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impl approval distribution (#2160)

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* initial impl approval distribution

* initial tests and fixes

* batching seems difficult: different peers have different needs

* bridge: fix test after merge

* some guide updates

* only send assignments to peers who know about the block

* fix a test, add approvals test

* simplify

* do not send assignment to peers for finalized blocks

* guide: protocol input and output

* one more test

* more comments, logs, initial metrics

* fix a typo

* one more thing: early return when reimporting a thing locally
This commit is contained in:
Andronik Ordian
2021-01-26 00:14:32 +01:00
committed by GitHub
parent fa6e4b4488
commit 3f1e1a6ff7
18 changed files with 2119 additions and 80 deletions
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polkadot/node/network/protocol/src/lib.rs
+32 -12
View File
@@ -282,15 +282,18 @@ impl View {
pub mod v1 {
use polkadot_primitives::v1::{
Hash, CollatorId, Id as ParaId, ErasureChunk, CandidateReceipt,
SignedAvailabilityBitfield, PoV, CandidateHash, ValidatorIndex,
SignedAvailabilityBitfield, PoV, CandidateHash, ValidatorIndex, CandidateIndex,
};
use polkadot_node_primitives::{
SignedFullStatement,
approval::{IndirectAssignmentCert, IndirectSignedApprovalVote},
};
use polkadot_node_primitives::SignedFullStatement;
use parity_scale_codec::{Encode, Decode};
use super::RequestId;
use std::convert::TryFrom;
/// Network messages used by the availability distribution subsystem
#[derive(Debug, Clone, Encode, Decode, PartialEq)]
#[derive(Debug, Clone, Encode, Decode, PartialEq, Eq)]
pub enum AvailabilityDistributionMessage {
/// An erasure chunk for a given candidate hash.
#[codec(index = "0")]
@@ -298,7 +301,7 @@ pub mod v1 {
}
/// Network messages used by the availability recovery subsystem.
#[derive(Debug, Clone, Encode, Decode, PartialEq)]
#[derive(Debug, Clone, Encode, Decode, PartialEq, Eq)]
pub enum AvailabilityRecoveryMessage {
/// Request a chunk for a given candidate hash and validator index.
RequestChunk(RequestId, CandidateHash, ValidatorIndex),
@@ -308,7 +311,7 @@ pub mod v1 {
}
/// Network messages used by the bitfield distribution subsystem.
#[derive(Debug, Clone, Encode, Decode, PartialEq)]
#[derive(Debug, Clone, Encode, Decode, PartialEq, Eq)]
pub enum BitfieldDistributionMessage {
/// A signed availability bitfield for a given relay-parent hash.
#[codec(index = "0")]
@@ -316,7 +319,7 @@ pub mod v1 {
}
/// Network messages used by the PoV distribution subsystem.
#[derive(Debug, Clone, Encode, Decode, PartialEq)]
#[derive(Debug, Clone, Encode, Decode, PartialEq, Eq)]
pub enum PoVDistributionMessage {
/// Notification that we are awaiting the given PoVs (by hash) against a
/// specific relay-parent hash.
@@ -329,14 +332,27 @@ pub mod v1 {
}
/// Network messages used by the statement distribution subsystem.
#[derive(Debug, Clone, Encode, Decode, PartialEq)]
#[derive(Debug, Clone, Encode, Decode, PartialEq, Eq)]
pub enum StatementDistributionMessage {
/// A signed full statement under a given relay-parent.
#[codec(index = "0")]
Statement(Hash, SignedFullStatement)
}
#[derive(Debug, Clone, Copy, PartialEq, thiserror::Error)]
/// Network messages used by the approval distribution subsystem.
#[derive(Debug, Clone, Encode, Decode, PartialEq, Eq)]
pub enum ApprovalDistributionMessage {
/// Assignments for candidates in recent, unfinalized blocks.
///
/// Actually checking the assignment may yield a different result.
#[codec(index = "0")]
Assignments(Vec<(IndirectAssignmentCert, CandidateIndex)>),
/// Approvals for candidates in some recent, unfinalized block.
#[codec(index = "1")]
Approvals(Vec<IndirectSignedApprovalVote>),
}
#[derive(Debug, Clone, Copy, PartialEq, Eq, thiserror::Error)]
#[allow(missing_docs)]
pub enum CompressedPoVError {
#[error("Failed to compress a PoV")]
@@ -350,7 +366,7 @@ pub mod v1 {
}
/// SCALE and Zstd encoded [`PoV`].
#[derive(Debug, Clone, Encode, Decode, PartialEq)]
#[derive(Debug, Clone, Encode, Decode, PartialEq, Eq)]
pub struct CompressedPoV(Vec<u8>);
impl CompressedPoV {
@@ -398,7 +414,7 @@ pub mod v1 {
}
/// Network messages used by the collator protocol subsystem
#[derive(Debug, Clone, Encode, Decode, PartialEq)]
#[derive(Debug, Clone, Encode, Decode, PartialEq, Eq)]
pub enum CollatorProtocolMessage {
/// Declare the intent to advertise collations under a collator ID.
#[codec(index = "0")]
@@ -416,7 +432,7 @@ pub mod v1 {
}
/// All network messages on the validation peer-set.
#[derive(Debug, Clone, Encode, Decode, PartialEq)]
#[derive(Debug, Clone, Encode, Decode, PartialEq, Eq)]
pub enum ValidationProtocol {
/// Availability distribution messages
#[codec(index = "0")]
@@ -433,15 +449,19 @@ pub mod v1 {
/// Availability recovery messages
#[codec(index = "4")]
AvailabilityRecovery(AvailabilityRecoveryMessage),
/// Approval distribution messages
#[codec(index = "5")]
ApprovalDistribution(ApprovalDistributionMessage),
}
impl_try_from!(ValidationProtocol, AvailabilityDistribution, AvailabilityDistributionMessage);
impl_try_from!(ValidationProtocol, BitfieldDistribution, BitfieldDistributionMessage);
impl_try_from!(ValidationProtocol, PoVDistribution, PoVDistributionMessage);
impl_try_from!(ValidationProtocol, StatementDistribution, StatementDistributionMessage);
impl_try_from!(ValidationProtocol, ApprovalDistribution, ApprovalDistributionMessage);
/// All network messages on the collation peer-set.
#[derive(Debug, Clone, Encode, Decode, PartialEq)]
#[derive(Debug, Clone, Encode, Decode, PartialEq, Eq)]
pub enum CollationProtocol {
/// Collator protocol messages
#[codec(index = "0")]