mirror of
https://github.com/pezkuwichain/pezkuwi-subxt.git
synced 2026-04-30 20:07:56 +00:00
Approve multiple candidates with a single signature (#1191)
Initial implementation for the plan discussed here: https://github.com/paritytech/polkadot-sdk/issues/701 Built on top of https://github.com/paritytech/polkadot-sdk/pull/1178 v0: https://github.com/paritytech/polkadot/pull/7554, ## Overall idea When approval-voting checks a candidate and is ready to advertise the approval, defer it in a per-relay chain block until we either have MAX_APPROVAL_COALESCE_COUNT candidates to sign or a candidate has stayed MAX_APPROVALS_COALESCE_TICKS in the queue, in both cases we sign what candidates we have available. This should allow us to reduce the number of approvals messages we have to create/send/verify. The parameters are configurable, so we should find some values that balance: - Security of the network: Delaying broadcasting of an approval shouldn't but the finality at risk and to make sure that never happens we won't delay sending a vote if we are past 2/3 from the no-show time. - Scalability of the network: MAX_APPROVAL_COALESCE_COUNT = 1 & MAX_APPROVALS_COALESCE_TICKS =0, is what we have now and we know from the measurements we did on versi, it bottlenecks approval-distribution/approval-voting when increase significantly the number of validators and parachains - Block storage: In case of disputes we have to import this votes on chain and that increase the necessary storage with MAX_APPROVAL_COALESCE_COUNT * CandidateHash per vote. Given that disputes are not the normal way of the network functioning and we will limit MAX_APPROVAL_COALESCE_COUNT in the single digits numbers, this should be good enough. Alternatively, we could try to create a better way to store this on-chain through indirection, if that's needed. ## Other fixes: - Fixed the fact that we were sending random assignments to non-validators, that was wrong because those won't do anything with it and they won't gossip it either because they do not have a grid topology set, so we would waste the random assignments. - Added metrics to be able to debug potential no-shows and mis-processing of approvals/assignments. ## TODO: - [x] Get feedback, that this is moving in the right direction. @ordian @sandreim @eskimor @burdges, let me know what you think. - [x] More and more testing. - [x] Test in versi. - [x] Make MAX_APPROVAL_COALESCE_COUNT & MAX_APPROVAL_COALESCE_WAIT_MILLIS a parachain host configuration. - [x] Make sure the backwards compatibility works correctly - [x] Make sure this direction is compatible with other streams of work: https://github.com/paritytech/polkadot-sdk/issues/635 & https://github.com/paritytech/polkadot-sdk/issues/742 - [x] Final versi burn-in before merging --------- Signed-off-by: Alexandru Gheorghe <alexandru.gheorghe@parity.io>
This commit is contained in:
Alexandru Gheorghe
committed by
GitHub
GitHub
parent
d18a682bf7
commit
a84dd0dba5
@@ -29,8 +29,7 @@ use polkadot_node_network_protocol::{
|
||||
MAX_PARALLEL_ATTESTED_CANDIDATE_REQUESTS,
|
||||
},
|
||||
v2::{self as protocol_v2, StatementFilter},
|
||||
vstaging as protocol_vstaging, IfDisconnected, PeerId, UnifiedReputationChange as Rep,
|
||||
Versioned, View,
|
||||
v3 as protocol_v3, IfDisconnected, PeerId, UnifiedReputationChange as Rep, Versioned, View,
|
||||
};
|
||||
use polkadot_node_primitives::{
|
||||
SignedFullStatementWithPVD, StatementWithPVD as FullStatementWithPVD,
|
||||
@@ -366,7 +365,7 @@ pub(crate) async fn handle_network_update<Context>(
|
||||
gum::trace!(target: LOG_TARGET, ?peer_id, ?role, ?protocol_version, "Peer connected");
|
||||
|
||||
let versioned_protocol = if protocol_version != ValidationVersion::V2.into() &&
|
||||
protocol_version != ValidationVersion::VStaging.into()
|
||||
protocol_version != ValidationVersion::V3.into()
|
||||
{
|
||||
return
|
||||
} else {
|
||||
@@ -432,28 +431,28 @@ pub(crate) async fn handle_network_update<Context>(
|
||||
net_protocol::StatementDistributionMessage::V2(
|
||||
protocol_v2::StatementDistributionMessage::V1Compatibility(_),
|
||||
) |
|
||||
net_protocol::StatementDistributionMessage::VStaging(
|
||||
protocol_vstaging::StatementDistributionMessage::V1Compatibility(_),
|
||||
net_protocol::StatementDistributionMessage::V3(
|
||||
protocol_v3::StatementDistributionMessage::V1Compatibility(_),
|
||||
) => return,
|
||||
net_protocol::StatementDistributionMessage::V2(
|
||||
protocol_v2::StatementDistributionMessage::Statement(relay_parent, statement),
|
||||
) |
|
||||
net_protocol::StatementDistributionMessage::VStaging(
|
||||
protocol_vstaging::StatementDistributionMessage::Statement(relay_parent, statement),
|
||||
net_protocol::StatementDistributionMessage::V3(
|
||||
protocol_v3::StatementDistributionMessage::Statement(relay_parent, statement),
|
||||
) =>
|
||||
handle_incoming_statement(ctx, state, peer_id, relay_parent, statement, reputation)
|
||||
.await,
|
||||
net_protocol::StatementDistributionMessage::V2(
|
||||
protocol_v2::StatementDistributionMessage::BackedCandidateManifest(inner),
|
||||
) |
|
||||
net_protocol::StatementDistributionMessage::VStaging(
|
||||
protocol_vstaging::StatementDistributionMessage::BackedCandidateManifest(inner),
|
||||
net_protocol::StatementDistributionMessage::V3(
|
||||
protocol_v3::StatementDistributionMessage::BackedCandidateManifest(inner),
|
||||
) => handle_incoming_manifest(ctx, state, peer_id, inner, reputation).await,
|
||||
net_protocol::StatementDistributionMessage::V2(
|
||||
protocol_v2::StatementDistributionMessage::BackedCandidateKnown(inner),
|
||||
) |
|
||||
net_protocol::StatementDistributionMessage::VStaging(
|
||||
protocol_vstaging::StatementDistributionMessage::BackedCandidateKnown(inner),
|
||||
net_protocol::StatementDistributionMessage::V3(
|
||||
protocol_v3::StatementDistributionMessage::BackedCandidateKnown(inner),
|
||||
) => handle_incoming_acknowledgement(ctx, state, peer_id, inner, reputation).await,
|
||||
},
|
||||
NetworkBridgeEvent::PeerViewChange(peer_id, view) =>
|
||||
@@ -806,13 +805,13 @@ fn pending_statement_network_message(
|
||||
protocol_v2::StatementDistributionMessage::Statement(relay_parent, signed)
|
||||
})
|
||||
.map(|msg| (vec![peer.0], Versioned::V2(msg).into())),
|
||||
ValidationVersion::VStaging => statement_store
|
||||
ValidationVersion::V3 => statement_store
|
||||
.validator_statement(originator, compact)
|
||||
.map(|s| s.as_unchecked().clone())
|
||||
.map(|signed| {
|
||||
protocol_vstaging::StatementDistributionMessage::Statement(relay_parent, signed)
|
||||
protocol_v3::StatementDistributionMessage::Statement(relay_parent, signed)
|
||||
})
|
||||
.map(|msg| (vec![peer.0], Versioned::VStaging(msg).into())),
|
||||
.map(|msg| (vec![peer.0], Versioned::V3(msg).into())),
|
||||
ValidationVersion::V1 => {
|
||||
gum::error!(
|
||||
target: LOG_TARGET,
|
||||
@@ -945,10 +944,10 @@ async fn send_pending_grid_messages<Context>(
|
||||
)
|
||||
.into(),
|
||||
)),
|
||||
ValidationVersion::VStaging => messages.push((
|
||||
ValidationVersion::V3 => messages.push((
|
||||
vec![peer_id.0],
|
||||
Versioned::VStaging(
|
||||
protocol_vstaging::StatementDistributionMessage::BackedCandidateManifest(
|
||||
Versioned::V3(
|
||||
protocol_v3::StatementDistributionMessage::BackedCandidateManifest(
|
||||
manifest,
|
||||
),
|
||||
)
|
||||
@@ -960,7 +959,7 @@ async fn send_pending_grid_messages<Context>(
|
||||
"Bug ValidationVersion::V1 should not be used in statement-distribution v2,
|
||||
legacy should have handled this"
|
||||
);
|
||||
}
|
||||
},
|
||||
};
|
||||
},
|
||||
grid::ManifestKind::Acknowledgement => {
|
||||
@@ -1308,8 +1307,8 @@ async fn circulate_statement<Context>(
|
||||
let statement_to_v2_peers =
|
||||
filter_by_peer_version(&statement_to_peers, ValidationVersion::V2.into());
|
||||
|
||||
let statement_to_vstaging_peers =
|
||||
filter_by_peer_version(&statement_to_peers, ValidationVersion::VStaging.into());
|
||||
let statement_to_v3_peers =
|
||||
filter_by_peer_version(&statement_to_peers, ValidationVersion::V3.into());
|
||||
|
||||
// ship off the network messages to the network bridge.
|
||||
if !statement_to_v2_peers.is_empty() {
|
||||
@@ -1331,17 +1330,17 @@ async fn circulate_statement<Context>(
|
||||
.await;
|
||||
}
|
||||
|
||||
if !statement_to_vstaging_peers.is_empty() {
|
||||
if !statement_to_v3_peers.is_empty() {
|
||||
gum::debug!(
|
||||
target: LOG_TARGET,
|
||||
?compact_statement,
|
||||
n_peers = ?statement_to_peers.len(),
|
||||
"Sending statement to vstaging peers",
|
||||
"Sending statement to v3 peers",
|
||||
);
|
||||
|
||||
ctx.send_message(NetworkBridgeTxMessage::SendValidationMessage(
|
||||
statement_to_vstaging_peers,
|
||||
Versioned::VStaging(protocol_vstaging::StatementDistributionMessage::Statement(
|
||||
statement_to_v3_peers,
|
||||
Versioned::V3(protocol_v3::StatementDistributionMessage::Statement(
|
||||
relay_parent,
|
||||
statement.as_unchecked().clone(),
|
||||
))
|
||||
@@ -1887,8 +1886,7 @@ async fn provide_candidate_to_grid<Context>(
|
||||
}
|
||||
|
||||
let manifest_peers_v2 = filter_by_peer_version(&manifest_peers, ValidationVersion::V2.into());
|
||||
let manifest_peers_vstaging =
|
||||
filter_by_peer_version(&manifest_peers, ValidationVersion::VStaging.into());
|
||||
let manifest_peers_v3 = filter_by_peer_version(&manifest_peers, ValidationVersion::V3.into());
|
||||
if !manifest_peers_v2.is_empty() {
|
||||
gum::debug!(
|
||||
target: LOG_TARGET,
|
||||
@@ -1908,27 +1906,27 @@ async fn provide_candidate_to_grid<Context>(
|
||||
.await;
|
||||
}
|
||||
|
||||
if !manifest_peers_vstaging.is_empty() {
|
||||
if !manifest_peers_v3.is_empty() {
|
||||
gum::debug!(
|
||||
target: LOG_TARGET,
|
||||
?candidate_hash,
|
||||
local_validator = ?per_session.local_validator,
|
||||
n_peers = manifest_peers_vstaging.len(),
|
||||
"Sending manifest to vstaging peers"
|
||||
n_peers = manifest_peers_v3.len(),
|
||||
"Sending manifest to v3 peers"
|
||||
);
|
||||
|
||||
ctx.send_message(NetworkBridgeTxMessage::SendValidationMessage(
|
||||
manifest_peers_vstaging,
|
||||
Versioned::VStaging(
|
||||
protocol_vstaging::StatementDistributionMessage::BackedCandidateManifest(manifest),
|
||||
)
|
||||
manifest_peers_v3,
|
||||
Versioned::V3(protocol_v3::StatementDistributionMessage::BackedCandidateManifest(
|
||||
manifest,
|
||||
))
|
||||
.into(),
|
||||
))
|
||||
.await;
|
||||
}
|
||||
|
||||
let ack_peers_v2 = filter_by_peer_version(&ack_peers, ValidationVersion::V2.into());
|
||||
let ack_peers_vstaging = filter_by_peer_version(&ack_peers, ValidationVersion::VStaging.into());
|
||||
let ack_peers_v3 = filter_by_peer_version(&ack_peers, ValidationVersion::V3.into());
|
||||
if !ack_peers_v2.is_empty() {
|
||||
gum::debug!(
|
||||
target: LOG_TARGET,
|
||||
@@ -1948,22 +1946,20 @@ async fn provide_candidate_to_grid<Context>(
|
||||
.await;
|
||||
}
|
||||
|
||||
if !ack_peers_vstaging.is_empty() {
|
||||
if !ack_peers_v3.is_empty() {
|
||||
gum::debug!(
|
||||
target: LOG_TARGET,
|
||||
?candidate_hash,
|
||||
local_validator = ?per_session.local_validator,
|
||||
n_peers = ack_peers_vstaging.len(),
|
||||
"Sending acknowledgement to vstaging peers"
|
||||
n_peers = ack_peers_v3.len(),
|
||||
"Sending acknowledgement to v3 peers"
|
||||
);
|
||||
|
||||
ctx.send_message(NetworkBridgeTxMessage::SendValidationMessage(
|
||||
ack_peers_vstaging,
|
||||
Versioned::VStaging(
|
||||
protocol_vstaging::StatementDistributionMessage::BackedCandidateKnown(
|
||||
acknowledgement,
|
||||
),
|
||||
)
|
||||
ack_peers_v3,
|
||||
Versioned::V3(protocol_v3::StatementDistributionMessage::BackedCandidateKnown(
|
||||
acknowledgement,
|
||||
))
|
||||
.into(),
|
||||
))
|
||||
.await;
|
||||
@@ -2293,8 +2289,8 @@ fn post_acknowledgement_statement_messages(
|
||||
)
|
||||
.into(),
|
||||
)),
|
||||
ValidationVersion::VStaging => messages.push(Versioned::VStaging(
|
||||
protocol_vstaging::StatementDistributionMessage::Statement(
|
||||
ValidationVersion::V3 => messages.push(Versioned::V3(
|
||||
protocol_v3::StatementDistributionMessage::Statement(
|
||||
relay_parent,
|
||||
statement.as_unchecked().clone(),
|
||||
)
|
||||
@@ -2441,9 +2437,9 @@ fn acknowledgement_and_statement_messages(
|
||||
|
||||
let mut messages = match peer.1 {
|
||||
ValidationVersion::V2 => vec![(vec![peer.0], msg_v2.into())],
|
||||
ValidationVersion::VStaging => vec![(
|
||||
ValidationVersion::V3 => vec![(
|
||||
vec![peer.0],
|
||||
Versioned::VStaging(protocol_v2::StatementDistributionMessage::BackedCandidateKnown(
|
||||
Versioned::V3(protocol_v2::StatementDistributionMessage::BackedCandidateKnown(
|
||||
acknowledgement,
|
||||
))
|
||||
.into(),
|
||||
|
||||
@@ -2830,7 +2830,7 @@ fn inactive_local_participates_in_grid() {
|
||||
send_peer_message(
|
||||
&mut overseer,
|
||||
peer_a.clone(),
|
||||
protocol_vstaging::StatementDistributionMessage::BackedCandidateManifest(manifest),
|
||||
protocol_v3::StatementDistributionMessage::BackedCandidateManifest(manifest),
|
||||
)
|
||||
.await;
|
||||
|
||||
|
||||
Reference in New Issue
Block a user