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Better Handling of Candidates Who Become Invulnerable (#2801)

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* remove candidate when to invulnerable

* fix

* candidates to collators

* make parameters consistent and more reasonable

* add call to kick invulnerable candidates

* factor removal into weight

* fix: use accrue instead of add

* make set_invulnerables non-atomic

* benchmark add_invulnerable to account for candidate removal

* don't remove from candidates with set_invulnerables

* fix bounds on benchmarking

* protect against zero min invulnerables underflow

* extra event and tests

* make candidates/invulnerables self-cleaning on session change

* add integrity test

* unused imports

* make rococo-contracts have 1 collator
This commit is contained in:
joe petrowski
2023-07-07 13:18:27 +02:00
committed by GitHub
parent 8f75f13e5a
commit 5a8134029a
23 changed files with 594 additions and 261 deletions
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cumulus/parachains/runtimes/assets/asset-hub-polkadot/src/lib.rs
+3 -6
View File
@@ -611,10 +611,7 @@ impl pallet_aura::Config for Runtime {
parameter_types! {
pub const PotId: PalletId = PalletId(*b"PotStake");
pub const MaxCandidates: u32 = 1000;
pub const MinCandidates: u32 = 5;
pub const SessionLength: BlockNumber = 6 * HOURS;
pub const MaxInvulnerables: u32 = 100;
// `StakingAdmin` pluralistic body.
pub const StakingAdminBodyId: BodyId = BodyId::Defense;
}
@@ -630,9 +627,9 @@ impl pallet_collator_selection::Config for Runtime {
type Currency = Balances;
type UpdateOrigin = CollatorSelectionUpdateOrigin;
type PotId = PotId;
type MaxCandidates = MaxCandidates;
type MinCandidates = MinCandidates;
type MaxInvulnerables = MaxInvulnerables;
type MaxCandidates = ConstU32<100>;
type MinEligibleCollators = ConstU32<4>;
type MaxInvulnerables = ConstU32<20>;
// should be a multiple of session or things will get inconsistent
type KickThreshold = Period;
type ValidatorId = <Self as frame_system::Config>::AccountId;
cumulus/parachains/runtimes/assets/asset-hub-polkadot/src/weights/pallet_collator_selection.rs
+21 -13
View File
@@ -147,23 +147,31 @@ impl<T: frame_system::Config> pallet_collator_selection::WeightInfo for WeightIn
.saturating_add(T::DbWeight::get().reads(3))
.saturating_add(T::DbWeight::get().writes(4))
}
/// Storage: CollatorSelection Invulnerables (r:1 w:1)
/// Proof: CollatorSelection Invulnerables (max_values: Some(1), max_size: Some(3202), added: 3697, mode: MaxEncodedLen)
/// Storage: Session NextKeys (r:1 w:0)
/// Proof Skipped: Session NextKeys (max_values: None, max_size: None, mode: Measured)
/// The range of component `b` is `[1, 99]`.
fn add_invulnerable(b: u32, ) -> Weight {
/// Storage: CollatorSelection Invulnerables (r:1 w:1)
/// Proof: CollatorSelection Invulnerables (max_values: Some(1), max_size: Some(641), added: 1136, mode: MaxEncodedLen)
/// Storage: CollatorSelection Candidates (r:1 w:1)
/// Proof: CollatorSelection Candidates (max_values: Some(1), max_size: Some(4802), added: 5297, mode: MaxEncodedLen)
/// Storage: System Account (r:1 w:1)
/// Proof: System Account (max_values: None, max_size: Some(128), added: 2603, mode: MaxEncodedLen)
/// The range of component `b` is `[1, 19]`.
/// The range of component `c` is `[1, 99]`.
fn add_invulnerable(b: u32, c: u32, ) -> Weight {
// Proof Size summary in bytes:
// Measured: `581 + b * (37 ±0)`
// Estimated: `4687 + b * (37 ±0)`
// Minimum execution time: 269_126_000 picoseconds.
Weight::from_parts(286_711_880, 0)
.saturating_add(Weight::from_parts(0, 4687))
// Standard Error: 22_887
.saturating_add(Weight::from_parts(813_399, 0).saturating_mul(b.into()))
.saturating_add(T::DbWeight::get().reads(2))
.saturating_add(T::DbWeight::get().writes(1))
// Measured: `757 + b * (32 ±0) + c * (53 ±0)`
// Estimated: `6287 + b * (37 ±0) + c * (53 ±0)`
// Minimum execution time: 52_720_000 picoseconds.
Weight::from_parts(56_102_459, 0)
.saturating_add(Weight::from_parts(0, 6287))
// Standard Error: 12_957
.saturating_add(Weight::from_parts(26_422, 0).saturating_mul(b.into()))
// Standard Error: 2_456
.saturating_add(Weight::from_parts(128_528, 0).saturating_mul(c.into()))
.saturating_add(T::DbWeight::get().reads(4))
.saturating_add(T::DbWeight::get().writes(3))
.saturating_add(Weight::from_parts(0, 37).saturating_mul(b.into()))
.saturating_add(Weight::from_parts(0, 53).saturating_mul(c.into()))
}
/// Storage: CollatorSelection Invulnerables (r:1 w:1)
/// Proof: CollatorSelection Invulnerables (max_values: Some(1), max_size: Some(3202), added: 3697, mode: MaxEncodedLen)