
"ancestors_found" => parent_request.downloaded_blocks.len()
"ancestors_found" => parent_request.downloaded_blocks.len(),
"reason" => error
);
return; // drop the request
}