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[Companion] Bound Election and Staking by MaxActiveValidators (#6157)

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* add maximum winners to multi phase election provider

* fallback to noelection

* fmt

* missing values

* convert boundedvec to inner before sort

* dont clone

* pr feedback

* update lockfile for {"substrate"}

* run onchain election on westend benchmark

Co-authored-by: parity-processbot <>
This commit is contained in:
Ankan
2022-11-09 12:00:03 +01:00
committed by GitHub
parent 6d7f33e612
commit a3fefccbeb
6 changed files with 252 additions and 246 deletions
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polkadot/runtime/kusama/src/lib.rs
+16 -4
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@@ -411,6 +411,9 @@ parameter_types! {
pub const MaxElectableTargets: u16 = u16::MAX;
pub NposSolutionPriority: TransactionPriority =
Perbill::from_percent(90) * TransactionPriority::max_value();
/// Setup election pallet to support maximum winners upto 2000. This will mean Staking Pallet
/// cannot have active validators higher than this count.
pub const MaxActiveValidators: u32 = 2000;
}
generate_solution_type!(
@@ -429,6 +432,9 @@ impl onchain::Config for OnChainSeqPhragmen {
type Solver = SequentialPhragmen<AccountId, runtime_common::elections::OnChainAccuracy>;
type DataProvider = Staking;
type WeightInfo = weights::frame_election_provider_support::WeightInfo<Runtime>;
type MaxWinners = MaxActiveValidators;
type VotersBound = MaxElectingVoters;
type TargetsBound = MaxElectableTargets;
}
impl pallet_election_provider_multi_phase::MinerConfig for Runtime {
@@ -476,10 +482,15 @@ impl pallet_election_provider_multi_phase::Config for Runtime {
type MinerTxPriority = NposSolutionPriority;
type DataProvider = Staking;
#[cfg(feature = "fast-runtime")]
type Fallback = onchain::UnboundedExecution<OnChainSeqPhragmen>;
type Fallback = onchain::OnChainExecution<OnChainSeqPhragmen>;
#[cfg(not(feature = "fast-runtime"))]
type Fallback = pallet_election_provider_multi_phase::NoFallback<Self>;
type GovernanceFallback = onchain::UnboundedExecution<OnChainSeqPhragmen>;
type Fallback = frame_election_provider_support::NoElection<(
AccountId,
BlockNumber,
Staking,
MaxActiveValidators,
)>;
type GovernanceFallback = onchain::OnChainExecution<OnChainSeqPhragmen>;
type Solver = SequentialPhragmen<
AccountId,
pallet_election_provider_multi_phase::SolutionAccuracyOf<Self>,
@@ -490,6 +501,7 @@ impl pallet_election_provider_multi_phase::Config for Runtime {
type WeightInfo = weights::pallet_election_provider_multi_phase::WeightInfo<Self>;
type MaxElectingVoters = MaxElectingVoters;
type MaxElectableTargets = MaxElectableTargets;
type MaxWinners = MaxActiveValidators;
}
parameter_types! {
@@ -553,7 +565,7 @@ impl pallet_staking::Config for Runtime {
type UnixTime = Timestamp;
type CurrencyToVote = CurrencyToVote;
type ElectionProvider = ElectionProviderMultiPhase;
type GenesisElectionProvider = onchain::UnboundedExecution<OnChainSeqPhragmen>;
type GenesisElectionProvider = onchain::OnChainExecution<OnChainSeqPhragmen>;
type RewardRemainder = Treasury;
type RuntimeEvent = RuntimeEvent;
type Slash = Treasury;