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collator protocol changes for elastic scaling (validator side) (#3302)

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Fixes #3128.

This introduces a new variant for the collation response from the
collator that includes the parent head data. For now, collators won't
send this new variant. We'll need to change the collator side of the
collator protocol to detect all the cores assigned to a para and send
the parent head data in the case when it's more than 1 core.

- [x] validate approach
- [x] check head data hash
This commit is contained in:
ordian
2024-03-15 20:43:28 +01:00
committed by GitHub
parent e8b51f60cc
commit 02e1a7f476
16 changed files with 409 additions and 136 deletions
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polkadot/node/collation-generation/src/tests.rs
+17 -16
View File
@@ -390,11 +390,11 @@ fn sends_distribute_collation_message() {
assert_eq!(to_collator_protocol.len(), 1);
match AllMessages::from(to_collator_protocol.pop().unwrap()) {
AllMessages::CollatorProtocol(CollatorProtocolMessage::DistributeCollation(
CandidateReceipt { descriptor, .. },
_pov,
..,
)) => {
AllMessages::CollatorProtocol(CollatorProtocolMessage::DistributeCollation {
candidate_receipt,
..
}) => {
let CandidateReceipt { descriptor, .. } = candidate_receipt;
// signature generation is non-deterministic, so we can't just assert that the
// expected descriptor is correct. What we can do is validate that the produced
// descriptor has a valid signature, then just copy in the generated signature
@@ -529,11 +529,11 @@ fn fallback_when_no_validation_code_hash_api() {
assert_eq!(to_collator_protocol.len(), 1);
match &to_collator_protocol[0] {
AllMessages::CollatorProtocol(CollatorProtocolMessage::DistributeCollation(
CandidateReceipt { descriptor, .. },
_pov,
..,
)) => {
AllMessages::CollatorProtocol(CollatorProtocolMessage::DistributeCollation {
candidate_receipt,
..
}) => {
let CandidateReceipt { descriptor, .. } = candidate_receipt;
assert_eq!(expect_validation_code_hash, descriptor.validation_code_hash);
},
_ => panic!("received wrong message type"),
@@ -619,15 +619,16 @@ fn submit_collation_leads_to_distribution() {
assert_matches!(
overseer_recv(&mut virtual_overseer).await,
AllMessages::CollatorProtocol(CollatorProtocolMessage::DistributeCollation(
ccr,
AllMessages::CollatorProtocol(CollatorProtocolMessage::DistributeCollation {
candidate_receipt,
parent_head_data_hash,
..
)) => {
}) => {
let CandidateReceipt { descriptor, .. } = candidate_receipt;
assert_eq!(parent_head_data_hash, parent_head.hash());
assert_eq!(ccr.descriptor().persisted_validation_data_hash, expected_pvd.hash());
assert_eq!(ccr.descriptor().para_head, dummy_head_data().hash());
assert_eq!(ccr.descriptor().validation_code_hash, validation_code_hash);
assert_eq!(descriptor.persisted_validation_data_hash, expected_pvd.hash());
assert_eq!(descriptor.para_head, dummy_head_data().hash());
assert_eq!(descriptor.validation_code_hash, validation_code_hash);
}
);