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Fix unstable peers and slowness in sync (#9967)

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* Don't sync all peers after each response

* Update formating

* Fix tests: add `continue_sync` to `Sync_step`

* Update ethcore/sync/src/chain/mod.rs

Co-Authored-By: ngotchac <ngotchac@gmail.com>
This commit is contained in:
Nicolas Gotchac
2018-11-28 12:19:35 +01:00
committed by Afri Schoedon
parent 0e94ac0111
commit 5e9dc185a5
4 changed files with 35 additions and 34 deletions
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2
ethcore/sync/src/chain/handler.rs
View File

@@ -97,8 +97,6 @@ impl SyncHandler {
sync.sync_peer(io, peer, false);
},
}
// give tasks to other peers
sync.continue_sync(io);
}
/// Called when peer sends us new consensus packet

46
ethcore/sync/src/chain/mod.rs
View File

@@ -866,37 +866,35 @@ impl ChainSync {
}
/// Resume downloading
fn continue_sync(&mut self, io: &mut SyncIo) {
// Collect active peers that can sync
let confirmed_peers: Vec<(PeerId, u8)> = self.peers.iter().filter_map(|(peer_id, peer)|
if peer.can_sync() {
Some((*peer_id, peer.protocol_version))
} else {
None
}
).collect();
trace!(
target: "sync",
"Syncing with peers: {} active, {} confirmed, {} total",
self.active_peers.len(), confirmed_peers.len(), self.peers.len()
);
pub fn continue_sync(&mut self, io: &mut SyncIo) {
if self.state == SyncState::Waiting {
trace!(target: "sync", "Waiting for the block queue");
} else if self.state == SyncState::SnapshotWaiting {
trace!(target: "sync", "Waiting for the snapshot restoration");
} else {
let mut peers: Vec<(PeerId, u8)> = confirmed_peers.iter().filter(|&&(peer_id, _)|
self.active_peers.contains(&peer_id)
).map(|v| *v).collect();
// Collect active peers that can sync
let mut peers: Vec<(PeerId, u8)> = self.peers.iter().filter_map(|(peer_id, peer)|
if peer.can_sync() && peer.asking == PeerAsking::Nothing && self.active_peers.contains(&peer_id) {
Some((*peer_id, peer.protocol_version))
} else {
None
}
).collect();
random::new().shuffle(&mut peers); //TODO: sort by rating
// prefer peers with higher protocol version
peers.sort_by(|&(_, ref v1), &(_, ref v2)| v1.cmp(v2));
if peers.len() > 0 {
trace!(
target: "sync",
"Syncing with peers: {} active, {} available, {} total",
self.active_peers.len(), peers.len(), self.peers.len()
);
for (peer_id, _) in peers {
self.sync_peer(io, peer_id, false);
random::new().shuffle(&mut peers); // TODO (#646): sort by rating
// prefer peers with higher protocol version
peers.sort_by(|&(_, ref v1), &(_, ref v2)| v1.cmp(v2));
for (peer_id, _) in peers {
self.sync_peer(io, peer_id, false);
}
}
}