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Code Issues Packages Projects Releases Wiki Activity

avoid reshuffling active validators (#2605)

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This commit is contained in:
Robert Habermeier
2021-03-10 17:19:53 -06:00
committed by GitHub
parent 40a584bebc
commit 0fac590b84
4 changed files with 88 additions and 11 deletions
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polkadot/runtime/parachains/src/inclusion.rs
+6 -6
View File
@@ -1213,7 +1213,7 @@ mod tests {
let validator_public = validator_pubkeys(&validators);
new_test_ext(genesis_config(paras)).execute_with(|| {
shared::Module::<Test>::set_active_validators(validator_public.clone());
shared::Module::<Test>::set_active_validators_ascending(validator_public.clone());
shared::Module::<Test>::set_session_index(5);
let signing_context = SigningContext {
@@ -1446,7 +1446,7 @@ mod tests {
let validator_public = validator_pubkeys(&validators);
new_test_ext(genesis_config(paras)).execute_with(|| {
shared::Module::<Test>::set_active_validators(validator_public.clone());
shared::Module::<Test>::set_active_validators_ascending(validator_public.clone());
shared::Module::<Test>::set_session_index(5);
let signing_context = SigningContext {
@@ -1611,7 +1611,7 @@ mod tests {
let validator_public = validator_pubkeys(&validators);
new_test_ext(genesis_config(paras)).execute_with(|| {
shared::Module::<Test>::set_active_validators(validator_public.clone());
shared::Module::<Test>::set_active_validators_ascending(validator_public.clone());
shared::Module::<Test>::set_session_index(5);
run_to_block(5, |_| None);
@@ -2098,7 +2098,7 @@ mod tests {
let validator_public = validator_pubkeys(&validators);
new_test_ext(genesis_config(paras)).execute_with(|| {
shared::Module::<Test>::set_active_validators(validator_public.clone());
shared::Module::<Test>::set_active_validators_ascending(validator_public.clone());
shared::Module::<Test>::set_session_index(5);
run_to_block(5, |_| None);
@@ -2295,7 +2295,7 @@ mod tests {
let validator_public = validator_pubkeys(&validators);
new_test_ext(genesis_config(paras)).execute_with(|| {
shared::Module::<Test>::set_active_validators(validator_public.clone());
shared::Module::<Test>::set_active_validators_ascending(validator_public.clone());
shared::Module::<Test>::set_session_index(5);
run_to_block(5, |_| None);
@@ -2392,7 +2392,7 @@ mod tests {
let validator_public = validator_pubkeys(&validators);
new_test_ext(genesis_config(paras)).execute_with(|| {
shared::Module::<Test>::set_active_validators(validator_public.clone());
shared::Module::<Test>::set_active_validators_ascending(validator_public.clone());
shared::Module::<Test>::set_session_index(5);
let validators_new = vec![
polkadot/runtime/parachains/src/mock.rs
+13 -1
View File
@@ -135,9 +135,21 @@ impl crate::inclusion_inherent::Config for Test { }
impl crate::session_info::Config for Test { }
thread_local! {
pub static DISCOVERY_AUTHORITIES: RefCell<Vec<AuthorityDiscoveryId>> = RefCell::new(Vec::new());
}
pub fn discovery_authorities() -> Vec<AuthorityDiscoveryId> {
DISCOVERY_AUTHORITIES.with(|r| r.borrow().clone())
}
pub fn set_discovery_authorities(new: Vec<AuthorityDiscoveryId>) {
DISCOVERY_AUTHORITIES.with(|r| *r.borrow_mut() = new);
}
impl crate::session_info::AuthorityDiscoveryConfig for Test {
fn authorities() -> Vec<AuthorityDiscoveryId> {
Vec::new()
discovery_authorities()
}
}
polkadot/runtime/parachains/src/session_info.rs
+58 -3
View File
@@ -90,8 +90,8 @@ impl<T: Config> Module<T> {
let validators = notification.validators.clone();
let discovery_keys = <T as AuthorityDiscoveryConfig>::authorities();
let assignment_keys = AssignmentKeysUnsafe::get();
let active_set = <shared::Module<T>>::active_validator_indices();
let validator_groups = <scheduler::Module<T>>::validator_groups();
let n_cores = n_parachains + config.parathread_cores;
let zeroth_delay_tranche_width = config.zeroth_delay_tranche_width;
@@ -118,7 +118,7 @@ impl<T: Config> Module<T> {
}
// create a new entry in `Sessions` with information about the current session
let new_session_info = SessionInfo {
validators: take_active_subset(&active_set, &validators),
validators, // these are from the notification and are thus already correct.
discovery_keys: take_active_subset(&active_set, &discovery_keys),
assignment_keys: take_active_subset(&active_set, &assignment_keys),
validator_groups,
@@ -175,7 +175,8 @@ mod tests {
use crate::initializer::SessionChangeNotification;
use crate::configuration::HostConfiguration;
use frame_support::traits::{OnFinalize, OnInitialize};
use primitives::v1::BlockNumber;
use primitives::v1::{BlockNumber, ValidatorId, ValidatorIndex};
use keyring::Sr25519Keyring;
fn run_to_block(
to: BlockNumber,
@@ -319,4 +320,58 @@ mod tests {
assert_eq!(session.needed_approvals, 42);
})
}
#[test]
fn session_info_active_subsets() {
let unscrambled = vec![
Sr25519Keyring::Alice,
Sr25519Keyring::Bob,
Sr25519Keyring::Charlie,
Sr25519Keyring::Dave,
Sr25519Keyring::Eve,
];
let active_set = vec![ValidatorIndex(4), ValidatorIndex(0), ValidatorIndex(2)];
let unscrambled_validators: Vec<ValidatorId>
= unscrambled.iter().map(|v| v.public().into()).collect();
let unscrambled_discovery: Vec<AuthorityDiscoveryId>
= unscrambled.iter().map(|v| v.public().into()).collect();
let unscrambled_assignment: Vec<AssignmentId>
= unscrambled.iter().map(|v| v.public().into()).collect();
let validators = take_active_subset(&active_set, &unscrambled_validators);
new_test_ext(genesis_config()).execute_with(|| {
Shared::set_active_validators_with_indices(
active_set.clone(),
validators.clone(),
);
assert_eq!(Shared::active_validator_indices(), active_set);
AssignmentKeysUnsafe::set(unscrambled_assignment.clone());
crate::mock::set_discovery_authorities(unscrambled_discovery.clone());
assert_eq!(<crate::mock::Test>::authorities(), unscrambled_discovery);
// invoke directly, because `run_to_block` will invoke `Shared` and clobber our
// values.
SessionInfo::initializer_on_new_session(&SessionChangeNotification {
session_index: 1,
validators: validators.clone(),
..Default::default()
});
let session = Sessions::get(&1).unwrap();
assert_eq!(session.validators, validators);
assert_eq!(
session.discovery_keys,
take_active_subset(&active_set, &unscrambled_discovery),
);
assert_eq!(
session.assignment_keys,
take_active_subset(&active_set, &unscrambled_assignment),
);
})
}
}
polkadot/runtime/parachains/src/shared.rs
+11 -1
View File
@@ -116,12 +116,22 @@ impl<T: Config> Module<T> {
}
#[cfg(test)]
pub(crate) fn set_active_validators(active: Vec<ValidatorId>) {
pub(crate) fn set_active_validators_ascending(active: Vec<ValidatorId>) {
ActiveValidatorIndices::set(
(0..active.len()).map(|i| ValidatorIndex(i as _)).collect()
);
ActiveValidatorKeys::set(active);
}
#[cfg(test)]
pub(crate) fn set_active_validators_with_indices(
indices: Vec<ValidatorIndex>,
keys: Vec<ValidatorId>,
) {
assert_eq!(indices.len(), keys.len());
ActiveValidatorIndices::set(indices);
ActiveValidatorKeys::set(keys);
}
}
#[cfg(test)]